ocfs2 supports private mmap r/w and shared mmap readonly.
Shared mmap writeable is the only piece missing. We should have that by 1.4.
Alexei_Roudnev wrote:
There was a clear answer, WHY it did not worked on OCFSv2:
- BerkleyDB and LDAP uses mmap to the files;
- OCFSv2 don't implement it (because it is not possible to do such mapping
in the cluster FS)
- So they dont work on OCFSv2
Am I correct?
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: "Michael Wood" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Wednesday, December 06, 2006 2:33 AM
Subject: Re: [Ocfs2-users] OCFS2 and berkeley database files
Am Mi, 6.12.2006, 09:35, schrieb Michael Wood:
Berkeley DB does have problems with certain filesystems (e.g.
NFS) so maybe this is a similar issue. (Just a wild guess.)
Yes I found the Orcale FAQ. So it is s structural problem with a "simple"
DB and then trying to open it more than once
OpenLDAP supports various different backends. Maybe one of the
others will work better?
Perhaps, but my guess is, that the funktionality of an cluster filesystem
always uses an access to every file, even if it is not connected to a
service. So I think it will not work if theses files are not able to
handle more than one access at one time.
Cyrus also supports various different database types for its
databases. Maybe try one of the others. I have never used either
OpenLDAP
or Cyrus on ocfs2, so I can't guarantee anything :)
Same as above
Server is a DELL Poweredge with EMC CLARiiON SAN
System SuSE SLES9 SP3+
-> 2.6.5-7.244-smp Kernel with (...> modinfo ocfs2):
license: GPL
author: Oracle
version: 1.1.7-SLES 5AF01E6455FC04917FE52FB
description: OCFS2 1.1.7-SLES Tue Nov 1 14:45:27 PST 2005 (build
sles) depends: ocfs2_nodemanager,ocfs2_dlm,jbd
supported: yes
vermagic: 2.6.5-7.244-smp SMP gcc-3.3
[snip]
2.6.5-7.244 was released with SLES9 SP3. You might want to
patch your box to 2.6.5-7.282 (which I think is the latest.)
The 7.282 version of the SLES9 SP3 kernel comes with ocfs2
version 1.2.1-SLES.
Yes, but this EMC multipath software installs some kernelmodules
(binaries, no sources) and they only match with the kernels in the list.
So I have to wait for the next release :(((
On the ocfs2 homepage it says:
SuSE Linux Exterprise Server 9: OCFS2 1.2.1 is bundled
with the SLES9 SP3 (2.6.5-7.257 and later) release. SLES9 users must
upgrade to the latest SP3 kernel (2.6.5-7.257 or later) and install
ocfs2-tools and ocfs2console packages. For more on OCFS2 bundling with
SLES9, refer to the Novell SLES9 section in the FAQ
See above
--
Michael Wood <[EMAIL PROTECTED]>
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