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[HDFS-7454] Implement Global ACL Set for memory optimization 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, 2014-11-28, 19:39
[HDFS-7210] Avoid two separate RPC's namenode.append() and namenode.getFileInfo() for an append call from DFSClient - HDFS - [issue]
...Currently DFSClient does 2 RPCs to namenode for an append operation.append() for re-opening the file and getting the last block, getFileInfo() Another on to get HdfsFileStateIf we can combin...
http://issues.apache.org/jira/browse/HDFS-7210    Author: Vinayakumar B, 2014-11-28, 16:04
[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, 2014-11-27, 16:19
[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
[HDFS-7410] Support CreateFlags with append() to support hsync() for appending streams - HDFS - [issue]
...Current FileSystem APIs include CreateFlag only for the create() api, and some of these (SYNC_BLOCK) are for only client side and will not be stored in metadata of the file. So append() oper...
http://issues.apache.org/jira/browse/HDFS-7410    Author: Vinayakumar B, 2014-11-25, 06:25
[HDFS-7349] Support DFS command for the EC encoding - HDFS - [issue]
...Support implementation of the following commandshdfs dfs -convertToEC <path>   <path>: Converts all blocks under this path to EC form (if not already in EC form, and if...
http://issues.apache.org/jira/browse/HDFS-7349    Author: Vinayakumar B, 2014-11-18, 12:47
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
[HDFS-7368] Support HDFS specific 'shell' on command 'hdfs dfs' invocation - HDFS - [issue]
...hadoop fs is the generic implementation for all filesystem implementations, but some of the operations are supported only in some filesystems. Ex: snapshot commands, acl commands, xattr comm...
http://issues.apache.org/jira/browse/HDFS-7368    Author: Vinayakumar B, 2014-11-06, 13:27
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
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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