ERROR WSREP`: gcs/src/gcs.cpp:gcs_open():1379:` Failed to open channel 'test_cluster' I have three server that I want to Install Galera clustering on them, I followed this link to install and config it. but when I want to start the first server I got this error : 

root@node107:/home/debian# service mysql start --wsrep-new-clusterping 
Job for mysql.service failed. See 'systemctl status mysql.service' and 'journalctl -xn' for details.


and : 

root@node107:/home/debian# journalctl -xn
-- Logs begin at Tue 2016-03-01 19:02:04 IRST, end at Tue 2016-03-01 19:39:32 IRST. --
Mar 01 19:39:31 node107 mysqld[5102]: 160301 19:39:31 [ERROR] WSREP: gcs/src/gcs.cpp:gcs_open():1379: Failed to open channel 'test_cluster' at 'gcomm://192.168.120.107,192.168.120.111,192.168.120.11
Mar 01 19:39:31 node107 mysqld[5102]: 160301 19:39:31 [ERROR] WSREP: gcs connect failed: Connection timed out
Mar 01 19:39:31 node107 mysqld[5102]: 160301 19:39:31 [ERROR] WSREP: wsrep::connect(gcomm://192.168.120.107,192.168.120.111,192.168.120.117) failed: 7
Mar 01 19:39:31 node107 mysqld[5102]: 160301 19:39:31 [ERROR] Aborting
Mar 01 19:39:31 node107 mysqld[5102]: 
Mar 01 19:39:31 node107 mysqld[5102]: 160301 19:39:31 [Note] WSREP: Service disconnected.
Mar 01 19:39:32 node107 mysqld[5102]: 160301 19:39:32 [Note] WSREP: Some threads may fail to exit.
Mar 01 19:39:32 node107 mysqld[5102]: 160301 19:39:32 [Note] /usr/sbin/mysqld: Shutdown complete
Mar 01 19:39:32 node107 mysqld[5102]: 
Mar 01 19:39:32 node107 mysqld_safe[5378]: mysqld from pid file /var/run/mysqld/mysqld.pid ended


these are configuration file for the three servers : 

vim /etc/mysql/conf.d/cluster.cnf

Server1 : 

[mysqld]
query_cache_size=0
binlog_format=ROW
default-storage-engine=innodb
innodb_autoinc_lock_mode=2
query_cache_type=0
bind-address=0.0.0.0

# Galera Provider Configuration
wsrep_provider=/usr/lib/galera/libgalera_smm.so
#wsrep_provider_options="gcache.size=32G"

# Galera Cluster Configuration
wsrep_cluster_name="test_cluster"
wsrep_cluster_address="gcomm://192.168.120.107,192.168.120.111,192.168.120.117"
#wsrep_cluster_address="gcomm://192.168.120.107"

# Galera Synchronization Congifuration
wsrep_sst_method=rsync
#wsrep_sst_auth=user:pass

# Galera Node Configuration
wsrep_node_address="192.168.120.107"
wsrep_node_name="node107"


Server 2:

[mysqld]
query_cache_size=0
binlog_format=ROW
default-storage-engine=innodb
innodb_autoinc_lock_mode=2
query_cache_type=0
bind-address=0.0.0.0

# Galera Provider Configuration
wsrep_provider=/usr/lib/galera/libgalera_smm.so
#wsrep_provider_options="gcache.size=32G"

# Galera Cluster Configuration
wsrep_cluster_name="test_cluster"
wsrep_cluster_address="gcomm://192.168.120.107"
#wsrep_cluster_address="gcomm://192.168.120.107,192.168.120.111,192.168.120.117"

# Galera Synchronization Congifuration
wsrep_sst_method=rsync
#wsrep_sst_auth=user:pass

# Galera Node Configuration
wsrep_node_address="192.168.120.111"
wsrep_node_name="node111"


server 3 : 

[mysqld]
query_cache_size=0
binlog_format=ROW
default-storage-engine=innodb
innodb_autoinc_lock_mode=2
query_cache_type=0
bind-address=0.0.0.0

# Galera Provider Configuration
wsrep_provider=/usr/lib/galera/libgalera_smm.so
#wsrep_provider_options="gcache.size=32G"

# Galera Cluster Configuration
wsrep_cluster_name="test_cluster"
wsrep_cluster_address="gcomm://192.168.120.107,192.168.120.111,192.168.120.117"

# Galera Synchronization Congifuration
wsrep_sst_method=rsync
#wsrep_sst_auth=user:pass

# Galera Node Configuration
wsrep_node_address="192.168.120.117"
wsrep_node_name="node117"


I don't understand what I have missed. what should I do?
We should start the first node without below parameter in my.cnf :
    wsrep_cluster_address="gcomm://192.168.120.107,192.168.120.111,192.168.120.117"

Then start the other nodes normally :

/etc/init.d/mysql start


The first node should start normally like the others.