Comment 5 for bug 1938766

also, just to leave myself a note for writing the patch in a few hours, it also looks like one reason the issue happens so frequently with the short-living connection for the neutron_pg_drop creation is that we end up sending the transaction *before* we even send the initial monitor request.

jlibosvar has traced some other issues down to a particular python-ovs commit that I believe was the one where they added support for clustered dbs. part of that change (if I am remembering correctly) added connecting to the _Server db. ovsdbapp had a hack to wait until we'd gotten the initial db, idlutils.wait_for_change(). Since there are now several different things going on, wait_for_change() probably doesn't do what we really want, which is "wait until we get the initial dump of the OVN dbs". So we start sending transactions too early sometimes.