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[HBASE-4661] Ability to export the list of files for a some or all column families for a given region - HBase - [issue]
...Should be able to query the regionservers to figure out the list of files in one/some/all column families for a given regions to determine which files to copy for a backup....
http://issues.apache.org/jira/browse/HBASE-4661    Author: Karthik Ranganathan, 2012-03-02, 06:15
[expand - 1 more] - Re: Delete client API. - HBase - [mail # dev]
...@Mikael:  >  By virtue of the fact that the regionserver is the only entity writing updates for a given key (each key belongs to exactly one RS) this will also be a global order...
   Author: Karthik Ranganathan, 2012-01-18, 20:04
Re: on HBase 1.0 - HBase - [mail # dev]
...My 2 cents - whatever branch we decide to put out as 1.0, I think we should have a stability/testing phase without adding too many features, so that it is pretty stable to end users.   ...
   Author: Karthik Ranganathan, 2011-11-17, 00:01
HBase backups architecture - HBase - [mail # dev]
...Hey guys  Have written a short blurb about the HBase backups solution, please take a  look and let me know if something is not clear/there are not enough details . It deals with th...
   Author: Karthik Ranganathan, 2011-11-16, 19:25
Re: Upgrading master hardware - HBase - [mail # user]
...Mark,  If the NN goes down the entire HBase cluster will be halted. If the HMaster is down, you will not be able to get regions assigned (in case any regionserver goes down).  So t...
   Author: Karthik Ranganathan, 2011-11-16, 18:53
Re: hbase.regionserver.handler.count - HBase - [mail # user]
...@Mark - like Doug said its dependent on the hardware SKU and load type. We (at FB) are using 300 handlers on a box with 16 cores and 48G (24G for RS).  On 11/15/11 9:43 AM, "Mark"  ...
   Author: Karthik Ranganathan, 2011-11-15, 18:54
Re: Please welcome the dynamic K-squared duo, Kannan and Karthick, our latest hbase committers! - HBase - [mail # dev]
...Thanks guys!  Karthik  On 10/31/11 2:31 PM, "Doug Meil"  wrote:  ...
   Author: Karthik Ranganathan, 2011-10-31, 23:22
Re: s/Karthick/Karthik/ in "Please welcome the dynamic K-squared duo, Kannan and Karthick, our latest hbase committers!" - HBase - [mail # dev]
...No worries at all  Stack :)  Thanks guys, excited to be a part of the team!  Thanks Karthik  On 10/31/11 12:29 PM, "Stack"  wrote:  ...
   Author: Karthik Ranganathan, 2011-10-31, 23:19
Re: pre splitting tables - HBase - [mail # user]
... > This means that the data will change with the number of machines - so all your data will map to different regions if you add a new machine to your cluster.   > The disadva...
   Author: Karthik Ranganathan, 2011-10-25, 04:22
[expand - 2 more] - Re: HBase backups - HBase - [mail # dev]
...@Ted - awesome, I can edit now (havent tried saving anything yet though).  @Andrew, @Stack - no worries, we can put it into the book, whatever works. I can make it plain-text if needed....
   Author: Karthik Ranganathan, 2011-10-19, 23:30
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