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From James Taylor <jtay...@salesforce.com>
Subject independent scans to same region processed serially
Date Sat, 09 Feb 2013 01:49:46 GMT
Wanted to check with folks and see if they've seen an issue around this 
before digging in deeper. I'm on 0.94.2. If I execute in parallel 
multiple scans to different parts of the same region, they appear to be 
processed serially. It's actually faster from the client side to execute 
a single serial scan than it is to execute multiple parallel scans to 
different segments of the region. I do have region observer coprocessors 
for the table I'm scanning, but my code is not doing any synchronization.

Is there a known limitation in this area? Anyone else see anything similar?


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