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[HDFS-346] Version file in name-node image directory should include "role" field. - HDFS - [issue]
...It would be useful to have name-node role field in the VERSION file in name-node's image and edits directories so that one could see what type of node created the image. Role was introduced ...
http://issues.apache.org/jira/browse/HDFS-346    Author: Konstantin Shvachko, 2014-07-21, 22:58
[HDFS-333] A State Machine for name-node blocks. - HDFS - [issue]
...Blocks on the name-node can belong to different collections like the blocksMap, under-replicated, over-replicated lists, etc.It is getting more and more complicated to keep the lists consist...
http://issues.apache.org/jira/browse/HDFS-333    Author: Konstantin Shvachko, 2014-07-21, 21:46
[HDFS-293] Remove code related to conversion of name-node and data-node storage directories to the format introduced in hadoop 0.13 - HDFS - [issue]
...Hadoop 0.18 does not support direct HDFS upgrades from versions 0.13 or earlier as stated in HADOOP-2797.A 2 step upgrade is required in this case first from 0.x <= 0.13 to one of version...
http://issues.apache.org/jira/browse/HDFS-293    Author: Konstantin Shvachko, 2014-07-18, 06:39
[HDFS-171] Redundant error logging in FSNamesystem. - HDFS - [issue]
...HADOOP-3509 introduced a new error message which is logged if FSNamesystem fails to initialize. This message turned out to be redundant, because it should and is logged further up the stack ...
http://issues.apache.org/jira/browse/HDFS-171    Author: Konstantin Shvachko, 2014-07-18, 06:32
[HDFS-80] Rename of a directory with many opened files blocks name-node for a long time. changeLease() to blame. - HDFS - [issue]
...I am creating a directory containing 200,000 files, and then renaming it.The rename operation is twice as long as the the total time for creating all those files.The worst thing is that the ...
http://issues.apache.org/jira/browse/HDFS-80    Author: Konstantin Shvachko, 2014-07-18, 06:28
[HDFS-337] Name collision for AccessControlException. - HDFS - [issue]
...There is a name collision in org.apache.hadoop.fs.permission.AccessControlException and java.security.AccessControlException.Since  java.security.AccessControlException is not an IOExce...
http://issues.apache.org/jira/browse/HDFS-337    Author: Konstantin Shvachko, 2014-07-17, 23:00
[HDFS-306] FSNamesystem.shutdown() should be a part of FSNamesystem.close() - HDFS - [issue]
...FSNamesystem should either close() or shutdown(), but not both.Traditionally we used to have FSNamesystem.close()....
http://issues.apache.org/jira/browse/HDFS-306    Author: Konstantin Shvachko, 2014-07-17, 22:43
Re: Meetup invitation: Consensus based replication in Hadoop - HDFS - [mail # dev]
...Ok, or Cos.On Fri, Jul 11, 2014 at 4:41 PM, Konstantin Shvachko wrote: ...
[+ more]    Author: Konstantin Shvachko, 2014-07-11, 23:43
Re: [VOTE] Change by-laws on release votes: 5 days instead of 7 - HDFS - [mail # dev]
...+1Thanks,On Tue, Jun 24, 2014 at 1:53 AM, Arun C Murthy  wrote: ...
   Author: Konstantin Shvachko, 2014-06-29, 23:40
[HDFS-2064] Warm HA NameNode going Hot - HDFS - [issue]
...This is the design for automatic hot HA for HDFS NameNode. It involves use of HA software and LoadReplicator - external to Hadoop components, which substantially simplify the architecture by...
http://issues.apache.org/jira/browse/HDFS-2064    Author: Konstantin Shvachko, 2014-06-06, 02:11
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