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Hadoop QA commented on HDFS-457: -------------------------------- -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12413868/HDFS-457.patch against trunk revision 794953. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 7 new or modified tests. -1 javadoc. The javadoc tool appears to have generated 1 warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. -1 findbugs. The patch appears to introduce 1 new Findbugs warnings. -1 release audit. The applied patch generated 285 release audit warnings (more than the trunk's current 282 warnings). -1 core tests. The patch failed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-vesta.apache.org/23/testReport/ Release audit warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-vesta.apache.org/23/artifact/trunk/current/releaseAuditDiffWarnings.txt Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-vesta.apache.org/23/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-vesta.apache.org/23/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-vesta.apache.org/23/console This message is automatically generated. > better handling of volume failure in Data Node storage > ------------------------------------------------------ > > Key: HDFS-457 > URL: https://issues.apache.org/jira/browse/HDFS-457 > Project: Hadoop HDFS > Issue Type: Bug > Components: data-node > Reporter: Boris Shkolnik > Assignee: Boris Shkolnik > Attachments: HDFS-457.patch > > > Current implementation shuts DataNode down completely when one of the > configured volumes of the storage fails. > This is rather wasteful behavior because it decreases utilization (good > storage becomes unavailable) and imposes extra load on the system > (replication of the blocks from the good volumes). These problems will become > even more prominent when we move to mixed (heterogeneous) clusters with many > more volumes per Data Node. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.