From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Mailand Subject: Re: OSD blocked for more than 120 seconds Date: Mon, 17 Oct 2011 15:21:46 +0200 Message-ID: <4E9C2BEA.70002@tuxadero.com> References: <4E974C87.2070204@tuxadero.com> <1318585099.2999.10.camel@wido-laptop> <4E99E68F.9090005@tuxadero.com> <4E9C1645.3070205@tuxadero.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from einhorn.in-berlin.de ([192.109.42.8]:48620 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750750Ab1JQNVx (ORCPT ); Mon, 17 Oct 2011 09:21:53 -0400 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Tomasz Paszkowski Cc: chb@muc.de, Wido den Hollander , ceph-devel@vger.kernel.org Am 17.10.2011 14:05, schrieb Tomasz Paszkowski: > Hi, > > It seems that ext4 and btrfs are not to be considered as stable for > now. Does anyone could confirm that > ext3 is the best choice for this moment ? Hi, I did a quick test with ext3, and it did not look very good. After a few minutes one of the osds failed with this message. [315274.737204] kjournald starting. Commit interval 5 seconds [315274.737919] EXT3-fs (sdb): using internal journal [315274.737929] EXT3-fs (sdb): mounted filesystem with ordered data mode [317040.890148] INFO: task ceph-osd:18032 blocked for more than 120 seconds. [317040.905855] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [317040.923801] ceph-osd D ffff880114c8b1a0 0 18032 1 0x00000000 [317040.923812] ffff88010f2e3cb8 0000000000000086 ffff88010f2e3cb8 ffff88010f2e3cb8 [317040.923821] ffff88011ffdff08 ffff88010f2e3fd8 ffff88010f2e2000 ffff88010f2e3fd8 [317040.923830] ffff880116dadbc0 ffff880114c8ade0 ffff88010f2e3cd8 ffffffff8110d500 [317040.923847] Call Trace: [317040.923865] [] ? find_get_pages_tag+0x40/0x130 [317040.923876] [] schedule+0x3f/0x60 [317040.923884] [] schedule_timeout+0x26d/0x2e0 [317040.923893] [] ? native_sched_clock+0x15/0x70 [317040.923899] [] ? sched_clock+0x9/0x10 [317040.923908] [] ? sched_clock_local+0x25/0x90 [317040.923916] [] wait_for_common+0xd9/0x180 [317040.923924] [] ? try_to_wake_up+0x2b0/0x2b0 [317040.923932] [] wait_for_completion+0x1d/0x20 [317040.923941] [] sync_inodes_sb+0x92/0x1c0 [317040.923949] [] ? __sync_filesystem+0x90/0x90 [317040.923956] [] __sync_filesystem+0x80/0x90 [317040.923963] [] sync_one_sb+0x1f/0x30 [317040.923972] [] iterate_supers+0xa8/0x100 [317040.923979] [] sync_filesystems+0x20/0x30 [317040.923985] [] sys_sync+0x21/0x40 [317040.923995] [] system_call_fastpath+0x16/0x1b Best Regards, martin