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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-1753) ClientCnxn is not properly releasing the resources, which are used to ping RwServer
Date Thu, 05 Sep 2013 15:33:52 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-1753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13759161#comment-13759161
] 

Hadoop QA commented on ZOOKEEPER-1753:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12601618/0001-ZOOKEEPER-1753-fix-branch-3_4.patch
  against trunk revision 1519655.

    +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 core unit tests.

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

Test results: https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/1555//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/1555//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/1555//console

This message is automatically generated.
                
> ClientCnxn is not properly releasing the resources, which are used to ping RwServer
> -----------------------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-1753
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1753
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: java client
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>             Fix For: 4.0.0, 3.4.6
>
>         Attachments: 0001-ZOOKEEPER-1753-fix-branch-3_4.patch, 0001-ZOOKEEPER-1753.patch
>
>
> While pinging to the RwServer, ClientCnxn is opening a socket and using BufferedReader.
These are not properly closed in finally block and could cause leaks on exceptional cases.
> ClientCnxn#pingRwServer()
> {code}
>             try {
>                 Socket sock = new Socket(addr.getHostName(), addr.getPort());
>                 BufferedReader br = new BufferedReader(
>                         new InputStreamReader(sock.getInputStream()));
>                 ......
>                 sock.close();
>                 br.close();
>             } catch (ConnectException e) {
>                 // ignore, this just means server is not up
>             } catch (IOException e) {
>                 // some unexpected error, warn about it
>                 LOG.warn("Exception while seeking for r/w server " +
>                         e.getMessage(), e);
>             }
> {code}

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