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[HBASE-11748] Cleanup and add pool usage tracing to Compression - HBase - [issue]
...Add trace-level messages for tracking codec reuse. Cleanup whitespace. Remove commented code....
http://issues.apache.org/jira/browse/HBASE-11748    Author: Nick Dimiduk, 2014-08-15, 06:52
Re: Four nodes HBase cluster configuration - HBase - [mail # user]
...This is a fine role assignment if HA is not required. For true HBase HAyou'll need at least HA namenode, multiple HBase masters, and a zookeeperquorum.On Thursday, August 14, 2014, Dongsu Le...
   Author: Nick Dimiduk, 2014-08-14, 21:51
Re: blockcache usage - HBase - [mail # user]
...I'm not aware of specifically this experiment. You might have a look at ourHeapSize interface and it's implementations for things like HFileBlock.On Tue, Aug 12, 2014 at 11:05 PM, abhishek10...
   Author: Nick Dimiduk, 2014-08-14, 20:21
Re: Hbase Read/Write poor performance. Please help! - HBase - [mail # user]
...Have you looked at the performance guidelines in our online book?http://hbase.apache.org/book.html#performancehttp://hbase.apache.org/book.html#casestudies.perftroubOn Wed, Aug 13, 2014 at 8...
   Author: Nick Dimiduk, 2014-08-13, 16:01
[expand - 2 more] - Re: blockcache 101 - HBase - [mail # dev]
...Nice work!On Friday, August 8, 2014, Stack  wrote: ...
   Author: Nick Dimiduk, 2014-08-09, 19:44
[VOTE] The 1st hbase 0.94.22 release candidate is available for download - HBase - [mail # dev]
...- verified md5 [✓]- verified asc [✓]- build and test default profile with Oracle 1.6.0_31 [✓]Tests run: 926, Failures: 0, Errors: 0, Skipped: 2- build and test default profile with Oracle 1....
   Author: Nick Dimiduk, 2014-08-08, 04:39
Re: How to turn on tracing on HBase? - HBase - [mail # user]
...You can also have a look at PerformanceEvaluation tool on master (andprobably branch-1 and 0.98, but I don't recall exactly). See what it doeson the client side to enable tracing. IIRC, the ...
   Author: Nick Dimiduk, 2014-08-08, 03:43
Re: what label is used for issues that are good on ramps for new contributors? - HBase - [mail # dev]
...Is "noob" really "pejorative"? If you must change it, I prefer "beginner".I do like having a distinction separate from the severity of the ticket;the criticality is orthogonal to how complex...
   Author: Nick Dimiduk, 2014-08-05, 18:48
[expand - 1 more] - Re: Calculate number of records in write buffer - HBase - [mail # user]
...Nicolas's patch there on 11353 includes a nice test. A good way to startverifying what's broken and what isn't would be to add a similar test forthe metric you're looking at (if it doesn't a...
   Author: Nick Dimiduk, 2014-08-04, 22:07
Re: Unable to build Oozie on Hbase 0.98.3 - HBase - [mail # user]
...Your maven output says "build success" at the end.Anyway, this is more of an Oozie list question than HBase. 0.94 and 0.98have some API incompatibilities, so Oozie will need to address those...
   Author: Nick Dimiduk, 2014-08-02, 00:11
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NEW: Monitor These Apps!
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