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Hadoop QA commented on HDFS-5754: --------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12623435/HDFS-5754.003.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 1 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. The javadoc tool did not generate any warning messages. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:red}-1 core tests{color}. The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs: org.apache.hadoop.hdfs.web.TestHttpsFileSystem {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/5900//testReport/ Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5900//console This message is automatically generated. > Split LayoutVerion into NamenodeLayoutVersion and DatanodeLayoutVersion > ------------------------------------------------------------------------ > > Key: HDFS-5754 > URL: https://issues.apache.org/jira/browse/HDFS-5754 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode, namenode > Reporter: Tsz Wo (Nicholas), SZE > Assignee: Brandon Li > Attachments: HDFS-5754.001.patch, HDFS-5754.002.patch, > HDFS-5754.003.patch > > > Currently, LayoutVersion defines the on-disk data format and supported > features of the entire cluster including NN and DNs. LayoutVersion is > persisted in both NN and DNs. When a NN/DN starts up, it checks its > supported LayoutVersion against the on-disk LayoutVersion. Also, a DN with a > different LayoutVersion than NN cannot register with the NN. > We propose to split LayoutVersion into two independent values that are local > to the nodes: > - NamenodeLayoutVersion - defines the on-disk data format in NN, including > the format of FSImage, editlog and the directory structure. > - DatanodeLayoutVersion - defines the on-disk data format in DN, including > the format of block data file, metadata file, block pool layout, and the > directory structure. > The LayoutVersion check will be removed in DN registration. If > NamenodeLayoutVersion or DatanodeLayoutVersion is changed in a rolling > upgrade, then only rollback is supported and downgrade is not. -- This message was sent by Atlassian JIRA (v6.1.5#6160)