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Posted to issues@hbase.apache.org by "Andrew Kyle Purtell (Jira)" <ji...@apache.org> on 2021/04/23 22:36:00 UTC
[jira] [Commented] (HBASE-25808) [branch-1] Backport improvements
to FSHLog from branch-2
[ https://issues.apache.org/jira/browse/HBASE-25808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17331082#comment-17331082 ]
Andrew Kyle Purtell commented on HBASE-25808:
---------------------------------------------
[~reidchan]
> [branch-1] Backport improvements to FSHLog from branch-2
> --------------------------------------------------------
>
> Key: HBASE-25808
> URL: https://issues.apache.org/jira/browse/HBASE-25808
> Project: HBase
> Issue Type: New Feature
> Components: regionserver, wal
> Affects Versions: 1.6.0
> Reporter: Andrew Kyle Purtell
> Assignee: Andrew Kyle Purtell
> Priority: Major
> Fix For: 1.7.0
>
>
> From c96b642f15d (HBASE-15265 Implement an asynchronous FSHLog)
> - Better formatting; use { } instead of dangling ifs, elses, etc. in RingBufferEventHandler.
>
> From b1269ec57ff (HBASE-19811 Fix findbugs and error-prone warnings in hbase-server (branch-2))
> - Change syncFuturesCount in RingBufferEventHandler from 'volatile int' to AtomicInteger.
> 'volatile' is insufficient for multithreaded access.
>
> From afc1746757f (HBASE-24034 [Flakey Tests] A couple of fixes and cleanups)
> - Make a local copy of takeSyncFuture after we get it in SyncRunner#run.
> This looks like a workaround for a JIT/compiler bug in some Java versions. (SCARY)
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