i have configured mysql-cluster in centos 7
Management Node
- db1 = 192.168.5.130
Data Nodes
- db2 = 192.168.5.131
- db3 = 192.168.5.132
SQL Nodes
- db4 = 192.168.5.133
- db5 = 192.168.5.134
output for management node as follows..
ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)] 2 node(s)
id=2 @192.168.5.131 (mysql-5.6.28 ndb-7.4.10, starting, Nodegroup: 0)
id=3 @192.168.5.132 (mysql-5.6.28 ndb-7.4.10, starting, Nodegroup: 0)
[ndb_mgmd(MGM)] 1 node(s)
id=1 @192.168.5.135 (mysql-5.6.28 ndb-7.4.10)
[mysqld(API)] 2 node(s)
id=4 (not connected, accepting connect from 192.168.5.133)
id=5 (not connected, accepting connect from 192.168.5.134)
data node connected to management node sucessfully.. but sql node is not connected
i have see the some error in ndb_1_cluster.log file.
WARNING -- Failed to allocate nodeid for API at 192.168.5.134. Returned error: 'No free node id found for mysqld(API).'
How to resolve this issue ? Please guide me to configure mysql-cluster
Best Answer
Check your
config.ini
in/var/lib/mysql-cluster/
it should look something like this, should attach nodeid's if your working with more than 2 Data nodes. and most importantly make sure the data nodes your trying to run hasmysql.service
running.systemctl mysql.service status
In my experience, you should run all the ndbd nodes first then the sqld nodes on by one.