[Gluster-users] cluster/distribute vs DHT

[Sacerdoti, Federico]

Hi,
 
I am benchmarking gluster, and would like to ensure I understand the
options related to consolidating the storage bricks. I'm a bit confused
about "cluster/unify", "cluster/dht", and "cluster/distribute". 
 
This page shows how dht is different from unify, but what is distribute,
a rename of DHT? 
 
http://www.gluster.org/docs/index.php/Understanding_DHT_Translator
 
It would be helpful to see an example of distribute+replicate. I am
trying to approximate an HDFS setup that I've tested, which replicates
files over many servers, but favors local storage like nufa. In Gluster
I am using:
 
Translators:
 fuse -> distribute -> replicate -> {bricks} 
Bricks are:
 server -> io-threads(8) -> locks -> posix_storage
 
I would like to measure worst-case performance, without any cache
effects. Are there any translators or options that I should include for
best performance?
 
Thanks,
fds
 
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