Vinod Kumar Vavilapalli
Arun C Murthy
Robert Joseph Evans
Vinay Kumar Thota
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[MAPREDUCE-1021] mapred-default.xml does not document all framework config parameters
...MAPREDUCE-849 renamed and categorized configuration keys. All the configuration keys should be documented with defaults in mapred-default.xml...
, 2014-07-24, 01:15
[MAPREDUCE-786] Jobtracker history should be written aysnchronously to the filesystem
...Jobtracker lock is held while writing the history events. This makes the jobtracker slow on flushes, especially when history is written to HDFS. History events should be written asynchronous...
, 2014-07-23, 21:04
[MAPREDUCE-346] Report Map-Reduce Framework Counters in pipeline order
...Currently there is no order in which counters are printed. It would be more user friendly if Map-Reduce Framework counters are reported in the pipeline order....
, 2014-07-21, 20:50
[MAPREDUCE-2713] Recovery of ResourceManager
...ResourceManager needs to recover from crashes to the state where it left off. All running applications should be able to join back the restarted RM. All running containers should not be affe...
, 2012-06-18, 17:06
[MAPREDUCE-3315] Master-Worker Application on YARN
...Currently master worker scenarios are forced fit into Map-Reduce. Now with YARN, these can be first class and would benefit real/near realtime workloads and be more effective in using the cl...
, 2012-05-25, 08:08
[MAPREDUCE-2720] MR-279: Write a simple Java application
...Currently for isolation purposes, many simple java applications run in cluster with 1 map only job. (eg. Oozie). This is not really required with nextgen hadoop (mrv2) and non-MR apps are fi...
, 2012-05-23, 06:01
[MAPREDUCE-2493] New Api FileOutputFormat does not honour user specified OutputCommitter
...o.a.h.mapreduce.lib.output.FileOutputFormat always uses the default FileOutputCommitter. It ignores the user specified OutputCommitter....
, 2012-05-22, 09:19
[MAPREDUCE-2807] MR-279: AM restart does not work after RM refactor
...When the AM crashes, RM is not able to launch a new App attempt....
, 2011-11-15, 00:50
[MAPREDUCE-2719] MR-279: Write a shell command application
...With nextgen hadoop (mrv2), it is simple to write non-MR applications. Write an AplicationMaster (also corresponding simple client), to submit and run a shell command application in the clus...
, 2011-11-15, 00:49
[MAPREDUCE-2904] HDFS jars added incorrectly to yarn classpath
, 2011-11-15, 00:49
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