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Re: 30% random performance in 0.95+ - HBase - [mail # dev]
...Actually sending in a separate thread - since it does not really compare different versions of HBase but one version of Block Cache vs FS Cache(through hdfs).   On Sat, Jun 29, 2013 at ...
[+ more]    Author: Varun Sharma, 2013-06-29, 19:13
[HBASE-8815] A replicated cross cluster client - HBase - [issue]
...I would like to float this idea for brain storming.HBase is a strongly consistent system modelled after bigtable which means a machine going down results in loss of availability of around 2 ...
http://issues.apache.org/jira/browse/HBASE-8815    Author: Varun Sharma, 2013-06-28, 04:47
[HBASE-8813] Fix time b/w recoverLease invocations from HBASE 8449 - HBase - [issue]
...The time b/w recover lease attempts is conservative but is still not correct. It does not factor in Datanode heartbeat time intervals....
http://issues.apache.org/jira/browse/HBASE-8813    Author: Varun Sharma, 2013-06-28, 02:08
Question about local reads and HDFS 347 - HBase - [mail # user]
...I was looking at HDFS 347 and the nice long story with impressive benchmarks and that it should really help with region server performance.  The question I had was whether it would stil...
   Author: Varun Sharma, 2013-06-25, 22:10
Re: Writing unit tests against HBase - HBase - [mail # user]
...Hi Christopher, I am looking into getting maven 3.0.4 installed before i start playing with it.  Elliot, does the HBaseTestingUtility thing run only against DFS. I tried to bring up a M...
[+ more]    Author: Varun Sharma, 2013-06-20, 23:36
Re: Replication not suited for intensive write applications? - HBase - [mail # user]
...On Thu, Jun 20, 2013 at 11:10 AM, Asaf Mesika  wrote:   In our tests run on 0.94.7 - we do see ageOfLastShippedOp per queue - so we would see a giant number for the recovered queue...
[+ more]    Author: Varun Sharma, 2013-06-20, 19:04
Re: Multiple different failures - HBase - [mail # user]
...Are you saying 97 % data was lost or was it offlined until the region servers came back up ?  Varun   On Sat, Jun 1, 2013 at 6:31 PM, Jean-Marc Spaggiari <[EMAIL PROTECTED] &nbs...
   Author: Varun Sharma, 2013-06-02, 01:51
Major vs Minor compactions - HBase - [mail # user]
...Hi,  I am working on some compaction coprocessors for a column family with versions set to 1. I am using the preCompact hook to wrap a scanner around the compaction scanner.  I wan...
   Author: Varun Sharma, 2013-05-29, 20:27
Re: RS crash upon replication - HBase - [mail # user]
...But wouldn't a copy table b/w timestamps bring you back since the mutations are all timestamp based we should okay ? Basically doing a copy table which supersedes the downtime interval ? &nb...
[+ more]    Author: Varun Sharma, 2013-05-23, 16:53
Re: [jira] [Resolved] (HBASE-8591) Doc Improvement: Replication blog - HBase - [mail # dev]
...Hi Himanshu,  I have a follow up question on these metrics. I see that both these metrics basically diff against the timestamp of the WALEdit. The timestamp on the WALEdit is generated ...
   Author: Varun Sharma, 2013-05-22, 20:28
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