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[HDFS-6735] A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream - HDFS - [issue]
...In current DFSInputStream impl, there're a couple of coarser-grained locks in read/pread path, and it has became a HBase read latency pain point so far. In HDFS-6698, i made a minor patch ag...
http://issues.apache.org/jira/browse/HDFS-6735    Author: Liang Xie, 2014-07-23, 13:25
[HDFS-5723] Append failed FINALIZED replica should not be accepted as valid when that block is underconstruction - HDFS - [issue]
...Scenario:1. 3 node cluster with dfs.client.block.write.replace-datanode-on-failure.enable set to false.2. One file is written with 3 replicas, blk_id_gs13. One of the datanode DN1 is down.4....
http://issues.apache.org/jira/browse/HDFS-5723    Author: Vinayakumar B, 2014-07-23, 12:35
Re: [DISCUSS] Assume Private-Unstable for classes that are not annotated - HDFS - [mail # dev]
...+1 for Karthik's suggestion.- TsuyoshiOn Wed, Jul 23, 2014 at 6:54 AM, Karthik Kambatla  wrote:- Tsuyoshi ...
   Author: Tsuyoshi OZAWA, 2014-07-23, 12:32
[HDFS-6704] Fix the command to launch JournalNode in HDFS-HA document - HDFS - [issue]
...In HDFSHighAvailabilityWithQJM.html,After all of the necessary configuration options have been set, you must start the JournalNode daemons on the set of machines where they will run. This ca...
http://issues.apache.org/jira/browse/HDFS-6704    Author: Akira AJISAKA, 2014-07-23, 11:59
[HDFS-6701] Make seed optional in NetworkTopology#sortByDistance - HDFS - [issue]
...Currently seed in NetworkTopology#sortByDistance is set to the blockid which causes the RNG to generate same pseudo random order for each block. If no node local block location is present,th...
http://issues.apache.org/jira/browse/HDFS-6701    Author: Ashwin Shankar, 2014-07-23, 11:59
[HDFS-6731] Run "hdfs zkfc-formatZK" on a server in a non-namenode  will cause a null pointer exception. - HDFS - [issue]
...Run "hdfs zkfc-formatZK" on a server in a non-namenode  will cause a null pointer exception.[hadoop@test bin]$ ./hdfs zkfc -formatZKException in thread "main" java.lang.NullPointerExcep...
http://issues.apache.org/jira/browse/HDFS-6731    Author: WenJin Ma, 2014-07-23, 11:59
[HDFS-6712] Document HDFS Multihoming Settings - HDFS - [issue]
...A few HDFS settings can be changed to enable better support in multi-homed environments. This task is to write a short guide to these settings....
http://issues.apache.org/jira/browse/HDFS-6712    Author: Arpit Agarwal, 2014-07-23, 11:59
[HDFS-6703] NFS: Files can be deleted from a read-only mount - HDFS - [issue]
...As reported by bigdatagroup <[EMAIL PROTECTED]> on hadoop-users mailing list:We exported our distributed filesystem with the following configuration (Managed by Cloudera Manager over C...
http://issues.apache.org/jira/browse/HDFS-6703    Author: Abhiraj Butala, 2014-07-23, 11:59
[HDFS-6722] Display readable last contact time for dead nodes on NN webUI - HDFS - [issue]
...For dead node info on NN webUI, admins want to know when the nodes became dead, to troubleshoot missing block, etc. Currently the webUI displays the last contact as "the unit of seconds sinc...
http://issues.apache.org/jira/browse/HDFS-6722    Author: Ming Ma, 2014-07-23, 11:44
[HDFS-5919] FileJournalManager doesn't purge empty and corrupt inprogress edits files - HDFS - [issue]
...FileJournalManager doesn't purge empty and corrupt inprogress edit files.These stale files will be accumulated over time.These should be cleared along with the purging of other edit logs...
http://issues.apache.org/jira/browse/HDFS-5919    Author: Vinayakumar B, 2014-07-23, 11:29
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