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https://issues.apache.org/jira/browse/HBASE-21001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16605319#comment-16605319
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Wei-Chiu Chuang commented on HBASE-21001:
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[~andrewcheng] thanks for the patch. Looks good to me.
Any chance to add a test? I mean, this regression went unnoticed because there
is no existing test that covers it.
Not sure if it is feasible given that ReplicationObserver and HRegion are in
different modules. A test can be added separately in a new jira or in this
patch. Either way works for me.
+1 (non-binding)
Thanks
> ReplicationObserver fails to load in HBase 2.0.0
> ------------------------------------------------
>
> Key: HBASE-21001
> URL: https://issues.apache.org/jira/browse/HBASE-21001
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha-4, 2.0.0
> Reporter: Wei-Chiu Chuang
> Assignee: Guangxu Cheng
> Priority: Major
> Labels: replication
> Attachments: HBASE-21001.master.001.patch,
> HBASE-21001.master.001.patch
>
>
> ReplicationObserver was added in HBASE-17290 to prevent "Potential loss of
> data for replication of bulk loaded hfiles".
> I tried to enable bulk loading replication feature
> (hbase.replication.bulkload.enabled=true and configure
> hbase.replication.cluster.id) on a HBase 2.0.0 cluster, but the RegionServer
> started with the following error:
> {quote}
> 2018-08-02 18:20:36,365 INFO
> org.apache.hadoop.hbase.regionserver.RegionServerCoprocessorHost: System
> coprocessor loading is enabled
> 2018-08-02 18:20:36,365 INFO
> org.apache.hadoop.hbase.regionserver.RegionServerCoprocessorHost: Table
> coprocessor loading is enabled
> 2018-08-02 18:20:36,365 ERROR
> org.apache.hadoop.hbase.regionserver.RegionServerCoprocessorHost:
> org.apache.hadoop.hbase.replication.regionserver.ReplicationObserver is not
> of type
> RegionServerCoprocessor. Check the configuration of
> hbase.coprocessor.regionserver.classes
> 2018-08-02 18:20:36,366 ERROR
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost: Cannot load coprocessor
> ReplicationObserver
> {quote}
> It looks like this was broken by HBASE-17732 to me, but I could be wrong.
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