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https://issues.apache.org/jira/browse/HBASE-14168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14648085#comment-14648085
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Ted Yu commented on HBASE-14168:
--------------------------------
TestTableInputFormat#testTableRecordReaderScannerTimeout uses a scanner which
throws UnknownScannerException.
The test retries until result is returned.
> Avoid useless retry as exception implies in TableRecordReaderImpl
> -----------------------------------------------------------------
>
> Key: HBASE-14168
> URL: https://issues.apache.org/jira/browse/HBASE-14168
> Project: HBase
> Issue Type: Bug
> Components: mapreduce
> Reporter: zhouyingchao
> Assignee: zhouyingchao
> Priority: Minor
> Fix For: 2.0.0, 1.2.0, 1.1.2, 1.3.0
>
> Attachments: HBASE-14168-001.patch
>
>
> In TableRecordReaderImpl, even if the next() of scan throws
> DoNotRetryIOException, it would still be retried. This does not make sense
> and should be avoided.
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