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https://issues.apache.org/jira/browse/ZOOKEEPER-59?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12842403#action_12842403
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Hadoop QA commented on ZOOKEEPER-59:
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-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12438130/ZOOKEEPER-59.patch
against trunk revision 919706.
+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 tests are needed for 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 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:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h8.grid.sp2.yahoo.net/135/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h8.grid.sp2.yahoo.net/135/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h8.grid.sp2.yahoo.net/135/console
This message is automatically generated.
> Synchronized block in NIOServerCnxn
> -----------------------------------
>
> Key: ZOOKEEPER-59
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-59
> Project: Zookeeper
> Issue Type: Bug
> Components: server
> Reporter: Flavio Paiva Junqueira
> Assignee: Flavio Paiva Junqueira
> Fix For: 3.3.0
>
> Attachments: ZOOKEEPER-59.patch, ZOOKEEPER-59.patch,
> ZOOKEEPER-59.patch
>
>
> There are two synchronized blocks locking on different objects, and to me
> they should be guarded by the same object. Here are the parts of the code I'm
> talking about:
> {noformat}
> nioservercnxn.readrequ...@444
> ...
> synchronized (this) {
> outstandingRequests++;
> // check throttling
> if (zk.getInProcess() > factory.outstandingLimit) {
> disableRecv();
> // following lines should not be needed since we are
> already
> // reading
> // } else {
> // enableRecv();
> }
> }
> {noformat}
> {noformat}
> nioservercnxn.sendrespo...@740
> ...
> synchronized (this.factory) {
> outstandingRequests--;
> // check throttling
> if (zk.getInProcess() < factory.outstandingLimit
> || outstandingRequests < 1) {
> sk.selector().wakeup();
> enableRecv();
> }
> }
> {noformat}
> I think the second one is correct, and the first synchronized block should be
> guarded by "this.factory".
> This could be related to issue ZOOKEEPER-57, but I have no concrete
> indication that this is the case so far.
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