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https://issues.apache.org/jira/browse/HBASE-5930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267754#comment-13267754
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Todd Lipcon commented on HBASE-5930:
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Seems reasonable to flush the memstore if it's had no write activity at all in
N minutes. Then it shouldn't lead to smaller storefiles, right?
> Periodically flush the Memstore?
> --------------------------------
>
> Key: HBASE-5930
> URL: https://issues.apache.org/jira/browse/HBASE-5930
> Project: HBase
> Issue Type: Improvement
> Reporter: Lars Hofhansl
> Priority: Minor
>
> A colleague of mine ran into an interesting issue.
> He inserted some data with the WAL disabled, which happened to fit in the
> aggregate Memstores memory.
> Two weeks later he a had problem with the HDFS cluster, which caused the
> region servers to abort. He found that his data was lost. Looking at the log
> we found that the Memstores were not flushed at all during these two weeks.
> Should we have an option to flush memstores periodically. There are obvious
> downsides to this, like many small storefiles, etc.
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