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RE: YARN Exceptions - Hadoop - [mail # user]
...Are you running Secured Hadoop cluster( Kerberos ) and at YARN – container executor as LinuxContainerExecutor?Thanks & RegardsRohith Sharma K SFrom: Kumar Jayapal [mailto:[EMAIL PROTECTED]]S...
   Author: Rohith Sharma K S, 2015-04-27, 04:59
RE: mapred.reduce.tasks - Hive - [mail # user]
...HiIn MapReduce , number of reducers launched is set by property “mapreduce.job.reduces”. And via java API Job#setNumReduceTasks(int tasks).In your MR job, somewhere in the program  they...
   Author: Rohith Sharma K S, 2015-04-22, 05:02
RE: [VOTE] Release Apache Hadoop 2.7.0 RC0 - YARN - [mail # dev]
...+1(non-binding)Build from source, Deployed in 3 Node clusterVerified RM HA, RM Work preserving restart and NM restart features submitting simple MR JobsAnd basic sanity testing is done.Thank...
   Author: Rohith Sharma K S, 2015-04-13, 12:12
How to configure HTTPS for HBase servers web browser? - HBase - [mail # user]
...Hi    I am setting up Hadoop + HBase cluster in https mode for web access. For Hadoop cluster , I am able to set up.But for HBase , I could not find document or configurations...
   Author: Rohith Sharma K S, 2014-11-13, 12:04
[Discuss] : Container JVM reuse feature for MRv2. - MapReduce - [mail # dev]
...Hi folks     I would like to know, Is there any feature exists for container JVM reuse within the same task types MRv2.? I  see some Open Jira's(MAPREDUCE-3902, MAPREDUCE...
   Author: Rohith Sharma K S, 2014-11-04, 06:15
RE: unable to compile hadoop source code - MapReduce - [mail # user]
...You can read Build instructions for Hadoop. http://svn.apache.org/repos/asf/hadoop/common/trunk/BUILDING.txt  For your problem, proto-buf not set in PATH. After setting, recheck proto-b...
   Author: Rohith Sharma K S, 2014-01-07, 04:16
[HIVE-3324] analyze command is not gathering "num_rows" present in the table. - Hive - [issue]
...When analyze command is executed, "collectableStats" i.e num_rows and raw_data_size is always zero even though table contains data.[num_partitions: 0, num_files: 1, num_rows: 0, total_si...
http://issues.apache.org/jira/browse/HIVE-3324    Author: Rohith Sharma K S, 2013-11-13, 03:14
[MAPREDUCE-5441] JobClient exit whenever RM issue Reboot command to 1st attempt App Master. - MapReduce - [issue]
...When RM issue Reboot command to app master, app master shutdown gracefully. All the history event are writtent to hdfs with job status set as ERROR. Jobclient get job state as ERROR and exit...
http://issues.apache.org/jira/browse/MAPREDUCE-5441    Author: Rohith Sharma K S, 2013-10-05, 23:40
[MAPREDUCE-5486] Potential file handler leak in JobHistoryServer web ui. - MapReduce - [issue]
...Any problem in getting aggregated logs for rendering on web ui, then LogReader is not closed. Now, it reader is not closed which causing many connections in close_wait state.hadoopuser@hadoo...
http://issues.apache.org/jira/browse/MAPREDUCE-5486    Author: Rohith Sharma K S, 2013-08-30, 16:16
[MAPREDUCE-5401] Succeeded Job details displayed as Error  In JobHistoryServer UI when RM issues Reboot to 1st app master. - MapReduce - [issue]
...RM issues Reboot to 1st attempt app master and lauches 2nd attempt app master in available NodeManager.1st attempt app master shutdown gracefully , not deleting staging directory which is ha...
http://issues.apache.org/jira/browse/MAPREDUCE-5401    Author: Rohith Sharma K S, 2013-08-22, 04:13
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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