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This screengrab is from Jaeger, requesting all Push operations longer than 100ms on a single ingester in an hour:
The vertical clustering suggests to me that this is caused by blocking, in one case over a second.
I'm not yet sure of the cause, but my preferred theory is a lock held by a query. Hence #3169
Considering #3093 as a possible cause, I added a span for userState.createSeriesWithFingerprint() but it hasn't showed up in any of the slow traces I've looked at.
The text was updated successfully, but these errors were encountered:
This symptom was considerably improved by #3177 when I tried it.
Suggests that Go is blocking until memory is made available by GC: although Go's stop-the-world pauses are very short, individual goroutines can get hit.
This screengrab is from Jaeger, requesting all Push operations longer than 100ms on a single ingester in an hour:
The vertical clustering suggests to me that this is caused by blocking, in one case over a second.
I'm not yet sure of the cause, but my preferred theory is a lock held by a query. Hence #3169
Considering #3093 as a possible cause, I added a span for
userState.createSeriesWithFingerprint()
but it hasn't showed up in any of the slow traces I've looked at.The text was updated successfully, but these errors were encountered: