similar to: performance of ofcs2 on rhel4 - SOLVED

On RHEL4 also, the service o2cb starts later than _netdev device mounts. So mount fails. Should the o2cb service start earlier to fix this? Zafar -----Original Message----- From: ocfs2-users-bounces@oss.oracle.com [mailto:ocfs2-users-bounces@oss.oracle.com] On Behalf Of ocfs2-users-request@oss.oracle.com Sent: Tuesday, June 28, 2005 12:00 PM To: ocfs2-users@oss.oracle.com Subject: Ocfs2-users

Hello, First of all, i am new at the list and i have several questions about ocfs2 performance. Where i am working i am having huge performance problens with ocfs2. Let me tell my envoriment. 3 Xen VirtualMachines withs ocfs2 mounting an LUN exported over iSCSI. ( acctualy 3 LUNS, 3 ocfs2 clusters ) I am not the one who configured the envoriment, but it is making the performance of my MAIL

Hello, We have a four-node RHEL4 RAC cluster running OCFS2 version 1.2.8-2 and the 2.6.9-67.0.4hugemem kernel. The cluster has been really stable since we upgraded to 1.2.8-2 early this year, but this morning, one of the nodes fenced and rebooted itself, and I wonder if anyone could glance at the below remote syslogs and offer an opinion as to why. First, here's the output of

All, We are pleased to announce the release of OCFS2 1.2.9-1 for RHEL4 and RHEL5 on x86, x86_64, ppc64 and ia64 architectures. This release includes bug fixes, most of which have been backported from the mainline kernel. Some of the more interesting ones have been described in detail. For the full list of changes, please refer to the news.

All, We are pleased to announce the release of OCFS2 1.2.9-1 for RHEL4 and RHEL5 on x86, x86_64, ppc64 and ia64 architectures. This release includes bug fixes, most of which have been backported from the mainline kernel. Some of the more interesting ones have been described in detail. For the full list of changes, please refer to the news.

Replace wait_event_interruptible() with wait_event() in o2net_send_message_vec(). This is because this function is called by the dlm that expects signals to be blocked. Fixes oss bugzilla#1126 http://oss.oracle.com/bugzilla/show_bug.cgi?id=1126 Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> --- fs/ocfs2/cluster/tcp.c | 7 ++----- 1 files changed, 2 insertions(+), 5

Stable folks, When a user creates a local (non-clustered) ocfs2 filesystem, accessing the /sys/kernel/debug/<uuid>/fs_state file will crash the system. This patch fixes the crash by correctly handling local filesystems. The problem was introduced with 2.6.30 and does not affect 2.6.29. It is mainline commit c3d38840abaa45c1c5a5fabbb8ffc9a0d1a764d1. Joel From: Sunil Mushran

Hi, I have 2 questions : 1. OCFS2 works on which schema. 2. If i run my rac on OCFS2 and i need to restore my datafile in other database which is runing on ASM , Is that possible? If yes how? Thanks & regards Suvankar --- On Thu, 3/11/10, ocfs2-users-request at oracle.com <ocfs2-users-request at oracle.com> wrote: > From: ocfs2-users-request at oracle.com <ocfs2-users-request

Mainline commit a5a0a630922a2f6a774b6dac19f70cb5abd86bb0 In ocfs2_dentry_attach_lock(), if unable to get the dentry lock, we need to call iput(inode) because a failure here means no d_instantiate(), which means the normally matching iput() will not be called during dput(dentry). This patch fixes the oops that accompanies the following message: (3996,1):dlm_empty_lockres:2708 ERROR: lockres

In ocfs2_dentry_attach_lock(), if unable to get the dentry lock(), we need to call iput(inode) because a failure here means no d_instantiate(), which means the normally matching iput() will not be called during dput(dentry). This patch fixes the oops that accompanies the following message: (3996,1):dlm_empty_lockres:2708 ERROR: lockres W00000000000000000a1046b06a4382 still has local locks! kernel

Sorry all, forgot to hit reply-all. ---------- Forwarded Message ---------- Subject: Re: [Ocfs2-users] Determining which version of ocfs2 tools a filesystem was created with. Date: Thursday 17 February 2011, 12:33:36 From: Mikey Austin <mikey at mikeyaustin.com> To: Sunil Mushran <sunil.mushran at oracle.com> On Wednesday 09 February 2011 11:40:01 you wrote: > On 02/07/2011

Like tools, the checksum validate function now prints the values in hex. Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> --- fs/ocfs2/blockcheck.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/blockcheck.c b/fs/ocfs2/blockcheck.c index ec6d123..c7ee03c 100644 --- a/fs/ocfs2/blockcheck.c +++ b/fs/ocfs2/blockcheck.c @@ -439,7 +439,7 @@ int

o2dlm join and leave messages are more than informational as they are required is debugging locking issues. This patch changes them from KERN_INFO to KERN_NOTICE. Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> --- fs/ocfs2/dlm/dlmdomain.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index

Hi all, I'm trying to understand and quantify network traffic for a 32 node high performance OCFS2 installation. Part of what I'm doing is attempting to size the network hardware requirements. To do this I need some help understanding the kinds and amounts of traffic generated during "normal" use. Once populated, the system will have a very high READ to WRITE op ratio. I

I think I might have miss understood where it is failing, has this file been added to the DB on the web site or does it fail when you try to onfigure this? Carle Simmonds Infrastructure Consultant Technology Services Experian UK Ltd __________________________________________________ Tel: +44 (0)115 941 0888 (main switchboard) Mobile: +44 (0)7813 854834 E-Mail: carle.simmonds at uk.experian.com

Hi. I'm running RHEL4 for my test system, Adaptec Firewire controllers, Maxtor One Touch III shared disk (see the details below), 100Mb/s dedicated interconnect. It panics with no load about each 20 minutes (error message from netconsole attached) Any clues? Yegor --- [root at rac1 ~]# cat /proc/fs/ocfs2/version OCFS2 1.2.0 Tue Mar 7 15:51:20 PST 2006 (build

By default, o2cb fences the box by calling emergency_restart(). While this scheme works well in production, it comes in the way during testing as it does not let the tester take stack/core dumps for analysis. This patch allows user to dynamically change the fence method to panic() by: # echo "panic" > /sys/kernel/config/cluster/<clustername>/fence_method Signed-off-by: Sunil

Currently f_fsid of struct kstatfs returned from ocfs2_statfs() is undefined (vfs layer fills 0 as default). Since in some conditions, f_fsid value might be used as (f_fsid, ino) pair to uniquely identify a file, ocfs2 should return a unique defined f_fsid value from ocfs2_statfs(). This patch uses uuid_hash as a unique ID to initiate f_fsid value. The 32bits width is enough for ocfs2 membership

One more follow on, The combination of kernel.panic=60 and kernel.printk=7 4 1 7 seems to have netted the culrptit: E01-netconsole.log:Jan 18 09:45:10 E01 (10,0):o2hb_write_timeout:137 ERROR: Heartbeat write timeout to device dm-12 after 60000 milliseconds E01-netconsole.log:Jan 18 09:45:10 E01 (10,0):o2hb_stop_all_regions:1517 ERROR: stopping heartbeat on all active regions.

Linus, et al, Here are the ocfs2 changes for 2.6.37. There are three major additions. Tao Ma has added readahead to our CoW operations. Sunil Mushran has added a global heartbeat mode, allowing one device heartbeat to support multiple ocfs2 mounts. Finally, Patrick J. LoPresti has done the final work to enable ocfs2 mounts on devices larger than 16TB. The ocfs2 disk format has always