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Re: bulk deletes - HBase - [mail # user]
...Very cool Anoop. I can definitely see how that would be useful.  Lars - the bulk deletes do appear to work. I just wasn't sure if there was something I might be missing since I haven't ...
   Author: Paul Mackles, 2012-10-08, 11:45
Re: Bulk Loads and Updates - HBase - [mail # user]
...Keys in hbase are a combination of rowkey/column/timestamp.  Two records with the same rowkey but different column will result in two different cells with the same rowkey which is proba...
   Author: Paul Mackles, 2012-10-03, 20:12
Re: backup strategies - HBase - [mail # user]
...Hi Rita  By default, the export that ships with hbase writes KeyValue objects to a sequence file. It is a very simple app and it wouldn't be hard to roll your own export program to writ...
   Author: Paul Mackles, 2012-08-16, 11:53
Re: Bulk import - key, value ambiguity - HBase - [mail # user]
...Probably because M/R requires a key and because you want M/R to sort on that key which is required for writing hfiles.  On 8/4/12 8:22 AM, "Ioakim Perros"  wrote:  ...
   Author: Paul Mackles, 2012-08-04, 20:03
hbase and disaster recovery - HBase - [mail # user]
...In case anyone is interested in hbase and disaster recovery, here is a writeup I just posted:  http://bruteforcedata.blogspot.com/2012/08/hbase-disaster-recovery-and-whisky.html  F...
   Author: Paul Mackles, 2012-08-01, 23:04
Re: MR hbase export is failing - HBase - [mail # user]
...I've seen this when writing when exporting to s3 and assumed it was related to write performance. We set hbase.regionserver.lease.period to the same values as the task timeout and it helped ...
   Author: Paul Mackles, 2012-07-24, 19:04
Re: performance of Get from MR Job - HBase - [mail # user]
...One thing we observed with a similar setup was that if we added a reducer and then used something like HRegionPartitioner to partition the data, our GET performance improved dramatically. Wh...
   Author: Paul Mackles, 2012-06-19, 09:24
Re: Shared Cluster between HBase and MapReduce - HBase - [mail # user]
...For our setup we went with 2 clusters. We call one our "hbase cluster" and the other our "analytics cluster". For M/R jobs where hbase is the source and/or sink we usually run the jobs on th...
   Author: Paul Mackles, 2012-06-06, 00:15
Re: region size - HBase - [mail # user]
...Thanks for the tip Doug. Does that boost come largely from the HDFS improvements?  On 5/2/12 7:52 PM, "Doug Meil"  wrote:  ...
   Author: Paul Mackles, 2012-05-03, 01:00
RE: export/import for backup - HBase - [mail # user]
...Import was run as an M/R job on the same configuration as the export (15 no des, 5 tasks per node). Nodes are 8 cores with 23GB of total RAM (6GB for h base RS). As far as I could tell, ever...
   Author: Paul Mackles, 2012-02-20, 21:58
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