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Re: All datanodes are bad. Aborting ... - Hadoop - [mail # user]
...check with  open file descriptor limit in data nodes and namenode.$ ulimit -aandcheck with 'dfs.datanode.max.xcievers ordfs.datanode.max.transfer.threads' property in hdfs-site.xmlOn Su...
   Author: sudhakara st, 2014-04-20, 17:07
Re: Re: Hadoop NoClassDefFoundError - Hadoop - [mail # user]
...Compile command should be:javac -classpath  -d myjob MyJob.javaOn Wed, Apr 16, 2014 at 1:53 PM, [EMAIL PROTECTED]  wrote:Regards,...sudhakara  ...
   Author: sudhakara st, 2014-04-16, 10:59
Re: Replicating Hadoop configuration files on all nodes - Hadoop - [mail # user]
...use 'rsync' or 'scp' in commandlineOn Sat, Mar 15, 2014 at 12:12 PM, Shashidhar Rao <[EMAIL PROTECTED]Regards,...sudhakara ...
   Author: sudhakara st, 2014-03-15, 12:08
Re: Hadoop 2.2.0 not showing progress - Hadoop - [mail # user]
...RM not able schdule your jobs it waiting indefinitely to schedule jobs, maydue to  not able communicate with NM's or not able create  AM orsufiicient resoucrce are not avaialbel in...
   Author: sudhakara st, 2014-03-11, 05:11
Re: How to set heartbeat ? - Hadoop - [mail # user]
...Default time interval for marking a datanode as "stale", i.e., if thenamenode has not received heartbeat msg from a datanode for more than thistime interval, the datanode will be marked and ...
   Author: sudhakara st, 2014-02-27, 05:41
Re: hadoop Exception: java.io.IOException: Couldn't set up IO streams - Hadoop - [mail # user]
...*"Caused by: java.lang.OutOfMemoryError: unable to create new nativethread"* this lines shows out memory error in the destination host is: "l-hadoop2.prod.cn2.corp.agrant.cn",The destination...
   Author: sudhakara st, 2014-02-27, 04:06
Re: Reading a file in a customized way - Hadoop - [mail # user]
...Use  WholeInputFileFormat/WholeFileRecordReader ( The Hadoop DefinitiveGuide- Tom White's page 240) to read the file name as the key and  thecontents of the file as its value to ma...
   Author: sudhakara st, 2014-02-25, 07:45
Re: hdfs compatibility - Hadoop - [mail # user]
...Hello Anfernee,Actually this not data migrations !! . It is upgrade. If you have tocluster older one 0.21.0 with data and another one 2.2.0 is new. Then ifwant to copy data from older to new...
   Author: sudhakara st, 2014-02-19, 18:11
Re: Performance in running jobs at the same time - Hadoop - [mail # user]
...1 - I installed Hadoop MRv2 in VirtualMachines. When the jobs arerunning, I try to list them with "hadoop jobs -list", but it takes lotsof time for the command being executed. This happens b...
   Author: sudhakara st, 2014-01-27, 11:58
Re: HDFS open file limit - Hadoop - [mail # user]
...There is no open file limitation for HDFS. The 'Too many open file'  limitis for OS file system. Increase *system-wide maximum number of open files,Per-User/Group/Process file descripto...
   Author: sudhakara st, 2014-01-27, 11:35
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