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dum
2013 Jul 02
1
read-subvolume
...eed is either super fast or 10Mb/sec. i.e. read operations
take place on the local copy or the remote seemingly at random.
This not the 'small files problem'. I am aware that Gluster must use
network access for stat() etc. This is all about where the data comes
from on a read(). If I do an m5dum on a 200Mb file it takes either half
a second or 18 seconds.
There is an option read-subvolume.
I have tried to understand how this works from the documentation
available and from the few examples on the web.
I have added the option using:
gluster volume set X read-subvolume Y
It has no effect...