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https://issues.apache.org/jira/browse/HBASE-17579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893578#comment-15893578
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Gary Helmling commented on HBASE-17579:
---------------------------------------
You also need to change gaugesMap from Map to ConcurrentMap, as
Map.putIfAbsent() is only present in Java 8 and HBase 1.3 supports both 7 & 8.
> Backport HBASE-16302 to 1.3.1
> -----------------------------
>
> Key: HBASE-17579
> URL: https://issues.apache.org/jira/browse/HBASE-17579
> Project: HBase
> Issue Type: Improvement
> Components: Replication
> Reporter: Ashu Pachauri
> Assignee: Ashu Pachauri
> Fix For: 1.3.1
>
> Attachments: HBASE-17579.branch-1.3.001.patch,
> HBASE-17579.branch-1.3.002.patch
>
>
> This is a simple enough change to be included in 1.3.1, and replication
> monitoring essentially breaks without this change.
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