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Re: Co-Processor in scanning the HBase's Table - HBase - [mail # user]
...I think that if your intention is to do some kind of scan filtering on the server side then maybe an EndPoint coprocessor would be more fitting. You can iterate over the InternalScanner and ...
   Author: Amit Sela, 2013-02-21, 17:28
Re: increment counters via bulk upload in HBase - HBase - [mail # user]
...I don't know if incrementing using MapReduce is the best way to go.... Why not run a multi threaded java process that reads the sequence file and executes the increments? The key could be th...
   Author: Amit Sela, 2013-02-16, 17:09
Re: RowKey design with hashing - HBase - [mail # user]
...If you have a good distribution of domains then use the reversed domain key, it will allow you to scan over domains faster.  On Wed, Feb 13, 2013 at 10:40 AM, Alexander Ignatov wrote: &...
   Author: Amit Sela, 2013-02-13, 09:01
Re: searching functionality in Hbase - HBase - [mail # user]
...If you are going to use EndPoint coprocessor check this experiment: http://hbase-coprocessor-experiments.blogspot.co.il/2011/05/extending.html  it shows when EndPoint should be preferre...
   Author: Amit Sela, 2013-02-07, 13:15
Re: Pre-split Region Boundaries - HBase - [mail # user]
...We are pre-splitting our tables before bulk loading also but we don't use the RegionSplitter.  We split manually (we did some testing and found the optimal split points) by putting into...
   Author: Amit Sela, 2013-01-28, 11:51
Re: HBASE-7114 Increment does not extend Mutation but probably should - HBase - [mail # user]
...Hi Andrew, I think you mentioned it before when I had questions about aggregation using RegionObserver. I checked it out but since our use case is quite simple and there is only one aggregat...
   Author: Amit Sela, 2013-01-26, 19:08
Re: Loading Endpoint coprocessor from shell - HBase - [mail # user]
...Forget about it, my bad :)  On Wed, Jan 16, 2013 at 2:48 PM, Amit Sela  wrote:  ...
   Author: Amit Sela, 2013-01-16, 12:56
Re: hbase olap cube - HBase - [mail # user]
...Hi Oleg,  Try this  http://github.com/urbanairship/datacube Andrew Purtell recommended it here when I had a similar need. I didn't need things like sum and average so I ended up us...
   Author: Amit Sela, 2013-01-16, 12:13
Re: Can a RegionObserver coprocessor increment counter of a row key that may not belong to the region ? - HBase - [mail # user]
...Got it, so if my coprocessor is aggregating through the Increment that was executed and I am using the aggregated values to increment a new counter in the *same row and same FAMILIES *but a ...
   Author: Amit Sela, 2012-12-06, 13:42
Re: scan is slower after bulk load - HBase - [mail # user]
...I gave it a few more shots and it was back to normal... Bulk loading is faster but more important (for us) it's more stable and doesn't cause full GC in the region server even if loading it ...
   Author: Amit Sela, 2012-11-23, 17:22
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