Changing the cookie in a running system
Igor Ribeiro Sucupira
Fri Dec 17 01:42:15 CET 2010
I am planning to change the cookie on a running Erlang pool (by
calling erlang:set_cookie/2 via RPC on all nodes).
Does that procedure create any communication problems between the
nodes, while the cookie is being changed?
I believe the cookie is only used when the nodes connect to each other
for the first time, so that changing it later should be safe. Am I
P.S.: I'm not worried about stored cookies and what will happen
whenever any node is restarted or added to the pool (we'll deal with
that). I am interested in what happens when erlang:set_cookie/2 is
called in a node that is already in the pool.
"The secret of joy in work is contained in one word - excellence. To
know how to do something well is to enjoy it." - Pearl S. Buck.
More information about the erlang-questions