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https://issues.apache.org/jira/browse/HADOOP-11957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16293270#comment-16293270
 ] 

genericqa 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} | {color:blue} reexec {color} | {color:blue} 11m 
55s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m 
 0s{color} | {color:green} The patch appears to include 1 new or modified test 
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 32m 
49s{color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  7m 
27s{color} | {color:red} root in trunk failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
12s{color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m 
15s{color} | {color:red} hadoop-common in trunk failed. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}  
0m 44s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
15s{color} | {color:red} hadoop-common in trunk failed. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
14s{color} | {color:red} hadoop-common in trunk failed. {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
13s{color} | {color:red} hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
14s{color} | {color:red} root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 14s{color} 
| {color:red} root in the patch failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m 
14s{color} | {color:red} hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch has 137 line(s) that end in whitespace. Use 
git apply --whitespace=fix <<patch_file>>. Refer 
https://git-scm.com/docs/git-apply {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
6s{color} | {color:red} The patch 1536 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}  
1m 19s{color} | {color:green} patch has no errors when building and testing our 
client artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
15s{color} | {color:red} hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
14s{color} | {color:red} hadoop-common in the patch failed. {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m 16s{color} 
| {color:red} hadoop-common in the patch failed. {color} |
| {color:blue}0{color} | {color:blue} asflicense {color} | {color:blue}  0m 
13s{color} | {color:blue} ASF License check generated no output? {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 57m 36s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:5b98639 |
| JIRA Issue | HADOOP-11957 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12732085/HADOOP-11957.001.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 27f3ad4a6ff3 3.13.0-133-generic #182-Ubuntu SMP Tue Sep 19 
15:49:21 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 949be14 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_151 |
| compile | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/branch-compile-root.txt
 |
| mvnsite | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/branch-mvnsite-hadoop-common-project_hadoop-common.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/branch-findbugs-hadoop-common-project_hadoop-common.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/branch-javadoc-hadoop-common-project_hadoop-common.txt
 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/patch-mvninstall-hadoop-common-project_hadoop-common.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/patch-compile-root.txt
 |
| javac | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/patch-compile-root.txt
 |
| mvnsite | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/patch-mvnsite-hadoop-common-project_hadoop-common.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/whitespace-eol.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/whitespace-tabs.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/patch-findbugs-hadoop-common-project_hadoop-common.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/patch-javadoc-hadoop-common-project_hadoop-common.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/testReport/ |
| Max. process+thread count | 105 (vs. ulimit of 5000) |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13842/console |
| Powered by | Apache Yetus 0.7.0-SNAPSHOT   http://yetus.apache.org |


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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