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Re: hbase 0.90.1 upgrade issue - mapreduce job - HBase - [mail # user]
...Does this help?: http://search-hadoop.com/m/JI3ro1EKY0u  On Tue, Mar 15, 2011 at 7:39 PM, Venkatesh  wrote:...
   Author: Suraj Varma, 2011-03-17, 04:06
Re: Is there any influence to the performance of hbase if we use TTL to clean data? - HBase - [mail # user]
...So, yes, a major compaction is disk io intensive and can influence performa nce.  Here's a thread on this http://search-hadoop.com/m/PI1dl1pXgEg2 And here's a more recent one: http://se...
   Author: Suraj Varma, 2011-03-17, 03:28
Re: HTable thread safety in 0.20.6 - HBase - [mail # dev]
...Thanks, tsuna for the detailed response. I totally agree with your points.   In light of the above, I think it would be worth the improvement to decouple the client from the Hadoop jar....
   Author: Suraj Varma, 2011-03-12, 11:49
Re: major hdfs issues - HBase - [mail # user]
...This indicates that you are oversubscribed on your RAM to the extent that the JVM doesn't have any space to create native threads (which are allocated outside of the JVM heap.)  You may...
   Author: Suraj Varma, 2011-03-12, 11:31
Re: Modeling Multi-Valued Fields - HBase - [mail # user]
...How do you plan on accessing this file name/ file path data? I mean, what are you "Get" patterns?  I would suggest that you search these mailing lists for several discussion on schema d...
   Author: Suraj Varma, 2011-03-12, 00:46
Re: Hbase shell does not start - HBase - [mail # user]
...Thanks for posting back -  nice to know that it worked.  On Thu, Mar 10, 2011 at 7:39 PM, Sumeet M Nikam  wrote:  ...
   Author: Suraj Varma, 2011-03-11, 13:40
Re: How to copy HTable from one cluster to another cluster ? - HBase - [mail # user]
...What HBase version are you on? If you are on 0.90+ there is a Copy Table MR job that would do this for you . http://hbase.apache.org/docs/current/api/org/apache/hadoop/hbase/mapreduce/ CopyT...
   Author: Suraj Varma, 2011-03-09, 17:26
Re: about hbase transaction - HBase - [mail # user]
...HBase is not a transactional datastore like you seem to think. Read this: http://hbase.apache.org/acid-semantics.html   On Tue, Mar 8, 2011 at 12:05 AM, 梁景明  wrote:  ransactio...
   Author: Suraj Varma, 2011-03-08, 14:18
Re: Does HBase use spaces of HDFS? - HBase - [mail # user]
...In the standalone mode, HBase uses the local file system as its storage. In pseudo-distributed and fully-distributed modes, HBase uses HDFS as the storage. See http://hbase.apache.org/notsoq...
   Author: Suraj Varma, 2011-03-08, 06:25
Re: Hbase row key & MapReduce - HBase - [mail # user]
...Please check these threads: http://www.search-hadoop.com/m/n4Y0229BfSo http://search-hadoop.com/m/kgJTpd2oW2/salt&subj=RE+Row+Keys http://hbase.apache.org/schema.html#d0e2139    On...
   Author: Suraj Varma, 2011-03-01, 17:45
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