ctdb-tools: Drop "ctdb rebalanceip"

This is undocumented and is not needed.  It was a workaround for
trying to ensure public IP addresses are properly rebalanced after
running "ctdb addip" on multiple nodes.  "ctdb reloadips" is a better
solution.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

ctdb/doc/ctdb.1.xml

@@ -1741,7 +1741,7 @@ Server id 0:14765 exists
 
   <!-- UNDOCUMENTED: showban stats disablemonitor enablemonitor
        isnotrecmaster addtickle deltickle regsrvid unregsrvid chksrvid
-       getsrvids rebalanceip setdbprio getdbprio msglisten msgsend
+       getsrvids setdbprio getdbprio msglisten msgsend
        tfetch tstore readkey writekey
        checktcpport getdbseqnum ipiface
   -->

ctdb/server/ctdb_takeover.c

@@ -908,7 +908,7 @@ int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
 	talloc_free(vnn->takeover_ctx);
 	vnn->takeover_ctx = NULL;
 
-	/* Some ctdb tool commands (e.g. moveip, rebalanceip) send
+	/* Some ctdb tool commands (e.g. moveip) send
 	 * lazy multicast to drop an IP from any node that isn't the
 	 * intended new node.  The following causes makes ctdbd ignore
 	 * a release for any address it doesn't host.

ctdb/tools/ctdb.c

@@ -1848,82 +1848,6 @@ done:
 	return ret;
 }
 
-static int rebalance_ip(struct ctdb_context *ctdb, ctdb_sock_addr *addr)
-{
-	struct ctdb_public_ip ip;
-	int ret;
-	uint32_t *nodes;
-	uint32_t disable_time;
-	TDB_DATA data;
-	struct ctdb_node_map_old *nodemap=NULL;
-	TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
-
-	disable_time = 30;
-	data.dptr  = (uint8_t*)&disable_time;
-	data.dsize = sizeof(disable_time);
-	ret = ctdb_client_send_message(ctdb, CTDB_BROADCAST_CONNECTED, CTDB_SRVID_DISABLE_IP_CHECK, data);
-	if (ret != 0) {
-		DEBUG(DEBUG_ERR,("Failed to send message to disable ipcheck\n"));
-		return -1;
-	}
-
-	ip.pnn  = -1;
-	ip.addr = *addr;
-
-	data.dptr  = (uint8_t *)&ip;
-	data.dsize = sizeof(ip);
-
-	ret = ctdb_ctrl_getnodemap(ctdb, TIMELIMIT(), options.pnn, tmp_ctx, &nodemap);
-	if (ret != 0) {
-		DEBUG(DEBUG_ERR, ("Unable to get nodemap from node %u\n", options.pnn));
-		talloc_free(tmp_ctx);
-		return ret;
-	}
-
-       	nodes = list_of_active_nodes(ctdb, nodemap, tmp_ctx, true);
-	ret = ctdb_client_async_control(ctdb, CTDB_CONTROL_RELEASE_IP,
-					nodes, 0,
-					LONGTIMELIMIT(),
-					false, data,
-					NULL, NULL,
-					NULL);
-	if (ret != 0) {
-		DEBUG(DEBUG_ERR,("Failed to release IP on nodes\n"));
-		talloc_free(tmp_ctx);
-		return -1;
-	}
-
-	talloc_free(tmp_ctx);
-	return 0;
-}
-
-/*
-  release an ip form all nodes and have it re-assigned by recd
- */
-static int control_rebalanceip(struct ctdb_context *ctdb, int argc, const char **argv)
-{
-	ctdb_sock_addr addr;
-
-	assert_single_node_only();
-
-	if (argc < 1) {
-		usage();
-		return -1;
-	}
-
-	if (parse_ip(argv[0], NULL, 0, &addr) == 0) {
-		DEBUG(DEBUG_ERR,("Wrongly formed ip address '%s'\n", argv[0]));
-		return -1;
-	}
-
-	if (rebalance_ip(ctdb, &addr) != 0) {
-		DEBUG(DEBUG_ERR,("Error when trying to reassign ip\n"));
-		return -1;
-	}
-
-	return 0;
-}
-
 static int getips_store_callback(void *param, void *data)
 {
 	struct ctdb_public_ip *node_ip = (struct ctdb_public_ip *)data;
@@ -6365,7 +6289,6 @@ static const struct {
 	{ "listnodes",       control_listnodes,		false,	true, "list all nodes in the cluster"},
 	{ "reloadnodes",     control_reload_nodes_file,	false,	false, "reload the nodes file and restart the transport on all nodes"},
 	{ "moveip",          control_moveip,		false,	false, "move/failover an ip address to another node", "<ip> <node>"},
-	{ "rebalanceip",     control_rebalanceip,	false,	false, "release an ip from the node and let recd rebalance it", "<ip>"},
 	{ "addip",           control_addip,		true,	false, "add a ip address to a node", "<ip/mask> <iface>"},
 	{ "delip",           control_delip,		false,	false, "delete an ip address from a node", "<ip>"},
 	{ "eventscript",     control_eventscript,	true,	false, "run the eventscript with the given parameters on a node", "<arguments>"},