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https://issues.apache.org/jira/browse/HBASE-9489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832187#comment-13832187
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chunhui shen commented on HBASE-9489:
-------------------------------------
{code}
+ List<Mutation> metaEntries = new ArrayList<Mutation>();
+ if (rsCoprocessorHost != null) {
+ if(rsCoprocessorHost.preMergeBeforePONR(this.region_a, this.region_b,
+ metaEntries)){
+ throw new IOException("Coprocessor bypassing regions " + this.region_a
+ " " + this.region_b
+ + " merge.");
+ }
{code}
Adding annotation for 'metaEntries ' would be readable
> Add cp hooks in online merge before and after setting PONR
> ----------------------------------------------------------
>
> Key: HBASE-9489
> URL: https://issues.apache.org/jira/browse/HBASE-9489
> Project: HBase
> Issue Type: Sub-task
> Reporter: rajeshbabu
> Assignee: rajeshbabu
> Attachments: HBASE-9489.patch, HBASE-9489_v2.patch
>
>
> As we need to merge index region along with user region we need the hooks
> before and after setting PONR in region merge transtion.
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