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https://issues.apache.org/jira/browse/HBASE-938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12644483#action_12644483
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Billy Pearson commented on HBASE-938:
-------------------------------------
Looking at trunk my idea above will not work because we do not have the
optional flush any more.
But yes the major compaction is based off the oldest timestamps from the
mapfile's on the store level.
So restarts do not interfere with the Major compactions but will queue up over
due Major Compactions because of the open.
> major compaction period is not checked periodically
> ---------------------------------------------------
>
> Key: HBASE-938
> URL: https://issues.apache.org/jira/browse/HBASE-938
> Project: Hadoop HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.18.0, 0.18.1
> Environment: HBase 0.18 branch (should be RC1) + Hadoop 0.18 branch
> Reporter: Rong-En Fan
> Priority: Critical
> Fix For: 0.19.0
>
>
> The major compaction period, hbase.hregion.majorcompaction, is not checked
> periodically. Currently, we only request major compaction when the region is
> open or split at which point we check whether the major compaction period is
> due.
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