[Gluster-users] performance issue

[anthony garnier]

I just tried to add your option but it change nothing :(


From: andoni at tierradeayala.com
Date: Mon, 21 Dec 2009 15:43:52 +0100
Subject: Re: [Gluster-users] performance issue
To: sokar6012 at hotmail.com
CC: gluster-users at gluster.org

You can try this:

# /etc/glusterfs/glusterfsd.vol

volume server

  type protocol/server

  option transport-type tcp/server
 option transport.socket.nodelay on
 option auth.addr.brick.allow *

  subvolumes brick

end-volume

and on each brick:

#/etc/glusterfs/glusterfs.vol



volume brick1

 type protocol/client

 option transport-type tcp
 option transport.socket.nodelay on
 option remote-host       # IP address of the remote brick

 option remote-subvolume brick        # name of the remote volume

end-volume

Good luck
Andoni Ayala

2009/12/21 anthony garnier <sokar6012 at hotmail.com>




Hi,

I just installed the last version of glusterfs 3.0 and I got really bad performance.

Here it is :

 # dd if=/dev/zero of=/users/glusterfs_mnt/sample bs=1k count=100000



This create a file of 100Mo and I got those results :

NFS = 75 Mo/s

Gluster=5,8Mo/s



I tried to change block size, change value of write behind parameters, to add Read Ahead translator, to remove all performance translator( and it's worst :\ ), try with afr translator ... but no change!



My configuration is : replicated and distributed (RAID 10 over network) on server side over 4 bricks, Giga Ethernet on all servers and clients



What kind of performance do you have? Is it normal?

I also tried to run a iostat test and it run during 24H of CPU time (3 days at all)....

Here my vol file of server and client computer :



# /etc/glusterfs/glusterfsd.vol



volume posix

  type storage/posix

  option directory /users/gluster-data

end-volume



volume locks

  type features/locks

  subvolumes posix

end-volume



volume brick

  type performance/io-threads

  option thread-count 8

  subvolumes locks

end-volume



volume server

  type protocol/server

  option transport-type tcp/server

  option auth.addr.brick.allow *

  subvolumes brick

end-volume

------------------------------------------------

#/etc/glusterfs/glusterfs.vol



volume brick1

 type protocol/client

 option transport-type tcp

 option remote-host       # IP address of the remote brick

 option remote-subvolume brick        # name of the remote volume

end-volume



volume brick2

 type protocol/client

 option transport-type tcp

 option remote-host       # IP address of the remote brick

 option remote-subvolume brick        # name of the remote volume

end-volume



volume brick3

 type protocol/client

 option transport-type tcp

 option remote-host

 option remote-subvolume brick

end-volume



volume brick4

 type protocol/client

 option transport-type tcp

 option remote-host

 option remote-subvolume brick

end-volume



volume rep1

 type cluster/replicate

 subvolumes brick1 brick2

end-volume



volume rep2

 type cluster/replicate

 subvolumes brick3 brick4

end-volume



volume distribute

 type cluster/distribute

 subvolumes rep1 rep2

end-volume



volume writebehind

  type performance/write-behind

  option window-size 1MB

  subvolumes distribute

end-volume



volume cache

  type performance/io-cache

  option cache-size 512MB

  subvolumes writebehind

end-volume









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