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[HDFS-6829] DFSAdmin refreshSuperUserGroupsConfiguration failed in security cluster - HDFS - [issue]
...When we run command "hadoop dfsadmin -refreshSuperUserGroupsConfiguration", it failed and report below message:14/08/05 21:32:06 WARN security.MultiRealmUserAuthentication: The serverPrincip...
http://issues.apache.org/jira/browse/HDFS-6829    Author: zhaoyunjiong, 2014-09-03, 20:50
[HDFS-6616] bestNode shouldn't always return the first DataNode - HDFS - [issue]
...When we are doing distcp between clusters, job failed:014-06-30 20:56:28,430 INFO org.apache.hadoop.tools.DistCp: FAIL part-r-00101.avro : java.net.NoRouteToHostException: No route to host a...
http://issues.apache.org/jira/browse/HDFS-6616    Author: zhaoyunjiong, 2014-07-19, 15:59
[HDFS-6133] Make Balancer support exclude specified path - HDFS - [issue]
...Currently, run Balancer will destroying Regionserver's data locality.If getBlocks could exclude blocks belongs to files which have specific path prefix, like "/hbase", then we can run Balanc...
http://issues.apache.org/jira/browse/HDFS-6133    Author: zhaoyunjiong, 2014-07-03, 03:16
[HDFS-6228] comments typo fix for FsDatasetImpl.java - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-6228    Author: zhaoyunjiong, 2014-04-10, 20:08
[HDFS-5396] FSImage.getFsImageName should check whether fsimage exists - HDFS - [issue]
...In https://issues.apache.org/jira/browse/HDFS-5367, fsimage may not write to all IMAGE dir, so we need to check whether fsimage exists before FSImage.getFsImageName returned....
http://issues.apache.org/jira/browse/HDFS-5396    Author: zhaoyunjiong, 2014-03-18, 08:24
[HDFS-5944] LeaseManager:findLeaseWithPrefixPath can't handle path like /a/b/ right and cause SecondaryNameNode failed do checkpoint - HDFS - [issue]
...In our cluster, we encountered error like this:java.io.IOException: saveLeases found path /XXX/20140206/04_30/_SUCCESS.slc.log but is not under construction. at org.apache.hadoop.hdfs.server...
http://issues.apache.org/jira/browse/HDFS-5944    Author: zhaoyunjiong, 2014-03-11, 21:28
[HDFS-5579] Under construction files make DataNode decommission take very long hours - HDFS - [issue]
...We noticed that some times decommission DataNodes takes very long time, even exceeds 100 hours.After check the code, I found that in BlockManager:computeReplicationWorkForBlocks(List<List...
http://issues.apache.org/jira/browse/HDFS-5579    Author: zhaoyunjiong, 2014-02-24, 20:58
[HDFS-5367] Restoring namenode storage locks namenode due to unnecessary fsimage write - HDFS - [issue]
...Our cluster have 40G fsimage, we write one copy of edit log to NFS.After NFS temporary failed, when doing checkpoint, NameNode try to recover it, and it will save 40G fsimage to NFS, it take...
http://issues.apache.org/jira/browse/HDFS-5367    Author: zhaoyunjiong, 2013-10-21, 09:21
[HDFS-5247] Namenode should close editlog and unlock storage when removing failed storage dir - HDFS - [issue]
...When one of dfs.name.dir failed, namenode didn't close editlog and unlock the storage:java    24764 hadoop   78uW  REG 252,32        0 393219 /volume1...
http://issues.apache.org/jira/browse/HDFS-5247    Author: zhaoyunjiong, 2013-10-16, 18:45
[HDFS-5028] LeaseRenewer throw java.util.ConcurrentModificationException when timeout - HDFS - [issue]
...In LeaseRenewer, when renew() throw SocketTimeoutException, c.abort() will remove one dfsclient from dfsclients. Here will throw a ConcurrentModificationException because dfsclients changed ...
http://issues.apache.org/jira/browse/HDFS-5028    Author: zhaoyunjiong, 2013-09-25, 00:33
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