[ClusterLabs] [corosync] Master branch

Jan Friesse jfriesse at redhat.com
Wed Oct 12 02:22:25 EDT 2016

> I've just committed a bit patch to the master branch of corosync - it is
> now all very experimental, and existing pull requests against master
> might need to be checked. This starts the work on what will hopefully

Thanks Chrissie, nice work.

I must highlight "it is now all very experimental". Of course we will be 
more than happy for feedback/bug reports (like 
https://github.com/corosync/corosync/issues/158) but if you want 
something working and tested use "needle" branch/official releases.


> become corosync 3.0
> The commit is to make Kronosnet the new, default, transport for
> corosync. It might take a while to get this fully stabilised but I've
> been running it myself for a while now and it seems pretty reliable.
> Here are the commit notes:
>      totem: Add Kronosnet transport.
>      This is a big update that removes RRP & MRP from the codebase
>      and makes knet the default transport for corosync. UDP & UDPU
>      are still (currently) supported but are deprecated. Also crypto
>      and mutiple interfaces are only supported over knet.
>      To compile this codebase you will need to install libknet from
>      https://github.com/fabbione/kronosnet
>      The corosync.conf(5) man page has been updated with info on the new
>      options. Older config files should still work but many options
>      have changed because of the knet implementation so configs should
>      be checked carefully. In particular any cluster using using RRP
>      over UDP or UDPU will not start as RRP is no longer present. If you
>      need multiple interface support then you should be using the knet
> transport.
>      Knet brings many benefits to the corosync codebase, it provides support
>      for more interfaces than RRP (up to 8), will be more reliable in the
> event
>      of network outages and allows dynamic reconfiguration of interfaces.
>      It also fixes the ifup/ifdown and binding problems that have
>      plagued corosync/openais from day 1
>      Signed-off-by: Christine Caulfield <ccaulfie at redhat.com>
> Chrissie
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