[Ocfs2-users] bug resolve yet for export OCFS2 volume to NFS client ?
Sérgio Surkamp
sergio at gruposinternet.com.br
Tue Mar 22 11:20:54 PDT 2011
NFS READDIRPLUS bug:
http://oss.oracle.com/bugzilla/show_bug.cgi?id=977
Fragmentation bug:
http://oss.oracle.com/bugzilla/show_bug.cgi?id=1189
Regards,
Sérgio
Em Tue, 22 Mar 2011 23:34:14 +0800 (GMT+08:00)
Thomas Lau <thomaslau at esun.com> escreveu:
>
> what is exactly the bug is ?!
>
>
> ----- Original Message -----
> From: "Sérgio Surkamp" <sergio at gruposinternet.com.br>
> To: ocfs2-users at oss.oracle.com
> Sent: Tuesday, March 22, 2011 11:12:59 PM
> Subject: Re: [Ocfs2-users] bug resolve yet for export OCFS2 volume to
> NFS client ?
>
> Hi,
>
> Our NFS setup is running stable since we have disabled READDIRPLUS on
> our FreeBSD clients. The OCFS2 cluster servers are with about 200 days
> of uptime now and last reboot was to upgrade the kernel version.
>
> As a general recommendation, I suggest you to use the Oracle's
> Unbreakable Linux kernel on top of CentOS 5.4 (or RedHat EL 5.4) and
> OCFS2 1.6, also provided by Oracle, to avoid the known fragmentation
> bug and to be able to enable the indexed directories feature for
> improved performance.
>
> If you are using only Linux NFS clients, you can try running with
> READDIRPLUS enabled, but maybe you experience the same bug as FreeBSD
> NFS client and disabling the READDIRPLUS call is the only known way to
> avoid the problem.
>
> To install the Unbreakable, fallow the instructions provided by Oracle
> on its yum repository:
>
> http://public-yum.oracle.com/
>
> Regards,
> Sérgio
>
> Em Tue, 22 Mar 2011 14:52:11 +0800
> Thomas Lau <thomaslau at esun.com> escreveu:
>
> > I found this from ocfs1.4 document:
> > g) NFS
> > OCFS2 volumes can be exported as NFS volumes. This support is
> > limited to NFS version 3, which translates to Linux kernel version
> > 2.4 or later. Users must mount the NFS volumes on the clients using
> > the nordirplus mount option. This disables the READDIRPLUS RPC call
> > to workaround a bug in NFSD, detailed in the following link:
> > http://oss.oracle.com/pipermail/ocfs2-announce/2008-June/000025.html
> > Users running NFS version 2 can export the volume after having
> > disabled subtree checking (mount option no_subtree_check). Be
> > warned, disabling the check has security implications (documented
> > in the exports(5) man page) that users must evaluate on their own.
> >
> > is it being fixed with centos 5.3 (2.6.18-164.11.1.el5)?
> >
> > anything I need to aware for exporting OCFS2 volume via NFS?
> >
>
>
>
--
.:''''':.
.:' ` Sérgio Surkamp | Gerente de Rede
:: ........ sergio at gruposinternet.com.br
`:. .:'
`:, ,.:' *Grupos Internet S.A.*
`: :' R. Lauro Linhares, 2123 Torre B - Sala 201
: : Trindade - Florianópolis - SC
:.'
:: +55 48 3234-4109
:
' http://www.gruposinternet.com.br
More information about the Ocfs2-users
mailing list