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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10694) Remove synchronized input streams from Writable deserialization
Date Tue, 03 May 2016 15:21:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15268870#comment-15268870
] 

Hadoop QA commented on HADOOP-10694:
------------------------------------

| (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 28s {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} 10m 11s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 12m 2s {color} |
{color:green} trunk passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 9m 42s {color} |
{color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 26s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 23s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 19s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 1s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 24s {color} |
{color:green} trunk passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 32s {color} |
{color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 0s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 11m 55s {color} |
{color:green} the patch passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 11m 55s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 10m 12s {color} |
{color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 10m 12s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 26s {color}
| {color:green} hadoop-common-project/hadoop-common: The patch generated 0 new + 2 unchanged
- 3 fixed = 2 total (was 5) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 20s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 18s {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} 2m 23s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 32s {color} |
{color:green} the patch passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 32s {color} |
{color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 10m 18s {color} | {color:red}
hadoop-common in the patch failed with JDK v1.8.0_92. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 9m 38s {color} | {color:red}
hadoop-common in the patch failed with JDK v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 24s {color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 92m 1s {color} | {color:black}
{color} |
\\
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|| Reason || Tests ||
| JDK v1.8.0_92 Failed junit tests | hadoop.net.TestDNS |
| JDK v1.7.0_95 Failed junit tests | hadoop.security.ssl.TestReloadingX509TrustManager |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:cf2ee45 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12801942/HADOOP-10694.2.patch
|
| JIRA Issue | HADOOP-10694 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 7ae861852d66 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 / 06413da |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_92 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95
|
| findbugs | v3.0.0 |
| unit | https://builds.apache.org/job/PreCommit-HADOOP-Build/9258/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.8.0_92.txt
|
| unit | https://builds.apache.org/job/PreCommit-HADOOP-Build/9258/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_95.txt
|
| unit test logs |  https://builds.apache.org/job/PreCommit-HADOOP-Build/9258/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.8.0_92.txt
https://builds.apache.org/job/PreCommit-HADOOP-Build/9258/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_95.txt
|
| JDK v1.7.0_95  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/9258/testReport/
|
| modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
|
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/9258/console |
| Powered by | Apache Yetus 0.3.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Remove synchronized input streams from Writable deserialization
> ---------------------------------------------------------------
>
>                 Key: HADOOP-10694
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10694
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>            Reporter: Gopal V
>            Assignee: Gopal V
>              Labels: BB2015-05-TBR
>         Attachments: HADOOP-10694.1.patch, HADOOP-10694.2.patch, writable-read-sync.png
>
>
> Writable deserialization is slowing down due to a synchronized block within DataInputBuffer$Buffer.
> ByteArrayInputStream::read() is synchronized and this shows up as a slow uncontested
lock.
> Hive ships with its own faster thread-unsafe version with hive.common.io.NonSyncByteArrayInputStream.
> !writable-read-sync.png!
> The DataInputBuffer and Writable deserialization should not require a lock per readInt()/read().



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