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Question about HFile internals - HBase - [mail # dev]
...Hi,I am using HFiles on HDFS for an application and I am seeing an issue whichI dont see with HBase. Each time a seek is performed on the HFile usingHFileReaderV2, it is read 128K from disk ...
   Author: Varun Sharma, 2014-10-15, 01:33
[expand - 1 more] - Re: Questions about custom helix rebalancer/controller/agent - HBase - [mail # user]
...Sorry - wrong user mailing list - please ignore...On Thu, Jul 31, 2014 at 12:12 PM, Varun Sharma  wrote: ...
   Author: Varun Sharma, 2014-07-31, 19:13
[HBASE-8370] Report data block cache hit rates apart from aggregate cache hit rates - HBase - [issue]
...Attaching from mail to [EMAIL PROTECTED]I am wondering whether the HBase cachingHitRatio metrics that the region server UI shows, can get me a break down by data blocks. I always see this nu...
http://issues.apache.org/jira/browse/HBASE-8370    Author: Varun Sharma, 2014-07-22, 05:36
Question about HFile indices - HBase - [mail # dev]
...Hi folks,I am wondering why we have a tiered index in the HFile format. Is itbecause the root index must fit in memory - hence must be limited in size.Does the bound on the root index pretty...
   Author: Varun Sharma, 2014-07-14, 18:15
[expand - 1 more] - Re: Question about Prefix Encodings - HBase - [mail # user]
...Seems like its called DATA_BLOCK_ENCODING, so it should only apply to datablocks ?On Fri, May 30, 2014 at 11:36 AM, Varun Sharma  wrote: ...
   Author: Varun Sharma, 2014-05-30, 18:48
[HBASE-11007] BLOCKCACHE in schema descriptor seems not aptly named - HBase - [issue]
...Hi,It seems that setting BLOCKCACHE key to false will disable the Data blocks from being cached but will continue to cache bloom and index blocks. This same property seems to be called cache...
http://issues.apache.org/jira/browse/HBASE-11007    Author: Varun Sharma, 2014-05-21, 06:51
Re: no-flush based snapshot policy? - HBase - [mail # user]
...Seems like those JIRAs are 1.0 - did not see a 0.94 version # there ?On Wed, Apr 2, 2014 at 1:40 PM, Ted Yu  wrote: ...
   Author: Varun Sharma, 2014-04-03, 01:13
[HBASE-8389] HBASE-8354 forces Namenode into loop with lease recovery requests - HBase - [issue]
...We ran hbase 0.94.3 patched with 8354 and observed too many outstanding lease recoveries because of the short retry interval of 1 second between lease recoveries.The namenode gets into the f...
http://issues.apache.org/jira/browse/HBASE-8389    Author: Varun Sharma, 2014-03-09, 06:25
[expand - 1 more] - Re: Cell values larger than Column Family Block Size - HBase - [mail # user]
...Hi Ted,I am not concerned about wide rows here. My schema has only 1 column in itbut it has a "value" of 50-100K bytes. The block size is configured to be32K bytes. How does that work in pra...
   Author: Varun Sharma, 2014-02-24, 18:38
[HBASE-7295] Contention in HBaseClient.getConnection - HBase - [issue]
...HBaseClient.getConnection() synchronizes on the connections object. We found severe contention on a thrift gateway which was fanning out roughly 3000+ calls per second to hbase region server...
http://issues.apache.org/jira/browse/HBASE-7295    Author: Varun Sharma, 2014-02-22, 01:22
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB