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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (Jira)" <ji...@apache.org> on 2019/09/07 08:33:00 UTC
[jira] [Commented] (MAPREDUCE-7167) Extra LF ("\n") pushed directly
to storage
[ https://issues.apache.org/jira/browse/MAPREDUCE-7167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16924772#comment-16924772 ]
Hadoop QA commented on MAPREDUCE-7167:
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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 8s{color} | {color:red} MAPREDUCE-7167 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 | MAPREDUCE-7167 |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7663/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> Extra LF ("\n") pushed directly to storage
> ------------------------------------------
>
> Key: MAPREDUCE-7167
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7167
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 3.2.0
> Reporter: Saurabh
> Assignee: Saurabh
> Priority: Major
> Attachments: image-2018-11-28-19-23-52-972.png, image-2018-11-29-14-53-58-176.png, image-2018-11-29-14-54-28-254.png, nremoved.txt, nremoved.txt, patch1128.patch, patch1128.patch, patch1128trunk.patch, withn.txt, withn.txt
>
>
> JsonEncoder already adds the necessary newline after writing each object as per [this| [https://github.com/apache/avro/blob/39ec1a3f0addfce06869f705f7a17c03d538fe16/lang/java/avro/src/main/java/org/apache/avro/io/JsonEncoder.java#L77] ] so this patch removes the "out.writeBytes("\n");". As the encoder is buffered, the out.writeBytes can cause JSON errors in the output stream as it directly writes to the output stream, hence it must be removed.
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