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https://issues.apache.org/jira/browse/HDFS-11712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16450639#comment-16450639
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Hudson commented on HDFS-11712:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14057 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14057/])
HDFS-11712. Ozone: Reuse ObjectMapper instance to improve the (aengineer: rev
167ab4df0def3fa1d8a45a674e295fd77ba7ab6a)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/exceptions/OzoneException.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/response/ListVolumes.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/response/VolumeInfo.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/response/ListBuckets.java
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/utils/package-info.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/bucket/InfoBucketHandler.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/volume/CreateVolumeHandler.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/bucket/ListBucketHandler.java
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/utils/JsonUtils.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/response/ListKeys.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/volume/ListVolumeHandler.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/response/BucketInfo.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/bucket/CreateBucketHandler.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/response/KeyInfo.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/volume/InfoVolumeHandler.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/bucket/UpdateBucketHandler.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/ozone/web/ozShell/keys/ListKeyHandler.java
> Ozone: Reuse ObjectMapper instance to improve the performance
> -------------------------------------------------------------
>
> Key: HDFS-11712
> URL: https://issues.apache.org/jira/browse/HDFS-11712
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Priority: Major
> Fix For: HDFS-7240
>
> Attachments: HDFS-11712-HDFS-7240.001.patch,
> HDFS-11712-HDFS-7240.002.patch, HDFS-11712-HDFS-7240.003.patch
>
>
> In the ozone, there are many places using {{ObjectMapper}} to do the
> object-json transformation. From the page of {{ObjectMapper}}
> (https://github.com/FasterXML/jackson-docs/wiki/Presentation:-Jackson-Performance),
> {{ObjectMapper}} is a heavy-weight object, it not a good bevahiour to
> create this instance everywhere.
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