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Posted to issues@hbase.apache.org by "Ashu Pachauri (JIRA)" <ji...@apache.org> on 2017/02/01 22:00:53 UTC
[jira] [Updated] (HBASE-16755) Honor flush policy under global
memstore pressure
[ https://issues.apache.org/jira/browse/HBASE-16755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ashu Pachauri updated HBASE-16755:
----------------------------------
Fix Version/s: 1.3.1
> Honor flush policy under global memstore pressure
> -------------------------------------------------
>
> Key: HBASE-16755
> URL: https://issues.apache.org/jira/browse/HBASE-16755
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Ashu Pachauri
> Assignee: Ashu Pachauri
> Fix For: 1.3.1
>
> Attachments: HBASE-16755.v0.patch
>
>
> When global memstore reaches the low water mark, we pick the best flushable region and flush all column families for it. This is a suboptimal approach in the sense that it leads to an unnecessarily high file creation rate and IO amplification due to compactions. We should still try to honor the underlying FlushPolicy.
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