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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14901) ReuseObjectMapper in Hadoop Common
Date Fri, 22 Sep 2017 23:17:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16177313#comment-16177313
] 

Hudson commented on HADOOP-14901:
---------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #12953 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/12953/])
HADOOP-14901. ReuseObjectMapper in Hadoop Common. Contributed by Hanisha (aengineer: rev e1b32e0959dea5f5a40055157476f9320519a618)
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/log/Log4Json.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/HttpExceptionUtils.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/KMSClientProvider.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/DecayRpcScheduler.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/MetricsJsonBuilder.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticator.java


> 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
>
>
> 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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