Jan Eitzinger
af86456ab9
Entire-Session: 0943a044-b17e-4215-8591-c1a0c816ddf0 Entire-Strategy: manual-commit Entire-Agent: Claude Code Ephemeral-branch: entire/02f82c2-e3b0c4
1007 B
Session Context
User Prompts
Prompt 1
Implement the following plan:
Fix: Memory Escalation in flattenCheckpointFile (68GB+)
Context
Production gops shows flattenCheckpointFile allocating 68GB+ (74.89% of memory). The archiving pipeline accumulates ALL metric data from ALL hosts into a single []ParquetMetricRow slice before writing to Parquet. For large HPC clusters this is catastrophic. Additionally, the SortingWriterConfig in the parquet writer buffers everything again internally.
Root Cause
Two-layer unbounde...
Prompt 2
Are the any other cases with memory spikes using the Parquet Writer, e.g. in the nodestate retention?
Prompt 3
[Request interrupted by user for tool use]
Prompt 4
Compare the archive writer implementation with @~/tmp/cc-backend/pkg/metricstore/parquetArchive.go . Compare and explain differences.
Prompt 5
Add an Info logmessage in archiveCheckpoints that archving started and provide timing information how long it took.