MySQL群集：SQL节点启动但不连接到管理节点

Question

我正在尝试在三台运行Centos 5.8的虚拟机上设置MySQL群集。目前管理节点和数据节点正确连接，但是当我启动sql节点时，mysql启动但没有与管理节点的连接。没有错误。我已经做了一些搜索，发现了类似的声音问题，但没有一个解决方案对我有用。不知道如何继续。

我很确定这些是可靠的，但这是我的配置文件：

的config.ini

      [ndbd default]
        # Options affecting ndbd processes on all data nodes:
        NoOfReplicas=2    # Number of replicas

        [tcp default]
        # TCP/IP options:

        [ndb_mgmd]
        # Management process options:
        hostname=172.31.1.32        # Hostname or IP address of MGM node
        datadir=/var/lib/mysql-cluster  # Directory for MGM node log files
        NodeId=1

        [ndbd]
        # Options for data node-1:
                                        # (one [ndbd] section per data node)
        hostname=172.31.1.30            # Hostname or IP address
        datadir=/usr/local/mysql/data   # Directory for this data node's data files
        NodeId=2

        [ndbd]
        # Options for data node-2:
        hostname=172.31.1.31          # Hostname or IP address
        datadir=/usr/local/mysql/data   # Directory for this data node's data files
        NodeId=3

        #one [mysqld] per storage node
        [mysqld]
        [mysqld]

的/etc/my.cnf：

       [mysqld]
        ndbcluster
        ndb-connectstring=172.31.1.32

        [mysql_cluster]
        ndb-connectstring=172.31.1.32

       Cluster Configuration
        ---------------------
        [ndbd(NDB)]     2 node(s)
        id=2     @172.31.1.30    (mysql-5.1.63 ndb-7.1.23, Nodegroup: 0, Master)
        id=3     @172.31.1.31    (mysql-5.1.63 ndb-7.1.23, Nodegroup: 0)

        [ndb_mgmd(MGM)] 1 node(s)
        id=1     @172.31.1.32    (mysql-5.1.63 ndb-7.1.23)

        [mysqld(API)]   2 node(s)
        id=4 (not connected, accepting connect from 172.31.1.30)
        id=5 (not connected, accepting connect from 172.31.1.31)