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[HDFS-7384] 'getfacl' command and 'getAclStatus' output should be in sync - HDFS - [issue]
...getfacl command will print all the entries including basic and extended entries, mask entries and effective permissions.But, getAclStatus FileSystem API will return only extended ACL entries...
http://issues.apache.org/jira/browse/HDFS-7384    Author: Vinayakumar B, 2014-12-09, 17:28
[HDFS-7454] Reduce memory footprint for AclEntries in NameNode - HDFS - [issue]
...HDFS-5620 indicated a GlobalAclSet containing unique AclFeature can be de-duplicated to save the memory in NameNode. However it was not implemented at that time.This Jira re-proposes same im...
http://issues.apache.org/jira/browse/HDFS-7454    Author: Vinayakumar B, 2014-12-05, 17:22
[HDFS-6114] Block Scan log rolling will never happen if blocks written continuously leading to huge size of dncp_block_verification.log.curr - HDFS - [issue]
...1. BlockPoolSliceScanner#scan() will not return until all the blocks are scanned. 2. If the blocks (with size in several MBs) to datanode are written continuously then one iteration of Block...
http://issues.apache.org/jira/browse/HDFS-6114    Author: Vinayakumar B, 2014-12-01, 03:11
[HDFS-5146] JspHelper#bestNode() doesn't handle bad datanodes correctly - HDFS - [issue]
...JspHelper#bestNode() doesn't handle correctly if the chosen datanode is down.    while (s == null) {      if (chosenNode == null) {     &nbs...
http://issues.apache.org/jira/browse/HDFS-5146    Author: Vinayakumar B, 2014-11-25, 08:03
Clarification related to ACL with setPermission - HDFS - [mail # dev]
...Hi,Here is the scenario.1. owner : *user1, *ownerGroup: *group1**2. /dir *have permissions set 700 (rwx------) using setPermission().3. Now another Named group ACL has been set to allow acce...
   Author: Vinayakumar B, 2014-11-11, 18:28
Why Mover moves only one replica in one iteration ? - HDFS - [mail # dev]
...Hi,Why we cant schedule all replica's movement together in one iteration.?I have seen while executing test, it needs one iteration to schedulemovement of each replica of a block from one sto...
   Author: Vinayakumar B, 2014-10-31, 14:33
[HDFS-6995] Block should be placed in the client's 'rack-local' node if 'client-local' node is not available - HDFS - [issue]
...HDFS cluster is rack aware.Client is in different node than of datanode,but Same rack contains one or more datanodes.In this case first preference should be given to select 'rack-local' node...
http://issues.apache.org/jira/browse/HDFS-6995    Author: Vinayakumar B, 2014-10-28, 04:39
Re: Issue with DN and NN connection. - HDFS - [mail # dev]
...Hi Surendra,Since, both public and private IPs are in same subnet, DN machien choosingpublic interface to connect to NN, for which no mapping present in NNmachine.Separate your IPs to differ...
   Author: Vinayakumar B, 2014-09-22, 10:49
[expand - 4 more] - Re: [DISCUSS] Allow continue reading from being-written file using same stream - HDFS - [mail # dev]
...Yes stack..Regards,VinayOn Sep 20, 2014 1:03 AM, "Stack"  wrote: ...
   Author: Vinayakumar B, 2014-09-20, 07:12
Re: [VOTE] Merge HDFS-6584 Archival Storage to trunk - HDFS - [mail # dev]
...I have closely observed all work done in this. This featute is veryimportant for the storage only problems.Major work done by Nicholas and later Jing.Thanks to everyone who has participated ...
   Author: Vinayakumar B, 2014-09-08, 03:09
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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