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https://issues.apache.org/jira/browse/HBASE-14388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Rodionov updated HBASE-14388:
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Release Note:
Periodic memstore flush changes
New configuration option: hbase.regionserver.flush.jitter. Default value: 0.5.
This affects memstore flush interval
(hbase.regionserver.optionalcacheflushinterval) and maximum changes per flush
(hbase.regionserver.flush.per.changes) by randomizing them. After every flush
operation, the new random value is assigned to memstore flush interval and to
maximum changes per flush.
Maximum WAL files changes
The configuration option hbase.regionserver.maxlogs is obsolete. The maximum
number of WAL files is defined now dynamically:
maxLogs = HEAP_SIZE * memstoreRatio * 2/ LogRollSize
> Compaction improvements: Avoid flush storms by jittering flush interval and
> max log files
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-14388
> URL: https://issues.apache.org/jira/browse/HBASE-14388
> Project: HBase
> Issue Type: Improvement
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Fix For: 2.0.0
>
> Attachments: HBASE-14388-v1.patch
>
>
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