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答复: Multiple regionservers on a single node - HBase - [mail # user]
...On Fri, Dec 7, 2012 at 10:58 AM, 谢良  wrote:  > Emm, have you tried to tune your GC deeply? please provide the exactly VM > options and jdk version and GC logs.. > In our t...
   Author: Adrien Mogenet , 2012-12-10, 22:21
Minor compactions and impact of number of HFiles within a Store - HBase - [mail # user]
...Hi there,  I was about to tune major/minor compaction behavior and I'm wondering what are the exact (negative) aspects of handling lots (let say between 3 and 20) HFiles within a single...
   Author: Adrien Mogenet , 2012-12-08, 19:19
question about region assignment upon re-enable table - HBase - [mail # user]
...Same answer ; just wait for the StochasticLoadBalancer (currently in trunk)   On Wed, Dec 5, 2012 at 7:05 AM, Stack  wrote:  > On Tue, Dec 4, 2012 at 8:57 PM, Liu, Raymond ...
   Author: Adrien Mogenet , 2012-12-05, 07:16
HBase:The Definitive Guide book - HBase - [mail # user]
...I'm writing this quick answer with my memories (I read this book maybe one year ago) : it's still awesome to understand concepts, good recipes, HFiles and general tuning (compactions, etc.) ...
   Author: Adrien Mogenet , 2012-11-29, 10:13
Lucene instead of HFiles? - HBase - [mail # user]
..."Don't bother trying this in production" ;-)  1. Are you sure lookup by key are faster ? 2. Updating Lucene files in a lock-free maneer and ensuring good concurrency can be a bit tricky...
   Author: Adrien Mogenet , 2012-10-05, 06:36
HBase User Group in Paris - HBase - [mail # user]
...I'm in !  On Tue, Oct 2, 2012 at 5:21 PM, Bertrand Dechoux  wrote: > And we are looking for speakers. It does not need to be formal/theoretical > presentations. It can also b...
   Author: Adrien Mogenet , 2012-10-02, 18:04
[expand - 1 more] - HBase 'Real-Time' reads? - HBase - [mail # user]
...I think you misunderstand concept of "memstore". That's just the name of the temporary in-memory storage. Each region has its own memstore, and thus it's located on the regionserver itself. ...
   Author: Adrien Mogenet , 2012-09-12, 21:28
[HBASE-6722] fixHdfsOrphans won't work for first/end regions - HBase - [issue]
...When a .regioninfo is missing on the first (or final) region, it will try to determine the startKey (or endKey) based on what it has been seen on the HDFS.However, for these special cases an...
http://issues.apache.org/jira/browse/HBASE-6722    Author: Adrien Mogenet , 2012-09-05, 20:00
bulk loading - region creation/pre-spliting - HBase - [mail # user]
...If you plan pre-splitting regions, look at the classes exposed by RegionSplitter (http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/util/RegionSplitter.html).  Are you keys String...
   Author: Adrien Mogenet , 2012-08-30, 06:50
[expand - 3 more] - Client receives SocketTimeoutException (CallerDisconnected on RS) - HBase - [mail # user]
...On Fri, Aug 24, 2012 at 6:52 PM, N Keywal  wrote: > Hi Adrien, > >>  What do you think about that hypothesis ? > > Yes, there is something fishy to look at here. ...
   Author: Adrien Mogenet , 2012-08-28, 06:34