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Introduce a new stat which indicates a bleve index's convergence #2152

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Merged
Thejas-bhat merged 3 commits into from
Feb 28, 2025
Merged

Introduce a new stat which indicates a bleve index's convergence #2152

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538fb72
introduce a new stat
Thejas-bhat Feb 25, 2025
2315b9c
rename stat
Thejas-bhat Feb 25, 2025
1b2c343
rename stat
Thejas-bhat Feb 27, 2025
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11 changes: 11 additions & 0 deletions index/scorch/scorch.go
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Original file line number Diff line number Diff line change
Expand Up @@ -658,6 +658,17 @@ func (s *Scorch) StatsMap() map[string]interface{} {
m["num_persister_nap_merger_break"] = m["TotPersisterMergerNapBreak"]
m["total_compaction_written_bytes"] = m["TotFileMergeWrittenBytes"]

// the bool stat `index_bgthreads_active` indicates whether the background routines
// (which are responsible for the index to attain a steady state) are still
// doing some work.
if rootEpoch, ok := m["CurRootEpoch"].(uint64); ok {
if lastMergedEpoch, ok := m["LastMergedEpoch"].(uint64); ok {
if lastPersistedEpoch, ok := m["LastPersistedEpoch"].(uint64); ok {
m["index_bgthreads_active"] = !(lastMergedEpoch == rootEpoch && lastPersistedEpoch == rootEpoch)
}
}
}

// calculate the aggregate of all the segment's field stats
aggFieldStats := newFieldStats()
for _, segmentSnapshot := range indexSnapshot.Segments() {
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