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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11712) Ozone: Reuse ObjectMapper instance to improve the performance
Date Fri, 28 Apr 2017 10:55:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988630#comment-15988630
] 

Hadoop QA commented on HDFS-11712:
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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 12s{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} 14m 29s{color}
| {color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 49s{color} |
{color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 37s{color}
| {color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 55s{color} |
{color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 16s{color}
| {color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 56s{color} |
{color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 49s{color} |
{color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 52s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 47s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 47s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 34s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 53s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 12s{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  4s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 48s{color} |
{color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 67m 43s{color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 20s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 95m 34s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting |
|   | hadoop.cblock.TestCBlockCLI |
|   | hadoop.hdfs.TestDFSUpgradeFromImage |
|   | hadoop.hdfs.server.namenode.ha.TestPipelinesFailover |
|   | hadoop.hdfs.server.namenode.ha.TestDFSUpgradeWithHA |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:612578f |
| JIRA Issue | HDFS-11712 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12865503/HDFS-11712-HDFS-7240.003.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 440ff23dbf5c 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6 15:44:32 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | HDFS-7240 / 50dd3a5 |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/19229/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/19229/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/19229/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> 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
>         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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