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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10312) Large block reports may fail to decode at NameNode due to 64 MB protobuf maximum length restriction.
Date Tue, 19 Apr 2016 23:39:25 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15248935#comment-15248935
] 

Hadoop QA commented on HDFS-10312:
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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 15s {color} | {color:red}
HDFS-10312 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 Patch URL | https://issues.apache.org/jira/secure/attachment/12799625/test-delta.patch
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| JIRA Issue | HDFS-10312 |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/15207/console |
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> Large block reports may fail to decode at NameNode due to 64 MB protobuf maximum length
restriction.
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-10312
>                 URL: https://issues.apache.org/jira/browse/HDFS-10312
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-10312.001.patch, HDFS-10312.002.patch, HDFS-10312.003.patch,
HDFS-10312.004.patch, test-delta.patch
>
>
> Our RPC server caps the maximum size of incoming messages at 64 MB by default.  For exceptional
circumstances, this can be uptuned using {{ipc.maximum.data.length}}.  However, for block
reports, there is still an internal maximum length restriction of 64 MB enforced by protobuf.
 (Sample stack trace to follow in comments.)  This issue proposes to apply the same override
to our block list decoding, so that large block reports can proceed.



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