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[HDFS-2975] Rename with overwrite flag true can make NameNode to stuck in safemode on NN (crash + restart). - HDFS - [issue]
...When we rename the file with overwrite flag as true, it will delete the destination file blocks. After deleting the blocks, whenever it releases the fsNameSystem lock, NN can give the invali...
http://issues.apache.org/jira/browse/HDFS-2975    Author: Uma Maheswara Rao G, 2014-09-04, 17:37
[HDFS-2815] Namenode is not coming out of safemode when we perform ( NN crash + restart ) .  Also FSCK report shows blocks missed. - HDFS - [issue]
...When tested the HA(internal) with continuous switch with some 5mins gap, found some blocks missed and namenode went into safemode after next switch.   After the analysis, i found t...
http://issues.apache.org/jira/browse/HDFS-2815    Author: Uma Maheswara Rao G, 2014-09-04, 02:04
[HDFS-2330] In NNStorage.java, IOExceptions of stream closures  can mask root exceptions. - HDFS - [issue]
...In NNStorage.java:  There are many stream closures in finally block.   There is a chance that they can mask the root exceptions.So, better to follow the pattern like belo...
http://issues.apache.org/jira/browse/HDFS-2330    Author: Uma Maheswara Rao G, 2014-09-04, 01:59
[HADOOP-10561] Copy command with preserve option should handle Xattrs - Hadoop - [issue]
...The design docs for Xattrs stated that we handle preserve options with copy commandsFrom doc:Preserve option of commands like “cp -p” shell command and “distcp -p” should work on XAttrs. In ...
http://issues.apache.org/jira/browse/HADOOP-10561    Author: Uma Maheswara Rao G, 2014-09-03, 21:36
[MAPREDUCE-5920] Add Xattr option in DistCp docs - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5920    Author: Uma Maheswara Rao G, 2014-09-03, 21:33
[MAPREDUCE-5898] distcp to support preserving HDFS extended attributes(XAttrs) - MapReduce - [issue]
...This JIRA to track the distcp support to handle the Xattrs with preserving options.Add new command line argument to support that....
http://issues.apache.org/jira/browse/MAPREDUCE-5898    Author: Uma Maheswara Rao G, 2014-08-15, 06:47
[HADOOP-10514] Common side changes to support  HDFS extended attributes (HDFS-2006) - Hadoop - [issue]
...This is an umbrella issue for tracking all Hadoop Common changes required to support HDFS extended attributes implementation...
http://issues.apache.org/jira/browse/HADOOP-10514    Author: Uma Maheswara Rao G, 2014-08-15, 06:39
[expand - 1 more] - Re: [VOTE] Merge fs-encryption branch to trunk - Hadoop - [mail # dev]
...Nice work guys!+1 for merge.Regards,UmaOn Sat, Aug 9, 2014 at 12:15 AM, Andrew Wang wrote: ...
   Author: Uma Maheswara Rao G, 2014-08-10, 03:05
[HDFS-6834] Improve the configuration guidance in DFSClient when there are no Codec classes found in configs - HDFS - [issue]
...This is the comment in HADOOP-10886 from Andrew....
http://issues.apache.org/jira/browse/HDFS-6834    Author: Uma Maheswara Rao G, 2014-08-08, 12:36
[HADOOP-10886] CryptoCodec#getCodecclasses throws NPE when configurations not loaded. - Hadoop - [issue]
...There are some test cases which will not load the xml defaults. In this case, CryptoCodec#getCodecclasses will fail with NPE.java.lang.NullPointerException: null       &n...
http://issues.apache.org/jira/browse/HADOOP-10886    Author: Uma Maheswara Rao G, 2014-08-05, 22:25
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