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Re: Fastest way to find is a row exist? - HBase - [mail # user]
...Why do you want to remove the bloom filter?  I think you should keep the bloom filter but also use the KeyOnlyFilter to cut down on data transferred over the wire.   On Fri, Jan 4,...
   Author: Bryan Beaudreault, 2013-01-04, 20:45
Re: reginoserver's log analysis? - HBase - [mail # user]
...It would delay this problem at least.  At the end of the day your application and use case is what determines what you should do. It seems to me you may be hot spotting this region. &nb...
   Author: Bryan Beaudreault, 2013-01-03, 18:32
Re: Error: java.io.IOException: Could not seek StoreFileScanner[HFileScanner for reade - HBase - [mail # user]
...We've seen this at times too and would be interested to know what causes it.  Until you get a better answer, one thing we found helps is to move the region via the hbase shell.  Fo...
   Author: Bryan Beaudreault, 2012-12-28, 19:07
Re: 答复:  答复: what is the max size for one region and what is the max size of region for one server - HBase - [mail # user]
...0.90.x supports up to 4GB region sizes max, not 40. You would need to upgrade to 0.92.x at least to go higher than that.   Sent from iPhone.  On Dec 17, 2012, at 9:31 AM, Doug Meil...
   Author: Bryan Beaudreault, 2012-12-17, 14:39
Re: How to pick which region(s) to major compact? - HBase - [mail # user]
...I've looked into this in the past, and I haven't implemented anything yet.  But I have a couple notes:  1) From what I can tell hbase doesn't currently provide you with an API you ...
   Author: Bryan Beaudreault, 2012-12-12, 23:46
Re: Bulk loading (and/or major compaction) causing OOM - HBase - [mail # user]
...Merging is not an option for us, because we cannot afford to bring our cluster down.  Also, we are not yet convinced that our cluster can handle such large regions due to all the OOM is...
   Author: Bryan Beaudreault, 2012-12-08, 21:08
Re: Scan exception when running MR - HBase - [mail # user]
...Oh, sorry.  This sounds like a version mismatch.  Do you have the same version installed on your servers and being pulled in your hadoop job?  On Mon, Oct 22, 2012 at 12:32 PM...
   Author: Bryan Beaudreault, 2012-10-22, 17:13
Re: Region in Transition - HBase - [mail # user]
...In the past when I have seen regions get locked in transition it is usually a problem with the HMaster.  Seemingly a transition starts and succeeds between region servers, but the HMast...
   Author: Bryan Beaudreault, 2012-10-15, 14:51
Re: more regionservers does not improve performance - HBase - [mail # user]
...I recommend turning on debug logging on your region servers.  You may need to tune down certain packages back to info, because there are a few spammy ones, but overall it helps.  Y...
   Author: Bryan Beaudreault, 2012-10-12, 19:46
Re: Force the number of map tasks in MR? - HBase - [mail # user]
...JM,  Are you trying to use HTableInputFormat to scan HBase from map reduce?  If so, there is a map task per region so you should have 25 regions.  If only 2 are running at onc...
   Author: Bryan Beaudreault, 2012-10-12, 01:10
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