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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add migration 14: partial covering indexes WHERE job_state='running'
for user/project/subcluster groupings (tiny B-tree vs full table)
- Inline literal state value in BuildWhereClause so SQLite matches
partial indexes instead of parameterized placeholders
- Add per-request statsGroupCache (sync.Once per filter+groupBy key)
so identical grouped stats queries execute only once per GQL operation
- Parallelize 4 histogram queries in AddHistograms using errgroup
- Consolidate frontend from 6 GQL aliases to 2, sort+slice top-10
client-side via $derived
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: 5b26a6e5ff10
Merge three separate queries (topJobsQuery, topNodesQuery, topAccsQuery)
into one topStatsQuery with 6 aliased jobsStatistics fields, reducing
3 HTTP round trips to 1 on the status dashboard.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: 40d806a3240c
Adds composite covering indexes on (cluster, job_state, <group_col>, ...)
for user, project, and subcluster groupings to enable index-only scans
for status views. Drops subsumed 3-column indexes.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: 3d8def28e96e
WAL writes now go through bufio.Writer instead of raw syscalls per record,
reducing I/O overhead. Buffers are flushed on rotate, drain, and shutdown.
Fixed misleading MemoryCap comment ("Max bytes" → "Max memory in GB").
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: b38dc35e5334
- Fix MemoryUsageTracker: remove premature bufferPool.Clear() that prevented
mem.Alloc from decreasing, replace broken ForceFree loop (100 iterations
with no GC) with progressive time-based Free at 75%/50%/25% retention,
add bufferPool.Clear()+GC between steps so memory stats update correctly
- Enable debug.FreeOSMemory() after emergency freeing to return memory to OS
- Add adaptive ticker: 30s checks when memory >80% of cap, normal otherwise
- Reduce default memory check interval from 1h to 5min
- Don't abort entire NATS batch on single write error (out-of-order timestamp),
log warning and continue processing remaining lines
- Prune empty levels from tree after free() to reduce overhead
- Include buffer struct overhead in sizeInBytes() for more accurate reporting
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: 7ce28627fc1d
