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https://issues.apache.org/jira/browse/ZOOKEEPER-2111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14294404#comment-14294404
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Hadoop QA commented on ZOOKEEPER-2111:
--------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12694866/ZOOKEEPER-2111.patch
against trunk revision 1655082.
+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 appears to introduce 3 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/2494//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2494//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2494//console
This message is automatically generated.
> Not isAlive states should be synchronized in ClientCnxn
> -------------------------------------------------------
>
> Key: ZOOKEEPER-2111
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2111
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Reporter: Hongchao Deng
> Assignee: Hongchao Deng
> Attachments: ZOOKEEPER-2111.patch, ZOOKEEPER-2111.patch
>
>
> In ClientCnxn.queuePacket, it checks variables of state and closing and then
> make decisions. There is toctou race in queuePacket():
> {code}
> if (!state.isAlive() || closing) {
> conLossPacket(packet);
> } else {
> ...
> }
> {code}
> A possible race:
> in SendThread.run():
> {code}
> while (state.isAlive()) {
> ...
> }
> cleanup();
> {code}
> When it checks in queuePacket(), state is still alive. Then state isn't
> alive, SendThread.run() cleans up outgoingQueue. Then queuePacket adds packet
> to outgoingQueue. The packet should be waken up with exception. But it won't
> at this case.
> The same problem could happen to variable "closing".
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