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https://issues.apache.org/jira/browse/HBASE-20624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-20624:
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Attachment: HBASE-20624.patch
> Race in ReplicationSource which causes walEntryFilter being null when
> creating new shipper
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-20624
> URL: https://issues.apache.org/jira/browse/HBASE-20624
> Project: HBase
> Issue Type: Bug
> Reporter: Duo Zhang
> Priority: Major
> Attachments: HBASE-20624.patch
>
>
> We initialize the ReplicationSource in a background thread to avoid blocking
> the peer modification. And when enqueueLog is called and we want to start a
> new shipper, we will check whether the replicationEndpoint is initialized, if
> so, we will start a new shipper. But in the initialize thread, we will
> initialize walEntryFilter after replicationEndpoint , so it is possible that
> when we start a new shipper, the walEntryFilter is still null and cause NPE.
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