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RE: How well does HBase run on low/medium memory/cpu clusters? - HBase - [mail # user]
...d? Disk bound?  I would say HBase (RegionServers) are more memory bound.  -Anoop- ________________________________________ From: David Parks [[EMAIL PROTECTED]] Sent: Thursday, Oct...
   Author: Anoop Sam John, 2012-10-11, 08:10
[expand - 1 more] - RE: Temporal in Hbase? - HBase - [mail # user]
...Hi Shumin,  Your problem was end_time >= const_st or end_time is null.....  You can make use of FilterList with MUST_PASS_ALL (AND) condition only.. Th is can contain one Single...
   Author: Anoop Sam John, 2012-10-11, 05:10
[expand - 1 more] - RE: bulk deletes - HBase - [mail # user]
...You are right Jerry.. In your use case you want to delete full rows or some cfs/columns only?  Pl s feel free to see the issue HBASE-6942 and give your valuable comments.. Here I am try...
   Author: Anoop Sam John, 2012-10-11, 04:04
[expand - 1 more] - RE: HBase table - distinct values - HBase - [mail # user]
...Hi Ravi          If dept_no is a CF:qualifier, to know all the dept numbers (distin ct or not) you need a full table scan. As Doug said if it is a frequent onl ine q...
   Author: Anoop Sam John, 2012-10-11, 04:01
[expand - 1 more] - RE: connect to the region from coprocessor - HBase - [mail # user]
...rs? All the KVs [columns, versions] corresponding to one rowkey will be always  there in one region. One row is not splittable  -Anoop- ________________________________________ Fro...
   Author: Anoop Sam John, 2012-10-10, 12:41
RE: Column Qualifier space requirements - HBase - [mail # user]
...Qualifier (and sometimes it makes sense)... Yes  it physically repeated for each cell? Yes CF byte[] also physically stored in every cell (every KV)..  At the sto rage level HBase ...
   Author: Anoop Sam John, 2012-10-03, 05:47
RE: Optimizing table scans - HBase - [mail # user]
...much faster is because it returns the only the value for the first column ?  When u set batching=1, it returns all the column values of rows. But one  column value at a time.... FY...
   Author: Anoop Sam John, 2012-09-17, 04:36
RE: Performance of scan setTimeRange VS manually doing it - HBase - [mail # user]
...@Tom I think your guess is correct. When the HFile can not be skipped as the max  and min TS overlap with the given time range, that file will be scanned fu lly and certain rows will be...
   Author: Anoop Sam John, 2012-09-13, 03:56
RE: Getting ScannerTimeoutException even after several calls in the specified time limit - HBase - [mail # user]
...where does this actually happen on server (cluster  ) or client  This happens at both places. When the scan calls with caching= N,  the cl ient will pass this number N to the ...
   Author: Anoop Sam John, 2012-09-12, 05:39
[expand - 1 more] - RE: Using HBase serving to replace memcached - HBase - [mail # user]
...st needs to load all blocks that match the rowkey crieteria and then scan e ach one of them from start to end? With blooms there is optimization in search for a particular column qualifi er ...
   Author: Anoop Sam John, 2012-08-23, 03:50
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