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[HBASE-12911] Client-side metrics - HBase - [issue]
...There's very little visibility into the hbase client. Folks who care to add some kind of metrics collection end up wrapping Table method invocations with System.currentTimeMillis(). For a cr...
http://issues.apache.org/jira/browse/HBASE-12911    Author: Nick Dimiduk, 2015-10-10, 05:21
[HBASE-14584] TestNamespacesInstanceModel fails on jdk8 - HBase - [issue]
...Noticed this in the build output of HBASE-12911. Seems this test has been failing for a long time, got all the way back to 6534583, master~44 and it's still failing there. I guess tests usua...
http://issues.apache.org/jira/browse/HBASE-14584    Author: Nick Dimiduk, 2015-10-10, 03:09
[HBASE-14583] Enabled client-side metrics by default - HBase - [issue]
...Enabling this feature by default for master and branch-1....
http://issues.apache.org/jira/browse/HBASE-14583    Author: Nick Dimiduk, 2015-10-10, 00:04
[HBASE-14575] Reduce scope of compactions holding region lock - HBase - [issue]
...Per Devaraj Das's idea on parent issue, let's see if we can reduce the scope of critical section under which compactions hold the region read lock....
http://issues.apache.org/jira/browse/HBASE-14575    Author: Nick Dimiduk, 2015-10-08, 18:33
[HBASE-14522] Document and/or disable hsperfdata GC pauses - HBase - [issue]
...The JVM by default exports statistics by mmap-ing a file in /tmp (hsperfdata). On Linux, modifying a memory mapped file can block until disk I/O completes, which can be hundreds of milliseco...
http://issues.apache.org/jira/browse/HBASE-14522    Author: Nick Dimiduk, 2015-10-08, 06:56
Re: Introducing Project S2Graph - HBase - [mail # user]
...Very cool, thanks for posting Doyung Yoon!On Wed, Oct 7, 2015 at 10:57 AM, DO YUNG YOON  wrote: ...
   Author: Nick Dimiduk, 2015-10-07, 20:57
7885499 "Typo in FamilyFilter" without associated JIRA - HBase - [mail # dev]
...Heya folks,I noticed the above commit is lacking a subject of the proper format.What's the JIRA for this change? Mind reverting and re-applying with titleas JIRA and Subject? Should be somet...
   Author: Nick Dimiduk, 2015-10-07, 19:28
[expand - 1 more] - Re: hbase.bucketcache.percentage.in.combinedcache with ioengine=<FILE ON SSD> on HBase 0.98 - HBase - [mail # user]
...Configuring offheap cache in 0.98 is a huge PITA. There are some exampleconfigs [0] linked from my old blog post [1], maybe that's a startingpoint? I also worked with our docs team to get th...
   Author: Nick Dimiduk, 2015-10-06, 20:03
Re: Hadoop streaming with HBase as data sink - HBase - [mail # user]
...Maybe run more thrift gateways? Maybe one on each host running map tasksand have the tasks talk to localhost. That way your job doesn't bottleneckthrough a single thrift server.+1 :)On Fri, ...
   Author: Nick Dimiduk, 2015-10-06, 19:53
[HBASE-10820] Bulkload: something is going bananas with '_tmp' - HBase - [issue]
...While working on HBASE-10818, I noted the following in my logs2014-03-24 15:26:25,283 INFO  [RpcServer.handler=24,port=52056] regionserver.HStore: Successfully loaded store file file:/U...
http://issues.apache.org/jira/browse/HBASE-10820    Author: Nick Dimiduk, 2015-10-02, 15:48
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB