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[YARN-2010] RM can't transition to active if it can't recover an app attempt - YARN - [issue]
...If the RM fails to recover an app attempt, it won't come up. We should make it more resilient.Specifically, the underlying error is that the app was submitted before Kerberos security got tu...
http://issues.apache.org/jira/browse/YARN-2010    Author: bc Wong, 2014-10-22, 17:41
[MAPREDUCE-5862] Line records longer than 2x split size aren't handled correctly - MapReduce - [issue]
...Suppose this split (100-200) is in the middle of a record (90-240):   0              100            200   &nbs...
http://issues.apache.org/jira/browse/MAPREDUCE-5862    Author: bc Wong, 2014-09-03, 21:33
[SPARK-3145] Hive on Spark umbrella - Spark - [issue]
...This is an umbrella jira to point to dependency & asks from the Hive-on-Spark project (HIVE-7292)....
http://issues.apache.org/jira/browse/SPARK-3145    Author: bc Wong, 2014-08-29, 08:37
Re: spark on yarn is trying to use file:// instead of hdfs:// - Spark - [mail # user]
...Koert, is there any chance that your fs.defaultFS isn't setup right?On Fri, Jun 20, 2014 at 9:57 AM, Koert Kuipers  wrote: ...
   Author: bc Wong, 2014-06-20, 17:05
[MAPREDUCE-5777] Support utf-8 text with BOM (byte order marker) - MapReduce - [issue]
...UTF-8 text may have a BOM. TextInputFormat, KeyValueTextInputFormat and friends should recognize the BOM and not treat it as actual data....
http://issues.apache.org/jira/browse/MAPREDUCE-5777    Author: bc Wong, 2014-06-19, 01:03
Re: problem starting the history server on EC2 - Spark - [mail # user]
...What's the permission on /root itself?On Jun 10, 2014 6:29 PM, "zhen"  wrote: ...
   Author: bc Wong, 2014-06-11, 01:31
[YARN-1913] With Fair Scheduler, cluster can logjam when all resources are consumed by AMs - YARN - [issue]
...It's possible to deadlock a cluster by submitting many applications at once, and have all cluster resources taken up by AMs.One solution is for the scheduler to limit resources taken up by A...
http://issues.apache.org/jira/browse/YARN-1913    Author: bc Wong, 2014-06-03, 16:54
[YARN-1785] FairScheduler treats app lookup failures as ERRORs - YARN - [issue]
...When invoking the /ws/v1/cluster/apps endpoint, RM will eventually get to RMAppImpl#createAndGetApplicationReport, which calls RMAppAttemptImpl#getApplicationResourceUsageReport, which looks...
http://issues.apache.org/jira/browse/YARN-1785    Author: bc Wong, 2014-04-10, 14:10
[YARN-1790] Fair Scheduler UI not showing apps table - YARN - [issue]
...There is a running job, which shows up in the summary table in the FairScheduler UI, the queue display, etc. Just not in the apps table at the bottom....
http://issues.apache.org/jira/browse/YARN-1790    Author: bc Wong, 2014-03-08, 14:53
Re: Ways to manage user accounts on hadoop cluster when using kerberos security - MapReduce - [mail # user]
...LDAP/AD is pretty much it. You can also have Kerberos authenticate directly to AD, or set up one-way trust between AD and MIT Kerberos. There are other identity management systems that basic...
   Author: bc Wong, 2014-01-08, 08:24
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