druid/extensions-contrib
Rishabh Singh 74422b58f5
Emit disk spill and merge buffer utilisation metrics for GroupBy queries (#17360)
This change is to emit following metrics as part of GroupByStatsMonitor monitor,
mergeBuffer/used -> Number of merge buffers used.
mergeBuffer/acquisitionTimeNs -> Total time required to acquire merge buffer.
mergeBuffer/acquisition -> Number of queries that acquired a batch of merge buffers.
groupBy/spilledQueries -> Number of queries that spilled onto the disk.
groupBy/spilledBytes-> Spilled bytes on the disk.
groupBy/mergeDictionarySize -> Size of the merging dictionary.
2024-11-22 14:22:03 +05:30
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Community Extensions

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