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cc-metric-store/65/55467af065/0/full.jsonl
Jan Eitzinger 8a99aea294 Checkpoint: 6555467af065 
Entire-Session: 5b47442f-17e9-43f2-a0f6-626c196fae16
Entire-Strategy: manual-commit
Entire-Agent: Claude Code
Ephemeral-branch: entire/a116a1a-e3b0c4
2026-04-01 15:50:33 +02:00

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Synchronize options, cli flags with cc-backend\n \n Entire-Checkpoint: e24929f05ad3\n\n CLAUDE.md | 2 +-\n README.md | 20 ++++++-------\n cmd/cc-metric-store/main.go | 58 +++++++++++++++++++++++++++++-------\n configs/config.json | 4 +--\n go.mod | 66 ++++++++++++++++++++---------------------\n go.sum | 71 +++++++++++++++++++++++++++++++++++++++++++++\n 6 files changed, 163 insertions(+), 58 deletions(-)\ndiff --git a/go.mod b/go.mod\nindex 0c4e436..6584a8f 100644\n--- a/go.mod\n+++ b/go.mod\n@@ -3,8 +3,8 @@ module github.com/ClusterCockpit/cc-metric-store\n go 1.25.0\n \n require (\n-\tgithub.com/ClusterCockpit/cc-backend v1.5.0\n-\tgithub.com/ClusterCockpit/cc-lib/v2 v2.8.0\n+\tgithub.com/ClusterCockpit/cc-backend v1.5.3\n+\tgithub.com/ClusterCockpit/cc-lib/v2 v2.11.0\n \tgithub.com/ClusterCockpit/cc-line-protocol/v2 v2.4.0\n \tgithub.com/golang-jwt/jwt/v4 v4.5.2\n \tgithub.com/google/gops v0.3.29\n@@ -15,25 +15,25 @@ require (\n \n require (\n \tgithub.com/KyleBanks/depth v1.2.1 // indirect\n-\tgithub.com/andybalholm/brotli v1.2.0 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2 v1.41.3 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.6 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/config v1.32.11 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/credentials v1.19.11 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/configsources v1.4.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/ini v1.8.5 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/v4a v1.4.20 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.6 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.11 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/s3 v1.96.4 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/signin v1.0.7 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/sso v1.30.12 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.16 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/sts v1.41.8 // indirect\n+\tgithub.com/andybalholm/brotli v1.2.1 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2 v1.41.5 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.8 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/config v1.32.13 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/credentials v1.19.13 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/configsources v1.4.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/ini v1.8.6 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/v4a v1.4.22 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.7 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.13 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/s3 v1.98.0 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/signin v1.0.9 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/sso v1.30.14 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.18 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/sts v1.41.10 // indirect\n \tgithub.com/aws/smithy-go v1.24.2 // indirect\n \tgithub.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect\n \tgithub.com/fsnotify/fsnotify v1.9.0 // indirect\n@@ -48,28 +48,28 @@ require (\n \tgithub.com/go-openapi/swag/typeutils v0.25.5 // indirect\n \tgithub.com/go-openapi/swag/yamlutils v0.25.5 // indirect\n \tgithub.com/google/uuid v1.6.0 // indirect\n-\tgithub.com/klauspost/compress v1.18.4 // indirect\n-\tgithub.com/mattn/go-sqlite3 v1.14.34 // indirect\n-\tgithub.com/nats-io/nats.go v1.49.0 // indirect\n+\tgithub.com/klauspost/compress v1.18.5 // indirect\n+\tgithub.com/mattn/go-sqlite3 v1.14.38 // indirect\n+\tgithub.com/nats-io/nats.go v1.50.0 // indirect\n \tgithub.com/nats-io/nkeys v0.4.15 // indirect\n \tgithub.com/nats-io/nuid v1.0.1 // indirect\n \tgithub.com/parquet-go/bitpack v1.0.0 // indirect\n-\tgithub.com/parquet-go/jsonlite v1.4.0 // indirect\n-\tgithub.com/parquet-go/parquet-go v0.28.0 // indirect\n+\tgithub.com/parquet-go/jsonlite v1.5.0 // indirect\n+\tgithub.com/parquet-go/parquet-go v0.29.0 // indirect\n \tgithub.com/pierrec/lz4/v4 v4.1.26 // indirect\n \tgithub.com/russross/blackfriday/v2 v2.1.0 // indirect\n \tgithub.com/swaggo/files/v2 v2.0.2 // indirect\n \tgithub.com/twpayne/go-geom v1.6.1 // indirect\n \tgithub.com/urfave/cli/v2 v2.27.7 // indirect\n \tgithub.com/xrash/smetrics v0.0.0-20250705151800-55b8f293f342 // indirect\n-\tgo.yaml.in/yaml/v2 v2.4.3 // indirect\n+\tgo.yaml.in/yaml/v2 v2.4.4 // indirect\n \tgo.yaml.in/yaml/v3 v3.0.4 // indirect\n-\tgolang.org/x/crypto v0.48.0 // indirect\n-\tgolang.org/x/mod v0.33.0 // indirect\n-\tgolang.org/x/sync v0.19.0 // indirect\n-\tgolang.org/x/sys v0.41.0 // indirect\n-\tgolang.org/x/text v0.34.0 // indirect\n-\tgolang.org/x/tools v0.42.0 // indirect\n+\tgolang.org/x/crypto v0.49.0 // indirect\n+\tgolang.org/x/mod v0.34.0 // indirect\n+\tgolang.org/x/sync v0.20.0 // indirect\n+\tgolang.org/x/sys v0.42.0 // indirect\n+\tgolang.org/x/text v0.35.0 // indirect\n+\tgolang.org/x/tools v0.43.0 // indirect\n \tgoogle.golang.org/protobuf v1.36.11 // indirect\n \tgopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect\n \tsigs.k8s.io/yaml v1.6.0 // indirect","is_error":false}]},"uuid":"de6d7aeb-85a7-4f2f-8d56-428141880de3","timestamp":"2026-04-01T13:39:38.290Z","toolUseResult":{"stdout":"commit a116a1ab16df6e2007173bfe6d77376a73ce329a\nAuthor: Jan Eitzinger <jan@moebiusband.org>\nDate: Wed Apr 1 15:37:33 2026 +0200\n\n Update dependencies. Synchronize options, cli flags with cc-backend\n \n Entire-Checkpoint: e24929f05ad3\n\n CLAUDE.md | 2 +-\n README.md | 20 ++++++-------\n cmd/cc-metric-store/main.go | 58 +++++++++++++++++++++++++++++-------\n configs/config.json | 4 +--\n go.mod | 66 ++++++++++++++++++++---------------------\n go.sum | 71 +++++++++++++++++++++++++++++++++++++++++++++\n 6 files changed, 163 insertions(+), 58 deletions(-)\ndiff --git a/go.mod b/go.mod\nindex 0c4e436..6584a8f 100644\n--- a/go.mod\n+++ b/go.mod\n@@ -3,8 +3,8 @@ module github.com/ClusterCockpit/cc-metric-store\n go 1.25.0\n \n require (\n-\tgithub.com/ClusterCockpit/cc-backend v1.5.0\n-\tgithub.com/ClusterCockpit/cc-lib/v2 v2.8.0\n+\tgithub.com/ClusterCockpit/cc-backend v1.5.3\n+\tgithub.com/ClusterCockpit/cc-lib/v2 v2.11.0\n \tgithub.com/ClusterCockpit/cc-line-protocol/v2 v2.4.0\n \tgithub.com/golang-jwt/jwt/v4 v4.5.2\n \tgithub.com/google/gops v0.3.29\n@@ -15,25 +15,25 @@ require (\n \n require (\n \tgithub.com/KyleBanks/depth v1.2.1 // indirect\n-\tgithub.com/andybalholm/brotli v1.2.0 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2 v1.41.3 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.6 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/config v1.32.11 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/credentials v1.19.11 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/configsources v1.4.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/ini v1.8.5 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/internal/v4a v1.4.20 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.6 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.11 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.19 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/s3 v1.96.4 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/signin v1.0.7 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/sso v1.30.12 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.16 // indirect\n-\tgithub.com/aws/aws-sdk-go-v2/service/sts v1.41.8 // indirect\n+\tgithub.com/andybalholm/brotli v1.2.1 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2 v1.41.5 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.8 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/config v1.32.13 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/credentials v1.19.13 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/configsources v1.4.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/ini v1.8.6 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/internal/v4a v1.4.22 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.7 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/checksum v1.9.13 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.21 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/s3 v1.98.0 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/signin v1.0.9 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/sso v1.30.14 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.18 // indirect\n+\tgithub.com/aws/aws-sdk-go-v2/service/sts v1.41.10 // indirect\n \tgithub.com/aws/smithy-go v1.24.2 // indirect\n \tgithub.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect\n \tgithub.com/fsnotify/fsnotify v1.9.0 // indirect\n@@ -48,28 +48,28 @@ require (\n \tgithub.com/go-openapi/swag/typeutils v0.25.5 // indirect\n \tgithub.com/go-openapi/swag/yamlutils v0.25.5 // indirect\n \tgithub.com/google/uuid v1.6.0 // indirect\n-\tgithub.com/klauspost/compress v1.18.4 // indirect\n-\tgithub.com/mattn/go-sqlite3 v1.14.34 // indirect\n-\tgithub.com/nats-io/nats.go v1.49.0 // indirect\n+\tgithub.com/klauspost/compress v1.18.5 // indirect\n+\tgithub.com/mattn/go-sqlite3 v1.14.38 // indirect\n+\tgithub.com/nats-io/nats.go v1.50.0 // indirect\n \tgithub.com/nats-io/nkeys v0.4.15 // indirect\n \tgithub.com/nats-io/nuid v1.0.1 // indirect\n \tgithub.com/parquet-go/bitpack v1.0.0 // indirect\n-\tgithub.com/parquet-go/jsonlite v1.4.0 // indirect\n-\tgithub.com/parquet-go/parquet-go v0.28.0 // indirect\n+\tgithub.com/parquet-go/jsonlite v1.5.0 // indirect\n+\tgithub.com/parquet-go/parquet-go v0.29.0 // indirect\n \tgithub.com/pierrec/lz4/v4 v4.1.26 // indirect\n \tgithub.com/russross/blackfriday/v2 v2.1.0 // indirect\n \tgithub.com/swaggo/files/v2 v2.0.2 // indirect\n \tgithub.com/twpayne/go-geom v1.6.1 // indirect\n \tgithub.com/urfave/cli/v2 v2.27.7 // indirect\n \tgithub.com/xrash/smetrics v0.0.0-20250705151800-55b8f293f342 // indirect\n-\tgo.yaml.in/yaml/v2 v2.4.3 // indirect\n+\tgo.yaml.in/yaml/v2 v2.4.4 // indirect\n \tgo.yaml.in/yaml/v3 v3.0.4 // indirect\n-\tgolang.org/x/crypto v0.48.0 // indirect\n-\tgolang.org/x/mod v0.33.0 // indirect\n-\tgolang.org/x/sync v0.19.0 // indirect\n-\tgolang.org/x/sys v0.41.0 // indirect\n-\tgolang.org/x/text v0.34.0 // indirect\n-\tgolang.org/x/tools v0.42.0 // indirect\n+\tgolang.org/x/crypto v0.49.0 // indirect\n+\tgolang.org/x/mod v0.34.0 // indirect\n+\tgolang.org/x/sync v0.20.0 // indirect\n+\tgolang.org/x/sys v0.42.0 // indirect\n+\tgolang.org/x/text v0.35.0 // indirect\n+\tgolang.org/x/tools v0.43.0 // indirect\n \tgoogle.golang.org/protobuf v1.36.11 // indirect\n \tgopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect\n \tsigs.k8s.io/yaml v1.6.0 // indirect","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"8bc10e4c-28c7-4537-a733-8d6ccdf440c5","userType":"external","entrypoint":"cli","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5b47442f-17e9-43f2-a0f6-626c196fae16","version":"2.1.81","gitBranch":"dev","slug":"melodic-dancing-adleman"}
{"parentUuid":"de6d7aeb-85a7-4f2f-8d56-428141880de3","isSidechain":false,"message":{"model":"claude-sonnet-4-6","id":"msg_01HohVJsyd7Z1rnGBRgFYDEM","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01TTFWDzZydrM2YmtaWTduNJ","name":"Bash","input":{"command":"git log bdf65b1..HEAD --oneline --all","description":"Commits since last release"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1247,"cache_read_input_tokens":16993,"output_tokens":209,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":1247,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZd9MSFDaAQvewa2kFTtq","type":"assistant","uuid":"00ee65cd-5de7-46db-84c7-23ec756c4c23","timestamp":"2026-04-01T13:39:38.813Z","userType":"external","entrypoint":"cli","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5b47442f-17e9-43f2-a0f6-626c196fae16","version":"2.1.81","gitBranch":"dev","slug":"melodic-dancing-adleman"}
{"parentUuid":"00ee65cd-5de7-46db-84c7-23ec756c4c23","isSidechain":false,"promptId":"ec2940ed-2e8a-4695-acc9-46d09a67416f","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01TTFWDzZydrM2YmtaWTduNJ","type":"tool_result","content":"254affa Merge remote session logs\nd38bf70 Checkpoint: e24929f05ad3\na116a1a Update dependencies. Synchronize options, cli flags with cc-backend\n3f01e7b Bump github.com/ClusterCockpit/cc-lib/v2 from 2.8.0 to 2.11.0\n5708dc2 Bump github.com/ClusterCockpit/cc-backend from 1.5.0 to 1.5.2\nf00277f Merge pull request #60 from ClusterCockpit/dev\n41fb959 Cleanup README\nb6c04e3 Merge pull request #59 from ClusterCockpit/dev\n3e0805b Fix golreaser config\n2eb2227 Checkpoint: 37abb99fe6a7\n6ce91cb Checkpoint: 37abb99fe6a7\ne6930b4 Merge remote session logs\n04cbc95 Checkpoint: dd6b5959d7c6\n02c6ebc Checkpoint: 1f0df6df7655\nea69b43 Initialize metadata branch\ne4cbfd5 Initialize metadata branch\n99c5eae Bump github.com/ClusterCockpit/cc-lib/v2 from 2.2.1 to 2.7.0\nc9602eb Bump github.com/ClusterCockpit/cc-backend\n7404ea2 Bump github.com/nats-io/nats.go from 1.47.0 to 1.48.0\nda271ba Bump github.com/linkedin/goavro/v2 from 2.13.1 to 2.14.1\nf48e178 Bump github.com/swaggo/swag from 1.16.3 to 1.16.6\n4d27e38 go mod tidy\n2691254 Bump github.com/golang-jwt/jwt/v4 from 4.5.0 to 4.5.2\nace6046 Merge branch 'main' into devel\nc28fee4 Merge branch 'devel' into hotfix\n1941e59 Switch to cc-lib\n26335a2 Remove WithUnit query option\n3f3a150 Return unit in API requests per default\n997dd8f Update test case to check the metric directly\neb5b22e Update archive_test.go\n04cf555 Import unit test\n2d77dae Add basic test case for reading in checkpoint files\n5e5586f Add unit to buffers\ne71e1b1 Minor fix to Makefile\n7c891e1 Add request flag WithUnit and return the metric unit if requested\n051cba4 Add unit for archive reader/writer\n89acbe8 Accept unit tags for incoming metrics and store it in the buffer.","is_error":false}]},"uuid":"65878ce9-6e82-4c7f-8137-6d5bd469e099","timestamp":"2026-04-01T13:39:38.861Z","toolUseResult":{"stdout":"254affa Merge remote session logs\nd38bf70 Checkpoint: e24929f05ad3\na116a1a Update dependencies. Synchronize options, cli flags with cc-backend\n3f01e7b Bump github.com/ClusterCockpit/cc-lib/v2 from 2.8.0 to 2.11.0\n5708dc2 Bump github.com/ClusterCockpit/cc-backend from 1.5.0 to 1.5.2\nf00277f Merge pull request #60 from ClusterCockpit/dev\n41fb959 Cleanup README\nb6c04e3 Merge pull request #59 from ClusterCockpit/dev\n3e0805b Fix golreaser config\n2eb2227 Checkpoint: 37abb99fe6a7\n6ce91cb Checkpoint: 37abb99fe6a7\ne6930b4 Merge remote session logs\n04cbc95 Checkpoint: dd6b5959d7c6\n02c6ebc Checkpoint: 1f0df6df7655\nea69b43 Initialize metadata branch\ne4cbfd5 Initialize metadata branch\n99c5eae Bump github.com/ClusterCockpit/cc-lib/v2 from 2.2.1 to 2.7.0\nc9602eb Bump github.com/ClusterCockpit/cc-backend\n7404ea2 Bump github.com/nats-io/nats.go from 1.47.0 to 1.48.0\nda271ba Bump github.com/linkedin/goavro/v2 from 2.13.1 to 2.14.1\nf48e178 Bump github.com/swaggo/swag from 1.16.3 to 1.16.6\n4d27e38 go mod tidy\n2691254 Bump github.com/golang-jwt/jwt/v4 from 4.5.0 to 4.5.2\nace6046 Merge branch 'main' into devel\nc28fee4 Merge branch 'devel' into hotfix\n1941e59 Switch to cc-lib\n26335a2 Remove WithUnit query option\n3f3a150 Return unit in API requests per default\n997dd8f Update test case to check the metric directly\neb5b22e Update archive_test.go\n04cf555 Import unit test\n2d77dae Add basic test case for reading in checkpoint files\n5e5586f Add unit to buffers\ne71e1b1 Minor fix to Makefile\n7c891e1 Add request flag WithUnit and return the metric unit if requested\n051cba4 Add unit for archive reader/writer\n89acbe8 Accept unit tags for incoming metrics and store it in the buffer.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"00ee65cd-5de7-46db-84c7-23ec756c4c23","userType":"external","entrypoint":"cli","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5b47442f-17e9-43f2-a0f6-626c196fae16","version":"2.1.81","gitBranch":"dev","slug":"melodic-dancing-adleman"}
{"parentUuid":"65878ce9-6e82-4c7f-8137-6d5bd469e099","isSidechain":false,"message":{"model":"claude-sonnet-4-6","id":"msg_01SoDunxFmyM9pGEbNx6RMeq","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_019vuFfruRW8tV3F36swA4pn","name":"Bash","input":{"command":"git show a116a1a -- cmd/cc-metric-store/main.go | head -100","description":"Show changes to main.go in latest commit"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":3652,"cache_read_input_tokens":18240,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":3652},"output_tokens":38,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZd9MkjDVvzfRW6ysJc7x","type":"assistant","uuid":"ac2161e1-ba6d-49e3-8156-8e96fdf31db9","timestamp":"2026-04-01T13:39:42.667Z","userType":"external","entrypoint":"cli","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5b47442f-17e9-43f2-a0f6-626c196fae16","version":"2.1.81","gitBranch":"dev","slug":"melodic-dancing-adleman"}
{"parentUuid":"ac2161e1-ba6d-49e3-8156-8e96fdf31db9","isSidechain":false,"promptId":"ec2940ed-2e8a-4695-acc9-46d09a67416f","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_019vuFfruRW8tV3F36swA4pn","type":"tool_result","content":"commit a116a1ab16df6e2007173bfe6d77376a73ce329a\nAuthor: Jan Eitzinger <jan@moebiusband.org>\nDate: Wed Apr 1 15:37:33 2026 +0200\n\n Update dependencies. Synchronize options, cli flags with cc-backend\n \n Entire-Checkpoint: e24929f05ad3\n\ndiff --git a/cmd/cc-metric-store/main.go b/cmd/cc-metric-store/main.go\nindex b69d78e..1649446 100644\n--- a/cmd/cc-metric-store/main.go\n+++ b/cmd/cc-metric-store/main.go\n@@ -7,6 +7,7 @@ package main\n \n import (\n \t\"context\"\n+\t\"encoding/json\"\n \t\"flag\"\n \t\"fmt\"\n \t\"os\"\n@@ -14,6 +15,7 @@ import (\n \t\"runtime/debug\"\n \t\"sync\"\n \t\"syscall\"\n+\t\"time\"\n \n \t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n \tccconf \"github.com/ClusterCockpit/cc-lib/v2/ccConfig\"\n@@ -36,8 +38,8 @@ var (\n )\n \n var (\n-\tflagGops, flagVersion, flagDev, flagLogDateTime bool\n-\tflagConfigFile, flagLogLevel string\n+\tflagGops, flagVersion, flagDev, flagLogDateTime, flagCleanupCheckpoints bool\n+\tflagConfigFile, flagLogLevel string\n )\n \n func printVersion() {\n@@ -60,13 +62,14 @@ func runServer(ctx context.Context) error {\n \t\treturn fmt.Errorf(\"missing metricstore configuration\")\n \t}\n \n-\tmetricstore.Init(mscfg, config.GetMetrics(), &wg)\n-\n-\t// Set GC percent if not configured\n+\t// Set GC percent before loading checkpoints so the GC baseline is established\n+\t// with a low target from the start of the largest allocation event.\n \tif os.Getenv(envGOGC) == \"\" {\n \t\tdebug.SetGCPercent(15)\n \t}\n \n+\tmetricstore.Init(mscfg, config.GetMetrics(), &wg)\n+\n \tif config.Keys.BackendURL != \"\" {\n \t\tms := metricstore.GetMemoryStore()\n \t\tms.SetNodeProvider(api.NewBackendNodeProvider(config.Keys.BackendURL))\n@@ -127,6 +130,7 @@ func run() error {\n \tflag.BoolVar(&flagDev, \"dev\", false, \"Enable development component: Swagger UI\")\n \tflag.BoolVar(&flagVersion, \"version\", false, \"Show version information and exit\")\n \tflag.BoolVar(&flagLogDateTime, \"logdate\", false, \"Set this flag to add date and time to log messages\")\n+\tflag.BoolVar(&flagCleanupCheckpoints, \"cleanup-checkpoints\", false, \"Clean up old checkpoint files (delete or archive) based on retention settings, then exit\")\n \tflag.StringVar(&flagConfigFile, \"config\", \"./config.json\", \"Specify alternative path to `config.json`\")\n \tflag.StringVar(&flagLogLevel, \"loglevel\", \"warn\", \"Sets the logging level: `[debug, info, warn (default), err, crit]`\")\n \tflag.Parse()\n@@ -138,12 +142,6 @@ func run() error {\n \n \tcclog.Init(flagLogLevel, flagLogDateTime)\n \n-\tif flagGops || config.Keys.Debug.EnableGops {\n-\t\tif err := agent.Listen(agent.Options{}); err != nil {\n-\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n-\t\t}\n-\t}\n-\n \tccconf.Init(flagConfigFile)\n \n \tcfg := ccconf.GetPackageConfig(\"main\")\n@@ -153,6 +151,44 @@ func run() error {\n \n \tconfig.Init(cfg)\n \n+\tif flagGops || config.Keys.Debug.EnableGops {\n+\t\tif err := agent.Listen(agent.Options{}); err != nil {\n+\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n+\t\t}\n+\t}\n+\n+\tif flagCleanupCheckpoints {\n+\t\tmscfg := ccconf.GetPackageConfig(\"metric-store\")\n+\t\tif mscfg == nil {\n+\t\t\treturn fmt.Errorf(\"metric-store configuration required for checkpoint cleanup\")\n+\t\t}\n+\t\tif err := json.Unmarshal(mscfg, &metricstore.Keys); err != nil {\n+\t\t\treturn fmt.Errorf(\"decoding metric-store config: %w\", err)\n+\t\t}\n+\t\td, err := time.ParseDuration(metricstore.Keys.RetentionInMemory)\n+\t\tif err != nil {\n+\t\t\treturn fmt.Errorf(\"parsing retention-in-memory: %w\", err)\n+\t\t}","is_error":false}]},"uuid":"f4d5a8ee-13d7-4252-a90b-288cf7e65cae","timestamp":"2026-04-01T13:39:42.729Z","toolUseResult":{"stdout":"commit a116a1ab16df6e2007173bfe6d77376a73ce329a\nAuthor: Jan Eitzinger <jan@moebiusband.org>\nDate: Wed Apr 1 15:37:33 2026 +0200\n\n Update dependencies. Synchronize options, cli flags with cc-backend\n \n Entire-Checkpoint: e24929f05ad3\n\ndiff --git a/cmd/cc-metric-store/main.go b/cmd/cc-metric-store/main.go\nindex b69d78e..1649446 100644\n--- a/cmd/cc-metric-store/main.go\n+++ b/cmd/cc-metric-store/main.go\n@@ -7,6 +7,7 @@ package main\n \n import (\n \t\"context\"\n+\t\"encoding/json\"\n \t\"flag\"\n \t\"fmt\"\n \t\"os\"\n@@ -14,6 +15,7 @@ import (\n \t\"runtime/debug\"\n \t\"sync\"\n \t\"syscall\"\n+\t\"time\"\n \n \t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n \tccconf \"github.com/ClusterCockpit/cc-lib/v2/ccConfig\"\n@@ -36,8 +38,8 @@ var (\n )\n \n var (\n-\tflagGops, flagVersion, flagDev, flagLogDateTime bool\n-\tflagConfigFile, flagLogLevel string\n+\tflagGops, flagVersion, flagDev, flagLogDateTime, flagCleanupCheckpoints bool\n+\tflagConfigFile, flagLogLevel string\n )\n \n func printVersion() {\n@@ -60,13 +62,14 @@ func runServer(ctx context.Context) error {\n \t\treturn fmt.Errorf(\"missing metricstore configuration\")\n \t}\n \n-\tmetricstore.Init(mscfg, config.GetMetrics(), &wg)\n-\n-\t// Set GC percent if not configured\n+\t// Set GC percent before loading checkpoints so the GC baseline is established\n+\t// with a low target from the start of the largest allocation event.\n \tif os.Getenv(envGOGC) == \"\" {\n \t\tdebug.SetGCPercent(15)\n \t}\n \n+\tmetricstore.Init(mscfg, config.GetMetrics(), &wg)\n+\n \tif config.Keys.BackendURL != \"\" {\n \t\tms := metricstore.GetMemoryStore()\n \t\tms.SetNodeProvider(api.NewBackendNodeProvider(config.Keys.BackendURL))\n@@ -127,6 +130,7 @@ func run() error {\n \tflag.BoolVar(&flagDev, \"dev\", false, \"Enable development component: Swagger UI\")\n \tflag.BoolVar(&flagVersion, \"version\", false, \"Show version information and exit\")\n \tflag.BoolVar(&flagLogDateTime, \"logdate\", false, \"Set this flag to add date and time to log messages\")\n+\tflag.BoolVar(&flagCleanupCheckpoints, \"cleanup-checkpoints\", false, \"Clean up old checkpoint files (delete or archive) based on retention settings, then exit\")\n \tflag.StringVar(&flagConfigFile, \"config\", \"./config.json\", \"Specify alternative path to `config.json`\")\n \tflag.StringVar(&flagLogLevel, \"loglevel\", \"warn\", \"Sets the logging level: `[debug, info, warn (default), err, crit]`\")\n \tflag.Parse()\n@@ -138,12 +142,6 @@ func run() error {\n \n \tcclog.Init(flagLogLevel, flagLogDateTime)\n \n-\tif flagGops || config.Keys.Debug.EnableGops {\n-\t\tif err := agent.Listen(agent.Options{}); err != nil {\n-\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n-\t\t}\n-\t}\n-\n \tccconf.Init(flagConfigFile)\n \n \tcfg := ccconf.GetPackageConfig(\"main\")\n@@ -153,6 +151,44 @@ func run() error {\n \n \tconfig.Init(cfg)\n \n+\tif flagGops || config.Keys.Debug.EnableGops {\n+\t\tif err := agent.Listen(agent.Options{}); err != nil {\n+\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n+\t\t}\n+\t}\n+\n+\tif flagCleanupCheckpoints {\n+\t\tmscfg := ccconf.GetPackageConfig(\"metric-store\")\n+\t\tif mscfg == nil {\n+\t\t\treturn fmt.Errorf(\"metric-store configuration required for checkpoint cleanup\")\n+\t\t}\n+\t\tif err := json.Unmarshal(mscfg, &metricstore.Keys); err != nil {\n+\t\t\treturn fmt.Errorf(\"decoding metric-store config: %w\", err)\n+\t\t}\n+\t\td, err := time.ParseDuration(metricstore.Keys.RetentionInMemory)\n+\t\tif err != nil {\n+\t\t\treturn fmt.Errorf(\"parsing retention-in-memory: %w\", err)\n+\t\t}","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"ac2161e1-ba6d-49e3-8156-8e96fdf31db9","userType":"external","entrypoint":"cli","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5b47442f-17e9-43f2-a0f6-626c196fae16","version":"2.1.81","gitBranch":"dev","slug":"melodic-dancing-adleman"}
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{"parentUuid":"1258b78a-5d2f-4803-b59e-00114a0f58a3","isSidechain":false,"promptId":"ec2940ed-2e8a-4695-acc9-46d09a67416f","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_011fqZTcqXrwr8t7EXLD57Fn","type":"tool_result","content":" \tflag.StringVar(&flagLogLevel, \"loglevel\", \"warn\", \"Sets the logging level: `[debug, info, warn (default), err, crit]`\")\n \tflag.Parse()\n@@ -138,12 +142,6 @@ func run() error {\n \n \tcclog.Init(flagLogLevel, flagLogDateTime)\n \n-\tif flagGops || config.Keys.Debug.EnableGops {\n-\t\tif err := agent.Listen(agent.Options{}); err != nil {\n-\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n-\t\t}\n-\t}\n-\n \tccconf.Init(flagConfigFile)\n \n \tcfg := ccconf.GetPackageConfig(\"main\")\n@@ -153,6 +151,44 @@ func run() error {\n \n \tconfig.Init(cfg)\n \n+\tif flagGops || config.Keys.Debug.EnableGops {\n+\t\tif err := agent.Listen(agent.Options{}); err != nil {\n+\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n+\t\t}\n+\t}\n+\n+\tif flagCleanupCheckpoints {\n+\t\tmscfg := ccconf.GetPackageConfig(\"metric-store\")\n+\t\tif mscfg == nil {\n+\t\t\treturn fmt.Errorf(\"metric-store configuration required for checkpoint cleanup\")\n+\t\t}\n+\t\tif err := json.Unmarshal(mscfg, &metricstore.Keys); err != nil {\n+\t\t\treturn fmt.Errorf(\"decoding metric-store config: %w\", err)\n+\t\t}\n+\t\td, err := time.ParseDuration(metricstore.Keys.RetentionInMemory)\n+\t\tif err != nil {\n+\t\t\treturn fmt.Errorf(\"parsing retention-in-memory: %w\", err)\n+\t\t}\n+\t\tfrom := time.Now().Add(-d)\n+\t\tdeleteMode := metricstore.Keys.Cleanup == nil || metricstore.Keys.Cleanup.Mode != \"archive\"\n+\t\tcleanupDir := \"\"\n+\t\tif !deleteMode {\n+\t\t\tcleanupDir = metricstore.Keys.Cleanup.RootDir\n+\t\t}\n+\t\tcclog.Infof(\"Cleaning up checkpoints older than %s...\", from.Format(time.RFC3339))\n+\t\tn, err := metricstore.CleanupCheckpoints(\n+\t\t\tmetricstore.Keys.Checkpoints.RootDir, cleanupDir, from.Unix(), deleteMode)\n+\t\tif err != nil {\n+\t\t\treturn fmt.Errorf(\"checkpoint cleanup: %w\", err)\n+\t\t}\n+\t\tif deleteMode {\n+\t\t\tcclog.Printf(\"Cleanup done: %d checkpoint files deleted.\", n)\n+\t\t} else {\n+\t\t\tcclog.Printf(\"Cleanup done: %d checkpoint files archived to parquet.\", n)\n+\t\t}\n+\t\treturn nil\n+\t}\n+\n \tnatsConfig := ccconf.GetPackageConfig(\"nats\")\n \tif err := nats.Init(natsConfig); err != nil {\n \t\tcclog.Warnf(\"initializing (optional) nats client: %s\", err.Error())","is_error":false}]},"uuid":"9d5df38a-524e-47cf-8170-037501a3bc40","timestamp":"2026-04-01T13:40:45.565Z","toolUseResult":{"stdout":" \tflag.StringVar(&flagLogLevel, \"loglevel\", \"warn\", \"Sets the logging level: `[debug, info, warn (default), err, crit]`\")\n \tflag.Parse()\n@@ -138,12 +142,6 @@ func run() error {\n \n \tcclog.Init(flagLogLevel, flagLogDateTime)\n \n-\tif flagGops || config.Keys.Debug.EnableGops {\n-\t\tif err := agent.Listen(agent.Options{}); err != nil {\n-\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n-\t\t}\n-\t}\n-\n \tccconf.Init(flagConfigFile)\n \n \tcfg := ccconf.GetPackageConfig(\"main\")\n@@ -153,6 +151,44 @@ func run() error {\n \n \tconfig.Init(cfg)\n \n+\tif flagGops || config.Keys.Debug.EnableGops {\n+\t\tif err := agent.Listen(agent.Options{}); err != nil {\n+\t\t\treturn fmt.Errorf(\"starting gops agent: %w\", err)\n+\t\t}\n+\t}\n+\n+\tif flagCleanupCheckpoints {\n+\t\tmscfg := ccconf.GetPackageConfig(\"metric-store\")\n+\t\tif mscfg == nil {\n+\t\t\treturn fmt.Errorf(\"metric-store configuration required for checkpoint cleanup\")\n+\t\t}\n+\t\tif err := json.Unmarshal(mscfg, &metricstore.Keys); err != nil {\n+\t\t\treturn fmt.Errorf(\"decoding metric-store config: %w\", err)\n+\t\t}\n+\t\td, err := time.ParseDuration(metricstore.Keys.RetentionInMemory)\n+\t\tif err != nil {\n+\t\t\treturn fmt.Errorf(\"parsing retention-in-memory: %w\", err)\n+\t\t}\n+\t\tfrom := time.Now().Add(-d)\n+\t\tdeleteMode := metricstore.Keys.Cleanup == nil || metricstore.Keys.Cleanup.Mode != \"archive\"\n+\t\tcleanupDir := \"\"\n+\t\tif !deleteMode {\n+\t\t\tcleanupDir = metricstore.Keys.Cleanup.RootDir\n+\t\t}\n+\t\tcclog.Infof(\"Cleaning up checkpoints older than %s...\", from.Format(time.RFC3339))\n+\t\tn, err := metricstore.CleanupCheckpoints(\n+\t\t\tmetricstore.Keys.Checkpoints.RootDir, cleanupDir, from.Unix(), deleteMode)\n+\t\tif err != nil {\n+\t\t\treturn fmt.Errorf(\"checkpoint cleanup: %w\", err)\n+\t\t}\n+\t\tif deleteMode {\n+\t\t\tcclog.Printf(\"Cleanup done: %d checkpoint files deleted.\", n)\n+\t\t} else {\n+\t\t\tcclog.Printf(\"Cleanup done: %d checkpoint files archived to parquet.\", n)\n+\t\t}\n+\t\treturn nil\n+\t}\n+\n \tnatsConfig := ccconf.GetPackageConfig(\"nats\")\n \tif err := nats.Init(natsConfig); err != nil {\n \t\tcclog.Warnf(\"initializing (optional) nats client: %s\", err.Error())","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"1258b78a-5d2f-4803-b59e-00114a0f58a3","userType":"external","entrypoint":"cli","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5b47442f-17e9-43f2-a0f6-626c196fae16","version":"2.1.81","gitBranch":"dev","slug":"melodic-dancing-adleman"}
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Do not drain WAL buffers on shutdown\nb1884fda Prepare bug fix release 1.5.3\nc267501a Reduve noise in tagger logging\na550344f Increase server shutdown timeout\nbd7125a5 review doubleranged filters, fix and improve valeu selection\n93a9d732 fix: Improve shutdown time\n6f7dda53 Cleanup\n0325d9e8 fix: Increase throughput for WAL writers\n3d94b0bf Merge branch 'master' into hotfix\nd5ea2b4c change: query node states explicitly in node view\n45f329e5 feat: Add command line switch to trigger manual metricstore checkpoint cleanup\n100dd7da Merge pull request #533 from ClusterCockpit/hotfix\n192c94a7 fix: Prevent interruption of body lineprotocol parsing on locks\ne41d1251 fix: Continue on error\n586c9020 Restructure metricstore cleanup archiving to stay withinh 32k parquet-go limit\n01ec70ba Iterate over subCluster MetricConfig directly so that removed metrics are not included\n97330ce5 Merge pull request #532 from ClusterCockpit/hotfix\nfb176c5a Remove static linkage for helper tools\nd4ee9371 Merge pull request #531 from ClusterCockpit/hotfix\n999d93ef Fix goreleaser config. 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Include calling function in log.\n6855d62b Make log in scanRow more descriptive. No log for common no rows error\n7f3eb443 Include calling function in error message\nbab6eb4c Convert Warn message on missing metrics to Debug level\n09d0ba71 Provide idential nodestate functionality in NATS API\ndf93dbed Add busyTimeout config setting\ne4f3fa9b Wrap SyncJobs in transaction\n51517f80 Reduce insert pressure in db. Increase sqlite timeout value\n0aad8f01 Upgrade cc-lib\n8751ae02 Merge pull request #520 from ClusterCockpit/hotfix\n973ca87b Extend known issues in ReleaseNotes\n128c0988 Merge pull request #519 from ClusterCockpit/hotfix\n045311ee Prepare release 1.5.1\ne38396a0 Upgrade dependencies. 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The storage engine is now provided by the\n [`cc-backend`](https://github.com/ClusterCockpit/cc-backend) package\n (`cc-backend/pkg/metricstore`). This repository is now the HTTP API wrapper\n only.\n- The configuration schema has changed. Refer to `configs/config.json` for the\n updated structure.\n\n## Notable changes\n\n- **Storage engine extracted to `cc-backend` library**: The entire in-memory\n time-series storage engine was moved to `cc-backend/pkg/metricstore`. This\n reduces duplication in the ClusterCockpit suite and enables shared maintenance\n of the storage layer.\n- **HealthCheck API endpoint**: New `GET /api/healthcheck/` endpoint reports the\n health status of cluster nodes.\n- **Dynamic memory management**: Memory limits can now be adjusted at runtime via\n a callback from the `cc-backend` library.\n- **Configuration schema validation**: The config and metric config JSON schemas\n have been updated and are now validated against the structs they describe.\n- **Startup refactored**: Application startup has been split into `cli.go` and\n `server.go` for clearer separation of concerns.\n- **`go fix` applied**: Codebase updated to current Go idioms.\n- **Dependency upgrades**: `nats.go` bumped from 1.36.0 to 1.47.0;\n `cc-lib` updated to v2.8.0; `cc-backend` updated to v1.5.0; various other\n module upgrades.","new_string":"# `cc-metric-store` version 1.5.3\n\nThis is a bugfix release of `cc-metric-store`, the metric timeseries cache\nimplementation of ClusterCockpit. Since the storage engine is now part of\n`cc-backend` we will follow the version number of `cc-backend`.\nFor release specific notes visit the [ClusterCockpit Documentation](https://clusterockpit.org/docs/release/).\n\n## Notable changes\n\n- **`-cleanup-checkpoints` CLI flag**: New flag triggers checkpoint cleanup\n (delete or archive to Parquet) based on the configured retention and cleanup\n settings, then exits. Useful for one-off maintenance without starting the full\n server.\n- **GC initialised before checkpoint load**: `GOGC=15` is now set before\n `metricstore.Init` so the garbage-collector baseline is established prior to\n the largest allocation event (loading checkpoints from disk), reducing\n unnecessary heap growth at startup.\n- **Dependency upgrades**: `cc-backend` updated from v1.5.0 to v1.5.3;\n `cc-lib` updated from v2.8.0 to v2.11.0; `nats.go` bumped from v1.49.0 to\n v1.50.0; `parquet-go` bumped from v0.28.0 to v0.29.0; various other module\n upgrades.\n\n## Metricstore package fixes (cc-backend v1.5.0 → v1.5.3)\n\nThe following fixes landed in the upstream `cc-backend/pkg/metricstore` package\nand are included via the dependency upgrade:\n\n- **WAL correctness**: Fixed WAL rotation being skipped for all nodes due to a\n non-blocking send on a too-small channel; fixed unbound growth of WAL files\n when a checkpointing error occurs; fixed bugs in the WAL journal pipeline.\n- **WAL throughput**: Sharded the WAL consumer for higher write throughput; added\n buffered I/O to WAL writes.\n- **Checkpoint stability**: Paused WAL writes during binary checkpoint creation\n to prevent message drops; restructured cleanup archiving to stay within the\n 32 k row limit of `parquet-go`.\n- **Memory**: Fixed a memory explosion caused by broken emergency-free and batch\n aborts; reduced memory usage in the Parquet checkpoint archiver; fixed\n preventing memory spikes in the Parquet writer during the move/archive policy.\n- **NATS**: Fixed blocking `ReceiveNats` call; fixed NATS contention under load.\n- **Shutdown**: Increased shutdown timeouts; added WAL flush interval tuning;\n added shutdown timing logs.\n- **Observability**: Added verbose logs for `DataDoesNotAlign` errors; reduced\n noise by demoting a missing-metric warning to debug level.\n- **Configuration**: Restored `checkpointInterval` as an optional config key.\n\n## Breaking changes (from v1.4.x)\n\n- The internal `memorystore`, `avro`, `resampler`, and `util` packages have been\n removed. The storage engine is now provided by the\n [`cc-backend`](https://github.com/ClusterCockpit/cc-backend) package\n (`cc-backend/pkg/metricstore`). This repository is now the HTTP API wrapper\n only.\n- The configuration schema has changed. Refer to `configs/config.json` for the\n updated structure."},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":3098,"cache_read_input_tokens":24547,"output_tokens":1982,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":3098,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZd9yQqdpLRWQCr441fur","type":"assistant","uuid":"54e91b7f-f354-4b01-b0da-f0767c15bdc1","timestamp":"2026-04-01T13:48:20.115Z","userType":"external","entrypoint":"cli","cwd":"/Users/jan/prg/ClusterCockpit/cc-metric-store","sessionId":"5b47442f-17e9-43f2-a0f6-626c196fae16","version":"2.1.81","gitBranch":"dev","slug":"melodic-dancing-adleman"}
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Since the storage engine is now part of\n`cc-backend` we will follow the version number of `cc-backend`.\nFor release specific notes visit the [ClusterCockpit Documentation](https://clusterockpit.org/docs/release/).\n\n## Breaking changes\n\n- The internal `memorystore`, `avro`, `resampler`, and `util` packages have been\n removed. The storage engine is now provided by the\n [`cc-backend`](https://github.com/ClusterCockpit/cc-backend) package\n (`cc-backend/pkg/metricstore`). This repository is now the HTTP API wrapper\n only.\n- The configuration schema has changed. Refer to `configs/config.json` for the\n updated structure.\n\n## Notable changes\n\n- **Storage engine extracted to `cc-backend` library**: The entire in-memory\n time-series storage engine was moved to `cc-backend/pkg/metricstore`. This\n reduces duplication in the ClusterCockpit suite and enables shared maintenance\n of the storage layer.\n- **HealthCheck API endpoint**: New `GET /api/healthcheck/` endpoint reports the\n health status of cluster nodes.\n- **Dynamic memory management**: Memory limits can now be adjusted at runtime via\n a callback from the `cc-backend` library.\n- **Configuration schema validation**: The config and metric config JSON schemas\n have been updated and are now validated against the structs they describe.\n- **Startup refactored**: Application startup has been split into `cli.go` and\n `server.go` for clearer separation of concerns.\n- **`go fix` applied**: Codebase updated to current Go idioms.\n- **Dependency upgrades**: `nats.go` bumped from 1.36.0 to 1.47.0;\n `cc-lib` updated to v2.8.0; `cc-backend` updated to v1.5.0; various other\n module upgrades.","newString":"# `cc-metric-store` version 1.5.3\n\nThis is a bugfix release of `cc-metric-store`, the metric timeseries cache\nimplementation of ClusterCockpit. Since the storage engine is now part of\n`cc-backend` we will follow the version number of `cc-backend`.\nFor release specific notes visit the [ClusterCockpit Documentation](https://clusterockpit.org/docs/release/).\n\n## Notable changes\n\n- **`-cleanup-checkpoints` CLI flag**: New flag triggers checkpoint cleanup\n (delete or archive to Parquet) based on the configured retention and cleanup\n settings, then exits. Useful for one-off maintenance without starting the full\n server.\n- **GC initialised before checkpoint load**: `GOGC=15` is now set before\n `metricstore.Init` so the garbage-collector baseline is established prior to\n the largest allocation event (loading checkpoints from disk), reducing\n unnecessary heap growth at startup.\n- **Dependency upgrades**: `cc-backend` updated from v1.5.0 to v1.5.3;\n `cc-lib` updated from v2.8.0 to v2.11.0; `nats.go` bumped from v1.49.0 to\n v1.50.0; `parquet-go` bumped from v0.28.0 to v0.29.0; various other module\n upgrades.\n\n## Metricstore package fixes (cc-backend v1.5.0 → v1.5.3)\n\nThe following fixes landed in the upstream `cc-backend/pkg/metricstore` package\nand are included via the dependency upgrade:\n\n- **WAL correctness**: Fixed WAL rotation being skipped for all nodes due to a\n non-blocking send on a too-small channel; fixed unbound growth of WAL files\n when a checkpointing error occurs; fixed bugs in the WAL journal pipeline.\n- **WAL throughput**: Sharded the WAL consumer for higher write throughput; added\n buffered I/O to WAL writes.\n- **Checkpoint stability**: Paused WAL writes during binary checkpoint creation\n to prevent message drops; restructured cleanup archiving to stay within the\n 32 k row limit of `parquet-go`.\n- **Memory**: Fixed a memory explosion caused by broken emergency-free and batch\n aborts; reduced memory usage in the Parquet checkpoint archiver; fixed\n preventing memory spikes in the Parquet writer during the move/archive policy.\n- **NATS**: Fixed blocking `ReceiveNats` call; fixed NATS contention under load.\n- **Shutdown**: Increased shutdown timeouts; added WAL flush interval tuning;\n added shutdown timing logs.\n- **Observability**: Added verbose logs for `DataDoesNotAlign` errors; reduced\n noise by demoting a missing-metric warning to debug level.\n- **Configuration**: Restored `checkpointInterval` as an optional config key.\n\n## Breaking changes (from v1.4.x)\n\n- The internal `memorystore`, `avro`, `resampler`, and `util` packages have been\n removed. The storage engine is now provided by the\n [`cc-backend`](https://github.com/ClusterCockpit/cc-backend) package\n (`cc-backend/pkg/metricstore`). This repository is now the HTTP API wrapper\n only.\n- The configuration schema has changed. Refer to `configs/config.json` for the\n updated structure.","originalFile":"# `cc-metric-store` version 1.5.3\n\nThis is a major release of `cc-metric-store`, the metric timeseries cache\nimplementation of ClusterCockpit. Since the storage engine is now part of\n`cc-backend` we will follow the version number of `cc-backend`.\nFor release specific notes visit the [ClusterCockpit Documentation](https://clusterockpit.org/docs/release/).\n\n## Breaking changes\n\n- The internal `memorystore`, `avro`, `resampler`, and `util` packages have been\n removed. The storage engine is now provided by the\n [`cc-backend`](https://github.com/ClusterCockpit/cc-backend) package\n (`cc-backend/pkg/metricstore`). This repository is now the HTTP API wrapper\n only.\n- The configuration schema has changed. Refer to `configs/config.json` for the\n updated structure.\n\n## Notable changes\n\n- **Storage engine extracted to `cc-backend` library**: The entire in-memory\n time-series storage engine was moved to `cc-backend/pkg/metricstore`. This\n reduces duplication in the ClusterCockpit suite and enables shared maintenance\n of the storage layer.\n- **HealthCheck API endpoint**: New `GET /api/healthcheck/` endpoint reports the\n health status of cluster nodes.\n- **Dynamic memory management**: Memory limits can now be adjusted at runtime via\n a callback from the `cc-backend` library.\n- **Configuration schema validation**: The config and metric config JSON schemas\n have been updated and are now validated against the structs they describe.\n- **Startup refactored**: Application startup has been split into `cli.go` and\n `server.go` for clearer separation of concerns.\n- **`go fix` applied**: Codebase updated to current Go idioms.\n- **Dependency upgrades**: `nats.go` bumped from 1.36.0 to 1.47.0;\n `cc-lib` updated to v2.8.0; `cc-backend` updated to v1.5.0; various other\n module upgrades.\n","structuredPatch":[{"oldStart":1,"oldLines":12,"newStart":1,"newLines":50,"lines":[" # `cc-metric-store` version 1.5.3"," ","-This is a major release of `cc-metric-store`, the metric timeseries cache","+This is a bugfix release of `cc-metric-store`, the metric timeseries cache"," implementation of ClusterCockpit. Since the storage engine is now part of"," `cc-backend` we will follow the version number of `cc-backend`."," For release specific notes visit the [ClusterCockpit Documentation](https://clusterockpit.org/docs/release/)."," ","-## Breaking changes","+## Notable changes"," ","+- **`-cleanup-checkpoints` CLI flag**: New flag triggers checkpoint cleanup","+ (delete or archive to Parquet) based on the configured retention and cleanup","+ settings, then exits. Useful for one-off maintenance without starting the full","+ server.","+- **GC initialised before checkpoint load**: `GOGC=15` is now set before","+ `metricstore.Init` so the garbage-collector baseline is established prior to","+ the largest allocation event (loading checkpoints from disk), reducing","+ unnecessary heap growth at startup.","+- **Dependency upgrades**: `cc-backend` updated from v1.5.0 to v1.5.3;","+ `cc-lib` updated from v2.8.0 to v2.11.0; `nats.go` bumped from v1.49.0 to","+ v1.50.0; `parquet-go` bumped from v0.28.0 to v0.29.0; various other module","+ upgrades.","+","+## Metricstore package fixes (cc-backend v1.5.0 → v1.5.3)","+","+The following fixes landed in the upstream `cc-backend/pkg/metricstore` package","+and are included via the dependency upgrade:","+","+- **WAL correctness**: Fixed WAL rotation being skipped for all nodes due to a","+ non-blocking send on a too-small channel; fixed unbound growth of WAL files","+ when a checkpointing error occurs; fixed bugs in the WAL journal pipeline.","+- **WAL throughput**: Sharded the WAL consumer for higher write throughput; added","+ buffered I/O to WAL writes.","+- **Checkpoint stability**: Paused WAL writes during binary checkpoint creation","+ to prevent message drops; restructured cleanup archiving to stay within the","+ 32 k row limit of `parquet-go`.","+- **Memory**: Fixed a memory explosion caused by broken emergency-free and batch","+ aborts; reduced memory usage in the Parquet checkpoint archiver; fixed","+ preventing memory spikes in the Parquet writer during the move/archive policy.","+- **NATS**: Fixed blocking `ReceiveNats` call; fixed NATS contention under load.","+- **Shutdown**: Increased shutdown timeouts; added WAL flush interval tuning;","+ added shutdown timing logs.","+- **Observability**: Added verbose logs for `DataDoesNotAlign` errors; reduced","+ noise by demoting a missing-metric warning to debug level.","+- **Configuration**: Restored `checkpointInterval` as an optional config key.","+","+## Breaking changes (from v1.4.x)","+"," - The internal `memorystore`, `avro`, `resampler`, and `util` packages have been"," removed. The storage engine is now provided by the"," [`cc-backend`](https://github.com/ClusterCockpit/cc-backend) package"]},{"oldStart":14,"oldLines":22,"newStart":52,"newLines":3,"lines":[" only."," - The configuration schema has changed. Refer to `configs/config.json` for the"," updated structure.","-","-## Notable changes","-","-- **Storage engine extracted to `cc-backend` library**: The entire in-memory","- time-series storage engine was moved to `cc-backend/pkg/metricstore`. 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