Some Essential checks

Check keeper : 

 

 echo ruok | nc 127.0.0.1 9181 

 sudo systemctl restart clickhouse-keeper 

 

 

 Check cluster 

 SELECT * FROM system . clusters WHERE cluster = 'default' ; 

   

   

   

 Additional Keeper tests 

 Cluster monitoring 

 

 

 

 

 

 

 echo mntr | nc 127.0.0.1 9181

 

 

 Should show: 

 

 

 

 

 

 

 zk_server_state leader ( on one node)

zk_server_state follower ( on other two nodes)

 

 

 Server stats 

 

 

 

 

 

 

 echo stat | nc 127.0.0.1 9181

 

 

 List znodes 

 

 

 

 

 

 

 echo ls / | nc 127.0.0.1 9181