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https://issues.apache.org/jira/browse/HBASE-2087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835521#action_12835521
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stack commented on HBASE-2087:
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I was going to explore blocking the problematic store only by removing its
flush request from the flush queue readding it later after the timer elapses
(or after compaction completes)
> The wait on compaction because "Too many store files" holds up all flushing
> ---------------------------------------------------------------------------
>
> Key: HBASE-2087
> URL: https://issues.apache.org/jira/browse/HBASE-2087
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 0.20.4
>
>
> The method MemStoreFlusher#checkStoreFileCount is called from flushRegion.
> flushRegion is called by MemStoreFlusher#run thread. If the
> checkStoreFileCount finds too many store files, it'll stick around waiting on
> a compaction to happen. While its hanging, the MemStoreFlusher#run is held
> up. No other region can flush. Meantime WALs will be rolling and memory
> will be accumulating writes.
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