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[MAPREDUCE-5628] Tracking ids only for HDFS tokens should be included in jobconf - MapReduce - [issue]
...MAPREDUCE-5379 adds the ability to track HDFS accesses of an MR job by adding the tracking-ids from all the tokens to the jobconf. However, only HDFS delegation tokens have a tracking-id. Tr...
http://issues.apache.org/jira/browse/MAPREDUCE-5628    Author: Karthik Kambatla, 2014-01-16, 01:46
[MAPREDUCE-5618] Allow setting lineage information - MapReduce - [issue]
...MR AM sets the applicationType to be "MAPREDUCE". Downstream projects like Pig, Hive, Oozie might want to set this to a different value for their error-handling, query-tracking etc. Making t...
http://issues.apache.org/jira/browse/MAPREDUCE-5618    Author: Karthik Kambatla, 2014-01-08, 18:00
Re: Next releases - MapReduce - [mail # dev]
...We should be able to ship YARN HA in Jan.  We are two sub-tasks away from main functionality (patches in progress for both). YARN-149 has some duplicate sub-tasks. We should definitely ...
   Author: Karthik Kambatla, 2013-12-06, 01:20
[MAPREDUCE-5658] JHS API and other changes to support tags - MapReduce - [issue]
...YARN-1399 introduces support for adding tags to an application. The JHS should use this and support querying MR jobs with particular tags set....
http://issues.apache.org/jira/browse/MAPREDUCE-5658    Author: Karthik Kambatla, 2013-11-29, 07:13
Re: sclipse plugin - MapReduce - [mail # dev]
...Something that I wrote up a while ago - http://blog.cloudera.com/blog/2013/05/how-to-configure-eclipse-for-hadoop-contributions/  I think the wiki has also been updated recently, not ce...
   Author: Karthik Kambatla, 2013-11-18, 02:56
[expand - 1 more] - Re: [VOTE] Release Apache Hadoop 2.1.1-beta - MapReduce - [mail # dev]
...Not sure if this should be a blocker for 2.1.1, but filed HADOOP-9976 to have a single version of avro.   On Tue, Sep 17, 2013 at 6:51 AM, Andrew Wang wrote:  ...
   Author: Karthik Kambatla, 2013-09-17, 22:03
[MAPREDUCE-5213] Re-assess TokenCache methods marked @Private - MapReduce - [issue]
...While looking at the source, noticed that TokenCache#loadTokens methods are marked @Private but not used anywhere. We should either remove those methods or mark them Public or LimitedPrivate...
http://issues.apache.org/jira/browse/MAPREDUCE-5213    Author: Karthik Kambatla, 2013-08-27, 23:22
Re: why FairScheduler prefer to schedule MR jobs into the same node? - MapReduce - [mail # user]
...It is possible that you have assignMultiple set to true in your fair scheduler configuration - that leads to assigning as many tasks on a single node heartbeat as the node can accommodate. S...
   Author: Karthik Kambatla, 2013-08-09, 21:48
[MAPREDUCE-5364] Deadlock between RenewalTimerTask methods cancel() and run() - MapReduce - [issue]
...MAPREDUCE-4860 introduced a local variable cancelled in RenewalTimerTask to fix the race where DelegationTokenRenewal attempts to renew a token even after the job is removed. However, the pa...
http://issues.apache.org/jira/browse/MAPREDUCE-5364    Author: Karthik Kambatla, 2013-08-04, 09:23
[MAPREDUCE-4860] DelegationTokenRenewal attempts to renew token even after a job is removed - MapReduce - [issue]
...mapreduce.security.token.DelegationTokenRenewal synchronizes on removeDelegationToken, but fails to synchronize on addToken, and renewing tokens in run().This inconsistency is exposed by fre...
http://issues.apache.org/jira/browse/MAPREDUCE-4860    Author: Karthik Kambatla, 2013-07-11, 21:30
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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