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https://issues.apache.org/jira/browse/HBASE-5333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201880#comment-13201880
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Jean-Daniel Cryans commented on HBASE-5333:
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I've done some brainstorming with Stack and the result was HBASE-5162.
> Introduce Memstore "backpressure" for writes
> --------------------------------------------
>
> Key: HBASE-5333
> URL: https://issues.apache.org/jira/browse/HBASE-5333
> Project: HBase
> Issue Type: Improvement
> Reporter: Lars Hofhansl
>
> Currently if the memstore/flush/compaction cannot keep up with the writeload,
> we block writers up to hbase.hstore.blockingWaitTime milliseconds (default is
> 90000).
> Would be nice if there was a concept of a soft "backpressure" that slows
> writing clients gracefully *before* we reach this condition.
> From the log:
> "2012-02-04 00:00:06,963 WARN
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher: Region
> <table>,,1328313512779.c2761757621ddf8fb78baf5288d71271. has too many store
> files; delaying flush up to 90000ms"
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