Serkan Çoban
2016-Jan-31 10:49 UTC
[Gluster-users] nfs-ganesha/pnfs read/write path on EC volume
Hi,
I am testing nfs-ganesha with pNFS on EC volume and I want to ask some
questions.
Assume we have two clients: c1,c2
and six servers with one 4+2 EC volume constructed as below:
gluster volume create vol1 disperse 6 redundancy 2 server{1..6}:/brick/b1 \
server{1..6}:/brick/b2 \
server{1..6}:/brick/b3 \
server{1..6}:/brick/b4 \
server{1..6}:/brick/b5 \
server{1..6}:/brick/b6
vol1 is mounted on both clients as server1:/vol1
Here is first question: When I write file1 from client1 and file2 from
client2; which servers get the files? In my opinion server1 gets file1
and server2 gets file2 and do EC calculations and distribute chunks to
other servers. Am I right?
Can anyone explain detailed read/write path with pNFS and EC volumes?
Thanks,
Serkan
Jiffin Tony Thottan
2016-Jan-31 15:00 UTC
[Gluster-users] nfs-ganesha/pnfs read/write path on EC volume
On 31/01/16 16:19, Serkan ?oban wrote:> Hi, > I am testing nfs-ganesha with pNFS on EC volume and I want to ask some > questions. > Assume we have two clients: c1,c2 > and six servers with one 4+2 EC volume constructed as below: > > gluster volume create vol1 disperse 6 redundancy 2 server{1..6}:/brick/b1 \ > > server{1..6}:/brick/b2 \ > > server{1..6}:/brick/b3 \ > > server{1..6}:/brick/b4 \ > > server{1..6}:/brick/b5 \ > > server{1..6}:/brick/b6 > vol1 is mounted on both clients as server1:/vol1 > > Here is first question: When I write file1 from client1 and file2 from > client2; which servers get the files? In my opinion server1 gets file1 > and server2 gets file2 and do EC calculations and distribute chunks to > other servers. Am I right? > > Can anyone explain detailed read/write path with pNFS and EC volumes?I never tried pNFS with EC volume, will try the same by my own and reply to your question as soon as possible. -- Jiffin> Thanks, > Serkan > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://www.gluster.org/mailman/listinfo/gluster-users
Serkan Çoban
2016-Feb-10 07:45 UTC
[Gluster-users] nfs-ganesha/pnfs read/write path on EC volume
Hi Jiffin, Any update about the write path? Serkan On Sun, Jan 31, 2016 at 5:00 PM, Jiffin Tony Thottan <jthottan at redhat.com> wrote:> > > On 31/01/16 16:19, Serkan ?oban wrote: >> >> Hi, >> I am testing nfs-ganesha with pNFS on EC volume and I want to ask some >> questions. >> Assume we have two clients: c1,c2 >> and six servers with one 4+2 EC volume constructed as below: >> >> gluster volume create vol1 disperse 6 redundancy 2 server{1..6}:/brick/b1 >> \ >> >> server{1..6}:/brick/b2 \ >> >> server{1..6}:/brick/b3 \ >> >> server{1..6}:/brick/b4 \ >> >> server{1..6}:/brick/b5 \ >> >> server{1..6}:/brick/b6 >> vol1 is mounted on both clients as server1:/vol1 >> >> Here is first question: When I write file1 from client1 and file2 from >> client2; which servers get the files? In my opinion server1 gets file1 >> and server2 gets file2 and do EC calculations and distribute chunks to >> other servers. Am I right? >> >> Can anyone explain detailed read/write path with pNFS and EC volumes? > > > I never tried pNFS with EC volume, will try the same by my own and reply to > your question as soon as possible. > -- > Jiffin > >> Thanks, >> Serkan >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users at gluster.org >> http://www.gluster.org/mailman/listinfo/gluster-users > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://www.gluster.org/mailman/listinfo/gluster-users