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https://issues.apache.org/jira/browse/ZOOKEEPER-2366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15294066#comment-15294066
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Hadoop QA commented on ZOOKEEPER-2366:
--------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12791407/ZOOKEEPER-2366.patch
against trunk revision 1743978.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 11 new or modified tests.
+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 2.0.3)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3163//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3163//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3163//console
This message is automatically generated.
> Reconfiguration of client port causes a socket leak
> ---------------------------------------------------
>
> Key: ZOOKEEPER-2366
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2366
> Project: ZooKeeper
> Issue Type: Bug
> Components: quorum
> Affects Versions: 3.5.0
> Reporter: Timothy Ward
> Assignee: Timothy Ward
> Priority: Blocker
> Fix For: 3.5.2
>
> Attachments: ZOOKEEPER-2366.patch, zookeeper.patch
>
>
> The NIOServerCnxnFactory reconfigure method can leak server sockets, and
> hence make ports unusable until the JVM restarts:
> The first line of the method takes a reference to the current
> ServerSocketChannel and then the next line replaces it. The subsequent
> interactions with the server socket can fail (for example if the
> reconfiguration tries to bind to an in-use port). If they fail *before* the
> call to oldSS.close() then oldSS is *never* closed. This holds that port open
> forever, and prevents the user from rolling back to the previous port!
> The code from reconfigure is shown below:
> ServerSocketChannel oldSS = ss;
> try {
> this.ss = ServerSocketChannel.open();
> ss.socket().setReuseAddress(true);
> LOG.info("binding to port " + addr);
> ss.socket().bind(addr);
> ss.configureBlocking(false);
> acceptThread.setReconfiguring();
> oldSS.close();
> acceptThread.wakeupSelector();
> try {
> acceptThread.join();
> } catch (InterruptedException e) {
> LOG.error("Error joining old acceptThread when
> reconfiguring client port " + e.getMessage());
> }
> acceptThread = new AcceptThread(ss, addr, selectorThreads);
> acceptThread.start();
> } catch(IOException e) {
> LOG.error("Error reconfiguring client port to " + addr + " " +
> e.getMessage());
> }
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