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https://issues.apache.org/jira/browse/HADOOP-11957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539088#comment-14539088
]
Hadoop QA commented on HADOOP-11957:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch | 14m 34s | Pre-patch trunk compilation is
healthy. |
| {color:green}+1{color} | @author | 0m 0s | The patch does not contain any
@author tags. |
| {color:green}+1{color} | tests included | 0m 0s | The patch appears to
include 1 new or modified test files. |
| {color:green}+1{color} | javac | 7m 30s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 9m 37s | There were no new javadoc
warning messages. |
| {color:green}+1{color} | release audit | 0m 23s | The applied patch does
not increase the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle | 1m 7s | There were no new checkstyle
issues. |
| {color:green}+1{color} | whitespace | 0m 0s | The patch has no lines that
end in whitespace. |
| {color:green}+1{color} | install | 1m 38s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 32s | The patch built with
eclipse:eclipse. |
| {color:green}+1{color} | findbugs | 1m 40s | The patch does not introduce
any new Findbugs (version 2.0.3) warnings. |
| {color:red}-1{color} | common tests | 29m 5s | Tests failed in
hadoop-common. |
| | | 66m 9s | |
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|| Reason || Tests ||
| Failed unit tests | hadoop.net.unix.TestDomainSocket |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12732085/HADOOP-11957.001.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / d6f6741 |
| hadoop-common test log |
https://builds.apache.org/job/PreCommit-HADOOP-Build/6611/artifact/patchprocess/testrun_hadoop-common.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/6611/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf901.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP
PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/6611/console |
This message was automatically generated.
> if an IOException error is thrown in DomainSocket.close we go into infinite
> loop.
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-11957
> URL: https://issues.apache.org/jira/browse/HADOOP-11957
> Project: Hadoop Common
> Issue Type: Bug
> Components: net
> Affects Versions: 2.7.1
> Reporter: Anu Engineer
> Assignee: Anu Engineer
> Attachments: HADOOP-11957.001.patch
>
>
> if an IOException error is thrown in DomainSocket.close we go into infinite
> loop.
> Issue : If the shutdown0(fd) call throws an IOException we break out of the
> if shutdown call but will continue to loop in the while loop infinitely since
> we have no way of decrementing the counter. Please scroll down and see the
> comment marked with Bug Bug to see where the issue is.
> {code:title=DomainSocket.java}
> @Override
> public void close() throws IOException {
> // Set the closed bit on this DomainSocket
> int count = 0;
> try {
> count = refCount.setClosed();
> } catch (ClosedChannelException e) {
> // Someone else already closed the DomainSocket.
> return;
> }
> // Wait for all references to go away
> boolean didShutdown = false;
> boolean interrupted = false;
> while (count > 0) {
> if (!didShutdown) {
> try {
> // Calling shutdown on the socket will interrupt blocking system
> // calls like accept, write, and read that are going on in a
> // different thread.
> shutdown0(fd);
> } catch (IOException e) {
> LOG.error("shutdown error: ", e);
> }
> didShutdown = true;
> // *BUG BUG* <-- Here the code will never exit the loop
> // if the count is greater then 0. we need to break out
> // of the while loop in case of IOException Error
> }
> try {
> Thread.sleep(10);
> } catch (InterruptedException e) {
> interrupted = true;
> }
> count = refCount.getReferenceCount();
> }
> // At this point, nobody has a reference to the file descriptor,
> // and nobody will be able to get one in the future either.
> // We now call close(2) on the file descriptor.
> // After this point, the file descriptor number will be reused by
> // something else. Although this DomainSocket object continues to hold
> // the old file descriptor number (it's a final field), we never use it
> // again because this DomainSocket is closed.
> close0(fd);
> if (interrupted) {
> Thread.currentThread().interrupt();
> }
> }
> {code}
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