Vinod Kumar Vavilapalli
Arun C Murthy
Robert Joseph Evans
Vinay Kumar Thota
Joydeep Sen Sarma
Bhallamudi Venkata Siva K...
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[MAPREDUCE-5221] Reduce side Combiner is not used when using the new API
...If a combiner is specified using o.a.h.mapreduce.Job.setCombinerClass - this will silently ignored on the reduce side since the reduce side usage is only aware of the old api combiner.This d...
, 2016-06-28, 06:26
[MAPREDUCE-6197] Cache MapOutputLocations in ShuffleHandler
...ShuffleHandler currently seems to create a map of mapId - mapInfo (file.out / index information) when it receives a message.This should be caching map info across requests, so that the a sca...
, 2016-06-21, 21:55
[MAPREDUCE-5663] Add an interface to Input/Ouput Formats to obtain delegation tokens
...Currently, delegation tokens are obtained as part of the getSplits / checkOutputSpecs calls to the InputFormat / OutputFormat respectively.This works as long as the splits are generated on a...
, 2015-06-30, 05:36
[MAPREDUCE-2979] Remove ClientProtocolProvider configuration under mapreduce-client-core
...ClientProtocolProvider configuration exists under the job-client and core modules. It's really only required in job-client. The version in core points to JobTrackerClientProtocolProvider whi...
, 2015-03-16, 17:57
Re: Looking to a Hadoop 3 release
- [mail # dev]
...I think it'll be useful to have a discussion about what else people wouldlike to see in Hadoop 3.x - especially if the change is potentiallyincompatible. Also, what we expect the release sch...
, 2015-03-05, 23:21
[MAPREDUCE-4894] Renewal / cancellation of JobHistory tokens
...Equivalent of YARN-50 for JobHistory tokens....
, 2014-09-04, 00:25
[MAPREDUCE-4734] The history server should link back to NM logs if aggregation is incomplete / disabled
, 2014-04-22, 20:15
[MAPREDUCE-3671] AM-NM RPC calls occasionally takes a long time to respond
...Observed while looking at MAPREDUCE-3596 and MAPREDUCE-3656.startContainer taking over a minute in some cases, otherwise 15 seconds. Both were observed soon after reduce tasks started. Netwo...
, 2014-04-18, 17:24
[MAPREDUCE-3811] Make the Client-AM IPC retry count configurable
, 2013-11-08, 18:16
[MAPREDUCE-3054] Unable to kill submitted jobs
...Found by Philip SuThe "mapred job -kill" commandappears to succeed, but listing the jobs again shows that the job supposedly killed is still there. mapred job -listTotal jobs:2JobId S...
, 2013-10-12, 09:20
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