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https://issues.apache.org/jira/browse/HDFS-2512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141125#comment-13141125
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Hudson commented on HDFS-2512:
------------------------------
Integrated in Hadoop-Hdfs-trunk #850 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/850/])
HDFS-2512. Add textual error message to data transfer protocol responses.
Contributed by Todd Lipcon.
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1195693
Files :
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/proto/DataTransferProtos.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/Balancer.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiver.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/proto/datatransfer.proto
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDataTransferProtocol.java
> Add textual error message to data transfer protocol responses
> -------------------------------------------------------------
>
> Key: HDFS-2512
> URL: https://issues.apache.org/jira/browse/HDFS-2512
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node, hdfs client
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.23.0
>
> Attachments: hdfs-2512.txt
>
>
> Currently, the error response code from the DN has very little extra info. I
> had a situation the other day where the balancer was failing to move blocks,
> but just reported back "error moving block", which didn't help much. We can
> easily add a "message" field to OpBlockResponseProto to communicate back the
> underlying issue (in this case, it was thread quota exceeded)
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