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From kevin <kiss.kevin...@gmail.com>
Subject About Archival Storage
Date Tue, 19 Jul 2016 09:55:28 GMT
I don't quite understand :"Note that the Lazy_Persist policy is useful only
for single replica blocks. For blocks with more than one replicas, all the
replicas will be written to DISK since writing only one of the replicas to
RAM_DISK does not improve the overall performance."

Is that mean I should config dfs.replication with 1 ?  if more than one I
should not use *Lazy_Persist*  policies ?

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