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new 15f56196e06 Prometheus config for mergebuffer used bytes (#19110)
15f56196e06 is described below
commit 15f56196e0603a151efb7e2da401c2cc769557fd
Author: Virushade <[email protected]>
AuthorDate: Wed Mar 11 13:43:36 2026 +0800
Prometheus config for mergebuffer used bytes (#19110)
* Prometheus config for mergebuffer used bytes
* Typo
* Update
extensions-contrib/prometheus-emitter/src/main/resources/defaultMetrics.json
Co-authored-by: aho135 <[email protected]>
---------
Co-authored-by: aho135 <[email protected]>
---
.../prometheus-emitter/src/main/resources/defaultMetrics.json | 2 ++
1 file changed, 2 insertions(+)
diff --git
a/extensions-contrib/prometheus-emitter/src/main/resources/defaultMetrics.json
b/extensions-contrib/prometheus-emitter/src/main/resources/defaultMetrics.json
index 50f8ba891b7..0fcc7a87c4c 100644
---
a/extensions-contrib/prometheus-emitter/src/main/resources/defaultMetrics.json
+++
b/extensions-contrib/prometheus-emitter/src/main/resources/defaultMetrics.json
@@ -50,6 +50,8 @@
"mergeBuffer/used": { "dimensions": [], "type": "gauge", "help": "Number
of merge buffers used"},
"mergeBuffer/acquisitionTimeNs": { "dimensions": [], "type": "timer",
"help": "Total time in nanoseconds to acquire merge buffer for groupBy
queries."},
"mergeBuffer/maxAcquisitionTimeNs": { "dimensions": [], "type": "timer",
"help": "Maximum time in nanoseconds to acquire merge buffer for any single
groupBy query within the emission period."},
+ "mergeBuffer/bytesUsed" : { "dimensions": [], "type": "gauge", "help":
"Total number of bytes used by merge buffers to process groupBy queries."},
+ "mergeBuffer/maxBytesUsed" : { "dimensions": [], "type": "gauge", "help":
"Maximum number of bytes used by merge buffers for any single groupBy query
within the emission period."},
"mergeBuffer/queries": { "dimensions": [], "type": "gauge", "help":
"Number of groupBy queries that acquired a batch of buffers from the merge
buffer pool."},
"groupBy/spilledQueries": { "dimensions": [], "type": "gauge", "help":
"Number of groupBy queries that have spilled onto the disk."},
"groupBy/maxSpilledBytes": { "dimensions": [], "type": "gauge", "help":
"Maximum number of bytes spilled to disk by any single groupBy query within the
emission period."},
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