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Re: SIMPLE authentication is not enabled. Available:[TOKEN] - Hadoop - [mail # user]
...There was a bug around this message that was fixed. I found another bug Iforgot to report. If your system is using ipv6 yarn get get confused overthe source/destination ips and throw this me...
   Author: Edward Capriolo, 2014-03-15, 21:19
Re: Impact of Tez/Spark to MapReduce - Hadoop - [mail # user]
...The thing about yarn is you chose what is right for the the workload.For example: Spark may not the right choice if for example join tables donot fit in memory.On Wednesday, March 5, 2014, A...
   Author: Edward Capriolo, 2014-03-06, 01:03
[HADOOP-5848] JMX Metrics For TaskTracker - Hadoop - [issue]
...Create useful metrics for the TaskTracker Component. TasksStarted: Counter TasksFailed: CounterIf graphed, having these metrics will help administrators determine graphically how task load ...
http://issues.apache.org/jira/browse/HADOOP-5848    Author: Edward Capriolo, 2013-07-12, 03:58
[HADOOP-5849] JMX Metrics For JobTracker - Hadoop - [issue]
...The Job Tracker Should have JMX Metrics for monitoring performance JobsSubmitted: counter JobsSuccessful: counter JobsFailed: counter TotalTasksCreated: counter TotalTasksSuccessful: counter...
http://issues.apache.org/jira/browse/HADOOP-5849    Author: Edward Capriolo, 2013-07-12, 03:57
Re: NN Memory Jumps every 1 1/2 hours - Hadoop - [mail # user]
...I tried your suggested setting and forced GC from Jconsole and once it crept up nothing was freeing up.  So just food for thought:  You said "average file name size is 32 bytes". W...
   Author: Edward Capriolo, 2012-12-27, 22:58
Re: Regarding DataJoin contrib jar for 1.0.3 - Hadoop - [mail # user]
...DataJoin is an example. Most people doing joins use Hive or Pig rather then code them up themselves.   On Tue, Jul 24, 2012 at 5:19 PM, Abhinav M Kulkarni  wrote:...
   Author: Edward Capriolo, 2012-07-25, 20:27
Re: hadoop FileSystem.close() - Hadoop - [mail # user]
...In all my experience you let FileSystem instances close themselves.  On Tue, Jul 24, 2012 at 10:34 AM, Koert Kuipers  wrote:...
   Author: Edward Capriolo, 2012-07-24, 14:46
Re: Avro vs Protocol Buffer - Hadoop - [mail # user]
...We just open sourced our protobuf support for Hive. We built it out because in our line of work protobuf is very common and it gave us the ability to log protobufs directly to files and then...
   Author: Edward Capriolo, 2012-07-20, 22:03
Re: Group mismatches? - Hadoop - [mail # user]
...In all places I have found it only to be the primary group, not all the users supplemental groups.  On Mon, Jul 16, 2012 at 3:05 PM, Clay B.  wrote:...
   Author: Edward Capriolo, 2012-07-16, 19:15
Re: stuck in safe mode after restarting dfs after found dead node - Hadoop - [mail # user]
...If the files are gone forever you should run:  hadoop fsck -delete /  To acknowledge they have moved on from existence. Otherwise things that attempt to read this files will, to pu...
   Author: Edward Capriolo, 2012-07-14, 15:23
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