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Re: Problem When Prefetch META table - HBase - [mail # user]
...Hey Andrea,    That is very weird, I hit this similar extremely strange one off issue that I could never reproduce.  After dropping a table doing X amount of inserts, I would ...
   Author: Kevin O'dell, 2013-12-10, 14:17
Re: Maximum number of regions for a table? - HBase - [mail # user]
...Hi Kim,    I would take a look at:  http://hadoop-hbase.blogspot.com/2013/01/hbase-region-server-memory-sizing.html   On Tue, Dec 3, 2013 at 2:42 PM, Kim Chew  wrote...
   Author: Kevin O'dell, 2013-12-03, 19:46
Re: Region server block cache and memstore size - HBase - [mail # user]
...I agree with what Anoop said here, just because they are scans, it doesn't make a lot of sense to turn off your block cache.  Are you trying to save memory?  As for the memstore gl...
   Author: Kevin O'dell, 2013-11-28, 13:50
Re: HBase Region Server crash if column size become to big - HBase - [mail # user]
...John,    Out of Memory Error.  You can add this to your code(assuming it is in your release) scan.setBatch(batch);   On Wed, Sep 11, 2013 at 11:26 AM, John  wrote: &...
   Author: Kevin O'dell, 2013-09-11, 15:30
Re: 0.96.0 keep logging "Memstore is above high water mark" - HBase - [mail # dev]
...JD,    I see what you are saying, I got this mixed up with a different message.  Sorry about that.   On Tue, Sep 3, 2013 at 1:47 PM, Jean-Daniel Cryans wrote:   &nbs...
   Author: Kevin O'dell, 2013-09-03, 17:53
Re: Meta vs Stores / first and last keys and corrupted HFiles. - HBase - [mail # dev]
...This is a good one.  We have discussed checking the HFile, but a new tool would have to be written. Running the current HFile tool; which stepping through 1000s of storefiles would add ...
   Author: Kevin O'dell, 2013-08-26, 19:41
Re: HBase Java client - unknown host: localhost.localdomain - HBase - [mail # user]
...Shengjie,    Looks like you are binding to localhost on your services. Please make sure you correct it so you bind on the interface for zk. On Aug 25, 2013 10:32 AM, "Shengjie Min"...
   Author: Kevin O'dell, 2013-08-25, 16:59
Re: Question about the time to execute joins in HBase! - HBase - [mail # user]
...QQ what is your caching set to? On Aug 22, 2013 11:25 AM, "Pavan Sudheendra"  wrote:  ...
   Author: Kevin O'dell, 2013-08-22, 15:39
Re: How many column families in one table ? - HBase - [mail # user]
...Pablo,    That is correct.   On Mon, Aug 5, 2013 at 10:00 AM, Pablo Medina wrote:     Kevin O'Dell Systems Engineer, Cloudera...
   Author: Kevin O'dell, 2013-08-05, 14:44
Re: Memory distribution for Hadoop/Hbase processes - HBase - [mail # user]
...My questions are : 1) How this thing is working ? It is working because java can over allocate memory. You will know you are using too much memory when the kernel starts killing processes. 2...
   Author: Kevin O'dell, 2013-08-04, 14:42
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