Hello,
first of all I would like to thank the gluster developers for the great
job they are doing.
I hope someone can give me more details about how replicate copies of
the same file in a distributed/replicated gluster volumes are accessed
by clients.
My specific question is: if I have a distributed/replicated volume and a
gluster native client needs to read a file, which server will be chosen ?
Let's say I have a 2-nodes cluster running the following gluster
configuration:
---
Volume Name: myvolume
Type: Replicate
Status: Started
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: host1:/brick
Brick2: host2:/brick
---
host1 and host2 are also gluster native clients, mounting "myvolume" in
/gluster
e.g.
[root@host1 ~]# mount | egrep "brick|gluster"
/dev/sda1 on /brick type ext3 (rw)
glusterfs#host1:/myvolume on /gluster type fuse
(rw,allow_other,default_permissions,max_read=131072)
[root@host2 ~]# mount | egrep "brick|gluster"
/dev/sda1 on /brick type ext3 (rw)
glusterfs#host2:/myvolume on /gluster type fuse
(rw,allow_other,default_permissions,max_read=131072)
If host1 needs to read the file /gluster/myfile will it use the local
copy from host1:/brick or the other copy from host2:/brick over the
network ?
Is there a way to force the client to read the local copy ?
Cheers, Rosario
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