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[MAPREDUCE-5040] Make JobId, TaskId, TaskAttemptId immutable - MapReduce - [issue]
...These classes don't really need to be mutable. The current implementation synchronizes on pretty much all operations - which should be avoided....
http://issues.apache.org/jira/browse/MAPREDUCE-5040    Author: Siddharth Seth, 2013-03-01, 19:44
Re: [VOTE] Release hadoop-2.0.3-alpha - MapReduce - [mail # dev]
...+1. Verified checksums and signature. Built from source and deployed on a multi node cluster. Verified with several MR examples.  - Sid   On Wed, Feb 6, 2013 at 7:59 PM, Arun C Mur...
   Author: Siddharth Seth, 2013-02-12, 19:39
[MAPREDUCE-4596] Split StateMachine state from states seen by MRClientProtocol (for Job, Task, TaskAttempt) - MapReduce - [issue]
...State machine states are currently exposed via MRClienProtocol. This makes it tough to modify the AM state machines, or have an alternate AM with different state machines (MR-3902) without t...
http://issues.apache.org/jira/browse/MAPREDUCE-4596    Author: Siddharth Seth, 2013-02-06, 17:05
[MAPREDUCE-4425] Speculation + Fetch failures can lead to a hung job - MapReduce - [issue]
...After a task goes to SUCCEEDED, FAILED/KILLED attempts are ignored.1. attemp1 starts2. speculative attempt starts3. attempt 1 completes - Task moves to SUCCEEDED state4. speculative attempt ...
http://issues.apache.org/jira/browse/MAPREDUCE-4425    Author: Siddharth Seth, 2013-02-06, 17:05
[MAPREDUCE-4894] Renewal / cancellation of JobHistory tokens - MapReduce - [issue]
...Equivalent of YARN-50 for JobHistory tokens....
http://issues.apache.org/jira/browse/MAPREDUCE-4894    Author: Siddharth Seth, 2012-12-27, 18:41
[MAPREDUCE-3721] Race in shuffle can cause it to hang - MapReduce - [issue]
...If all current {{Fetcher}}s complete while an in-memory merge is in progress - shuffle could hang. Specifically - if the memory freed by an in-memory merge does not bring MergeManager.usedMe...
http://issues.apache.org/jira/browse/MAPREDUCE-3721    Author: Siddharth Seth, 2012-12-03, 21:30
[MAPREDUCE-4738] [MAPREDUCE-3902] re-enable disabled unit tests in mr-client-app2 module - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-4738    Author: Siddharth Seth, 2012-10-19, 19:43
[MAPREDUCE-4727] [MAPREDUCE-3902] Handle a successful NM stop request - MapReduce - [issue]
...The branch currently ignores successful container stop requests to the NodeManager, and waits instead for a ContainerFinished message from the RM.These stop requests should be handled....
http://issues.apache.org/jira/browse/MAPREDUCE-4727    Author: Siddharth Seth, 2012-10-15, 22:10
Re: Fix versions for commits branch-0.23 - MapReduce - [mail # dev]
...Along with fix versions, does it make sense to add JIRAs under 0.23 as well as branch-2 in CHANGES.txt, if they're committed to both branches. CHANGES.txt tends to get out of sync with the d...
   Author: Siddharth Seth, 2012-10-09, 03:21
[MAPREDUCE-4558] TestJobTrackerSafeMode is failing - MapReduce - [issue]
...MAPREDUCE-1906 exposed an issue with this unit test. It has 3 TTs running, but has a check for the TT count to reach exactly 2 (which would be reached with a higher heartbeat interval).The t...
http://issues.apache.org/jira/browse/MAPREDUCE-4558    Author: Siddharth Seth, 2012-09-27, 23:00
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