[ https://issues.apache.org/jira/browse/HDFS-1362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12996805#comment-12996805 ]
Hadoop QA commented on HDFS-1362: --------------------------------- -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12471190/HDFS-1362.7.patch against trunk revision 1072023. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 4 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed these core unit tests: org.apache.hadoop.hdfs.TestFileConcurrentReader org.apache.hadoop.hdfs.TestLargeBlock -1 contrib tests. The patch failed contrib unit tests. +1 system test framework. The patch passed system test framework compile. Test results: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/188//testReport/ Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/188//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/188//console This message is automatically generated. > Provide volume management functionality for DataNode > ---------------------------------------------------- > > Key: HDFS-1362 > URL: https://issues.apache.org/jira/browse/HDFS-1362 > Project: Hadoop HDFS > Issue Type: New Feature > Components: data-node > Affects Versions: 0.23.0 > Reporter: Wang Xu > Assignee: Wang Xu > Fix For: 0.23.0 > > Attachments: DataNode Volume Refreshment in HDFS-1362.pdf, > HDFS-1362.4_w7001.txt, HDFS-1362.5.patch, HDFS-1362.6.patch, > HDFS-1362.7.patch, HDFS-1362.txt, Provide_volume_management_for_DN_v1.pdf > > > The current management unit in Hadoop is a node, i.e. if a node failed, it > will be kicked out and all the data on the node will be replicated. > As almost all SATA controller support hotplug, we add a new command line > interface to datanode, thus it can list, add or remove a volume online, which > means we can change a disk without node decommission. Moreover, if the failed > disk still readable and the node has enouth space, it can migrate data on the > disks to other disks in the same node. > A more detailed design document will be attached. > The original version in our lab is implemented against 0.20 datanode > directly, and is it better to implemented it in contrib? Or any other > suggestion? -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira