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[MAPREDUCE-2984] Throwing NullPointerException when we open the container page - MapReduce - [issue]
...Caused by: java.lang.NullPointerException at org.apache.hadoop.yarn.api.records.ContainerId.compareTo(ContainerId.java:97) at org.apache.hadoop.yarn.api.records.ContainerId.compareTo(Contain...
http://issues.apache.org/jira/browse/MAPREDUCE-2984    Author: Devaraj K, 2011-11-15, 00:49
[MAPREDUCE-2307] Exception thrown in Jobtracker logs, when the Scheduler configured is FairScheduler. - MapReduce - [issue]
...If we try to start the job tracker with fair scheduler using the default configuration, It is giving the below exception.2010-07-03 10:18:27,142 INFO org.apache.hadoop.ipc.Server: IPC Server...
http://issues.apache.org/jira/browse/MAPREDUCE-2307    Author: Devaraj K, 2011-11-15, 00:49
[MAPREDUCE-3030] RM is not processing heartbeat and continuously giving the message 'Node not found rebooting' - MapReduce - [issue]
...Node Manager Logs2011-09-19 13:39:29,816 INFO  webapp.WebApps (WebApps.java:start(162)) - Registered webapp guice modules2011-09-19 13:39:29,817 INFO  service.AbstractService (Abst...
http://issues.apache.org/jira/browse/MAPREDUCE-3030    Author: Devaraj K, 2011-11-15, 00:48
[MAPREDUCE-2925] job -status <JOB_ID> is giving continuously info message for completed jobs on the console - MapReduce - [issue]
...This below message is coming continuously on the console.11/09/02 16:00:00 INFO mapred.ClientServiceDelegate: Failed to contact AM for job job_1314955256658_0009  Will retry..11/09/02 1...
http://issues.apache.org/jira/browse/MAPREDUCE-2925    Author: Devaraj K, 2011-11-15, 00:48
[MAPREDUCE-2994] Parse Error is coming for App ID when we click application link on the RM UI - MapReduce - [issue]
...Caused by: org.apache.hadoop.yarn.YarnException: Error parsing app ID: application_1315895242400_1 at org.apache.hadoop.yarn.util.Apps.throwParseException(Apps.java:60) at org.apache.hadoop....
http://issues.apache.org/jira/browse/MAPREDUCE-2994    Author: Devaraj K, 2011-11-15, 00:48
RE: Basic question on HDFS - MR - MapReduce - [mail # user]
...Stuti,                 No need to copy the job jar file to every machine in the cluster. You can copy the jar file to the job tracker and execute it u...
   Author: Devaraj K, 2011-10-18, 11:24
[HADOOP-7704] JsonFactory can be created only once and used for every next request to create JsonGenerator inside JMXJsonServlet - MapReduce - [issue]
...1. Currently JMXJsonServlet creates JsonFactory for every http request.Its not efficient. JsonFactory can be created only once and used for every next request to create JsonGenerator.2. Also...
http://issues.apache.org/jira/browse/HADOOP-7704    Author: Devaraj K, 2011-10-06, 13:27
RE: A question about `mvn eclipse:eclipse` - MapReduce - [mail # user]
...Hi Zhoujie,     hadoop-yarn-common is failing to resolve hadoop-yarn-api jar file.      Can you try executing install(mvn install -X) on hadoop-yarn-api and then con...
   Author: Devaraj K, 2011-09-26, 05:35
[MAPREDUCE-2982] App/Tasks progress is showing as 0% in UI even if successfully completed - MapReduce - [issue]
...Application/Tasks progress is showing as 0% in UI even if successfully completed as shown in the attached screen shots....
http://issues.apache.org/jira/browse/MAPREDUCE-2982    Author: Devaraj K, 2011-09-23, 09:38
RE: Using HADOOP for Processing Videos - MapReduce - [mail # user]
...Hi Rajen,                 You can write a mapred application, which uses the customized InputFormat and OutputFormat(If you want to produce output as ...
   Author: Devaraj K, 2011-09-20, 05:00
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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