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[HDFS-6514] Add MirrorJournal ( server side implementation) to handle the journals from Primary cluster - HDFS - [issue]
...This targets the serverside implementation of handling journals sent by the primary cluster via MirrorJournalManager.This service will be launched in mirror cluster's active namenode. It rec...
http://issues.apache.org/jira/browse/HDFS-6514    Author: Vinayakumar B, 2014-06-12, 07:19
[HDFS-5669] Storage#tryLock() should check for null before logging successfull message - HDFS - [issue]
...In the following code in Storage#tryLock(), there is a possibility that file.getChannel().tryLock() returns null if the lock is acquired by some other process. In that case even though retur...
http://issues.apache.org/jira/browse/HDFS-5669    Author: Vinayakumar B, 2014-04-11, 16:00
[HDFS-6064] DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_DEFAULT is not updated with latest block report interval of 6 hrs - HDFS - [issue]
...DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_DEFAULT is not updated with latest block report interval of 6 hrswhere as hdfs-default.xml having value of 6hours...
http://issues.apache.org/jira/browse/HDFS-6064    Author: Vinayakumar B, 2014-04-10, 14:12
[HDFS-5728] [Diskfull] Block recovery will fail if the metafile does not have crc for all chunks of the block - HDFS - [issue]
...1. Client (regionsever) has opened stream to write its WAL to HDFS. This is not one time upload, data will be written slowly.2. One of the DataNode got diskfull ( due to some other data fill...
http://issues.apache.org/jira/browse/HDFS-5728    Author: Vinayakumar B, 2014-04-04, 20:36
[HDFS-5014] BPOfferService#processCommandFromActor() synchronization on namenode RPC call delays IBR to Active NN, if Stanby NN is unstable - HDFS - [issue]
...In one of our cluster, following has happened which failed HDFS write.1. Standby NN was unstable and continously restarting due to some errors. But Active NN was stable.2. MR Job was writing...
http://issues.apache.org/jira/browse/HDFS-5014    Author: Vinayakumar B, 2014-04-02, 03:06
[HDFS-6115] flush() should be called for every append on block scan verification log - HDFS - [issue]
...RollingLogsImpl#out is  PrintWriter and it have the default buffersize of 8kB.So until the 8kB buffer is filled all scan verification entries will not be flushed, hence there will be ch...
http://issues.apache.org/jira/browse/HDFS-6115    Author: Vinayakumar B, 2014-03-27, 14:02
[HDFS-6111] Avoid duplicate entries in Block Scan verification logs - HDFS - [issue]
...Duplicate entries could be generated in datanode verification logs if the datanode gets shutdown during the rolling of scan verification logs.If this happens multiple times in huge cluster, ...
http://issues.apache.org/jira/browse/HDFS-6111    Author: Vinayakumar B, 2014-03-18, 20:51
[HDFS-6058] Fix TestHDFSCLI failures after HADOOP-8691 change - HDFS - [issue]
...HADOOP-8691 changed the ls command output.TestHDFSCLI needs to be updated after this change,Latest precommit builds are failing because of this.https://builds.apache.org/job/PreCommit-HDFS-B...
http://issues.apache.org/jira/browse/HDFS-6058    Author: Vinayakumar B, 2014-03-06, 17:57
[HDFS-6013] add rollingUpgrade information to  latest UI - HDFS - [issue]
...Rolling Upgrade information should be shown in the latest NameNode UI.For this RollingUpgrade information should be exposed as jmx bean....
http://issues.apache.org/jira/browse/HDFS-6013    Author: Vinayakumar B, 2014-03-03, 19:52
[HDFS-5918] Avoid logging unnecessary trace in IPCLoggerChannel#close() - HDFS - [issue]
...Avoid logging stack trace while close() in IPCLoggerChannel.  @Override  public void close() {    QuorumJournalManager.LOG.info("Closing", new Exception())...
http://issues.apache.org/jira/browse/HDFS-5918    Author: Vinayakumar B, 2014-03-03, 04:25
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