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Re: Query on analyze big data with Hbase - HBase - [mail # user]
...You should consider looking over the available HBase resources There's an online book http://hbase.apache.org/book.html  And there's Lars George's book from O'Reilly (http://shop.oreill...
   Author: Cosmin Lehene, 2011-11-16, 10:22
Re: HBase 0.90.4 missing data in production - HBase - [mail # dev]
...Dropping in.  Vladimir, can you check if there's any time skew between servers? (I can't remember the exact details, but once we ended up with .META. region location (cells) that were d...
   Author: Cosmin Lehene, 2011-11-07, 17:07
Re: TableInputFormat improvement to handle lots of small regions - HBase - [mail # dev]
...We overridden getSplits so that it does super.getSplits and then using a co nfiguration variable (splitsPerMap) will output another set of splits that  basically merges (start/stop row ...
   Author: Cosmin Lehene, 2011-06-22, 12:08
Re: connection loss for /hbase - HBase - [mail # user]
...Hi Geoff,  The default number of connections in ZK is 10 I believe. You don't need  32K for 100 mappers. But it would help to increase that.  Here's my answer for a related pr...
   Author: Cosmin Lehene, 2011-06-04, 09:56
Re: Where to checkout build.xml - HBase - [mail # user]
...Hi jiajun,  Hbase 0.90 builds with Maven. Here are some details http://wiki.apache.org/hadoop/Hbase/MavenPrimer  Cosmin On Apr 5, 2011, at 12:04 PM, 陈加俊 wrote:  I want to buil...
   Author: Cosmin Lehene, 2011-04-05, 09:38
Re: I lost the table '.META.' ,could I restore the other tables by files of hdfs - HBase - [mail # user]
...Also 0.20 is very old. You should upgrade to 0.90 asap  ;)  Cosmin On Mar 30, 2011, at 12:19 PM, Cosmin Lehene wrote:  ...
   Author: Cosmin Lehene, 2011-03-30, 09:24
Re: using date as key - HBase - [mail # user]
...Lior,   If you already know the key distribution you can create all the regions in  advance.  Are you inserting a single day or multiple days?  5X is a good improvement. ...
   Author: Cosmin Lehene, 2011-03-28, 07:04
Re: HBase not scaling well - HBase - [mail # user]
...Hi Hari,   Could you do some realtime monitoring (htop, iptraf, iostat) and report the  results? Also you could add some timers to the map-reduce operations: meas ure average opera...
   Author: Cosmin Lehene, 2010-10-29, 08:05
Re: [VOTE] Release 'development release' HBase 0.89.2010924 rc1? - HBase - [mail # dev]
...+1 I tested the build over the weekend running MR jobs and some write performa nce testing. It looks good.   Cosmin  On Sep 25, 2010, at 2:38 AM, Stack wrote:  branch. e-0.89....
   Author: Cosmin Lehene, 2010-10-04, 15:33
Re: High OS Load Numbers when idle - HBase - [mail # user]
...George,   Did you try to monitor the CPU in real-time to see any patterns? Does it do  any CPU spikes? Even so, the load averages should be matched against the n umber of cores/hyp...
   Author: Cosmin Lehene, 2010-08-18, 07:26
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