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[MAPREDUCE-5887] Move split creation from submission client to MRAppMaster - MapReduce - [issue]
...This JIRA is filed to improve scalability of job submission, specifically when there is a significant latency between the submission client and the cluster nodes RM and NN, e.g. in a multi-d...
http://issues.apache.org/jira/browse/MAPREDUCE-5887    Author: Gera Shegalov, 2014-05-14, 10:39
[MAPREDUCE-5847] Remove redundant code for fileOutputByteCounter in MapTask and ReduceTask - MapReduce - [issue]
...Both MapTask and ReduceTask carry redundant code to update BYTES_WRITTEN counter. However, Task.updateCounters uses file system stats for this....
http://issues.apache.org/jira/browse/MAPREDUCE-5847    Author: Gera Shegalov, 2014-04-19, 00:24
[MAPREDUCE-5839] Provide a boolean switch to enable LazyOutputFormat - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5839    Author: Gera Shegalov, 2014-04-17, 06:02
[MAPREDUCE-4834] LinuxTaskController DELETE_AS_USER should try to delete as many paths as possible - MapReduce - [issue]
...When task-controller.c:delete_path iterates inodes in a directory tree, it may encounter a deletion failure. However, other directories/files may well be deletable, and the tree walk should ...
http://issues.apache.org/jira/browse/MAPREDUCE-4834    Author: Gera Shegalov, 2014-04-15, 19:34
[MAPREDUCE-5825] Provide diagnostics for reducers killed during ramp down - MapReduce - [issue]
...Since we operate many queues pretty much at their capacity it some times happens that a failed mapper causes a reducer ramp down. However, the user can only see "Container killed by the Appl...
http://issues.apache.org/jira/browse/MAPREDUCE-5825    Author: Gera Shegalov, 2014-04-11, 16:00
[MAPREDUCE-5773] Provide dedicated MRAppMaster syslog length limit - MapReduce - [issue]
...Currently mapreduce.task.userlog.limit.kb controls both the length of task attempt logs and MA-AM attempt logs. Obviously, MR-AM log is not userlog.We are interested in keeping MR-AM log eit...
http://issues.apache.org/jira/browse/MAPREDUCE-5773    Author: Gera Shegalov, 2014-04-10, 14:11
[MAPREDUCE-5754] Preserve Job diagnostics in history - MapReduce - [issue]
...History does not store the runtime diagnostics information. JobHistoryParser tries to blame a task. We propose to preserve the original runtime diagnostics that covers all the cases includin...
http://issues.apache.org/jira/browse/MAPREDUCE-5754    Author: Gera Shegalov, 2014-04-10, 14:11
Re: [VOTE] Release Apache Hadoop 2.4.0 - MapReduce - [mail # dev]
...I built the release from the rc tag, enabled timeline history service andran a sleep job on a pseudo-distributed cluster.I encourage another rc, for 2.4.0 (non-binding)1) Despite the discuss...
   Author: Gera Shegalov, 2014-04-05, 00:06
[MAPREDUCE-5648] Allow user-specified diagnostics for killed tasks and jobs - MapReduce - [issue]
...Our users and tools want to be able to supply additional custom diagnostic messages to mapreduce ClientProtocol killTask....
http://issues.apache.org/jira/browse/MAPREDUCE-5648    Author: Gera Shegalov, 2014-03-16, 03:38
Re: [VOTE] Release Apache Hadoop 2.3.0 - MapReduce - [mail # dev]
...+1 non-binding- checked out the rc tag and built from source- deployed a pseudo-distributed cluster withyarn.resourcemanager.recovery.enabled=true- ran a sleep job with multiple map waves an...
   Author: Gera Shegalov, 2014-02-13, 03:53
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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