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Re: problems with theUnsafe - HBase - [mail # dev]
...Interesting, it seems that you are the first user who is trying HBase (0.94.7) on IBM JRE. Which version of IBM JRE are you using? Unsafe MUST be supported by IBM JRE in Java 6.   On Sa...
   Author: Vladimir Rodionov, 2013-11-10, 05:44
Re: Setting up NxN replication - HBase - [mail # user]
...*I want to setup NxN replication i.e. N clusters each replicating to each other. N is expected to be around 10.*  Preparing to thermonuclear war?     On Fri, Nov 8, 2013 at 1:...
   Author: Vladimir Rodionov, 2013-11-08, 21:20
RE: Region Server not starting - HBase - [mail # user]
...Cleaning up Zookeeper  store should resolve this. Its quick but not 100% safe. The right way is to launch  Zk CLI and manually check and verify all HBase related nodes By default, ...
   Author: Vladimir Rodionov, 2013-11-08, 18:56
[HBASE-9751] Excessive  readpoints checks in StoreFileScanner - HBase - [issue]
...It seems that usage of skipKVsNewerThanReadpoint in StoreFileScanner can be greatly reduced or even eliminated all together (HFiles are immutable and no new KVs can be inserted after scanner...
http://issues.apache.org/jira/browse/HBASE-9751    Author: Vladimir Rodionov, 2013-11-08, 00:03
[expand - 4 more] - RE: HBase Client Performance Bottleneck in a Single Virtual Machine - HBase - [mail # user]
...This thread describes my similar findings:  http://mail-archives.apache.org/mod_mbox/hbase-dev/201307.mbox/%3CDC5EBE7F3610EB4CA5C7E92D76873E1517ECF1DCCE%40exchange2007.carrieriq.com%3E ...
   Author: Vladimir Rodionov, 2013-11-06, 19:56
RE: HBase Delete - based on non-rowkey columns - HBase - [mail # user]
...BulkDeleteEndpoint coprocessor to your help. Its the endpoint coprocessor. Refer HBase 0.94+ API and HBase book on how to use it for bulk delete operations.  Best regards, Vladimir Rodi...
   Author: Vladimir Rodionov, 2013-11-06, 18:46
[expand - 1 more] - RE: How to change split policy of a specific existing table(not global)?‏ - HBase - [mail # user]
...There is a ticket for that :)  https://issues.apache.org/jira/browse/HBASE-9218  Best regards, Vladimir Rodionov Principal Platform Engineer Carrier IQ, www.carrieriq.com e-mail: [...
   Author: Vladimir Rodionov, 2013-11-05, 17:43
RE: Scanner Caching with wildly varying row widths - HBase - [mail # user]
...setBatch and setCaching are totally independent from each other. The latter one controls numbers of rows transferred from server to client in one RPC call, the former one controls how many c...
   Author: Vladimir Rodionov, 2013-11-05, 00:38
RE: setCaching and setBatch - HBase - [mail # user]
...I think, setBatch is  your OOME protection as since it limits the total amount of KeyValues processed in a single call to StoreScanner.next.  Best regards, Vladimir Rodionov Princi...
   Author: Vladimir Rodionov, 2013-11-04, 22:08
RE: HBase wont responding when one region server goes down - HBase - [mail # user]
...Google "HBase MTTR improvements in 0.96". 10-15 minutes of downtime is normal on versions prior to 0.96 with default HBase configuration settings.  Best regards, Vladimir Rodionov Princ...
   Author: Vladimir Rodionov, 2013-10-29, 03:44
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