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[MAPREDUCE-3402] AMScalability test of Sleep job with 100K 1-sec maps regressed into running very slowly - MapReduce - [issue]
...The world was rosier before October 19-25, Karam Singh says.The 100K 1 second sleep job used to take around 800mins or 13-14 mins. It now runs till 45 mins and still manages to complete only...
http://issues.apache.org/jira/browse/MAPREDUCE-3402    Author: Vinod Kumar Vavilapalli, 2012-02-08, 03:10
[MAPREDUCE-3754] RM webapp should have pages filtered based on App-state - MapReduce - [issue]
...Helps a lot when we have lot of apps. Already having difficulties with gridmix with a single big list of apps of all states....
http://issues.apache.org/jira/browse/MAPREDUCE-3754    Author: Vinod Kumar Vavilapalli, 2012-02-01, 14:27
[MAPREDUCE-3778] Per-state RM app-pages should have search ala JHS pages - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-3778    Author: Vinod Kumar Vavilapalli, 2012-02-01, 00:54
[MAPREDUCE-3718] Default AM heartbeat interval should be one second - MapReduce - [issue]
...Helps in improving app performance. RM should be able to handle this, as the heartbeats aren't really costly....
http://issues.apache.org/jira/browse/MAPREDUCE-3718    Author: Vinod Kumar Vavilapalli, 2012-01-27, 13:19
[MAPREDUCE-3699] Default RPC handlers are very low for YARN servers - MapReduce - [issue]
...Mainly NM has a default of 5, RM has 10 and AM also has 10 irrespective of num-slots, num-nodes and num-tasks respectively. Though ideally we want to scale according to slots/nodes/tasks, fo...
http://issues.apache.org/jira/browse/MAPREDUCE-3699    Author: Vinod Kumar Vavilapalli, 2012-01-27, 13:19
[MAPREDUCE-3731] NodeManager should use SecureIOUtils for serving logs and intermediate outputs - MapReduce - [issue]
...Log servlets for serving logs and the ShuffleService for serving intermediate outputs both should use SecureIOUtils for avoiding symlink attacks....
http://issues.apache.org/jira/browse/MAPREDUCE-3731    Author: Vinod Kumar Vavilapalli, 2012-01-26, 05:29
[MAPREDUCE-3714] Reduce hangs in a corner case - MapReduce - [issue]
...Karam Singh found this long time back and we(Sid/I) ran into this again.Logs to follow.....
http://issues.apache.org/jira/browse/MAPREDUCE-3714    Author: Vinod Kumar Vavilapalli, 2012-01-25, 15:00
[MAPREDUCE-3382] Network ACLs can prevent AMs to ping the Job-end notification URL - MapReduce - [issue]
...MAPREDUCE-3028 added support for job-end notification from MR AMs after the job finishes. Network ACLs can have an implication on this one - outgoing connections from the compute nodes may b...
http://issues.apache.org/jira/browse/MAPREDUCE-3382    Author: Vinod Kumar Vavilapalli, 2012-01-11, 13:22
[MAPREDUCE-3569] TaskAttemptListener holds a global lock for all task-updates - MapReduce - [issue]
...This got added via MAPREDUCE-3274. We really don't need the lock if we just implement what I mentioned on that ticket here.This has performance implications on MR AM with lots of tasks....
http://issues.apache.org/jira/browse/MAPREDUCE-3569    Author: Vinod Kumar Vavilapalli, 2012-01-05, 13:22
[MAPREDUCE-3572] MR AM's dispatcher is blocked by heartbeats to ResourceManager - MapReduce - [issue]
...All the heartbeat processing is done in RMContainerAllocator locking the object. The event processing is also locked on this, causing the dispatcher to be blocked and the rest of the AM gett...
http://issues.apache.org/jira/browse/MAPREDUCE-3572    Author: Vinod Kumar Vavilapalli, 2012-01-05, 13:22
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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