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Re: hbase error - HBase - [mail # user]
...Hi Wanli,  Somehow, Your ".META." table is having problem. Read more about meta table here: http://hbase.apache.org/book/arch.catalog.html  Try to do a restart and and see whether ...
   Author: anil gupta, 2012-11-21, 17:06
Re: Problem with xml data in hbase bulk loading - HBase - [mail # user]
...Hi,  There are two option: 1. Fix the input file so that one line contains an entire record. 2. Write a custom input format to read record which spans multiple lines. If you do this the...
   Author: anil gupta, 2012-11-21, 07:44
Re: Problem deleting neighboors with timestamp=0 - HBase - [mail # user]
...Hi Chris,  My two cents... IMHO, onus of ensuring the right Timestamp value should always be on the application logic rather than HBase. Essentially, timestamp is long number in HBase. ...
   Author: anil gupta, 2012-11-19, 07:44
Re: Hive and Hbase performance - HBase - [mail # user]
...Hi Dalia,  The usual and short answer is Yes. Both, HBase and Hive will provide better performance on adding more nodes since they provide horizontal scalability.  HTH, Anil  ...
   Author: anil gupta, 2012-11-18, 00:51
Re: Using doubles and longs as ordering row values - HBase - [mail # user]
...Hi Jonathan,  If possible try to avoid using Double for rowkey because Double has precision problems. Here is more details about problems with double: 1. http://stackoverflow.com/questi...
   Author: anil gupta, 2012-11-05, 22:57
[expand - 1 more] - Re: SingleColumnValueFilter for empty column qualifier - HBase - [mail # user]
...Hi Jonathan,  Then in that case SingleColumnValueFilter will not work. SingleColumnValueFilter works on the value of a cell rather than ColumnQualifier name. I have never heard of a bui...
   Author: anil gupta, 2012-11-01, 02:38
[expand - 5 more] - Re: Best technique for doing lookup with Secondary Index - HBase - [mail # user]
...Hi Danis,  I downloaded the zip file and copied the source code to my HBase0.92.1 project. It compiled successfully. I am going through the source code right now. Is it possible for you...
   Author: anil gupta, 2012-10-26, 16:43
[expand - 7 more] - Re: Hbase import Tsv performance (slow import) - HBase - [mail # user]
...@Jonathan,  As per Anoop and Ram, WAL is not used with bulk loading so turning off WAL wont have any impact on performance.  On Thu, Oct 25, 2012 at 1:33 PM, anil gupta  wrote...
   Author: anil gupta, 2012-10-25, 20:35
[expand - 7 more] - Re: Unable to add co-processor to table through HBase api - HBase - [mail # user]
...It worked. :)  On Thu, Oct 18, 2012 at 10:54 PM, Ramkrishna.S.Vasudevan  wrote:    Thanks & Regards, Anil Gupta...
   Author: anil gupta, 2012-10-19, 16:07
[expand - 1 more] - Re: Slow scanning for PrefixFilter on EncodedBlocks - HBase - [mail # user]
...Hi Lars,  There is a specific use case for this:  Table: Suppose i have a rowkey:  Use case: I would like to get all the events of customer_id=123. Case 1: If i only use start...
   Author: anil gupta, 2012-10-17, 19:25
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB