WSREP [ERROR] gcs/src/gcs_core.cpp:gcs_core_open():208: Failed to open backend connection: -98 (Address already in use) appears upon restarting mariadb.service

# service mysql restart

2018-04-02 17:24:05 0 [Note] WSREP: Read nil XID from storage engines, skipping position init

2018-04-02 17:24:05 0 [Note] WSREP: wsrep_load(): loading provider library '/usr/lib64/galera/libgalera_smm.so'

2018-04-02 17:24:05 0 [Note] WSREP: wsrep_load(): Galera 25.3.23(r3789) by Codership Oy <info@codership.com> loaded successfully.

2018-04-02 17:24:05 0 [Note] WSREP: CRC-32C: using "slicing-by-8" algorithm.

2018-04-02 17:24:05 0 [Note] WSREP: Found saved state: dff6e041-1005-11e8-85c9-965f304f37bc:-1, safe_to_bootstrap: 1

2018-04-02 17:24:05 0 [Note] WSREP: Passing config to GCS: base_dir = /var/lib/mysql/; base_host = 192.168.104.196; base_port = 4567; cert.log_con           flicts = no; debug = no; evs.auto_evict = 0; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.ina           ctive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 4; evs.stats_report_period = PT1M; evs.susp           ect_timeout = PT5S; evs.user_send_window = 2; evs.view_forget_timeout = PT24H; gcache.dir = /var/lib/mysql/; gcache.keep_pages_size = 0; gcache.me           m_size = 0; gcache.name = /var/lib/mysql//galera.cache; gcache.page_size = 128M; gcache.recover = no; gcache.size = 128M; gcomm.thread_prio = ; gc           s.fc_debug = 0; gcs.fc_factor = 1.0; gcs.fc_limit = 16; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q           _hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout            = PT3S; pc.bootstrap = YES; pc

2018-04-02 17:24:05 0 [Note] WSREP: GCache history reset: dff6e041-1005-11e8-85c9-965f304f37bc:0 -> dff6e041-1005-11e8-85c9-965f304f37bc:131618

2018-04-02 17:24:05 0 [Note] WSREP: Assign initial position for certification: 131618, protocol version: -1

2018-04-02 17:24:05 0 [Note] WSREP: wsrep_sst_grab()

2018-04-02 17:24:05 0 [Note] WSREP: Start replication

2018-04-02 17:24:05 0 [Note] WSREP: Setting initial position to dff6e041-1005-11e8-85c9-965f304f37bc:131618

2018-04-02 17:24:05 0 [Note] WSREP: protonet asio version 0

2018-04-02 17:24:05 0 [Note] WSREP: Using CRC-32C for message checksums.

2018-04-02 17:24:05 0 [Note] WSREP: backend: asio

2018-04-02 17:24:05 0 [Note] WSREP: gcomm thread scheduling priority set to other:0

2018-04-02 17:24:05 0 [Note] WSREP: restore pc from disk successfully

2018-04-02 17:24:05 0 [Note] WSREP: GMCast version 0

2018-04-02 17:24:05 0 [Note] WSREP: (de19f79a, 'tcp://0.0.0.0:4567') listening at tcp://0.0.0.0:4567

2018-04-02 17:24:05 0 [Note] WSREP: (de19f79a, 'tcp://0.0.0.0:4567') multicast: , ttl: 1

2018-04-02 17:24:05 0 [Note] WSREP: EVS version 0

2018-04-02 17:24:05 0 [Note] WSREP: gcomm: connecting to group 'cluster1', peer '192.168.104.193:,192.168.104.195:,192.168.104.196:'

2018-04-02 17:24:05 0 [ERROR] WSREP: bind: Address already in use

2018-04-02 17:24:05 0 [ERROR] WSREP: failed to open gcomm backend connection: 98: error while trying to listen 'tcp://0.0.0.0:4567?socket.non_bloc           king=1', asio error 'bind: Address already in use': 98 (Address already in use)

         at gcomm/src/asio_tcp.cpp:listen():830

2018-04-02 17:24:05 0 [ERROR] WSREP: gcs/src/gcs_core.cpp:gcs_core_open():208: Failed to open backend connection: -98 (Address already in use)

2018-04-02 17:24:05 0 [ERROR] WSREP: gcs/src/gcs.cpp:gcs_open():1458: Failed to open channel 'cluster1' at 'gcomm://192.168.104.193,192.168.104.19           5,192.168.104.196': -98 (Address already in use)

2018-04-02 17:24:05 0 [ERROR] WSREP: gcs connect failed: Address already in use

2018-04-02 17:24:05 0 [ERROR] WSREP: wsrep::connect(gcomm://192.168.104.193,192.168.104.195,192.168.104.196) failed: 7

2018-04-02 17:24:05 0 [ERROR] Aborting