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https://issues.apache.org/jira/browse/HDFS-1276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13465603#comment-13465603
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Bertrand Dechoux commented on HDFS-1276:
One question about the need :
* Wouldn't it be possible to have the same as the HDFS web interface ie the
list of namenode storage and their status? If I understand correctly, this
patch will display (if any) failed volumes of datanode (and maybe namenode).
Second, about the patch :
* use instead of new String[0]
* The comment or the code about parsing the error message is wrong
= the error message is : DataNode failed
volumes:failed_volume;failed_volume...
= but the code split twice on ':', shouldn't it be first on ':' and then on
';' ?
* Isn't that a very fragile way of reporting error? People might use (and so
will use) the report output to do monitoring.
Add failed volume info to dfsadmin report
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Key: HDFS-1276
URL: https://issues.apache.org/jira/browse/HDFS-1276
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 0.21.0
Reporter: Jeff Zhang
Assignee: Jeff Zhang
Priority: Minor
Attachments: HDFS_1276.patch
Currently, users do not know which volumes are failed unless he looks into
the logs, this way is not convenient for users. I plan to put the failed
volumes in the report of HDFS. Then hdfs administers can use command
bin/hadoop dfsadmin -report to find which volumes are failed.
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