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restriction on the number of tables in hbase and its impact on performance - HBase - [mail # user]
...I have asked this question on stackoverflow - http://stackoverflow.com/questions/12066856/restriction-on-the-number-of-tables-in-hbase-and-its-impact-on-performance  Also asking the sam...
   Author: Rohit Kelkar, 2012-08-24, 05:01
Re: Migrating Tables with primary key and foreign key from mysql to Hbae - HBase - [mail # user]
...Neetu, In my opinion it is a bad idea to "copy paste" a normalized schema from an RDBMS to a nosql database like hbase. Hbase encourages denormalization. Hbase does not support indexing out ...
   Author: Rohit Kelkar, 2012-03-28, 05:30
Re: What about storing binary data(e.g. images) in HBase? - HBase - [mail # user]
...Jacques, I agree that storing files (lets say greater than 15mb) would make the namenode run out of space. But what if I make my blocksize=15mb ? Even I am having the same issue that Konrad ...
   Author: Rohit Kelkar, 2012-03-05, 05:12
Re: Couple of schema design questions - HBase - [mail # user]
...One table per day just doesn't make sense. If your most frequent use case is retrieving data for a single day then you might want to design your row keys to include date or simply rowKey = "...
   Author: Rohit Kelkar, 2012-02-27, 08:11
Re: Up and running HDFS / HBase Installation - HBase - [mail # user]
...Try absolute path from / $hadoop dfs -ls /hbase  On Fri, Feb 24, 2012 at 4:15 PM, Admin Absoftinc  wrot e:...
   Author: Rohit Kelkar, 2012-02-24, 10:57
[expand - 3 more] - Re: advice needed on storing large objects on hdfs - HBase - [mail # user]
...Ioan, Sorry for messing up your name. Your strategy sounds interesting. I will try that out and post the results/problems if and when ...  - Rohit Kelkar  On Mon, Jan 30, 2012 at 1...
   Author: Rohit Kelkar, 2012-01-30, 08:19
Re: Important Question - HBase - [mail # user]
...Dalia, You mentioned realtime, which of your use cases are realtime and whats an acceptable response time for it? You may want to try a combination of sql and nosql. Nosql to store your data...
   Author: Rohit Kelkar, 2012-01-27, 07:06
Re: schema optimisation - go for multiple tables, rows or column families? - HBase - [mail # user]
...Tom, think of it this way (guys correct me if I am wrong)  Each column family translates to 1 file on hdfs. You have 3 cases - case 1: Multiple tables - single key - single column famil...
   Author: Rohit Kelkar, 2012-01-09, 14:09
Re: No. of families - HBase - [mail # user]
...When we say less column families, how much is less? Is this guided by a ratio of the number of rows stored in the Htable to number of column families. Or number of tables to number of column...
   Author: Rohit Kelkar, 2011-12-29, 05:01
[expand - 2 more] - Re: mapper not running on the same region server - HBase - [mail # user]
...Hi Lars, by naming issue, do you mean if the zookeeper nodes and hbase nodes are correctly configured? I observed that this issue occurs intermittently. Sometimes the mapper gets scheduled o...
   Author: Rohit Kelkar, 2011-12-09, 09:29
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