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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14901) ReuseObjectMapper in Hadoop Common
Date Fri, 22 Sep 2017 23:44:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16177342#comment-16177342
] 

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  0s{color} | {color:blue}
Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  4s{color} | {color:red}
HADOOP-14901 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HADOOP-14901 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12888604/HADOOP-14901-brnach-2.001.patch
|
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/13365/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-brnach-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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