From: Andrew Tridgell <tridge@samba.org>
Date: Sat, 9 Jun 2007 22:46:33 +0000 (+1000)
Subject: - send tcp info to all connected nodes, not just vnnmap nodes
X-Git-Tag: tevent-0.9.20~348^2~2506
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=044a2e04c43a05e559500010560ea8a4d533fb97;p=thirdparty%2Fsamba.git

- send tcp info to all connected nodes, not just vnnmap nodes
- use a non-blocking freeze when banned
- release all IPs when banned

(This used to be ctdb commit 070e85e532b33b792f85c3e72eee205d906aaf85)
---

diff --git a/ctdb/include/ctdb_private.h b/ctdb/include/ctdb_private.h
index 989d837568c..d1402725131 100644
--- a/ctdb/include/ctdb_private.h
+++ b/ctdb/include/ctdb_private.h
@@ -1022,4 +1022,6 @@ int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
 			       uint32_t destnode,
 			       struct ctdb_tunable *tunables);
 
+void ctdb_start_freeze(struct ctdb_context *ctdb);
+
 #endif
diff --git a/ctdb/server/ctdb_daemon.c b/ctdb/server/ctdb_daemon.c
index f138b9d8bc0..a483a3a116e 100644
--- a/ctdb/server/ctdb_daemon.c
+++ b/ctdb/server/ctdb_daemon.c
@@ -54,6 +54,12 @@ static void flag_change_handler(struct ctdb_context *ctdb, uint64_t srvid,
 		(ctdb->nodes[c->vnn]->flags&NODE_FLAGS_DISCONNECTED) 
 		| (c->flags & ~NODE_FLAGS_DISCONNECTED);	
 	DEBUG(2,("Node flags for node %u are now 0x%x\n", c->vnn, ctdb->nodes[c->vnn]->flags));
+
+	/* make sure we don't hold any IPs when we shouldn't */
+	if (c->vnn == ctdb->vnn &&
+	    (ctdb->nodes[c->vnn]->flags & (NODE_FLAGS_INACTIVE|NODE_FLAGS_BANNED))) {
+		ctdb_release_all_ips(ctdb);
+	}
 }
 
 /* called when the "startup" event script has finished */
diff --git a/ctdb/server/ctdb_freeze.c b/ctdb/server/ctdb_freeze.c
index 73e98d3333d..dbc9725130e 100644
--- a/ctdb/server/ctdb_freeze.c
+++ b/ctdb/server/ctdb_freeze.c
@@ -182,23 +182,36 @@ static int ctdb_freeze_waiter_destructor(struct ctdb_freeze_waiter *w)
 }
 
 /*
-  freeze the databases
+  start the freeze process
  */
-int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply)
+void ctdb_start_freeze(struct ctdb_context *ctdb)
 {
-	struct ctdb_freeze_waiter *w;
-
 	if (ctdb->freeze_mode == CTDB_FREEZE_FROZEN) {
 		/* we're already frozen */
-		return 0;
+		return;
 	}
 
 	/* if there isn't a freeze lock child then create one */
 	if (!ctdb->freeze_handle) {
 		ctdb->freeze_handle = ctdb_freeze_lock(ctdb);
-		CTDB_NO_MEMORY(ctdb, ctdb->freeze_handle);
+		CTDB_NO_MEMORY_VOID(ctdb, ctdb->freeze_handle);
 		ctdb->freeze_mode = CTDB_FREEZE_PENDING;
 	}
+}
+
+/*
+  freeze the databases
+ */
+int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply)
+{
+	struct ctdb_freeze_waiter *w;
+
+	if (ctdb->freeze_mode == CTDB_FREEZE_FROZEN) {
+		/* we're already frozen */
+		return 0;
+	}
+
+	ctdb_start_freeze(ctdb);
 
 	/* add ourselves to list of waiters */
 	w = talloc(ctdb->freeze_handle, struct ctdb_freeze_waiter);
@@ -220,17 +233,7 @@ int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *
  */
 bool ctdb_blocking_freeze(struct ctdb_context *ctdb)
 {
-	if (ctdb->freeze_mode == CTDB_FREEZE_FROZEN) {
-		/* we're already frozen */
-		return true;
-	}
-
-	/* if there isn't a freeze lock child then create one */
-	if (!ctdb->freeze_handle) {
-		ctdb->freeze_handle = ctdb_freeze_lock(ctdb);
-		CTDB_NO_MEMORY(ctdb, ctdb->freeze_handle);
-		ctdb->freeze_mode = CTDB_FREEZE_PENDING;
-	}
+	ctdb_start_freeze(ctdb);
 
 	/* block until frozen */
 	while (ctdb->freeze_mode == CTDB_FREEZE_PENDING) {
diff --git a/ctdb/server/ctdb_monitor.c b/ctdb/server/ctdb_monitor.c
index 73938a32b18..a7a61af1d7a 100644
--- a/ctdb/server/ctdb_monitor.c
+++ b/ctdb/server/ctdb_monitor.c
@@ -219,9 +219,8 @@ int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata)
 	if ((node->flags & NODE_FLAGS_BANNED) && !(old_flags & NODE_FLAGS_BANNED)) {
 		/* make sure we are frozen */
 		DEBUG(0,("This node has been banned - forcing freeze and recovery\n"));
-		if (!ctdb_blocking_freeze(ctdb)) {
-			ctdb_fatal(ctdb, "Unable to freeze when banned");
-		}
+		ctdb_start_freeze(ctdb);
+		ctdb_release_all_ips(ctdb);
 		ctdb->recovery_mode = CTDB_RECOVERY_ACTIVE;
 	}
 	
diff --git a/ctdb/takeover/ctdb_takeover.c b/ctdb/takeover/ctdb_takeover.c
index b9fefe610fe..a439b855ba2 100644
--- a/ctdb/takeover/ctdb_takeover.c
+++ b/ctdb/takeover/ctdb_takeover.c
@@ -247,7 +247,7 @@ static void release_ip_callback(struct ctdb_context *ctdb, int status,
 			data.dptr = (uint8_t *)&t;
 			data.dsize = sizeof(t);
 
-			ctdb_daemon_send_control(ctdb, CTDB_BROADCAST_VNNMAP, 0, 
+			ctdb_daemon_send_control(ctdb, CTDB_BROADCAST_CONNECTED, 0, 
 						 CTDB_CONTROL_TCP_ADD,
 						 0, CTDB_CTRL_FLAG_NOREPLY, data, NULL, NULL);
 		}
@@ -469,7 +469,6 @@ int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap)
 
 	/* at this point ctdb->nodes[i]->takeover_vnn is the vnn which will own each IP */
 
-
 	/* now tell all nodes to delete any alias that they should not
 	   have.  This will be a NOOP on nodes that don't currently
 	   hold the given alias */
@@ -557,7 +556,7 @@ int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id, u
 	data.dsize = sizeof(t);
 
 	/* tell all nodes about this tcp connection */
-	ret = ctdb_daemon_send_control(ctdb, CTDB_BROADCAST_VNNMAP, 0, 
+	ret = ctdb_daemon_send_control(ctdb, CTDB_BROADCAST_CONNECTED, 0, 
 				       CTDB_CONTROL_TCP_ADD,
 				       0, CTDB_CTRL_FLAG_NOREPLY, data, NULL, NULL);
 	if (ret != 0) {
@@ -703,7 +702,7 @@ void ctdb_takeover_client_destructor_hook(struct ctdb_client *client)
 		p.dest = tcp->daddr;
 		data.dptr = (uint8_t *)&p;
 		data.dsize = sizeof(p);
-		ctdb_daemon_send_control(client->ctdb, CTDB_BROADCAST_VNNMAP, 0, 
+		ctdb_daemon_send_control(client->ctdb, CTDB_BROADCAST_CONNECTED, 0, 
 					 CTDB_CONTROL_TCP_REMOVE,
 					 0, CTDB_CTRL_FLAG_NOREPLY, data, NULL, NULL);
 		talloc_free(tcp);