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https://issues.apache.org/jira/browse/HDFS-2720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175371#comment-13175371
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Uma Maheswara Rao G commented on HDFS-2720:
-------------------------------------------
Trace:
java.io.IOException: The process cannot access the file because another process
has locked a portion of the file
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:177)
at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:75)
at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:49)
at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:95)
at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:338)
at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:329)
at
org.apache.hadoop.hdfs.MiniDFSCluster.copyNameDirs(MiniDFSCluster.java:671)
at
org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:616)
at
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:542)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:274)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:263)
at
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:256)
at
org.apache.hadoop.hdfs.server.namenode.ha.TestStandbyIsHot.testStandbyIsHot
Other HA related tests also fails with the same reason.
> HA : TestStandbyIsHot is failing while copying in_use.lock file from NN1 to
> NN2
> --------------------------------------------------------------------------------
>
> Key: HDFS-2720
> URL: https://issues.apache.org/jira/browse/HDFS-2720
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, test
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
>
> To maintain the clusterID same , we are copying the namespaceDirs from 1st NN
> to other NNs.
> While copying this files, in_use.lock file may not allow to copy in all the
> OSs since it has aquired the lock on it.
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