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From Ted Yu <yuzhih...@gmail.com>
Subject potential enhancement to rolling restart
Date Thu, 08 Mar 2012 21:36:19 GMT
Hi,
Currently Master has no knowledge about the order in which the region
servers would be restarted.
Consider this scenario: region R was hosted on RS n.
When RS n gets restarted, master assigns R to RS n+1. However, RS n+1 may
not have enough time to complete the transition before it is its turn to
restart.

Should we enhance rolling restart by informing the master of the order in
which the region servers would be restarted ?

Cheers

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