Improve MIBUpdater to re-connect DBConnector when re-init data.

src/sonic_ax_impl/mibs/ietf/rfc1213.py

@@ -134,6 +134,9 @@ def __init__(self):
         self.nexthop_map = {}
         self.route_list = []
 
+    def reinit_data(self):
+        Namespace.connect_all_dbs(self.db_conn, mibs.APPL_DB)
+
     def update_data(self):
         """
         Update redis (caches config)
@@ -220,6 +223,7 @@ def reinit_data(self):
         """
         Subclass update interface information
         """
+        Namespace.connect_namespace_dbs(self.db_conn)
         self.if_name_map, \
         self.if_alias_map, \
         self.if_id_map, \

src/sonic_ax_impl/mibs/ietf/rfc2737.py

@@ -287,6 +287,7 @@ def reinit_data(self):
         self.physical_name_to_oid_map = {}
         self.pending_resolve_parent_name_map = {}
 
+        Namespace.connect_all_dbs(self.statedb, mibs.STATE_DB)
         device_metadata = mibs.get_device_metadata(self.statedb[0])
         chassis_sub_id = (CHASSIS_SUB_ID, )
         self.physical_entities = [chassis_sub_id]

src/sonic_ax_impl/mibs/ietf/rfc2863.py

@@ -107,6 +107,7 @@ def reinit_data(self):
         """
         Subclass update interface information
         """
+        Namespace.connect_namespace_dbs(self.db_conn)
         self.if_name_map, \
         self.if_alias_map, \
         self.if_id_map, \

src/sonic_ax_impl/mibs/ietf/rfc3433.py

@@ -386,6 +386,7 @@ def reinit_data(self):
         self.ent_phy_sensor_value_map = {}
         self.ent_phy_sensor_oper_state_map = {}
 
+        Namespace.connect_all_dbs(self.statedb, mibs.STATE_DB)
         transceiver_dom_encoded = Namespace.dbs_keys(self.statedb, mibs.STATE_DB, self.TRANSCEIVER_DOM_KEY_PATTERN)
         if transceiver_dom_encoded:
             self.transceiver_dom = [entry for entry in transceiver_dom_encoded]

src/sonic_ax_impl/mibs/ietf/rfc4292.py

@@ -23,6 +23,7 @@ def reinit_data(self):
         """
         self.loips = {}
 
+        Namespace.connect_all_dbs(self.db_conn, mibs.APPL_DB)
         loopbacks = Namespace.dbs_keys(self.db_conn, mibs.APPL_DB, "INTF_TABLE:lo:*")
         if not loopbacks:
             return

src/sonic_ax_impl/mibs/ietf/rfc4363.py

@@ -45,6 +45,7 @@ def reinit_data(self):
         """
         Subclass update interface information
         """
+        Namespace.connect_namespace_dbs(self.db_conn)
         (
             self.if_name_map,
             self.if_alias_map,

src/sonic_ax_impl/mibs/vendor/cisco/ciscoPfcExtMIB.py

@@ -32,6 +32,7 @@ def reinit_data(self):
         """
         Subclass update interface information
         """
+        Namespace.connect_namespace_dbs(self.db_conn)
         self.if_name_map, \
         self.if_alias_map, \
         self.if_id_map, \

src/sonic_ax_impl/mibs/vendor/cisco/ciscoSwitchQosMIB.py

@@ -71,6 +71,7 @@ def reinit_data(self):
         """
         Subclass update interface information
         """
+        Namespace.connect_namespace_dbs(self.db_conn)
         self.if_name_map, \
         self.if_alias_map, \
         self.if_id_map, \