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Re: Region server crash while syncing HLog - HBase - [mail # user]
...This is something to do with HDFS also.  Regarding data loss, the client should have known that the put has failed.  So there should not be silent data loss as far as i can think o...
   Author: ramkrishna vasudevan, 2013-01-23, 18:01
Re: About HBase Region Flushes - HBase - [mail # user]
...Hi Varun  Generally when the memstore size has reached for the region, the writes are not blocked except for a fraction of a time till a new memstore is created so that new puts can go ...
   Author: ramkrishna vasudevan, 2013-01-23, 02:54
Re: [ANNOUNCE] New Apache HBase PMC members: Jimmy Xiang and Nicolas Liochon - HBase - [mail # dev]
...Congrats Jimmy and N.  Regards Ram  On Tue, Jan 22, 2013 at 4:29 AM, Mathias Herberts  wrote:  ...
   Author: ramkrishna vasudevan, 2013-01-22, 03:58
Re: Custom Filter and SEEK_NEXT_USING_HINT issue - HBase - [mail # user]
...On Mon, Jan 21, 2013 at 1:46 PM, Eugeny Morozov wrote:   Scanning process does not start parallely on all regions.  Once a start row is specified with the scan, the corresponding r...
   Author: ramkrishna vasudevan, 2013-01-21, 08:56
Re: Loading data, hbase slower than Hive? - HBase - [mail # user]
...Hive is more for batch and HBase is for more of real time data.  Regards Ram  On Thu, Jan 17, 2013 at 10:30 PM, Anoop John  wrote:  ...
   Author: ramkrishna vasudevan, 2013-01-17, 17:09
Re: Coprocessor / threading model - HBase - [mail # user]
...In Anoop's soln its basicallly the put happens directly on the index region rather than doing a put thro HTable.  Regards Ram  On Sun, Jan 13, 2013 at 9:28 AM, Andrew Purtell wrote...
   Author: ramkrishna vasudevan, 2013-01-13, 10:04
[expand - 7 more] - Re: HBase - Secondary Index - HBase - [mail # user]
...As far as i can see its more related to using the coprocessor framework in this soln that helps us in a great way to avoid unnecessary RPC calls when we go with Region level indexing.  ...
   Author: ramkrishna vasudevan, 2013-01-09, 04:11
Re: reginoserver's log analysis? - HBase - [mail # user]
...You need to see your application to see how much is your rate of puts.  Also how many column families do you have? All these factors will help you in determining your memstore size. &nb...
   Author: ramkrishna vasudevan, 2013-01-03, 16:24
Re: Hmaster cannot start running again - HBase - [mail # user]
...Hi Dalia  The Namenode SafeMode Exception should not be related with number of region servers. Any turn off safemode and try restarting your cluster.  May be internally namenode is...
   Author: ramkrishna vasudevan, 2013-01-03, 04:22
Re: Issue on hbase table import to hdfs - HBase - [mail # user]
...What type of data you are trying to import?  On Wed, Jan 2, 2013 at 3:55 PM, tamil  wrote:  ...
   Author: ramkrishna vasudevan, 2013-01-02, 16:36
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