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[HDFS-8130] Erasure Coding: DN should report its CPU cores and other info to NN for better EC task assignments - HDFS - [issue]
...DataNode should report CPU cores and other information to Namenode. NN can utilize this info for making better EC task assignment decisions....
http://issues.apache.org/jira/browse/HDFS-8130    Author: Uma Maheswara Rao G, 2015-04-12, 18:31
[HDFS-7350] WebHDFS: Support EC commands through webhdfs - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-7350    Author: Uma Maheswara Rao G, 2015-03-25, 12:53
[HDFS-4516] Client crash after block allocation and NN switch before lease recovery for the same file can cause readers to fail forever - HDFS - [issue]
...If client crashes just after allocating block( blocks not yet created in DNs) and NN also switched after this, then new Namenode will not know about locs.Further details will be in comment....
http://issues.apache.org/jira/browse/HDFS-4516    Author: Uma Maheswara Rao G, 2015-03-13, 02:57
[HDFS-2712] setTimes should support only for files and move the atime field down to iNodeFile. - HDFS - [issue]
...After the dicussion in HDFS-2436, unsupported behaviour for setTimes was intentional (HADOOP-1869).But current INode structure hierarchy seems, it supports atime for directories also. But as...
http://issues.apache.org/jira/browse/HDFS-2712    Author: Uma Maheswara Rao G, 2015-03-10, 04:59
[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
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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