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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14901) ReuseObjectMapper in Hadoop Common
Date Sat, 23 Sep 2017 00:18:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16177370#comment-16177370
] 

Hadoop QA commented on HADOOP-14901:
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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}  0m 18s{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: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:brown} branch-2 Compile Tests {color} ||
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  4m 12s{color} | {color:red}
root in branch-2 failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  3m 37s{color} | {color:red}
root in branch-2 failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 25s{color}
| {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 58s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 39s{color} |
{color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 50s{color} |
{color:green} branch-2 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 23s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 37s{color} | {color:red}
root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 37s{color} | {color:red}
root in the patch failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 24s{color}
| {color:green} hadoop-common-project/hadoop-common: The patch generated 0 new + 52 unchanged
- 1 fixed = 52 total (was 53) {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m 25s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  0s{color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 22s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 48s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m 23s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 17s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 17m  0s{color} | {color:black}
{color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:eaf5c66 |
| JIRA Issue | HADOOP-14901 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12888607/HADOOP-14901-branch-2.001.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 12b4b4815f4a 3.13.0-117-generic #164-Ubuntu SMP Fri Apr 7 11:05:26 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | branch-2 / de1d747 |
| Default Java | 1.7.0_151 |
| mvninstall | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/branch-mvninstall-root.txt
|
| compile | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/branch-compile-root.txt
|
| findbugs | v3.0.0 |
| mvninstall | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/patch-mvninstall-hadoop-common-project_hadoop-common.txt
|
| compile | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/patch-compile-root.txt
|
| javac | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/patch-compile-root.txt
|
| mvnsite | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/patch-mvnsite-hadoop-common-project_hadoop-common.txt
|
| findbugs | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/patch-findbugs-hadoop-common-project_hadoop-common.txt
|
| unit | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
|
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/13366/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> ReuseObjectMapper in Hadoop Common
> ----------------------------------
>
>                 Key: HADOOP-14901
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14901
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>            Priority: Minor
>         Attachments: HADOOP-14901.001.patch, HADOOP-14901-branch-2.001.patch
>
>
> It is recommended to reuse ObjectMapper, if possible, for better performance. We can
aslo use ObjectReader or ObjectWriter to replace the ObjectMapper in some places: they are
straightforward and thread safe.



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