[corosync] why remove lcr from corosync release 2.0.x?

george puttycn at gmail.com
Wed Jun 6 08:29:59 GMT 2012


2012/6/6 Fabio M. Di Nitto <fdinitto at redhat.com>

> On 6/6/2012 10:11 AM, george wrote:
> > Hi,
> >
> > 2012/6/6 Fabio M. Di Nitto <fdinitto at redhat.com
> > <mailto:fdinitto at redhat.com>>
> >
> >     Please keep your replies on the mailing list.
> >
> >     On 6/6/2012 9:47 AM, george wrote:
> >     > Hi,
> >     >
> >     >
> >     > 2012/6/6 Fabio M. Di Nitto <fdinitto at redhat.com
> >     <mailto:fdinitto at redhat.com>
> >     > <mailto:fdinitto at redhat.com <mailto:fdinitto at redhat.com>>>
> >     >
> >     >     On 6/6/2012 9:08 AM, george wrote:
> >     >
> >     >     >
> >     >     > Also pacemaker v1.6.x and cman v3 will use lcr lib in
> >     corosync, so
> >     >     does
> >     >     > it mean pcmk v1.6.x and cman v3 can’t use the newest
> corosync?
> >     >
> >     >     corosync 2.0 has votequorum (see man pages) that obsoleted
> >     cman in the
> >     >     2.0 serie. You will need pcmk 1.1.7 or higher to work with
> that.
> >     >
> >     > 1、Does that mean LCR lib will be permanently deleted from
> >     corosync 2.0 ?
> >
> >     It has been removed permanently already.
> >
> >     >
> >     > 2、corosync 2.0 could only be worked with pcmk 1.1.7 or higher, and
> >     > can't work with cman ?
> >
> >     Yes that is correct. cman has been replaced by votequorum. cman will
> >     only work with corosync 1.4.x (or higher) for several years to come.
> >
> >  How does pcmk use the votequorum service, I can't find any votequorum
> > interface
> > call in pcmk source code.
>
> pcmk doesn´t need to call votequorum directly. votequorum is a quorum
> provider.
>
> clients (such as pcmk) only need to use libquorum.
>
>  I found quorum_initialize is called by init_quorum_connection,but
init_quorum_connection  is only called by crm but not mcp.
Is it only crm care about quorum ?

Best Regards,
Qiu Zhigang

> Fabio
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.corosync.org/pipermail/discuss/attachments/20120606/f6e4ffaf/attachment.html>


More information about the discuss mailing list