Vinod Kumar Vavilapalli
Arun C Murthy
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[MAPREDUCE-5093] Improve RM and HS token acquisition during job submission
...Jobs that intend to submit other jobs (ex. oozie, pig) require a RM token. Yarn has added the requirement of a HS token. Currently the submitter is required to explicitly obtain ...
, 2016-05-12, 18:24
[MAPREDUCE-3475] JT can't renew its own tokens
...When external systems submit jobs whose tasks need to submit additional jobs (such as oozie/pig), they include their own MR token used to submit the job. The token's renewer may not al...
, 2015-03-10, 02:50
[MAPREDUCE-2764] Fix renewal of dfs delegation tokens
...The JT may have issues renewing hftp tokens which disrupt long distcp jobs. The problem is the JT's delegation token renewal code is built on brittle assumptions. The token's ser...
, 2015-01-09, 18:12
[MAPREDUCE-4202] TestYarnClientProtocolProvider is broken
...The test fails because a cluster is unexpectedly created with an empty conf....
, 2014-09-04, 02:05
[MAPREDUCE-3825] MR should not be getting duplicate tokens for a MR Job.
...This is the counterpart to HADOOP-7967. MR gets tokens for all input, output and the default filesystem when a MR job is submitted. The APIs in FileSystem make it challenging to avoid ...
, 2014-04-16, 23:04
[MAPREDUCE-3704] Yarn client goes into tight loop upon connection failure
...If the client fails to connect to the AM or HS, it will go into a tight loop retrying the connection. The log rapidly grows with multiple log lines per attempt. Based one of the ...
, 2014-04-16, 22:22
[MAPREDUCE-5096] Deprecate ability to not cancel tokens when job completes
...MR provides a config mapreduce.job.complete.cancel.delegation.tokens and an api Job#setCancelDelegationTokenUponJobCompletion to disable canceling tokens when a job completes. This fun...
, 2013-03-22, 21:44
[MAPREDUCE-4936] JobImpl uber checks for cpu are wrong
...The cpu checks for uberizing have two issues: the defaults are hardcoded instead of using the conf defaults the comparison against the sys cpu size is using < instead of <=  ...
, 2013-01-16, 14:05
[MAPREDUCE-4614] Simplify debugging a job's tokens
...It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logg...
, 2012-10-11, 18:48
[MAPREDUCE-4323] NM leaks filesystems
...The NM is exhausting its fds because it's not closing fs instances when the app is finished....
, 2012-08-22, 00:55
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