[Ocfs2-users] Slow OCFS2 on very high-end hardware

Marek Królikowski admin at wset.edu.pl
Sat Dec 3 11:32:30 PST 2011


Hello
Today i create a cluster with OCFS2.
I name servers MAIL1 and MAIL2
Both connect via HBA card with 2 links 4Gbit/s and EMC storage with FC RAID10.
Both connect to this same Cisco switch 1Gbit/s line.
Hardware is awsome but ocfs2 work verrrry slow.
I use Gentoo Linux with Kernel 3.0.6 and ocfs2-tools-1.6.4 that will be postfix/imap/pop3 cluster with maildir support so there will be many many directores and little files.
I link /home to my ocfs2 and do few tests but work verry slow...
When i write any file on server MAIL1 and try check mailbox from MAIL2 working amazing slow...
This is my first ocfs2 cluster so i am 100% sure i do something  wrong.....

This is what look my configs:
MAIL1 ~ # cat /etc/ocfs2/cluster.conf
node:
        ip_port = 7777
        ip_address = 172.17.1.251
        number = 0
        name = MAIL1
        cluster = MAIL
node:
        ip_port = 7777
        ip_address = 172.17.1.252
        number = 1
        name = MAIL2
        cluster = MAIL
cluster:
        node_count = 2
        name = MAIL

MAIL2 ~ # cat /etc/ocfs2/cluster.conf
node:
        ip_port = 7777
        ip_address = 172.17.1.251
        number = 0
        name = MAIL1
        cluster = MAIL
node:
        ip_port = 7777
        ip_address = 172.17.1.252
        number = 1
        name = MAIL2
        cluster = MAIL
cluster:
        node_count = 2
        name = MAIL

MAIL1 ~ # cat /proc/mounts
/dev/mapper/EMC /mnt/EMC ocfs2 rw,relatime,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,usrquota,coherency=full,user_xattr,acl 0 0
MAIL2 ~ # cat /proc/mounts
/dev/mapper/EMC /mnt/EMC ocfs2 rw,relatime,_netdev,heartbeat=local,nointr,data=ordered,errors=remount-ro,usrquota,coherency=full,user_xattr,acl 0 0

For now there is a test files so i can create a new one ocfs2 if need it.

Thanks for Help
Marek
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