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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10766) Exceptions thrown by requestShortCircuitFdsForRead can be lost
Date Sun, 21 Aug 2016 19:28:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15429861#comment-15429861
] 

Hadoop QA commented on HDFS-10766:
----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 25s{color} | {color:blue}
Docker mode activated. {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:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  0s{color} | {color:red}
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. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m  4s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 50s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 29s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 56s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 14s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 44s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 58s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 50s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 48s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 48s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 27s{color}
| {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch generated 1 new + 58 unchanged
- 0 fixed = 59 total (was 58) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 52s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m  9s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  0s{color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 52s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 53s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 79m  9s{color} | {color:green}
hadoop-hdfs in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 21s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 99m 20s{color} | {color:black}
{color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:9560f25 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12824740/HDFS-10766-2.patch
|
| JIRA Issue | HDFS-10766 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux ce493ef56619 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 |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 115ecb5 |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/16490/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/16490/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/16490/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Exceptions thrown by requestShortCircuitFdsForRead can be lost
> --------------------------------------------------------------
>
>                 Key: HDFS-10766
>                 URL: https://issues.apache.org/jira/browse/HDFS-10766
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: logging
>         Environment: HDP-2.4
>            Reporter: Karthik Palanisamy
>            Assignee: Karthik Palanisamy
>            Priority: Minor
>              Labels: patch
>         Attachments: HDFS-10766-1.patch, HDFS-10766-2.patch
>
>
> There was some error while creating requestShortCircuitFdsForRead and the exception is
thrown when logging the info message
> {quote}
> In this scenario, the actual exception was lost
> {quote}
> To get the actual exception message it needs to be handled properly.
> 2016-07-25 13:11:54,323 ERROR datanode.DataNode (DataXceiver.java:run(278)) - xyz.com:50010:DataXceiver
error processing REQUEST_SHORT_CIRCUIT_FDS operation src: unix:/var/lib/hadoop-hdfs/dn_socket
dst: <local> 
> org.apache.hadoop.fs.InvalidRequestException: there is no shared memory segment registered
with shmId 0773fa8b13b4643cb5be98893af5a873
> at org.apache.hadoop.hdfs.server.datanode.ShortCircuitRegistry.unregisterSlot(ShortCircuitRegistry.java:371)

> at org.apache.hadoop.hdfs.server.datanode.DataXceiver.requestShortCircuitFds(DataXceiver.java:364)

> at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opRequestShortCircuitFds(Receiver.java:187)

> at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:89)

> at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:251) 
> at java.lang.Thread.run(Thread.java:745) 



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