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[MAPREDUCE-2371] TaskLogsTruncater does not need to check log ownership when running as Child - MapReduce - [issue]
...Before MAPREDUCE-2178, it used to be that the TaskLogsTruncater had to use the SecureIO API to open the task logs before truncation, to avoid an attack where the user would symlink in someth...
http://issues.apache.org/jira/browse/MAPREDUCE-2371    Author: Todd Lipcon, 2011-10-31, 04:57
[MAPREDUCE-2373] When tasks exit with a nonzero exit status, task runner should log the stderr as well as stdout - MapReduce - [issue]
...Currently, if the taskjvm.sh script fails to exec java for some reason, it prints its error message to stderr. This doesn't make it to the logs anywhere. Logging the stderr is very useful to...
http://issues.apache.org/jira/browse/MAPREDUCE-2373    Author: Todd Lipcon, 2011-10-28, 06:36
[MAPREDUCE-3260] Yarn app stuck in KILL_WAIT state - MapReduce - [issue]
...Last night I killed an MR2 app using "hadoop job -kill". This morning I noticed it's still running, but in "KILL_WAIT" state with no tasks running....
http://issues.apache.org/jira/browse/MAPREDUCE-3260    Author: Todd Lipcon, 2011-10-27, 06:37
[MAPREDUCE-3266] NM resource allocation should be in MB, not GB - MapReduce - [issue]
...Currently, the resource allocation for tasks on the NM is expressed in GB. This is inconsistent with the per-task resources which are in units of MBs. We should use MB throughout for better ...
http://issues.apache.org/jira/browse/MAPREDUCE-3266    Author: Todd Lipcon, 2011-10-26, 21:29
[MAPREDUCE-3268] MR2 capacity scheduler doesn't spread tasks evenly on an underutilized cluster - MapReduce - [issue]
...The fair scheduler in MR1 has the behavior that, if a job is submitted to an under-utilized cluster and the cluster has more open slots than tasks in the job, the tasks are spread evenly thr...
http://issues.apache.org/jira/browse/MAPREDUCE-3268    Author: Todd Lipcon, 2011-10-25, 20:39
[MAPREDUCE-3255] MR2 needs a counter analogous to "slot seconds" - MapReduce - [issue]
...In older versions of MR, we have a SLOT_MILLIS counter which counts how many seconds each task (and job) used of map/reduce slots. Since we no longer have the concept of a "slot" in MR2, we ...
http://issues.apache.org/jira/browse/MAPREDUCE-3255    Author: Todd Lipcon, 2011-10-25, 18:05
[MAPREDUCE-3234] Locality scheduling broken due to mismatch between IPs and hosts - MapReduce - [issue]
...I noticed that, on a single-rack cluster, I wasn't getting hardly any data locality. The issue appears to be the code in RMContainerAllocator which changes the resource requests to use IP ad...
http://issues.apache.org/jira/browse/MAPREDUCE-3234    Author: Todd Lipcon, 2011-10-22, 06:20
[MAPREDUCE-2265] task-controller and jsvc should install into sbin/<platform>/ directory - MapReduce - [issue]
...Currently the task-controller and jsvc "live" in the bin/ directory regardless of build platform. This is incorrect since these components are native compiled code and thus are built for a p...
http://issues.apache.org/jira/browse/MAPREDUCE-2265    Author: Todd Lipcon, 2011-10-20, 22:50
[MAPREDUCE-2578] Fix eclipse project to work out of the box - MapReduce - [issue]
...Currently "ant eclipse" generates an eclipse project that doesn't actually work properly. A few issues: the "testjar" dir inside src/test/mapred has a java class in no package, which confuse...
http://issues.apache.org/jira/browse/MAPREDUCE-2578    Author: Todd Lipcon, 2011-10-20, 22:39
[MAPREDUCE-1991] taskcontroller allows stealing permissions on any local file - MapReduce - [issue]
...The linux task-controller setuid binary allows a malicious user to chmod any file on the system to 644 (and as a side effect appends some junk to the end)...
http://issues.apache.org/jira/browse/MAPREDUCE-1991    Author: Todd Lipcon, 2011-10-20, 22:30
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