MariaDB Galera 集群 - 第三個節點無法啟動/連接

我正在嘗試建立一個 MariaDB galera 集群。前 2 個節點執行良好，讓它們啟動並連接。

在第三個節點上，它不會啟動/連接。

# service mysql start
Starting mysql (via systemctl):  Job for mariadb.service failed because a timeout was exceeded. See "systemctl status mariadb.service" and "journalctl -xe" for details.
                                                          [FAILED]

日記 -xe 輸出：

Jan 19 09:16:07 host3.domain.com systemd[1]: mariadb.service start operation timed out. Terminating.
-- Subject: Unit session-c9591.scope has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- The start-up result is done.

-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit session-c9591.scope has begun starting up.
Jan 19 09:17:01 host3.domain.com CROND[1018]: (root) CMD (/usr/local/rtm/bin/rtm 8 > /dev/null 2> /dev/null)
Jan 19 09:17:38 host3.domain.com systemd[1]: mariadb.service stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.
Jan 19 09:17:38 host3.domain.com systemd[1]: Failed to start MariaDB 10.1.30 database server.
-- Subject: Unit mariadb.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit mariadb.service has failed.
-- 
-- The result is failed.
Jan 19 09:17:38 host3.domain.com systemd[1]: Unit mariadb.service entered failed state.
Jan 19 09:17:38 host3.domain.com systemd[1]: mariadb.service failed.
Jan 19 09:17:38 host3.domain.com polkitd[383]: Unregistered Authentication Agent for unix-process:25848:56441890 (system bus name :1.19233, object path /org/freedesktop/PolicyKit1/Authentic
Jan 19 09:17:51 host3.domain.com mysqld[25932]: 2018-01-19  9:17:51 114327532205824 [Note] WSREP: (15573658, 'tcp://0.0.0.0:4567') connection to peer 00000000 with addr  timed out, no messa
Jan 19 09:18:01 host3.domain.com systemd[1]: Started Session c9592 of user root.
-- Subject: Unit session-c9592.scope has finished start-up
-- Defined-By: systemd

我不清楚為什麼它會超時，為什麼連接到自身？我應該生成另一個日誌文件來提供更多線索嗎？我在系統日誌中確認了錯誤

[Note] WSREP: (15573658, 'tcp://0.0.0.0:4567') connection to peer 00000000 with addr  timed out, no messa

缺少的地址是內部私有 IP。

對我來說，解決方法就是拆除整個集群並重新啟動它。

在每個節點上：

服務 mysql 停止

在最先進的節點上

#galley_new_cluster

在每個後續節點上

服務 mysql 啟動

驗證：

瑪麗亞數據庫$$ (none) $$> 顯示全域狀態，如“%wsrep_cluster_size%”；

+--------------------+-------+
| Variable_name      | Value |
+--------------------+-------+
| wsrep_cluster_size | 3     |
+--------------------+-------+
1 row in set (0.00 sec)

引用自：https://serverfault.com/questions/893050