[erlang-questions] gen_leader usage/pointers
Juan Jose Comellas
Thu Sep 23 15:09:21 CEST 2010
Thanks, I'll definitely look at that version, as adding nodes during runtime
would be a big plus. Are you already using this version in OpenACD?
I need a master/slave setup so that one node can take over another node's
mod_event_socket connection to FreeSWITCH when we have to take out the
original node or when it crashes.
On Wed, Sep 22, 2010 at 8:02 PM, Andrew Thompson <andrew@REDACTED> wrote:
> On Thu, Sep 23, 2010 at 12:52:43AM +0200, Piotr Kaleta wrote:
> > First of all, few (if not all) versions of gen_leader implementations
> > has been gathered on github here:
> > http://github.com/KirinDave/gen_leader_revival.
> > As README says, you should use the 'combined_version'.
> > A good starting point with tutorial is located at:
> > However you should remember that current versions of gen_leader works in
> > a way that you have to statically define the list of nodes that can
> > become master in case of other nodes failure. Current implementations
> > however, are incapable of adding nodes that might claim master role in
> > future, at runtime. This makes gen_leader incapable of working in
> > unstable environments when all of master nodes might go down for some
> > reason.
> KirinDave's fork might lack this functionality, but abecciu's fork
> supports adding candidates at runtime (as well as some additional fixes
> that Dave hasn't merged). We've also cleaned gen_leader up to be an
> actual erlang project (rebar/makefile, appfile, etc).
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