I was following the HowTo for setting up a mysql cluster on 4 machines but hit an error on the second page when starting up the mysql server on the data nodes. Here's my setup: mysql1 -> lb1 & mgm node mysql2 -> data node 1 mysql3 -> data node 2 mysql4 -> lb2 I'm using mysql 5.0.45. All machines had only a base install of Fedora 7 to start with. Before starting the How To, I removed the default MySQL that comes with Fedora via "yum remove mysql" so I don't think it could be a conflict causing the problem. I got the management node setup and running fine. Here is my config.ini: [ndbd default] NoOfReplicas=2 DataDir=/var/lib/mysql-cluster [mysqld default] [ndb_mgmd default] [tcp default] # Section for the cluster management node [ndb_mgmd] # IP address of the management node (this system) HostName=mysql1 # Section for the storage nodes [ndbd] # IP address of the first storage node HostName=mysql2 [ndbd] # IP address of the second storage node HostName=mysql3 # one [MYSQLD] per storage node [mysqld] [mysqld] I then proceeded to setup mysql2 (data node1). Here is my my.cnf for mysql2: [mysqld] ndbcluster ndb-connectstring=mysql1 [mysql_cluster] ndb-connectstring=mysql1 All of the config files actually reference by ip, and I have verified the correct ips, but I removed the ips for this post. I've disabled SELinux, and the firewalls for the time being to rule out those as a cause, with no change. Here's the problem, when I try to start mysql.server after ndbd --initial (the first time), or just ndbd (later time), I receive this output: [[email protected] mysql-cluster]# service mysql.server start Starting MySQL/etc/init.d/mysql.server: line 159: kill: (3180) - No such process [FAILED] Also, attempting to star the server with: [[email protected] mysql-cluster]# /usr/local/mysql/bin/mysqld_safe --user=mysql &  3220  Exit 127 bin/mysqld_safe --user=mysql [[email protected] mysql-cluster]# nohup: ignoring input and redirecting stderr to stdout Starting mysqld daemon with databases from /usr/local/mysql/data STOPPING server from pid file /usr/local/mysql/data/pol-mysql-3.pid 071107 19:48:56 mysqld ended Ends up hanging after that line, but adds the following to /usr/local/mysql/data/mysql2.err: 071107 19:52:41 mysqld started nohup: ignoring input 071107 19:52:41 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 071107 19:52:41 InnoDB: Starting log scan based on checkpoint at InnoDB: log sequence number 0 43655. InnoDB: Doing recovery: scanned up to log sequence number 0 43655 071107 19:52:41 InnoDB: Started; log sequence number 0 43655 071107 19:52:41 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist 071107 19:52:41 mysqld ended Any ideas? What other information could I include to help diagnose the problem?