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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7695) RPC.stopProxy can throw unintended exception while logging error
Date Thu, 29 Sep 2011 04:38:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13116995#comment-13116995
] 

Hadoop QA commented on HADOOP-7695:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12496958/HADOOP-7695.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed unit tests in .

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/244//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/244//console

This message is automatically generated.
                
> RPC.stopProxy can throw unintended exception while logging error
> ----------------------------------------------------------------
>
>                 Key: HADOOP-7695
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7695
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 0.24.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>             Fix For: 0.24.0
>
>         Attachments: HADOOP-7695.patch
>
>
> {{RPC.stopProxy}} includes the following lines in case of error:
> {code}
> LOG.error("Could not get invocation handler " + invocationHandler +
>           " for proxy " + proxy + ", or invocation handler is not closeable.");
> {code}
> Trouble is, the {{proxy}} object is usually backed by {{WritableRpcEngine}}, which will
fail in the event {{toString}} is called on one of its proxy objects. See HADOOP-7694 for
more details on that issue. Until that's addressed, we might as well change the log message
in {{RPC.stopProxy}} to not call {{toString()}} on {{proxy}}.

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