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https://issues.apache.org/jira/browse/HBASE-15390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15199117#comment-15199117
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Elliott Clark commented on HBASE-15390:
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Can we get a comment on why that if is needed?
+1 with the comment added.
> Unnecessary MetaCache evictions cause elevated number of requests to meta
> -------------------------------------------------------------------------
>
> Key: HBASE-15390
> URL: https://issues.apache.org/jira/browse/HBASE-15390
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 1.2.0
> Reporter: Mikhail Antonov
> Assignee: Mikhail Antonov
> Priority: Blocker
> Fix For: 2.0.0, 1.3.0
>
> Attachments: HBASE-15390-addendum.patch,
> HBASE-15390.branch-1.3.v1.patch, HBASE-15390.v1.patch
>
>
> - In ClientExceptionsUtil#findException() we don't unwrap correctly all
> remote exceptions but a few selected ones;
> more specifically, we don't unwrap correctly all remote exceptions where
> getCause() exception doesn't have a constructor (String message)
> - In AsyncProcess#receiveGlobalFailure() we don't check for
> #isMetaClearingException() if tableName is null
> - We don't have metric on client side to track number of cache drops
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