From: Pavan Deolasee <pavan.deolasee@gmail.com>
Date: Tue, 19 Jan 2016 10:50:40 +0000 (+0530)
Subject: We don't yet support persistent connections between datanodes
X-Git-Tag: XL9_5_R1BETA1~89
X-Git-Url: http://git.postgresql.org/gitweb/static/gitweb.js?a=commitdiff_plain;h=658430e9f2f0034d42608aac15d9b93b4207f65b;p=postgres-xl.git

We don't yet support persistent connections between datanodes
---

diff --git a/src/backend/pgxc/pool/poolmgr.c b/src/backend/pgxc/pool/poolmgr.c
index 30dd985b2a..fb07018500 100644
--- a/src/backend/pgxc/pool/poolmgr.c
+++ b/src/backend/pgxc/pool/poolmgr.c
@@ -2650,3 +2650,15 @@ pools_maintenance(void)
 	elog(DEBUG1, "Pool maintenance, done in %f seconds, removed %d pools",
 			difftime(time(NULL), now), count);
 }
+
+bool
+check_persistent_connections(bool *newval, void **extra, GucSource source)
+{
+	if (*newval && IS_PGXC_DATANODE)
+	{
+		elog(WARNING, "persistent_datanode_connections = ON is currently not "
+				"supported on datanodes - ignoring");
+		*newval = false;
+	}
+	return true;
+}
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 72311d4ddf..069bcbac7e 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -1717,7 +1717,7 @@ static struct config_bool ConfigureNamesBool[] =
 		},
 		&PersistentConnections,
 		false,
-		NULL, NULL, NULL
+		check_persistent_connections, NULL, NULL
 	},
 	{
 		{"strict_statement_checking", PGC_USERSET, DEVELOPER_OPTIONS,
diff --git a/src/include/pgxc/poolmgr.h b/src/include/pgxc/poolmgr.h
index 5f13490503..38d45cf255 100644
--- a/src/include/pgxc/poolmgr.h
+++ b/src/include/pgxc/poolmgr.h
@@ -25,6 +25,7 @@
 #include "pgxcnode.h"
 #include "poolcomm.h"
 #include "storage/pmsignal.h"
+#include "utils/guc.h"
 #include "utils/hsearch.h"
 
 #define MAX_IDLE_TIME 60
@@ -141,4 +142,7 @@ extern void PoolManagerLock(bool is_lock);
 
 /* Do pool health check activity */
 extern void PoolPingNodes(void);
+
+extern bool check_persistent_connections(bool *newval, void **extra,
+		GucSource source);
 #endif