What is for you slow speed? 100Mbps do you test your speed. First check that you NAS run well, who?, make a xfs filesystem in one nodo and create files if you speed is normal as normal said more than 150Mb/s ask about ocfs2.. check multipath too..
regards! 2011/12/5 Marek Królikowski <ad...@wset.edu.pl>: >>> >> 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... >>> >I've gotta ask, what is "amazingly slow" to you? A cluster >>> >filesystem accessing the same files from two places necessarily is >>> >slower than local access. But if it is slow enough that you notice it >>> >by hand, it's probably something in configuration. >>> >Did you select the 'mail' filesystem type when creating the >>> >filesystem? This probably shouldn't affect your simple test, but it >>> >will absolutely help as your system grows. >>> When i copy any file from/to MAIL1 and enter to home directory (using MC) >>> where is 7000 users on MAIL2 i need wait 30+ sec.... at normal when i >>> don`t >>> copy write on ocfs2 i wait 3 sec. >> >>Yeah, that seems really long. Are you using indexed >>directories? I don't think your multipath setup is the problem. > > Hello > Yes i use indexed - i create again a new ocfs2 partition with: > mkfs.ocfs2 -N 2 -L > MAIL --fs-features=backup-super,usrquota,indexed-dirs > --fs-feature-level=max-features > -v /dev/dm-0 > and got exacly this same problem.... > > But i saw when i enter after 30 sec to this directory in dmesg info: > rm D ffff88107f3b25c0 0 8447 13527 0x00000000 > ffff88101542c040 0000000000000082 ffff881020053080 00000000000125c0 > ffff880401a8ffd8 00000000000125c0 00000000000125c0 00000000000125c0 > ffff880401a8e000 00000000000125c0 ffff880401a8ffd8 00000000000125c0 > Call Trace: > [<ffffffff8148148d>] ? schedule_timeout+0x1ed/0x2e0 > [<ffffffff81480932>] ? __schedule+0x3a2/0x6b0 > [<ffffffffa0a358bf>] ? dlmlock+0x7f/0xb70 [ocfs2_dlm] > [<ffffffff81480e0a>] ? wait_for_common+0x13a/0x190 > [<ffffffff8104bc50>] ? try_to_wake_up+0x280/0x280 > [<ffffffffa0902a38>] ? __ocfs2_cluster_lock.clone.21+0x1d8/0x6b0 [ocfs2] > [<ffffffff81480e2f>] ? wait_for_common+0x15f/0x190 > [<ffffffffa0902fcc>] ? ocfs2_inode_lock_full_nested+0xbc/0x490 [ocfs2] > [<ffffffffa091dc1b>] ? ocfs2_lookup_lock_orphan_dir+0x6b/0x1b0 [ocfs2] > [<ffffffffa091f4ba>] ? ocfs2_prepare_orphan_dir+0x4a/0x280 [ocfs2] > [<ffffffffa092016f>] ? ocfs2_unlink+0x6ef/0xb90 [ocfs2] > [<ffffffff811b35a9>] ? may_link.clone.22+0xd9/0x170 > [<ffffffff8113aa58>] ? vfs_unlink+0x98/0x100 > [<ffffffff8113ac41>] ? do_unlinkat+0x181/0x1b0 > [<ffffffff8113e7cd>] ? vfs_readdir+0x9d/0xe0 > [<ffffffff811653d8>] ? fsnotify_find_inode_mark+0x28/0x40 > [<ffffffff8148aa12>] ? system_call_fastpath+0x16/0x1b > > Thanks > > > _______________________________________________ > Ocfs2-users mailing list > Ocfs2-users@oss.oracle.com > http://oss.oracle.com/mailman/listinfo/ocfs2-users _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
