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[HDFS-5998] TestHDFSCLI tests will fail if machine user names are not the combination of alphanumeric - HDFS - [issue]
...From my jenkins results, I have seen the following failures Testing mode: test2014-02-21 19:45:07,448 INFO  cli.CLITestHelper (CLITestHelper.java:displayResults(212)) - 2014-02-21 ...
http://issues.apache.org/jira/browse/HDFS-5998    Author: Uma Maheswara Rao G, 2015-02-09, 19:27
[HDFS-2628] Remove Mapred filenames from HDFS findbugsExcludeFile.xml file - HDFS - [issue]
...Mapreduce filesnames are there in hadoop-hdfs-project\hadoop-hdfs\dev-support\findbugsExcludeFile.xmlis it intentional? i think we should remove them from HDFS.Exampl:  <!--&nbs...
http://issues.apache.org/jira/browse/HDFS-2628    Author: Uma Maheswara Rao G, 2015-02-07, 03:22
[HDFS-7594] Add isFileClosed and IsInSafeMode APIs in o.a.h.hdfs.client.HdfsAdmin - HDFS - [issue]
...DistributedFileSystem has exposed isFileClosed and IsInSafeMode.Applications like Hbase are using this apis directly from DistributedFileSystem class. Now HdfsAdmin public class added and on...
http://issues.apache.org/jira/browse/HDFS-7594    Author: Uma Maheswara Rao G, 2015-01-21, 16:52
[HDFS-7352] Common side changes for HDFS Erasure coding support - HDFS - [issue]
...This is umbrella JIRA for tracking the common side changes for HDFS Erasure Coding support,...
http://issues.apache.org/jira/browse/HDFS-7352    Author: Uma Maheswara Rao G, 2014-11-04, 12:51
[HDFS-7351] Document the HDFS Erasure Coding feature - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-7351    Author: Uma Maheswara Rao G, 2014-11-04, 12:41
[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
Re: [VOTE] Merge fs-encryption branch to trunk - HDFS - [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
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB