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From joshelser <...@git.apache.org>
Subject [GitHub] accumulo issue #176: Wrote blog post about durability and performance
Date Mon, 31 Oct 2016 13:12:31 GMT
Github user joshelser commented on the issue:

    https://github.com/apache/accumulo/pull/176
  
    > so that if the node goes down and can't be brought back up, you can still recover
using the WAL.
    
    I'm not sure I understand the reasoning behind that logic (admittedly, it's "early").
Specifically, how would a failure of the local node be any different than a failure of a non-local
DN in the write pipeline? Also, aren't there performance implications when using hflush to
avoid the local node (not even just the write side, but the read side would be unable to use
SCR's when the local DN doesn't have those blocks).


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