On 29 Jun 2014, at 2:45 pm, Patrick Hemmer <pacema...@feystorm.net> wrote:
> From: Andrew Beekhof <and...@beekhof.net> > Sent: 2014-06-21 21:40:44 EDT > To: The Pacemaker cluster resource manager <pacemaker@oss.clusterlabs.org> > Subject: Re: [Pacemaker] Alternative communication engine to corosync > (etcd/consul/zookeeper/doozerd) > >> IF someone else implemented such a thing I would be happy to look at >> including support for it. >> But knowing what I do about the "joy" that went into writing CPG, there is >> no way that someone is going to be me. >> >> >> >>>>> I think pacemaker might be able to use a key/value store natively. >>>>> >>> But I wouldn't even bother with hacking a KVS into something like CPG if >>> it's not needed. I would do it such that the CIB is stored as keys and >>> values natively. I would even think this is more efficient. I'm not sure >>> how the CIB is transmitted between nodes, but I think it easiest to just >>> set a single key when you want to update something like a resource's >>> last-rc-change value. >>> >> CPG is used for a lot more that just keeping the CIB in sync. >> I did look at some other KVP stores late last year for the CIB, but I was >> able to get O(2) speedup without it. >> > > Does this mean you had something working, even just partially? No. It was a thought experiment only. I stopped at the point I realised how invasive it would be. > If so, do you still have that code around? > I might be interested in taking a look at this, and having a starting point > would be helpful. > > -Patrick > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org
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