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https://issues.apache.org/jira/browse/HBASE-9657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu updated HBASE-9657:
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Attachment: 9657-v1.txt
> Race condition in low replication checking and FSHLog#rollWriter()
> ------------------------------------------------------------------
>
> Key: HBASE-9657
> URL: https://issues.apache.org/jira/browse/HBASE-9657
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: 9657-v1.txt
>
>
> In FSHLog#syncer(), we have this comment:
> {code}
> // TODO: preserving the old behavior for now, but this check is
> strange. It's not
> // protected by any locks here, so for all we know rolling locks
> might start
> // as soon as we enter the "if". Is this best-effort optimization
> check?
> if (!this.logRollRunning) {
> checkLowReplication();
> {code}
> The implication is that checkLowReplication() may be running when
> FSHLog#rollWriter() is also running.
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