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Re: FILE_BYTES_READ counter missing for HBase mapreduce job - HBase - [mail # user]
...Addition info: The mapreduce job I run is a map-only job. It does not have reducers and it write data directly to hdfs in the mapper.  Could this be the reason why there's no value for ...
   Author: Haijia Zhou, 2013-09-05, 18:50
Re: Is "synchronized" required? - HBase - [mail # user]
...Hi, Bing,   Not sure about your scenario but HTable class is not thread safe for neither reads nor write.  If you consider writing/reading from a table in a multiple-threaded way, ...
   Author: Haijia Zhou, 2013-02-04, 20:42
Question about regions splitting - HBase - [mail # user]
...I have a question about how regions split. Let's say we have a 2GB region and upon splitting the region will be splitted into two 1GB sub-regions. My first question is: will the two 1GB sub-...
   Author: Haijia Zhou, 2012-07-20, 21:44
Re: Is htable.delete(List<Delete>) transactional? - HBase - [mail # user]
...I see, thanks a lot!  On Mon, Apr 16, 2012 at 7:41 PM, Ian Varley  wrote:  ...
   Author: Haijia Zhou, 2012-04-16, 23:47
Re: Scan.addFamiliy reduces results - HBase - [mail # user]
...I have the same confusion. Say if I added three column families A, B anc C to the scan, now if a row has data for column family B and C but no data for A, then it won't be returned  in ...
   Author: Haijia Zhou, 2012-03-15, 17:12
Re: Question regarding filtering by column families - HBase - [mail # user]
...sorry, the "*" is typo, or caused by copy-and-paste-from-eclipse  On Tue, Mar 6, 2012 at 1:59 PM, T Vinod Gupta  wrote:  ...
   Author: Haijia Zhou, 2012-03-06, 19:16
RE: hbase delete operation is very slow - HBase - [mail # user]
...Thanks for the suggestion. I did use List with size 1000, actually  the performance was not that different from deleting one row at a time. I investigated HRegion.delete() method, my un...
   Author: Haijia Zhou, 2012-02-22, 15:02
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