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https://issues.apache.org/jira/browse/HBASE-5717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247457#comment-13247457
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jirapos...@reviews.apache.org commented on HBASE-5717:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/4640/
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(Updated 2012-04-05 18:15:41.419224)


Review request for hbase.


Changes
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Added finally block (with try/catch inside). I'd prefer to also add logging 
rather than swallowing the exceptions, but that seems like it should be a 
different Jira (and maybe should cover all cases that swallow exceptions).

Also: sorry for a) sending a review on the board for something that's probably 
too small, and b) writing comments on my own review (intended to annotate, 
didn't realize it would appear as if I were a separate reviewer).


Summary
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Fix for persistence of scan metrics when the scanner doesn't run to exhaustion.


This addresses bug HBASE-5717.
    https://issues.apache.org/jira/browse/HBASE-5717


Diffs (updated)
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  /src/main/java/org/apache/hadoop/hbase/client/ClientScanner.java 1309585 
  /src/test/java/org/apache/hadoop/hbase/client/TestFromClientSide.java 1309585 

Diff: https://reviews.apache.org/r/4640/diff


Testing
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Altered the scan metrics unit test to show this problem (now fails without 
changes to ClientScanner.java).


Thanks,

Ian


                
> Scanner metrics are only reported if you get to the end of a scanner
> --------------------------------------------------------------------
>
>                 Key: HBASE-5717
>                 URL: https://issues.apache.org/jira/browse/HBASE-5717
>             Project: HBase
>          Issue Type: Bug
>          Components: client, metrics
>            Reporter: Ian Varley
>            Priority: Minor
>         Attachments: ClientScanner_HBASE_5717-v2.patch, 
> ClientScanner_HBASE_5717.patch
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> When you turn on Scanner Metrics, the metrics are currently only made 
> available if you run over all records available in the scanner. If you stop 
> iterating before the end, the values are never flushed into the metrics 
> object (in the Scan attribute).
> Will supply a patch with fix and test.

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