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From Vladimir Rodionov <vrodio...@carrieriq.com>
Subject RE: Coprocessor Increments
Date Thu, 10 Oct 2013 02:28:09 GMT
>>Contrived Example

>>Insert rowkey "California-12345" triggers a coprocessor to call
>>incrementColumnValue() with a rowkey of "California-total"  all on Region 1.

>>This would likely be on an insert on the same region. But as the table
>>grows, this secondary insert could end up on another region. If it is
>>confined, then suppose we later insert "California-95424" which still
>>triggers a call to incrementColumnValue() with a rowkey of
>>"California-total" all on Region 2.

>>Are we now left with two rowkeys of "California-total"? One on each
>>region server? If so, what happens if these two regions are compacted
>>into one?

>>Best regards,

Nope, Your "California-total" will migrate to Region 2 after region split is complete.

Vladimir Rodionov
Principal Platform Engineer
Carrier IQ, www.carrieriq.com
e-mail: vrodionov@carrieriq.com


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