"Once these long compassions are finished, the queued ones are processed
very quickly."
I don't think that's the case as I described there was no additional
compaction completion log at that time. There was one item of compaction
completion log every several minutes, the same as when the queue was
By the description, it seems compaction of a specific subset of regions is
taking a long time to complete, filling all the compaction threads whilst
all other compaction requests are queued waiting for these long ones to
complete. Once these long compassions are finished, the queued ones are
proces
Hi,
We are experiencing periodic slow response issue. We investigated the issue
and found it's related to hfile compaction. The slow down happens when
there are many compaction activities in log. So we tuned some compaction
parameters and also started to monitor the metric: compactionQueueLength.
