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[ovs-dev,v10.1,5/6] ovn-sb: Allow Multicast_Group to have empty set of ports.

Message ID 20210218195112.1391467-6-blp@ovn.org
State New
Headers show
Series Add DDlog implementation of ovn-northd | expand

Commit Message

Ben Pfaff Feb. 18, 2021, 7:51 p.m. UTC
I don't know a good reason to intentionally create an empty multicast
group, but disallowing empty multicast groups has an odd side effect:
you can delete all but one of the ports that a group contains and the
database will happily remove the ports from the group automatically
(because 'ports' is a set of weak references) but if you try to delete
the last port that the group contained, the database server will reject
the whole transaction.  That's really weird.  By allowing a multicast
group with no ports, we avoid this special case.

Signed-off-by: Ben Pfaff <blp@ovn.org>
 ovn-sb.ovsschema | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/ovn-sb.ovsschema b/ovn-sb.ovsschema
index 0d20f0826646..07eb54b10dd4 100644
--- a/ovn-sb.ovsschema
+++ b/ovn-sb.ovsschema
@@ -1,7 +1,7 @@ 
     "name": "OVN_Southbound",
-    "version": "20.15.0",
-    "cksum": "539683023 25965",
+    "version": "20.16.0",
+    "cksum": "3127541865 25965",
     "tables": {
         "SB_Global": {
             "columns": {
@@ -133,7 +133,7 @@ 
                 "ports": {"type": {"key": {"type": "uuid",
                                            "refTable": "Port_Binding",
                                            "refType": "weak"},
-                                   "min": 1, "max": "unlimited"}}},
+                                   "min": 0, "max": "unlimited"}}},
             "indexes": [["datapath", "tunnel_key"],
                         ["datapath", "name"]],
             "isRoot": true},