ClusterCockpit/cc-metric-store
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04cbc95de436c602724b55d6ab2b574f2e168b51
cc-metric-store/1f/0df6df7655/0/full.jsonl
Jan Eitzinger 02c6ebc242 Checkpoint: 1f0df6df7655 
Entire-Session: 5bdec311-7e4d-4543-91ea-fce0dbab2f32
Entire-Strategy: manual-commit
Entire-Agent: Claude Code
Ephemeral-branch: entire/3cc9420-e3b0c4
2026-03-03 07:37:54 +01:00

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18→\tgithub.com/aws/aws-sdk-go-v2 v1.41.1 // indirect\n 19→\tgithub.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.4 // indirect\n 20→\tgithub.com/aws/aws-sdk-go-v2/config v1.32.8 // indirect\n 21→\tgithub.com/aws/aws-sdk-go-v2/credentials v1.19.8 // indirect\n 22→\tgithub.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.17 // indirect\n 23→\tgithub.com/aws/aws-sdk-go-v2/internal/configsources v1.4.17 // indirect\n 24→\tgithub.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.17 // indirect\n 25→\tgithub.com/aws/aws-sdk-go-v2/internal/ini v1.8.4 // indirect\n 26→\tgithub.com/aws/aws-sdk-go-v2/internal/v4a v1.4.17 // indirect\n 27→\tgithub.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.4 // indirect\n 28→\tgithub.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.8 // indirect\n 29→\tgithub.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.17 // indirect\n 30→\tgithub.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.17 // indirect\n 31→\tgithub.com/aws/aws-sdk-go-v2/service/s3 v1.96.0 // indirect\n 32→\tgithub.com/aws/aws-sdk-go-v2/service/signin v1.0.5 // indirect\n 33→\tgithub.com/aws/aws-sdk-go-v2/service/sso v1.30.9 // indirect\n 34→\tgithub.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.14 // indirect\n 35→\tgithub.com/aws/aws-sdk-go-v2/service/sts v1.41.6 // indirect\n 36→\tgithub.com/aws/smithy-go v1.24.0 // indirect\n 37→\tgithub.com/fsnotify/fsnotify v1.9.0 // indirect\n 38→\tgithub.com/go-openapi/jsonpointer v0.22.4 // indirect\n 39→\tgithub.com/go-openapi/jsonreference v0.21.4 // indirect\n 40→\tgithub.com/go-openapi/spec v0.22.3 // indirect\n 41→\tgithub.com/go-openapi/swag/conv v0.25.4 // indirect\n 42→\tgithub.com/go-openapi/swag/jsonname v0.25.4 // indirect\n 43→\tgithub.com/go-openapi/swag/jsonutils v0.25.4 // indirect\n 44→\tgithub.com/go-openapi/swag/loading v0.25.4 // indirect\n 45→\tgithub.com/go-openapi/swag/stringutils v0.25.4 // indirect\n 46→\tgithub.com/go-openapi/swag/typeutils v0.25.4 // indirect\n 47→\tgithub.com/go-openapi/swag/yamlutils v0.25.4 // indirect\n 48→\tgithub.com/golang/snappy v1.0.0 // indirect\n 49→\tgithub.com/influxdata/line-protocol/v2 v2.2.1 // indirect\n 50→\tgithub.com/klauspost/compress v1.18.4 // indirect\n 51→\tgithub.com/linkedin/goavro/v2 v2.15.0 // indirect\n 52→\tgithub.com/mattn/go-sqlite3 v1.14.34 // indirect\n 53→\tgithub.com/nats-io/nats.go v1.49.0 // indirect\n 54→\tgithub.com/nats-io/nkeys v0.4.15 // indirect\n 55→\tgithub.com/nats-io/nuid v1.0.1 // indirect\n 56→\tgithub.com/swaggo/files v1.0.1 // indirect\n 57→\tgo.yaml.in/yaml/v3 v3.0.4 // indirect\n 58→\tgolang.org/x/crypto v0.48.0 // indirect\n 59→\tgolang.org/x/mod v0.33.0 // indirect\n 60→\tgolang.org/x/net v0.51.0 // indirect\n 61→\tgolang.org/x/sync v0.19.0 // indirect\n 62→\tgolang.org/x/sys v0.41.0 // indirect\n 63→\tgolang.org/x/tools v0.42.0 // indirect\n 64→\tgopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect\n 65→)\n 66→"}]},"uuid":"08f9f4f3-467b-4837-8416-537d70973a7c","timestamp":"2026-03-03T06:22:34.921Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-metric-store/go.mod","content":"module github.com/ClusterCockpit/cc-metric-store\n\ngo 1.25.0\n\nrequire (\n\tgithub.com/ClusterCockpit/cc-backend v1.4.5-0.20260224192951-a6e23dd52e80\n\tgithub.com/ClusterCockpit/cc-lib/v2 v2.7.0\n\tgithub.com/ClusterCockpit/cc-line-protocol/v2 v2.4.0\n\tgithub.com/golang-jwt/jwt/v4 v4.5.0\n\tgithub.com/google/gops v0.3.29\n\tgithub.com/santhosh-tekuri/jsonschema/v5 v5.3.1\n\tgithub.com/swaggo/http-swagger v1.3.4\n\tgithub.com/swaggo/swag v1.16.6\n)\n\nrequire (\n\tgithub.com/KyleBanks/depth v1.2.1 // indirect\n\tgithub.com/aws/aws-sdk-go-v2 v1.41.1 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.4 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/config v1.32.8 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/credentials v1.19.8 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.17 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/internal/configsources v1.4.17 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.17 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/internal/ini v1.8.4 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/internal/v4a v1.4.17 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.4 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.8 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.17 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.17 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/s3 v1.96.0 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/signin v1.0.5 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/sso v1.30.9 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.14 // indirect\n\tgithub.com/aws/aws-sdk-go-v2/service/sts v1.41.6 // indirect\n\tgithub.com/aws/smithy-go v1.24.0 // indirect\n\tgithub.com/fsnotify/fsnotify v1.9.0 // indirect\n\tgithub.com/go-openapi/jsonpointer v0.22.4 // indirect\n\tgithub.com/go-openapi/jsonreference v0.21.4 // indirect\n\tgithub.com/go-openapi/spec v0.22.3 // indirect\n\tgithub.com/go-openapi/swag/conv v0.25.4 // indirect\n\tgithub.com/go-openapi/swag/jsonname v0.25.4 // indirect\n\tgithub.com/go-openapi/swag/jsonutils v0.25.4 // indirect\n\tgithub.com/go-openapi/swag/loading v0.25.4 // indirect\n\tgithub.com/go-openapi/swag/stringutils v0.25.4 // indirect\n\tgithub.com/go-openapi/swag/typeutils v0.25.4 // indirect\n\tgithub.com/go-openapi/swag/yamlutils v0.25.4 // indirect\n\tgithub.com/golang/snappy v1.0.0 // indirect\n\tgithub.com/influxdata/line-protocol/v2 v2.2.1 // indirect\n\tgithub.com/klauspost/compress v1.18.4 // indirect\n\tgithub.com/linkedin/goavro/v2 v2.15.0 // indirect\n\tgithub.com/mattn/go-sqlite3 v1.14.34 // indirect\n\tgithub.com/nats-io/nats.go v1.49.0 // 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{"parentUuid":"eb065a4b-3311-4212-af45-5690426a3cbc","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01SW3zbNasRYc5iSRZ7JtWgm","type":"tool_result","content":"go: downloading github.com/ClusterCockpit/cc-backend v1.4.5-0.20260303062012-8b0f63b1f849\ngo: upgraded github.com/ClusterCockpit/cc-backend v1.4.5-0.20260224192951-a6e23dd52e80 => v1.4.5-0.20260303062012-8b0f63b1f849","is_error":false}]},"uuid":"3a0adac0-6a9b-4242-a527-b78f87449b31","timestamp":"2026-03-03T06:24:56.576Z","toolUseResult":{"stdout":"go: downloading github.com/ClusterCockpit/cc-backend v1.4.5-0.20260303062012-8b0f63b1f849\ngo: upgraded github.com/ClusterCockpit/cc-backend v1.4.5-0.20260224192951-a6e23dd52e80 => v1.4.5-0.20260303062012-8b0f63b1f849","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"eb065a4b-3311-4212-af45-5690426a3cbc"}
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{"parentUuid":"b2a230f4-dec6-47b9-ac47-38d44ca44c88","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_015EwE8oivB79HDYoGzEm8A9","type":"tool_result","content":"","is_error":false}]},"uuid":"7bdc04fc-ed34-4aca-89f2-b03be22a64d2","timestamp":"2026-03-03T06:24:59.557Z","toolUseResult":{"stdout":"","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"b2a230f4-dec6-47b9-ac47-38d44ca44c88"}
{"parentUuid":"7bdc04fc-ed34-4aca-89f2-b03be22a64d2","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01TT3c9sNd1ePH1EJN1pSQEJ","type":"message","role":"assistant","content":[{"type":"text","text":"Now let me check if the build still works, since the diagnostics showed compile errors:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":120,"cache_read_input_tokens":23952,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":120},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYffknDvbGZBSR5P9Cbv3","type":"assistant","uuid":"4e67d9ae-048c-44a4-ad27-5f48decd2ce6","timestamp":"2026-03-03T06:25:02.498Z"}
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{"parentUuid":"c6e1ba27-6abe-4ea9-b5cd-9c0133126a5c","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01U6GSfFLh8gmao1gQV7YQ7U","type":"message","role":"assistant","content":[{"type":"text","text":"There are build errors. Let me investigate and fix them."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":216,"cache_read_input_tokens":24072,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":216},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYffm6ZzTcK4GVtwfNH1y","type":"assistant","uuid":"f713030c-2887-4026-b80d-ed48bbddfa82","timestamp":"2026-03-03T06:25:06.234Z"}
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{"parentUuid":"7c2f4975-a4d2-4812-b472-d31644cc87d2","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01B7PHrZzrBhVUA5DhYg6yvy","toolUseID":"toolu_01B7PHrZzrBhVUA5DhYg6yvy","timestamp":"2026-03-03T06:25:07.132Z","uuid":"461ed56e-7167-42f1-b72f-09fa1b535593"}
{"parentUuid":"7c2f4975-a4d2-4812-b472-d31644cc87d2","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01B7PHrZzrBhVUA5DhYg6yvy","type":"tool_result","content":" 350→// @produce json\n 351→// @param cluster query string false \"If the lines in the body do not have a cluster tag, use this value instead.\"\n 352→// @success 200 {string} string \"ok\"\n 353→// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n 354→// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n 355→// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n 356→// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n 357→// @security ApiKeyAuth\n 358→// @router /write/ [post]\n 359→func writeMetrics(rw http.ResponseWriter, r *http.Request) {\n 360→\trw.Header().Add(\"Content-Type\", \"application/json\")\n 361→\n 362→\t// Extract the \"cluster\" query parameter without allocating a url.Values map.\n 363→\tcluster := queryParam(r.URL.RawQuery, \"cluster\")\n 364→\n 365→\t// Stream directly from the request body instead of copying it into a\n 366→\t// temporary buffer via io.ReadAll. The line-protocol decoder supports\n 367→\t// io.Reader natively, so this avoids the largest heap allocation.\n 368→\tms := metricstore.GetMemoryStore()\n 369→\tdec := lineprotocol.NewDecoder(r.Body)\n 370→\tif err := metricstore.DecodeLine(dec, ms, cluster); err != nil {\n 371→\t\tcclog.Errorf(\"/api/write error: %s\", err.Error())\n 372→\t\thandleError(err, http.StatusBadRequest, rw)\n 373→\t\treturn\n 374→\t}\n 375→\trw.WriteHeader(http.StatusOK)\n 376→}\n 377→\n 378→// handleDebug godoc\n 379→// @summary Debug endpoint\n 380→// @tags debug\n 381→// @description This endpoint allows the users to print the content of\n 382→// nodes/clusters/metrics to review the state of the data.\n 383→// @produce json\n 384→// @param selector query string false \"Selector\"\n 385→// @success 200 {string} string \"Debug dump\"\n 386→// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n 387→// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n 388→// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n 389→// @failure 500 {object} api.ErrorResponse \"Internal Server Error\""}]},"uuid":"c7e583fb-fd4a-4a16-8c3a-63b5ba013110","timestamp":"2026-03-03T06:25:07.131Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","content":"// @produce json\n// @param cluster query string false \"If the lines in the body do not have a cluster tag, use this value instead.\"\n// @success 200 {string} string \"ok\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /write/ [post]\nfunc writeMetrics(rw http.ResponseWriter, r *http.Request) {\n\trw.Header().Add(\"Content-Type\", \"application/json\")\n\n\t// Extract the \"cluster\" query parameter without allocating a url.Values map.\n\tcluster := queryParam(r.URL.RawQuery, \"cluster\")\n\n\t// Stream directly from the request body instead of copying it into a\n\t// temporary buffer via io.ReadAll. The line-protocol decoder supports\n\t// io.Reader natively, so this avoids the largest heap allocation.\n\tms := metricstore.GetMemoryStore()\n\tdec := lineprotocol.NewDecoder(r.Body)\n\tif err := metricstore.DecodeLine(dec, ms, cluster); err != nil {\n\t\tcclog.Errorf(\"/api/write error: %s\", err.Error())\n\t\thandleError(err, http.StatusBadRequest, rw)\n\t\treturn\n\t}\n\trw.WriteHeader(http.StatusOK)\n}\n\n// handleDebug godoc\n// @summary Debug endpoint\n// @tags debug\n// @description This endpoint allows the users to print the content of\n// nodes/clusters/metrics to review the state of the data.\n// @produce json\n// @param selector query string false \"Selector\"\n// @success 200 {string} string \"Debug dump\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"","numLines":40,"startLine":350,"totalLines":449}},"sourceToolAssistantUUID":"7c2f4975-a4d2-4812-b472-d31644cc87d2"}
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{"parentUuid":"5515ede7-626f-4cc4-8b07-67f9bbb26fb1","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01X4f6emfSdq5qLsXSf6Tx3R","type":"message","role":"assistant","content":[{"type":"text","text":"The `queryParam` function doesn't exist anywhere. Let me also check the `DecodeLine` signature and the line-protocol import issue."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":148,"cache_read_input_tokens":25233,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":148},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYffmoXqMjphS6oYAY8rd","type":"assistant","uuid":"fb7b907a-97c6-4bea-831a-d1de379de5d0","timestamp":"2026-03-03T06:25:15.829Z"}
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{"parentUuid":"3a1e29c1-b67c-422a-8b24-55aa05f74e23","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Ch3fkfQ6rJJ5tz6ipE4JsX","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-metric-store.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package api\n 7→\n 8→import (\n 9→\t\"bufio\"\n 10→\t\"encoding/json\"\n 11→\t\"errors\"\n 12→\t\"fmt\"\n 13→\t\"log\"\n 14→\t\"math\"\n 15→\t\"net/http\"\n 16→\t\"strconv\"\n 17→\t\"strings\"\n 18→\n 19→\t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n 20→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\""}]},"uuid":"8e40107b-3d74-4f8f-b437-545ffaa6d536","timestamp":"2026-03-03T06:25:16.812Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-metric-store.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"bufio\"\n\t\"encoding/json\"\n\t\"errors\"\n\t\"fmt\"\n\t\"log\"\n\t\"math\"\n\t\"net/http\"\n\t\"strconv\"\n\t\"strings\"\n\n\t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"","numLines":20,"startLine":1,"totalLines":449}},"sourceToolAssistantUUID":"3a1e29c1-b67c-422a-8b24-55aa05f74e23"}
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{"parentUuid":"e991706d-00c8-4910-b1ec-65710c775a75","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01LyMXpRBeefLS7Qg57pdyW2","type":"tool_result","content":" 20→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 21→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 22→\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n 23→\t\"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n 24→)\n 25→\n 26→// ErrorResponse model\n 27→type ErrorResponse struct {\n 28→\t// Statustext of Errorcode\n 29→\tStatus string `json:\"status\"`\n 30→\tError string `json:\"error\"` // Error Message\n 31→}\n 32→\n 33→// DefaultAPIResponse model\n 34→type DefaultAPIResponse struct {"}]},"uuid":"4615fdc2-7e29-44a1-95c8-7f0387f2b11a","timestamp":"2026-03-03T06:25:44.287Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","content":"\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n\t\"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n)\n\n// ErrorResponse model\ntype ErrorResponse struct {\n\t// Statustext of Errorcode\n\tStatus string `json:\"status\"`\n\tError string `json:\"error\"` // Error Message\n}\n\n// DefaultAPIResponse model\ntype DefaultAPIResponse struct {","numLines":15,"startLine":20,"totalLines":449}},"sourceToolAssistantUUID":"e991706d-00c8-4910-b1ec-65710c775a75"}
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{"parentUuid":"8b19f34d-e9da-4b39-a3a4-a55ef2ed14d8","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"type":"tool_result","content":"Exit code 2\n\"/Users/jan/go/pkg/mod/github.com/ClusterCockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/\": No such file or directory (os error 2)\n\n\"/Users/jan/go/pkg/mod/github.com/ClusterCockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/\": No such file or directory (os error 2)","is_error":true,"tool_use_id":"toolu_01NsF1gKwM8QvFkyA4zLHyVT"}]},"uuid":"8600f028-b11f-42ec-b92e-365dd434af02","timestamp":"2026-03-03T06:26:00.781Z","toolUseResult":"Error: Exit code 2\n\"/Users/jan/go/pkg/mod/github.com/ClusterCockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/\": No such file or directory (os error 2)\n\n\"/Users/jan/go/pkg/mod/github.com/ClusterCockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/\": No such file or directory (os error 2)","sourceToolAssistantUUID":"8b19f34d-e9da-4b39-a3a4-a55ef2ed14d8"}
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{"parentUuid":"28ef7a6a-1ece-4fec-8d06-d30b23573782","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_011QCCGEvbwknccCxwoYM8BH","type":"tool_result","content":"cc-backend@v1.4.0\ncc-backend@v1.4.1-0.20260123065417-b7df4f7ccade\ncc-backend@v1.4.4\ncc-backend@v1.4.4-0.20260126082752-084d00cb0d0c\ncc-backend@v1.4.4-0.20260128102127-0d857b49a256\ncc-backend@v1.4.5-0.20260224192951-a6e23dd52e80\ncc-backend@v1.4.5-0.20260303062012-8b0f63b1f849\ncc-lib\ncc-lib@v0.10.0\ncc-lib@v0.10.1\ncc-lib@v0.10.2\ncc-lib@v0.11.0\ncc-lib@v1.0.0\ncc-lib@v1.0.1\ncc-lib@v1.0.2\ncc-line-protocol\ncc-node-controller@v0.1.0\ncc-units@v0.4.0","is_error":false}]},"uuid":"26f913e4-9054-4877-8d8e-6c3bc3375c23","timestamp":"2026-03-03T06:26:51.287Z","toolUseResult":{"stdout":"cc-backend@v1.4.0\ncc-backend@v1.4.1-0.20260123065417-b7df4f7ccade\ncc-backend@v1.4.4\ncc-backend@v1.4.4-0.20260126082752-084d00cb0d0c\ncc-backend@v1.4.4-0.20260128102127-0d857b49a256\ncc-backend@v1.4.5-0.20260224192951-a6e23dd52e80\ncc-backend@v1.4.5-0.20260303062012-8b0f63b1f849\ncc-lib\ncc-lib@v0.10.0\ncc-lib@v0.10.1\ncc-lib@v0.10.2\ncc-lib@v0.11.0\ncc-lib@v1.0.0\ncc-lib@v1.0.1\ncc-lib@v1.0.2\ncc-line-protocol\ncc-node-controller@v0.1.0\ncc-units@v0.4.0","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"28ef7a6a-1ece-4fec-8d06-d30b23573782"}
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{"parentUuid":"aa061196-d828-4aa3-9bbb-c273a9fb5984","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Dz5TkBAJDYrfjcHVKn3XEk","type":"tool_result","content":"/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/query.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/config.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/walCheckpoint.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/checkpoint.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/parquetArchive.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/healthcheck.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/archive.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/metricstore.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/stats.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/buffer.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/debug.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/level.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/api.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/lineprotocol.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/metricstore_test.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/parquetArchive_test.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/configSchema.go","is_error":false}]},"uuid":"accb853e-e458-4de4-8980-dc8f8ab2d05c","timestamp":"2026-03-03T06:27:02.872Z","toolUseResult":{"stdout":"/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/query.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/config.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/walCheckpoint.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/checkpoint.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/parquetArchive.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/healthcheck.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/archive.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/metricstore.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/stats.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/buffer.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/debug.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/level.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/api.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/lineprotocol.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/metricstore_test.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/parquetArchive_test.go\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/configSchema.go","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"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{"parentUuid":"5e08b0cb-1f0c-49e6-9db6-9e3bae007536","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_0118hrweFntqnBUxXd6bK8LF","type":"tool_result","content":"194:func DecodeLine(dec *lineprotocol.Decoder,","is_error":false}]},"uuid":"ba6b05aa-7a4b-4f31-9a0b-8b49dfddbb59","timestamp":"2026-03-03T06:27:09.131Z","toolUseResult":{"stdout":"194:func DecodeLine(dec *lineprotocol.Decoder,","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"5e08b0cb-1f0c-49e6-9db6-9e3bae007536"}
{"parentUuid":"ba6b05aa-7a4b-4f31-9a0b-8b49dfddbb59","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01X1A4mXMfYG67jtC2pqEm6c","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01Xyk4WRxrsgocrer5fj3TDY","name":"Read","input":{"file_path":"/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/lineprotocol.go","offset":190,"limit":10},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":184,"cache_read_input_tokens":29026,"output_tokens":148,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":184,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYffvLGW3cibLVxQPm7zG","type":"assistant","uuid":"ddd3ad34-f8ad-4cc1-a872-133232d06095","timestamp":"2026-03-03T06:27:12.053Z"}
{"parentUuid":"ddd3ad34-f8ad-4cc1-a872-133232d06095","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01Xyk4WRxrsgocrer5fj3TDY","toolUseID":"toolu_01Xyk4WRxrsgocrer5fj3TDY","timestamp":"2026-03-03T06:27:13.851Z","uuid":"1d7648e4-1882-493f-a321-fdec62c340d9"}
{"parentUuid":"ddd3ad34-f8ad-4cc1-a872-133232d06095","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Xyk4WRxrsgocrer5fj3TDY","type":"tool_result","content":" 190→//\n 191→// When the checkpoint format is \"wal\" each successfully decoded sample is also\n 192→// sent to WALMessages so the WAL staging goroutine can persist it durably\n 193→// before the next binary snapshot.\n 194→func DecodeLine(dec *lineprotocol.Decoder,\n 195→\tms *MemoryStore,\n 196→\tclusterDefault string,\n 197→) error {\n 198→\t// Reduce allocations in loop:\n 199→\tt := time.Now()"}]},"uuid":"7537cde9-7270-46b4-880d-e2106a65398c","timestamp":"2026-03-03T06:27:13.850Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/lineprotocol.go","content":"//\n// When the checkpoint format is \"wal\" each successfully decoded sample is also\n// sent to WALMessages so the WAL staging goroutine can persist it durably\n// before the next binary snapshot.\nfunc DecodeLine(dec *lineprotocol.Decoder,\n\tms *MemoryStore,\n\tclusterDefault string,\n) error {\n\t// Reduce allocations in loop:\n\tt := time.Now()","numLines":10,"startLine":190,"totalLines":367}},"sourceToolAssistantUUID":"ddd3ad34-f8ad-4cc1-a872-133232d06095"}
{"parentUuid":"7537cde9-7270-46b4-880d-e2106a65398c","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_0184gBYrYcUjYoEzcxRbChhQ","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01R9EP5ySrH9CifJkgGtJ1Sr","name":"Bash","input":{"command":"head -10 \"$(go env GOMODCACHE)/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/lineprotocol.go\"","description":"Check lineprotocol import in new cc-backend"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":399,"cache_read_input_tokens":29210,"output_tokens":144,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":399,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYffvgFHn1q7GnxKnRn9c","type":"assistant","uuid":"7b910ff3-34ae-4d40-9985-6353f1841b1d","timestamp":"2026-03-03T06:27:16.782Z"}
{"parentUuid":"7b910ff3-34ae-4d40-9985-6353f1841b1d","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01R9EP5ySrH9CifJkgGtJ1Sr","type":"tool_result","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\n// This file implements ingestion of InfluxDB line-protocol metric data received\n// over NATS. Each line encodes one metric sample with the following structure:\n//\n//\t<measurement>[,cluster=<c>][,hostname=<h>][,type=<t>][,type-id=<id>][,subtype=<s>][,stype-id=<id>] value=<v> [<timestamp>]\n//","is_error":false}]},"uuid":"9030063a-bc6f-48cd-8ff0-0e080d33ce07","timestamp":"2026-03-03T06:28:47.775Z","toolUseResult":{"stdout":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\n// This file implements ingestion of InfluxDB line-protocol metric data received\n// over NATS. Each line encodes one metric sample with the following structure:\n//\n//\t<measurement>[,cluster=<c>][,hostname=<h>][,type=<t>][,type-id=<id>][,subtype=<s>][,stype-id=<id>] value=<v> [<timestamp>]\n//","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"7b910ff3-34ae-4d40-9985-6353f1841b1d"}
{"parentUuid":"9030063a-bc6f-48cd-8ff0-0e080d33ce07","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01XqjanFKNbs7JXPVGUMSjhu","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01HQYdjMWTmxfhdheB1cHg1k","name":"Bash","input":{"command":"grep \"lineprotocol\" \"$(go env GOMODCACHE)/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260303062012-8b0f63b1f849/pkg/metricstore/lineprotocol.go\" | head -5","description":"Check which lineprotocol package cc-backend uses"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":323,"cache_read_input_tokens":29609,"output_tokens":151,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":323,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYfg3br52BLDJeLqaoVBT","type":"assistant","uuid":"0a5bcaaa-2ee8-4440-8ccc-ecbb70b03560","timestamp":"2026-03-03T06:28:52.735Z"}
{"parentUuid":"0a5bcaaa-2ee8-4440-8ccc-ecbb70b03560","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HQYdjMWTmxfhdheB1cHg1k","type":"tool_result","content":"\t\"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n\t\t\t\t\t\tdec := lineprotocol.NewDecoderWithBytes(m)\n\t\t\t\tdec := lineprotocol.NewDecoderWithBytes(data)\nfunc DecodeLine(dec *lineprotocol.Decoder,\n\t\t\tif val.Kind() == lineprotocol.Float {","is_error":false}]},"uuid":"7bbe3e85-618c-4572-b15f-bfd0bb404522","timestamp":"2026-03-03T06:28:54.622Z","toolUseResult":{"stdout":"\t\"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n\t\t\t\t\t\tdec := lineprotocol.NewDecoderWithBytes(m)\n\t\t\t\tdec := lineprotocol.NewDecoderWithBytes(data)\nfunc DecodeLine(dec *lineprotocol.Decoder,\n\t\t\tif val.Kind() == lineprotocol.Float {","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"0a5bcaaa-2ee8-4440-8ccc-ecbb70b03560"}
{"parentUuid":"7bbe3e85-618c-4572-b15f-bfd0bb404522","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01TcZuJmUbQTZrg92S77v4nS","type":"message","role":"assistant","content":[{"type":"text","text":"Good — both the new cc-backend and this project use `github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol`, so the `DecodeLine` type mismatch in the diagnostics was from before the update. Now I need to fix the `queryParam` issue. Let me check what the old cc-backend version had."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":256,"cache_read_input_tokens":29932,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":256},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYfg475iZDDzGrRPUtBFr","type":"assistant","uuid":"b635169a-6ff5-49ee-ad16-9dc8624b9948","timestamp":"2026-03-03T06:28:58.675Z"}
{"parentUuid":"b635169a-6ff5-49ee-ad16-9dc8624b9948","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01TcZuJmUbQTZrg92S77v4nS","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01C6uqYxJ5zvnm4WFs1GB7aj","name":"Bash","input":{"command":"grep -rn \"queryParam\" \"$(go env GOMODCACHE)/github.com/!cluster!cockpit/cc-backend@v1.4.5-0.20260224192951-a6e23dd52e80/pkg/metricstore/\"","description":"Check if queryParam existed in old cc-backend"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":256,"cache_read_input_tokens":29932,"output_tokens":222,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":256,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYfg475iZDDzGrRPUtBFr","type":"assistant","uuid":"1eb1d301-b589-4538-98dd-1522442d9cf0","timestamp":"2026-03-03T06:28:59.890Z"}
{"parentUuid":"1eb1d301-b589-4538-98dd-1522442d9cf0","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01C6uqYxJ5zvnm4WFs1GB7aj","type":"tool_result","content":"","is_error":false}]},"uuid":"49a571bc-ee85-4c41-b8bb-72837b517a3b","timestamp":"2026-03-03T06:29:09.751Z","toolUseResult":{"stdout":"","stderr":"","interrupted":false,"isImage":false,"returnCodeInterpretation":"No matches found","noOutputExpected":false},"sourceToolAssistantUUID":"1eb1d301-b589-4538-98dd-1522442d9cf0"}
{"parentUuid":"49a571bc-ee85-4c41-b8bb-72837b517a3b","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01GFuxozWsB7Q2UQZhDAxbEx","type":"message","role":"assistant","content":[{"type":"text","text":"It wasn't in the old version either. Let me check git log to understand how `queryParam` got introduced."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":248,"cache_read_input_tokens":30188,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":248},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYfg5DgNTuGerCzQ3zZV2","type":"assistant","uuid":"ba061ac9-171f-4f2d-9570-9767092d0fd0","timestamp":"2026-03-03T06:29:12.272Z"}
{"parentUuid":"ba061ac9-171f-4f2d-9570-9767092d0fd0","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01GFuxozWsB7Q2UQZhDAxbEx","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01PK1vP3uYFjL15uNaGx2bAW","name":"Bash","input":{"command":"git log --oneline -10 -- internal/api/metricstore.go","description":"Check recent changes to metricstore.go"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":248,"cache_read_input_tokens":30188,"output_tokens":119,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":248,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYfg5DgNTuGerCzQ3zZV2","type":"assistant","uuid":"488528b7-5711-4906-9746-e33e26a97149","timestamp":"2026-03-03T06:29:13.321Z"}
{"parentUuid":"488528b7-5711-4906-9746-e33e26a97149","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01PK1vP3uYFjL15uNaGx2bAW","type":"tool_result","content":"3cc9420 Merge branch 'dev' of github.com:ClusterCockpit/cc-metric-store into dev\nb764120 Integrate entire. Upgrade dependencies\n4de275a fix error conditional\nef3504d Update to the error handling\nbe6d4be Fix healthcheck api\n6aca448 Port to newest cclib. Use metricstore as library.","is_error":false}]},"uuid":"06c3609e-0f59-4d8b-8a0a-a9bfb4209316","timestamp":"2026-03-03T06:29:13.400Z","toolUseResult":{"stdout":"3cc9420 Merge branch 'dev' of github.com:ClusterCockpit/cc-metric-store into dev\nb764120 Integrate entire. Upgrade dependencies\n4de275a fix error conditional\nef3504d Update to the error handling\nbe6d4be Fix healthcheck api\n6aca448 Port to newest cclib. Use metricstore as library.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"488528b7-5711-4906-9746-e33e26a97149"}
{"parentUuid":"06c3609e-0f59-4d8b-8a0a-a9bfb4209316","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01SsP17ecPmeAZKqYHHQi6AS","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01XLVKgwpBjfm8Ni4ywnum5T","name":"Bash","input":{"command":"git show b764120 -- internal/api/metricstore.go | head -80","description":"Check what changed in the most recent commit"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":219,"cache_read_input_tokens":30436,"output_tokens":95,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":219,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYfg5VRApmg58xo1ZSbqX","type":"assistant","uuid":"f60619b1-e2b0-44db-8d16-f99465e61977","timestamp":"2026-03-03T06:29:17.103Z"}
{"parentUuid":"f60619b1-e2b0-44db-8d16-f99465e61977","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01XLVKgwpBjfm8Ni4ywnum5T","type":"tool_result","content":"commit b764120501c303c64abe57d7fc892089929d8fea\nAuthor: Jan Eitzinger <jan@moebiusband.org>\nDate: Tue Mar 3 07:13:15 2026 +0100\n\n Integrate entire. Upgrade dependencies\n\ndiff --git a/internal/api/metricstore.go b/internal/api/metricstore.go\nindex e043079..d842256 100644\n--- a/internal/api/metricstore.go\n+++ b/internal/api/metricstore.go\n@@ -10,7 +10,6 @@ import (\n \t\"encoding/json\"\n \t\"errors\"\n \t\"fmt\"\n-\t\"io\"\n \t\"log\"\n \t\"math\"\n \t\"net/http\"\n@@ -22,7 +21,7 @@ import (\n \t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n \t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n \n-\t\"github.com/influxdata/line-protocol/v2/lineprotocol\"\n+\t\"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n )\n \n // ErrorResponse model\n@@ -356,16 +355,17 @@ func freeMetrics(rw http.ResponseWriter, r *http.Request) {\n // @security ApiKeyAuth\n // @router /write/ [post]\n func writeMetrics(rw http.ResponseWriter, r *http.Request) {\n-\tbytes, err := io.ReadAll(r.Body)\n \trw.Header().Add(\"Content-Type\", \"application/json\")\n-\tif err != nil {\n-\t\thandleError(err, http.StatusInternalServerError, rw)\n-\t\treturn\n-\t}\n \n+\t// Extract the \"cluster\" query parameter without allocating a url.Values map.\n+\tcluster := queryParam(r.URL.RawQuery, \"cluster\")\n+\n+\t// Stream directly from the request body instead of copying it into a\n+\t// temporary buffer via io.ReadAll. The line-protocol decoder supports\n+\t// io.Reader natively, so this avoids the largest heap allocation.\n \tms := metricstore.GetMemoryStore()\n-\tdec := lineprotocol.NewDecoderWithBytes(bytes)\n-\tif err := metricstore.DecodeLine(dec, ms, r.URL.Query().Get(\"cluster\")); err != nil {\n+\tdec := lineprotocol.NewDecoder(r.Body)\n+\tif err := metricstore.DecodeLine(dec, ms, cluster); err != nil {\n \t\tcclog.Errorf(\"/api/write error: %s\", err.Error())\n \t\thandleError(err, http.StatusBadRequest, rw)\n \t\treturn","is_error":false}]},"uuid":"a9d67658-3566-4c8f-8ae5-9b4601fd40d8","timestamp":"2026-03-03T06:29:17.160Z","toolUseResult":{"stdout":"commit b764120501c303c64abe57d7fc892089929d8fea\nAuthor: Jan Eitzinger <jan@moebiusband.org>\nDate: Tue Mar 3 07:13:15 2026 +0100\n\n Integrate entire. Upgrade dependencies\n\ndiff --git a/internal/api/metricstore.go b/internal/api/metricstore.go\nindex e043079..d842256 100644\n--- a/internal/api/metricstore.go\n+++ b/internal/api/metricstore.go\n@@ -10,7 +10,6 @@ import (\n \t\"encoding/json\"\n \t\"errors\"\n \t\"fmt\"\n-\t\"io\"\n \t\"log\"\n \t\"math\"\n \t\"net/http\"\n@@ -22,7 +21,7 @@ import (\n \t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n \t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n \n-\t\"github.com/influxdata/line-protocol/v2/lineprotocol\"\n+\t\"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n )\n \n // ErrorResponse model\n@@ -356,16 +355,17 @@ func freeMetrics(rw http.ResponseWriter, r *http.Request) {\n // @security ApiKeyAuth\n // @router /write/ [post]\n func writeMetrics(rw http.ResponseWriter, r *http.Request) {\n-\tbytes, err := io.ReadAll(r.Body)\n \trw.Header().Add(\"Content-Type\", \"application/json\")\n-\tif err != nil {\n-\t\thandleError(err, http.StatusInternalServerError, rw)\n-\t\treturn\n-\t}\n \n+\t// Extract the \"cluster\" query parameter without allocating a url.Values map.\n+\tcluster := queryParam(r.URL.RawQuery, \"cluster\")\n+\n+\t// Stream directly from the request body instead of copying it into a\n+\t// temporary buffer via io.ReadAll. The line-protocol decoder supports\n+\t// io.Reader natively, so this avoids the largest heap allocation.\n \tms := metricstore.GetMemoryStore()\n-\tdec := lineprotocol.NewDecoderWithBytes(bytes)\n-\tif err := metricstore.DecodeLine(dec, ms, r.URL.Query().Get(\"cluster\")); err != nil {\n+\tdec := lineprotocol.NewDecoder(r.Body)\n+\tif err := metricstore.DecodeLine(dec, ms, cluster); err != nil {\n \t\tcclog.Errorf(\"/api/write error: %s\", err.Error())\n \t\thandleError(err, http.StatusBadRequest, rw)\n \t\treturn","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"f60619b1-e2b0-44db-8d16-f99465e61977"}
{"parentUuid":"a9d67658-3566-4c8f-8ae5-9b4601fd40d8","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_019qZa2GczHytJrtkgYHhxiq","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"So the commit `b764120` introduced the `queryParam` function call but didn't include the function definition. This was a bug in the recent commit. I need to either:\n\n1. Implement the `queryParam` function, or\n2. Revert to `r.URL.Query().Get(\"cluster\")` \n\nThe `queryParam` function is meant to extract a query parameter without allocating a `url.Values` map. Let me check if `lineprotocol.NewDecoder` exists in cc-line-protocol.","signature":"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"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":830,"cache_read_input_tokens":30655,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":830},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYfg5mUp32WZuzL7zi1RE","type":"assistant","uuid":"54064d5a-0086-4d1d-a0af-0205b9441084","timestamp":"2026-03-03T06:29:21.465Z"}
{"parentUuid":"54064d5a-0086-4d1d-a0af-0205b9441084","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_019qZa2GczHytJrtkgYHhxiq","type":"message","role":"assistant","content":[{"type":"text","text":"The recent commit `b764120` introduced `queryParam` but never defined it. Let me also check if `NewDecoder` (vs `NewDecoderWithBytes`) exists in cc-line-protocol."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":830,"cache_read_input_tokens":30655,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":830},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYfg5mUp32WZuzL7zi1RE","type":"assistant","uuid":"ec553fd5-ad07-4a53-a8d9-f976bd7f2934","timestamp":"2026-03-03T06:29:22.363Z"}
{"parentUuid":"ec553fd5-ad07-4a53-a8d9-f976bd7f2934","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_019qZa2GczHytJrtkgYHhxiq","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01PEPhS6HmQgBN6vTZjVNRfZ","name":"Bash","input":{"command":"grep -n \"func NewDecoder\" \"$(go env GOMODCACHE)/github.com/!cluster!cockpit/cc-line-protocol/\" -r","description":"Check available constructors in cc-line-protocol"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":830,"cache_read_input_tokens":30655,"output_tokens":294,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":830,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYfg5mUp32WZuzL7zi1RE","type":"assistant","uuid":"9f2d49e8-0e59-4544-bf4e-1bf4d51d9c25","timestamp":"2026-03-03T06:29:23.381Z"}
{"parentUuid":"9f2d49e8-0e59-4544-bf4e-1bf4d51d9c25","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01PEPhS6HmQgBN6vTZjVNRfZ","type":"tool_result","content":"/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.3.0/lineprotocol/decoder.go:106:func NewDecoderWithBytes(buf []byte) *Decoder {\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.3.0/lineprotocol/decoder.go:116:func NewDecoder(r io.Reader) *Decoder {\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.4.0/lineprotocol/decoder.go:106:func NewDecoderWithBytes(buf []byte) *Decoder {\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.4.0/lineprotocol/decoder.go:116:func NewDecoder(r io.Reader) *Decoder {","is_error":false}]},"uuid":"fc0c297c-5a32-4d50-9064-ad6fa2b97bb2","timestamp":"2026-03-03T06:29:25.369Z","toolUseResult":{"stdout":"/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.3.0/lineprotocol/decoder.go:106:func NewDecoderWithBytes(buf []byte) *Decoder {\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.3.0/lineprotocol/decoder.go:116:func NewDecoder(r io.Reader) *Decoder {\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.4.0/lineprotocol/decoder.go:106:func NewDecoderWithBytes(buf []byte) *Decoder {\n/Users/jan/go/pkg/mod/github.com/!cluster!cockpit/cc-line-protocol/v2@v2.4.0/lineprotocol/decoder.go:116:func NewDecoder(r io.Reader) *Decoder {","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"9f2d49e8-0e59-4544-bf4e-1bf4d51d9c25"}
{"parentUuid":"fc0c297c-5a32-4d50-9064-ad6fa2b97bb2","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01S1N1zZBoVgqS3EyPqVBTWy","type":"message","role":"assistant","content":[{"type":"text","text":"Good, `NewDecoder(io.Reader)` exists. The only issue is the missing `queryParam` function. I'll implement it — it's a simple helper to avoid allocating a `url.Values` map, as the comment describes. Alternatively, I can just use the standard `r.URL.Query().Get(\"cluster\")` which is simpler and correct.\n\nGiven the comment says \"without allocating a url.Values map\", let me implement a simple `queryParam` helper:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":558,"cache_read_input_tokens":31485,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":558},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYfg6NTjxADQvpfi6RJsm","type":"assistant","uuid":"11e44112-6cc7-43ef-991f-48a9a0d86b5c","timestamp":"2026-03-03T06:29:29.376Z"}
{"parentUuid":"11e44112-6cc7-43ef-991f-48a9a0d86b5c","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01S1N1zZBoVgqS3EyPqVBTWy","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01SSFAawkoMSbfzMdHHH6AtU","name":"Read","input":{"file_path":"/Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","offset":355,"limit":25},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":558,"cache_read_input_tokens":31485,"output_tokens":223,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":558,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYfg6NTjxADQvpfi6RJsm","type":"assistant","uuid":"64e0d702-634a-4dc6-8934-f93647d9b320","timestamp":"2026-03-03T06:29:30.238Z"}
{"parentUuid":"64e0d702-634a-4dc6-8934-f93647d9b320","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01SSFAawkoMSbfzMdHHH6AtU","toolUseID":"toolu_01SSFAawkoMSbfzMdHHH6AtU","timestamp":"2026-03-03T06:29:30.267Z","uuid":"45fe650d-5758-4ac5-97b8-faedca3029ce"}
{"parentUuid":"64e0d702-634a-4dc6-8934-f93647d9b320","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01SSFAawkoMSbfzMdHHH6AtU","type":"tool_result","content":" 355→// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n 356→// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n 357→// @security ApiKeyAuth\n 358→// @router /write/ [post]\n 359→func writeMetrics(rw http.ResponseWriter, r *http.Request) {\n 360→\trw.Header().Add(\"Content-Type\", \"application/json\")\n 361→\n 362→\t// Extract the \"cluster\" query parameter without allocating a url.Values map.\n 363→\tcluster := queryParam(r.URL.RawQuery, \"cluster\")\n 364→\n 365→\t// Stream directly from the request body instead of copying it into a\n 366→\t// temporary buffer via io.ReadAll. The line-protocol decoder supports\n 367→\t// io.Reader natively, so this avoids the largest heap allocation.\n 368→\tms := metricstore.GetMemoryStore()\n 369→\tdec := lineprotocol.NewDecoder(r.Body)\n 370→\tif err := metricstore.DecodeLine(dec, ms, cluster); err != nil {\n 371→\t\tcclog.Errorf(\"/api/write error: %s\", err.Error())\n 372→\t\thandleError(err, http.StatusBadRequest, rw)\n 373→\t\treturn\n 374→\t}\n 375→\trw.WriteHeader(http.StatusOK)\n 376→}\n 377→\n 378→// handleDebug godoc\n 379→// @summary Debug endpoint"}]},"uuid":"b513b59f-4d10-4613-92d7-6b4760423c3b","timestamp":"2026-03-03T06:29:30.266Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","content":"// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /write/ [post]\nfunc writeMetrics(rw http.ResponseWriter, r *http.Request) {\n\trw.Header().Add(\"Content-Type\", \"application/json\")\n\n\t// Extract the \"cluster\" query parameter without allocating a url.Values map.\n\tcluster := queryParam(r.URL.RawQuery, \"cluster\")\n\n\t// Stream directly from the request body instead of copying it into a\n\t// temporary buffer via io.ReadAll. The line-protocol decoder supports\n\t// io.Reader natively, so this avoids the largest heap allocation.\n\tms := metricstore.GetMemoryStore()\n\tdec := lineprotocol.NewDecoder(r.Body)\n\tif err := metricstore.DecodeLine(dec, ms, cluster); err != nil {\n\t\tcclog.Errorf(\"/api/write error: %s\", err.Error())\n\t\thandleError(err, http.StatusBadRequest, rw)\n\t\treturn\n\t}\n\trw.WriteHeader(http.StatusOK)\n}\n\n// handleDebug godoc\n// @summary Debug endpoint","numLines":25,"startLine":355,"totalLines":449}},"sourceToolAssistantUUID":"64e0d702-634a-4dc6-8934-f93647d9b320"}
{"parentUuid":"b513b59f-4d10-4613-92d7-6b4760423c3b","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01PvnSdhJfs3P56DEZ8byFjD","type":"message","role":"assistant","content":[{"type":"text","text":"Let me find a good place to add the helper function. I'll put it near the end of the file or near the write function."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":730,"cache_read_input_tokens":32043,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":730},"output_tokens":3,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYfg6jgCEAYWhnKcb7yGS","type":"assistant","uuid":"48171b2c-b9b8-4796-ab34-24e47a3bee0a","timestamp":"2026-03-03T06:29:32.911Z"}
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{"parentUuid":"aa64cdd0-b55a-42b9-a754-42ca7d0b251c","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HUcsJr7NZBdyBNLsWTDwcs","type":"tool_result","content":" 448 /Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","is_error":false}]},"uuid":"6527d9f9-e74f-43ad-a783-16e220d89379","timestamp":"2026-03-03T06:29:33.796Z","toolUseResult":{"stdout":" 448 /Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"aa64cdd0-b55a-42b9-a754-42ca7d0b251c"}
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{"parentUuid":"cf63c1bf-c772-4e5f-ae10-c5dab446223b","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HnVhnXH949uEJ8hLyXWatr","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go has been updated successfully."}]},"uuid":"683e7b14-1c93-4567-933c-88ac04309af6","timestamp":"2026-03-03T06:29:50.080Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-metric-store/internal/api/metricstore.go","oldString":"\trw.Header().Set(\"Content-Type\", \"application/json\")\n\tbw := bufio.NewWriter(rw)\n\tdefer bw.Flush()\n\tif err := json.NewEncoder(bw).Encode(results); err != nil {\n\t\tlog.Print(err)\n\t\treturn\n\t}\n}","newString":"\trw.Header().Set(\"Content-Type\", \"application/json\")\n\tbw := bufio.NewWriter(rw)\n\tdefer bw.Flush()\n\tif err := json.NewEncoder(bw).Encode(results); err != nil {\n\t\tlog.Print(err)\n\t\treturn\n\t}\n}\n\n// queryParam extracts a single query parameter value from a raw query string\n// without allocating a url.Values map.\nfunc queryParam(rawQuery, key string) string {\n\tfor rawQuery != \"\" {\n\t\tvar kv string\n\t\tif i := strings.IndexByte(rawQuery, '&'); i >= 0 {\n\t\t\tkv, rawQuery = rawQuery[:i], rawQuery[i+1:]\n\t\t} else {\n\t\t\tkv, rawQuery = rawQuery, \"\"\n\t\t}\n\t\tif eq := strings.IndexByte(kv, '='); eq >= 0 {\n\t\t\tif kv[:eq] == key {\n\t\t\t\treturn kv[eq+1:]\n\t\t\t}\n\t\t} else if kv == key {\n\t\t\treturn \"\"\n\t\t}\n\t}\n\treturn \"\"\n}","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-metric-store.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"bufio\"\n\t\"encoding/json\"\n\t\"errors\"\n\t\"fmt\"\n\t\"log\"\n\t\"math\"\n\t\"net/http\"\n\t\"strconv\"\n\t\"strings\"\n\n\t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n\t\"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n)\n\n// ErrorResponse model\ntype ErrorResponse struct {\n\t// Statustext of Errorcode\n\tStatus string `json:\"status\"`\n\tError string `json:\"error\"` // Error Message\n}\n\n// DefaultAPIResponse model\ntype DefaultAPIResponse struct {\n\tMessage string `json:\"msg\"`\n}\n\n// handleError writes a standardized JSON error response with the given status code.\n// It logs the error at WARN level and ensures proper Content-Type headers are set.\nfunc handleError(err error, statusCode int, rw http.ResponseWriter) {\n\tcclog.Warnf(\"REST ERROR : %s\", err.Error())\n\trw.Header().Add(\"Content-Type\", \"application/json\")\n\trw.WriteHeader(statusCode)\n\tif err := json.NewEncoder(rw).Encode(ErrorResponse{\n\t\tStatus: http.StatusText(statusCode),\n\t\tError: err.Error(),\n\t}); err != nil {\n\t\tcclog.Errorf(\"Failed to encode error response: %v\", err)\n\t}\n}\n\ntype APIMetricData struct {\n\tError *string `json:\"error,omitempty\"`\n\tData schema.FloatArray `json:\"data,omitempty\"`\n\tFrom int64 `json:\"from\"`\n\tTo int64 `json:\"to\"`\n\tResolution int64 `json:\"resolution\"`\n\tAvg schema.Float `json:\"avg\"`\n\tMin schema.Float `json:\"min\"`\n\tMax schema.Float `json:\"max\"`\n}\n\n// TODO: Optimize this, just like the stats endpoint!\nfunc (data *APIMetricData) AddStats() {\n\tn := 0\n\tsum, min, max := 0.0, math.MaxFloat64, -math.MaxFloat64\n\tfor _, x := range data.Data {\n\t\tif x.IsNaN() {\n\t\t\tcontinue\n\t\t}\n\n\t\tn += 1\n\t\tsum += float64(x)\n\t\tmin = math.Min(min, float64(x))\n\t\tmax = math.Max(max, float64(x))\n\t}\n\n\tif n > 0 {\n\t\tavg := sum / float64(n)\n\t\tdata.Avg = schema.Float(avg)\n\t\tdata.Min = schema.Float(min)\n\t\tdata.Max = schema.Float(max)\n\t} else {\n\t\tdata.Avg, data.Min, data.Max = schema.NaN, schema.NaN, schema.NaN\n\t}\n}\n\nfunc (data *APIMetricData) ScaleBy(f schema.Float) {\n\tif f == 0 || f == 1 {\n\t\treturn\n\t}\n\n\tdata.Avg *= f\n\tdata.Min *= f\n\tdata.Max *= f\n\tfor i := 0; i < len(data.Data); i++ {\n\t\tdata.Data[i] *= f\n\t}\n}\n\nfunc (data *APIMetricData) PadDataWithNull(ms *metricstore.MemoryStore, from, to int64, metric string) {\n\tminfo, ok := ms.Metrics[metric]\n\tif !ok {\n\t\treturn\n\t}\n\n\tif (data.From / minfo.Frequency) > (from / minfo.Frequency) {\n\t\tpadfront := int((data.From / minfo.Frequency) - (from / minfo.Frequency))\n\t\tndata := make([]schema.Float, 0, padfront+len(data.Data))\n\t\tfor range padfront {\n\t\t\tndata = append(ndata, schema.NaN)\n\t\t}\n\t\tfor j := 0; j < len(data.Data); j++ {\n\t\t\tndata = append(ndata, data.Data[j])\n\t\t}\n\t\tdata.Data = ndata\n\t}\n}\n\ntype APIQueryRequest struct {\n\tCluster string `json:\"cluster\"`\n\tQueries []APIQuery `json:\"queries\"`\n\tForAllNodes []string `json:\"for-all-nodes\"`\n\tFrom int64 `json:\"from\"`\n\tTo int64 `json:\"to\"`\n\tWithStats bool `json:\"with-stats\"`\n\tWithData bool `json:\"with-data\"`\n\tWithPadding bool `json:\"with-padding\"`\n}\n\ntype APIQueryResponse struct {\n\tQueries []APIQuery `json:\"queries,omitempty\"`\n\tResults [][]APIMetricData `json:\"results\"`\n}\n\ntype APIQuery struct {\n\tType *string `json:\"type,omitempty\"`\n\tSubType *string `json:\"subtype,omitempty\"`\n\tMetric string `json:\"metric\"`\n\tHostname string `json:\"host\"`\n\tResolution int64 `json:\"resolution\"`\n\tTypeIds []string `json:\"type-ids,omitempty\"`\n\tSubTypeIds []string `json:\"subtype-ids,omitempty\"`\n\tScaleFactor schema.Float `json:\"scale-by,omitempty\"`\n\tAggregate bool `json:\"aggreg\"`\n}\n\n// handleQuery godoc\n// @summary Query metrics\n// @tags query\n// @description This endpoint allows the users to retrieve data from the\n// in-memory database. The CCMS will return data in JSON format for the\n// specified interval requested by the user\n// @accept json\n// @produce json\n// @param request body api.ApiQueryRequest true \"API query payload object\"\n// @success 200 {object} api.ApiQueryResponse \"API query response object\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 \t\t {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /query/ [get]\nfunc handleQuery(rw http.ResponseWriter, r *http.Request) {\n\tvar err error\n\tver := r.URL.Query().Get(\"version\")\n\tif ver == \"\" {\n\t\tver = \"v2\"\n\t}\n\treq := APIQueryRequest{WithStats: true, WithData: true, WithPadding: true}\n\tif err := json.NewDecoder(r.Body).Decode(&req); err != nil {\n\t\thandleError(err, http.StatusBadRequest, rw)\n\t\treturn\n\t}\n\n\tms := metricstore.GetMemoryStore()\n\n\tresponse := APIQueryResponse{\n\t\tResults: make([][]APIMetricData, 0, len(req.Queries)),\n\t}\n\tif req.ForAllNodes != nil {\n\t\tnodes := ms.ListChildren([]string{req.Cluster})\n\t\tfor _, node := range nodes {\n\t\t\tfor _, metric := range req.ForAllNodes {\n\t\t\t\tq := APIQuery{\n\t\t\t\t\tMetric: metric,\n\t\t\t\t\tHostname: node,\n\t\t\t\t}\n\t\t\t\treq.Queries = append(req.Queries, q)\n\t\t\t\tresponse.Queries = append(response.Queries, q)\n\t\t\t}\n\t\t}\n\t}\n\n\tfor _, query := range req.Queries {\n\t\tsels := make([]util.Selector, 0, 1)\n\t\tif query.Aggregate || query.Type == nil {\n\t\t\tsel := util.Selector{{String: req.Cluster}, {String: query.Hostname}}\n\t\t\tif query.Type != nil {\n\t\t\t\tif len(query.TypeIds) == 1 {\n\t\t\t\t\tsel = append(sel, util.SelectorElement{String: *query.Type + query.TypeIds[0]})\n\t\t\t\t} else {\n\t\t\t\t\tids := make([]string, len(query.TypeIds))\n\t\t\t\t\tfor i, id := range query.TypeIds {\n\t\t\t\t\t\tids[i] = *query.Type + id\n\t\t\t\t\t}\n\t\t\t\t\tsel = append(sel, util.SelectorElement{Group: ids})\n\t\t\t\t}\n\n\t\t\t\tif query.SubType != nil {\n\t\t\t\t\tif len(query.SubTypeIds) == 1 {\n\t\t\t\t\t\tsel = append(sel, util.SelectorElement{String: *query.SubType + query.SubTypeIds[0]})\n\t\t\t\t\t} else {\n\t\t\t\t\t\tids := make([]string, len(query.SubTypeIds))\n\t\t\t\t\t\tfor i, id := range query.SubTypeIds {\n\t\t\t\t\t\t\tids[i] = *query.SubType + id\n\t\t\t\t\t\t}\n\t\t\t\t\t\tsel = append(sel, util.SelectorElement{Group: ids})\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tsels = append(sels, sel)\n\t\t} else {\n\t\t\tfor _, typeID := range query.TypeIds {\n\t\t\t\tif query.SubType != nil {\n\t\t\t\t\tfor _, subTypeID := range query.SubTypeIds {\n\t\t\t\t\t\tsels = append(sels, util.Selector{\n\t\t\t\t\t\t\t{String: req.Cluster},\n\t\t\t\t\t\t\t{String: query.Hostname},\n\t\t\t\t\t\t\t{String: *query.Type + typeID},\n\t\t\t\t\t\t\t{String: *query.SubType + subTypeID},\n\t\t\t\t\t\t})\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tsels = append(sels, util.Selector{\n\t\t\t\t\t\t{String: req.Cluster},\n\t\t\t\t\t\t{String: query.Hostname},\n\t\t\t\t\t\t{String: *query.Type + typeID},\n\t\t\t\t\t})\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// log.Printf(\"query: %#v\\n\", query)\n\t\t// log.Printf(\"sels: %#v\\n\", sels)\n\n\t\tres := make([]APIMetricData, 0, len(sels))\n\t\tfor _, sel := range sels {\n\t\t\tdata := APIMetricData{}\n\n\t\t\tdata.Data, data.From, data.To, data.Resolution, err = ms.Read(sel, query.Metric, req.From, req.To, query.Resolution)\n\t\t\tif err != nil {\n\t\t\t\t// Skip Error If Just Missing Host or Metric, Continue\n\t\t\t\t// Empty Return For Metric Handled Gracefully By Frontend\n\t\t\t\tif err != metricstore.ErrNoHostOrMetric {\n\t\t\t\t\tmsg := err.Error()\n\t\t\t\t\tdata.Error = &msg\n\t\t\t\t\tres = append(res, data)\n\t\t\t\t} else {\n\t\t\t\t\tcclog.Warnf(\"failed to fetch '%s' from host '%s' (cluster: %s): %s\", query.Metric, query.Hostname, req.Cluster, err.Error())\n\t\t\t\t}\n\t\t\t\tcontinue\n\t\t\t}\n\n\t\t\tif req.WithStats {\n\t\t\t\tdata.AddStats()\n\t\t\t}\n\t\t\tif query.ScaleFactor != 0 {\n\t\t\t\tdata.ScaleBy(query.ScaleFactor)\n\t\t\t}\n\t\t\tif req.WithPadding {\n\t\t\t\tdata.PadDataWithNull(ms, req.From, req.To, query.Metric)\n\t\t\t}\n\t\t\tif !req.WithData {\n\t\t\t\tdata.Data = nil\n\t\t\t}\n\t\t\tres = append(res, data)\n\t\t}\n\t\tresponse.Results = append(response.Results, res)\n\t}\n\n\trw.Header().Set(\"Content-Type\", \"application/json\")\n\tbw := bufio.NewWriter(rw)\n\tdefer bw.Flush()\n\tif err := json.NewEncoder(bw).Encode(response); err != nil {\n\t\tlog.Print(err)\n\t\treturn\n\t}\n}\n\n// handleFree godoc\n// @summary\n// @tags free\n// @description This endpoint allows the users to free the Buffers from the\n// metric store. This endpoint offers the users to remove then systematically\n// and also allows then to prune the data under node, if they do not want to\n// remove the whole node.\n// @produce json\n// @param to query string false \"up to timestamp\"\n// @success 200 {string} string \"ok\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /free/ [post]\nfunc freeMetrics(rw http.ResponseWriter, r *http.Request) {\n\trawTo := r.URL.Query().Get(\"to\")\n\tif rawTo == \"\" {\n\t\thandleError(errors.New(\"'to' is a required query parameter\"), http.StatusBadRequest, rw)\n\t\treturn\n\t}\n\n\tto, err := strconv.ParseInt(rawTo, 10, 64)\n\tif err != nil {\n\t\thandleError(err, http.StatusInternalServerError, rw)\n\t\treturn\n\t}\n\n\tbodyDec := json.NewDecoder(r.Body)\n\tvar selectors [][]string\n\terr = bodyDec.Decode(&selectors)\n\tif err != nil {\n\t\thttp.Error(rw, err.Error(), http.StatusBadRequest)\n\t\treturn\n\t}\n\n\tms := metricstore.GetMemoryStore()\n\tn := 0\n\tfor _, sel := range selectors {\n\t\tbn, err := ms.Free(sel, to)\n\t\tif err != nil {\n\t\t\thandleError(err, http.StatusInternalServerError, rw)\n\t\t\treturn\n\t\t}\n\n\t\tn += bn\n\t}\n\n\trw.WriteHeader(http.StatusOK)\n\tfmt.Fprintf(rw, \"buffers freed: %d\\n\", n)\n}\n\n// handleWrite godoc\n// @summary Receive metrics in InfluxDB line-protocol\n// @tags write\n// @description Write data to the in-memory store in the InfluxDB line-protocol using [this format](https://github.com/ClusterCockpit/cc-specifications/blob/master/metrics/lineprotocol_alternative.md)\n\n// @accept plain\n// @produce json\n// @param cluster query string false \"If the lines in the body do not have a cluster tag, use this value instead.\"\n// @success 200 {string} string \"ok\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /write/ [post]\nfunc writeMetrics(rw http.ResponseWriter, r *http.Request) {\n\trw.Header().Add(\"Content-Type\", \"application/json\")\n\n\t// Extract the \"cluster\" query parameter without allocating a url.Values map.\n\tcluster := queryParam(r.URL.RawQuery, \"cluster\")\n\n\t// Stream directly from the request body instead of copying it into a\n\t// temporary buffer via io.ReadAll. The line-protocol decoder supports\n\t// io.Reader natively, so this avoids the largest heap allocation.\n\tms := metricstore.GetMemoryStore()\n\tdec := lineprotocol.NewDecoder(r.Body)\n\tif err := metricstore.DecodeLine(dec, ms, cluster); err != nil {\n\t\tcclog.Errorf(\"/api/write error: %s\", err.Error())\n\t\thandleError(err, http.StatusBadRequest, rw)\n\t\treturn\n\t}\n\trw.WriteHeader(http.StatusOK)\n}\n\n// handleDebug godoc\n// @summary Debug endpoint\n// @tags debug\n// @description This endpoint allows the users to print the content of\n// nodes/clusters/metrics to review the state of the data.\n// @produce json\n// @param selector query string false \"Selector\"\n// @success 200 {string} string \"Debug dump\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /debug/ [post]\nfunc debugMetrics(rw http.ResponseWriter, r *http.Request) {\n\traw := r.URL.Query().Get(\"selector\")\n\trw.Header().Add(\"Content-Type\", \"application/json\")\n\tselector := []string{}\n\tif len(raw) != 0 {\n\t\tselector = strings.Split(raw, \":\")\n\t}\n\n\tms := metricstore.GetMemoryStore()\n\tif err := ms.DebugDump(bufio.NewWriter(rw), selector); err != nil {\n\t\thandleError(err, http.StatusBadRequest, rw)\n\t\treturn\n\t}\n}\n\n// handleHealthCheck godoc\n// @summary HealthCheck endpoint\n// @tags healthcheck\n// @description This endpoint allows the users to check if a node is healthy\n// @produce json\n// @param selector query string false \"Selector\"\n// @success 200 {string} string \"Debug dump\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /healthcheck/ [get]\nfunc metricsHealth(rw http.ResponseWriter, r *http.Request) {\n\treq := metricstore.HealthCheckReq{}\n\n\tdec := json.NewDecoder(r.Body)\n\tdec.DisallowUnknownFields()\n\n\tif err := dec.Decode(&req); err != nil {\n\t\thandleError(fmt.Errorf(\"parsing request body failed: %w\", err),\n\t\t\thttp.StatusBadRequest, rw)\n\t\treturn\n\t}\n\n\trw.Header().Add(\"Content-Type\", \"application/json\")\n\n\tms := metricstore.GetMemoryStore()\n\tresults, err := ms.HealthCheck(req.Cluster, req.Nodes, req.MetricNames)\n\tif err != nil {\n\t\thandleError(err, http.StatusBadRequest, rw)\n\t\treturn\n\t}\n\n\trw.Header().Set(\"Content-Type\", \"application/json\")\n\tbw := bufio.NewWriter(rw)\n\tdefer bw.Flush()\n\tif err := json.NewEncoder(bw).Encode(results); err != nil {\n\t\tlog.Print(err)\n\t\treturn\n\t}\n}\n","structuredPatch":[{"oldStart":446,"oldLines":3,"newStart":446,"newLines":24,"lines":[" return"," }"," }","+","+// queryParam extracts a single query parameter value from a raw query string","+// without allocating a url.Values map.","+func queryParam(rawQuery, key string) string {","+ for rawQuery != \"\" {","+ var kv string","+ if i := strings.IndexByte(rawQuery, '&'); i >= 0 {","+ kv, rawQuery = rawQuery[:i], rawQuery[i+1:]","+ } else {","+ kv, rawQuery = rawQuery, \"\"","+ }","+ if eq := strings.IndexByte(kv, '='); eq >= 0 {","+ if kv[:eq] == key {","+ return kv[eq+1:]","+ }","+ } else if kv == key {","+ return \"\"","+ }","+ }","+ return \"\"","+}"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"cf63c1bf-c772-4e5f-ae10-c5dab446223b"}
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{"parentUuid":"f5c28144-a4e3-4649-9f38-d1088706b126","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5bdec311-7e4d-4543-91ea-fce0dbab2f32","version":"2.1.63","gitBranch":"dev","slug":"moonlit-dazzling-parasol","message":{"model":"claude-opus-4-6","id":"msg_01VD3DnUqPojWb7HhEcYs8Yp","type":"message","role":"assistant","content":[{"type":"text","text":"Build succeeds. Let me also run the tests:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":119,"cache_read_input_tokens":33786,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":119},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYfg8oyxZR6kZqnGk92g8","type":"assistant","uuid":"36d6a6c6-1adc-4608-949e-88f3874c0812","timestamp":"2026-03-03T06:30:00.815Z"}
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