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[HBASE-6216] per-request tagging - HBase - [issue]
...Allow applications to tag individual RPC requests so that metrics exposed by HBase can automatically be collected/aggregated by those tags. This'll be useful for problem diagnosis across var...
http://issues.apache.org/jira/browse/HBASE-6216    Author: Kannan Muthukkaruppan, 2012-08-29, 06:03
[HBASE-6215] per-request profiling - HBase - [issue]
...Add ability to get HBase metrics back from an individual request. Apps can use this to track fine-grained metrics (such as server-side latency, block cache access/hit count; sync latency; ap...
http://issues.apache.org/jira/browse/HBASE-6215    Author: Kannan Muthukkaruppan, 2012-06-15, 22:28
[HBASE-5962] interop issue: RowMutations should be added at the end in HbaseObjectWriteable class - HBase - [issue]
...In HbaseObjectWriteable.java new classes should be added to the end; else, old clients will not be able to talk to new HBase servers. This is causing issues in test cluster with the followin...
http://issues.apache.org/jira/browse/HBASE-5962    Author: Kannan Muthukkaruppan, 2012-05-16, 20:04
[HBASE-4823] long running scans lose benefit of bloomfilters and timerange hints - HBase - [issue]
...When you have a long running scan due to say an MR job, you can lose the benefit of timerange hints & bloom filters midway if your scanner gets reset. [Note: The scanners can get res...
http://issues.apache.org/jira/browse/HBASE-4823    Author: Kannan Muthukkaruppan, 2012-05-16, 19:55
[HBASE-5907] enhance HLog pretty printer to print additional useful stats - HBase - [issue]
...It would be useful for analysis purposes to enhance the HLog pretty printer to optionally print a bunch of additional stats such as:1) # of txns2) # of KVs updated3) avg size of txns4) avg s...
http://issues.apache.org/jira/browse/HBASE-5907    Author: Kannan Muthukkaruppan, 2012-05-05, 05:01
[HBASE-4542] add filter info to slow query logging - HBase - [issue]
...Slow query log doesn't report filters in effect.For example:(operationTooSlow): \{"processingtimems":3468,"client":"","timeRange": [0,9223372036854775807],\"starttimems":1...
http://issues.apache.org/jira/browse/HBASE-4542    Author: Kannan Muthukkaruppan, 2012-03-21, 20:51
Re: Please welcome the dynamic K-squared duo, Kannan and Karthick, our latest hbase committers! - HBase - [mail # dev]
...Thanks Stack and HBase team! Look fwd to doing exciting work as part of this team.  Regards, Kannan Muthukkaruppan  On 10/31/11 10:19 AM, "Stack"  wrote:  ...
   Author: Kannan Muthukkaruppan, 2011-10-31, 19:00
RE: TimestampFilter JavaDoc - HBase - [mail # dev]
...Lars,    You are right. The comment is stale and should go. I think it was from a ha lf-baked version of my implementation-- but one which is no longer true whe n the implementatio...
   Author: Kannan Muthukkaruppan, 2011-03-29, 05:35
RE: Please welcome two new hbase committers, Gary Helmling and Nicolas Spiegelberg - HBase - [mail # dev]
...Congratulations Nicolas & Gary! This is awesome.  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Stack Sent: Thursday, December 02, 2010 11:01 AM To: HBase Dev List Sub...
   Author: Kannan Muthukkaruppan, 2010-12-02, 21:36
intermittent diff (?)- testIncrementColumnValue_BumpSnapshot - HBase - [mail # dev]
...Hi,  Noticed this in our test run once. Didn't repro on a rerun though. But want ed to share with the list in case anyone was familiar with the test.  Test set: org.apache.hadoop.h...
   Author: Kannan Muthukkaruppan, 2010-08-27, 12:32
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