Thanks Numan
I think that supporting OVNDB and ovn-northd HA depend on one pacemaker is an idea, In case of thinking OVN-HA, user will not individually care about OVNDB or ovn-northd HA. Thanks. 在 2017-05-18 20:53:22，"Numan Siddique" <[email protected]> 写道： On Wed, May 17, 2017 at 9:15 PM, Ben Pfaff <[email protected]> wrote: From: Zhengwei Gao <[email protected]> As ovn-northd servcie parse network element between ovnnb_db and ovnsb_db, it ensures ovn-northd service connecting to ovnnb_db and ovnsb_db. OVNDB-HA was supported with pacemaker, ovn-northd service will be failover fllowing OVNDB-HA. --- This was posted as a github pull request: https://github.com/openvswitch/ovs/pull/176 ovn/utilities/ovndb-servers.ocf | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/ovn/utilities/ovndb-servers.ocf b/ovn/utilities/ovndb-servers.ocf index 908cb3c17d84..40c55411e828 100755 --- a/ovn/utilities/ovndb-servers.ocf +++ b/ovn/utilities/ovndb-servers.ocf @@ -122,8 +122,12 @@ ovsdb_server_notify() { # the right thing at startup ocf_log debug "ovndb_server: $host_name is the master" ${CRM_ATTR_REPL_INFO} -v "$host_name" + # Startup ovn-northd service + ${OVN_CTL} start_northd else + # Stop ovn-northd service + ${OVN_CTL} stop_northd # Synchronize with the new master ocf_log debug "ovndb_server: Connecting to the new master ${OCF_RESKEY_CRM_meta_notify_promote_uname}" ${OVN_CTL} demote_ovnnb --db-nb-sync-from-addr=${MASTER_IP} \ I tried this patch and it works. In the case of OpenStack and Tripleo, puppet is used to create and manage the pacemaker resources for OVN [1] and it also starts ovn-northd as a pacemaker service with colocation constraint set to the virtual ip created for the OVN DB servers. I think it makes more sense to start ovn-northd based on a flag (like START_NORTHD) so that the user or the configuration systems can chose. Thanks Numan [1] - https://review.openstack.org/#/c/372274/10/manifests/profile/pacemaker/ovn_northd.pp -- 2.10.2 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
