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[MAPREDUCE-528] NPE in jobqueue_details.jsp page if scheduler has not started
...NullPointerException is observed in jobqueue_details.jsp page if the scheduler has not yet started...
, 2014-07-22, 21:19
[MAPREDUCE-219] JT should remember blacklisted TT after restart
...Currently, when JT is restarted , it does not remember any TT(s) which was blacklisted across the cluster before the restart. It would be useful if a new feature could be added for JT to rem...
, 2014-07-21, 22:36
[MAPREDUCE-3043] Missing containers info on the nodes page
...The containers info on the nodes page on the RM seems to be missing. This was useful in understanding the usage on each of the nodemanagers....
, 2014-04-29, 15:46
[MAPREDUCE-5766] Ping messages from attempts should be moved to DEBUG
...Messages such as "org.apache.hadoop.mapred.TaskAttemptListenerImpl: Ping from attempt_1391416522080_0015_m_000000_0" in AM logs should be moved to DEBUG....
, 2014-02-27, 14:53
[MAPREDUCE-3841] Broken Server metrics and Local logs link under the tools menu
...Local logs link redirects to the cluster page and Server metrics opens an empty page on the RM/JHS homepage. So does the links from nodemanager UI....
, 2013-08-28, 00:46
[MAPREDUCE-1397] NullPointerException observed during task failures
...In an environment where many jobs are killed simultaneously, NPEs are observed in the TT/JT logs when a task fails. The situation is aggravated when the taskcontroller.cfg is not configured ...
, 2013-05-20, 16:26
[MAPREDUCE-858] NPE in heartbeat if "mapred.job.tracker.history.completed.location" is not writable
...If "mapred.job.tracker.history.completed.location" has been configured to write to a location which is not writable by JT, NullPointerException is thrown in TT heartbeat. Below is the Except...
, 2013-05-07, 01:17
[MAPREDUCE-3783] Fix "queue -list" to display the correct capacity of queues
...Occasionally, the capacity of the queue as displayed by "queue -list" has incorrect values. For e.g:yarn.scheduler.capacity.root.queues=a,byarn.scheduler.capacity.root.b.queues=b1,b2,b3yarn....
, 2012-11-29, 20:58
[MAPREDUCE-1238] mapred metrics shows negative count of waiting maps and reduces
...Negative waiting_maps and waiting_reduces count is observed in the mapred metrics...
, 2012-05-16, 20:45
[MAPREDUCE-3747] Memory Total is not refreshed until an app is launched
...Memory Total on the RM UI is not refreshed until an application is launched. This is a problem when the cluster is started for the first time or when there are any lost/decommissioned NMs.Wh...
, 2012-03-05, 02:49
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