Enable compile

src/backend/distributed/connection/connection_management.c

@@ -380,6 +380,10 @@ StartNodeUserDatabaseConnection(uint32 flags, const char *hostname, int32 port,
 	PG_END_TRY();
 
 
+	/*
+	 * Cast volatile MultiConnection pointer to MultiConnection pointer
+	 * for ease of use.
+	 */
 	MultiConnection *newConnection = (MultiConnection *) connection;
 
 	dlist_push_tail(entry->connections, &newConnection->connectionNode);

src/backend/distributed/connection/shared_connection_stats.c

@@ -23,7 +23,6 @@
 #include "commands/dbcommands.h"
 #include "distributed/cancel_utils.h"
 #include "distributed/connection_management.h"
-#include "distributed/hash_helpers.h"
 #include "distributed/listutils.h"
 #include "distributed/metadata_cache.h"
 #include "distributed/shared_connection_stats.h"

src/backend/distributed/metadata/node_metadata.c

@@ -1027,6 +1027,9 @@ RemoveNodeFromCluster(char *nodeName, int32 nodePort)
 
 	char *nodeDeleteCommand = NodeDeleteCommand(workerNode->nodeId);
 
+	/* make sure we don't have any lingering session lifespan connections */
+	CloseNodeConnectionsAfterTransaction(workerNode->workerName, nodePort);
+
 	SendCommandToWorkersWithMetadata(nodeDeleteCommand);
 }
 

src/backend/distributed/shared_library_init.c

@@ -963,7 +963,7 @@ RegisterCitusConfigVariables(void)
 		&MaxSharedPoolSize,
 		0, -1, INT_MAX,
 		PGC_SIGHUP, /* TODO: is PGC_POSTMASTER more convinient? */
-		GUC_STANDARD,
+		GUC_SUPERUSER_ONLY,
 		NULL, NULL, MaxSharedPoolSizeGucShowHook);
 
 	DefineCustomIntVariable(