After ndbd nodes has been restarted the mysqld's will enter "read only" mode...

After ndbd nodes has been restarted the mysqld's will enter "read only" mode until they are fully connected again. Wait in a loop until 
mysqld's has exited from that.

mysql-test/r/ndb_binlog_discover.result

 drop table if exists t1;
 create table t1 (a int key) engine=ndb;
 reset master;
-insert into t1 values(1);
 show binlog events from <binlog_start>;
 Log_name	Pos	Event_type	Server_id	End_log_pos	Info
 master-bin.000001	#	Query	#	#	BEGIN

mysql-test/t/ndb_binlog_discover.test

@@ -14,6 +14,20 @@ reset master;
 --exec $NDB_TOOLS_DIR/ndb_waiter --no-defaults --not-started > /dev/null
 --exec $NDB_MGM --no-defaults -e "all start" > /dev/null
 --exec $NDB_TOOLS_DIR/ndb_waiter --no-defaults > /dev/null
-insert into t1 values(1);
+
+--disable_query_log
+let $mysql_errno= 1;
+while ($mysql_errno)
+{
+  # Table t1 is readonly until the mysqld has reconnected properly
+  --error 0,1036
+  insert into t1 values(1);
+  if ($mysql_errno)
+  {
+    --sleep 0.1
+  }
+}
+--enable_query_log
+
 --source include/show_binlog_events.inc
 drop table t1;