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Re: GET performance degrades over time - HBase - [mail # user]
...This generally happens when the same block is accessed for the HFile.  Are you seeing any contention on the HDFS side?  Regards Ram   On Thu, May 16, 2013 at 4:19 PM, Bing Jia...
   Author: ramkrishna vasudevan, 2013-05-16, 16:28
Re: Where is scanner startRow used - HBase - [mail # dev]
...If this is a regression (but i don't think it to be) may be if you observe this behaviour in any recent versions or it was like that in all the version that you had used earlier that made yo...
   Author: ramkrishna vasudevan, 2013-05-16, 03:23
[expand - 1 more] - Re: Error about rs block seek - HBase - [mail # user]
...Is it possible to reproduce this with simple test case based on your usecase and data? You can share it so that can really debug the actual problem. Regards Ram   On Mon, May 13, 2013 a...
   Author: ramkrishna vasudevan, 2013-05-13, 08:34
[expand - 1 more] - Re: Secure HBase upon Replication - HBase - [mail # user]
...For instance 0.94.7 and 0.94.7-security?  For the 0.94 versions you need to use the tar ball that has security in it.  In trunk it is not so.  I should have been clear on it. ...
   Author: ramkrishna vasudevan, 2013-05-09, 10:10
[expand - 4 more] - Re: HLogSplit error with hadoop-2.0.3-alpha and hbase trunk - HBase - [mail # dev]
...is not EOF why would it return less bytes?  Infact this happened for an entry in the middle of the HLog.  Write some data using LoadTestTool.  Try to use the HLog tool to read...
   Author: ramkrishna vasudevan, 2013-05-08, 18:23
Re: EC2 Elastic MapReduce HBase install recommendations - HBase - [mail # user]
...Your EC2 instance is having EBS or instance type as the data store? If it is EBS then the latency is bit high and this is as per Andrew's experience.  Regards Ram   On Wed, May 8, ...
   Author: ramkrishna vasudevan, 2013-05-08, 02:41
Re: Cached an already cached block (HBASE-5285) - HBase - [mail # user]
...Just to confirm you are getting this with LruBlockCache? If with LruBlockCache then the issue is critical.  Because we have faced similar issue with OffHeapCache.  But that is not ...
   Author: ramkrishna vasudevan, 2013-05-06, 05:45
[expand - 1 more] - Re: Poor HBase map-reduce scan performance - HBase - [mail # user]
...Sorry.  I think someone hijacked this thread and I replied to this. Naidu, Request you to post a new thread if you have queries and do not hijack the thread.  Regards Ram   On...
   Author: ramkrishna vasudevan, 2013-05-01, 07:29
Re: writing and reading from a region at once - HBase - [mail # user]
...Check this out http://www.slideshare.net/cloudera/3-learning-h-base-internals-lars-hofhansl-salesforce-final  Regards Ram   On Mon, Apr 29, 2013 at 7:59 PM, Aaron Zimmerman  w...
   Author: ramkrishna vasudevan, 2013-04-29, 16:26
Re: max regionserver handler count - HBase - [mail # user]
...stabilizes. So you mean that when the handler count is more than 5k this happens when it is lesser this does not.  Have you repeated this behaviour?  What i doubt is when you say b...
   Author: ramkrishna vasudevan, 2013-04-29, 02:37
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