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From Venkatesh <vramanatha...@aol.com>
Subject hbase 0.90.2 - incredibly slow response
Date Tue, 19 Apr 2011 17:35:08 GMT

 
Just upgraded to 0.90.2 from 0.20.6..Doing a simple put to  table (< 100 bytes per put)..
Only code change was to retrofit the HTable API to work with 0.90.2 

Initializing HBaseConfiguration in servlet.init()...& reusing that config for HTable constructor
& doing put

Performance is very slow 90% of requests are well over 2 sec..(With 0.20.6, 90% use to be
< 10 milli sec)

I did run set_meta_memstore_size.rb as per the book..

Any help to debug is appreciated..I also see periodic pauses between hbase puts

thanks
v


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