Fix ES bulk processor commit timeout #3696
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rodrigozhou
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| p.metricsHandler.Histogram(metrics.ElasticsearchBulkProcessorQueuedRequests.GetMetricName(), metrics.ElasticsearchBulkProcessorBulkSize.GetMetricUnit()). | ||
| Record(int64(p.mapToAckFuture.Len() - len(requests))) | ||
| Record(int64(p.mapToAckFuture.Len())) |
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What is this metric supposed to mean? Number of queued requests?
Wouldn't it make more sense to call this after the queue size changes? Like, in bulkAfterAction?
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Like how many documents are still waiting to be flushed. I like the idea of moving this to bulkAfterAction.
common/persistence/visibility/store/elasticsearch/visibility_store.go
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yycptt
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What changed?
Increased default number of bulk processor workers from 1 to 2. Rationale: it should help with commit latency during traffic spikes and with "wait add" latency.This goes to Increase default number of Elasticsearch bulk processor workers to 2 #3738 instead.elasticsearch_bulk_processor_queued_requestsmetric is emitted. It now shows number of pending requests after current bulk is processed.Why?
Fixing bugs, improving overall ES write latency.
How did you test it?
Existing tests.
Potential risks
No risks.
Is hotfix candidate?
Yes.