MariaDB 服务处于活动状态但有错误，不适用于起搏器

问题描述

我将 mariaDB 数据文件的路径更改为 /mnt/datosDRBD/mariaDB

iba@iba-master2:/$ mysql -u root -p -e "SELECT @@datadir;"
Enter password: 
+-------------------------+
| @@datadir               |
+-------------------------+
| /mnt/datosDRBD/mariaDB/ |
+-------------------------+
iba@iba-master2:/$ 

我的服务 mariadb.service 启动，它可以工作，但显示错误：

iba@iba-master2:/$ sudo systemctl status mariadb.service 
● mariadb.service - MariaDB 10.3.25 database server
     Loaded: loaded (/lib/systemd/system/mariadb.service; disabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-03-31 10:31:25 CEST; 7min ago
       Docs: man:mysqld(8)
             https://mariadb.com/kb/en/library/systemd/
    Process: 13304 ExecStartPre=/usr/bin/install -m 755 -o mysql -g root -d /var/run/mysqld (code=exited,status=0/SUCCESS)
    Process: 13312 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited,status=0/SUCCESS)
    Process: 13315 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= ||   VAR=`cd /usr/bin/..; /usr/bin/galera_recovery`; [ $? -eq 0 ]   && systemctl se>
    Process: 13394 ExecStartPost=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited,status=0/SUCCESS)
    Process: 13396 ExecStartPost=/etc/mysql/debian-start (code=exited,status=0/SUCCESS)
   Main PID: 13362 (mysqld)
     Status: "Taking your SQL requests now..."
      Tasks: 31 (limit: 18726)
     Memory: 67.8M
     CGroup: /system.slice/mariadb.service
             └─13362 /usr/sbin/mysqld

mar 31 10:31:24 iba-master2 mysqld[13362]: 2021-03-31 10:31:24 0 [Warning] Could not increase number of max_open_files to more than 16384 (request: 32198)
mar 31 10:31:25 iba-master2 systemd[1]: Started MariaDB 10.3.25 database server.
mar 31 10:31:25 iba-master2 /etc/mysql/debian-start[13398]: Upgrading MySQL tables if necessary.
mar 31 10:31:25 iba-master2 /etc/mysql/debian-start[13401]: Looking for 'mysql' as: /usr/bin/mysql
mar 31 10:31:25 iba-master2 /etc/mysql/debian-start[13401]: Looking for 'mysqlcheck' as: /usr/bin/mysqlcheck
mar 31 10:31:25 iba-master2 /etc/mysql/debian-start[13401]: Version check failed. Got the following error when calling the 'mysql' command line client
mar 31 10:31:25 iba-master2 /etc/mysql/debian-start[13401]: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
mar 31 10:31:25 iba-master2 /etc/mysql/debian-start[13401]: FATAL ERROR: Upgrade failed
mar 31 10:31:25 iba-master2 /etc/mysql/debian-start[13411]: Checking for insecure root accounts.
mar 31 10:31:25 iba-master2 debian-start[13414]: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
lines 1-27/27 (END)

我做不到：

iba@iba-master2:/$ mysql -u root
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
iba@iba-master2:/$ 

因为我有 root 的密码。

我不知道是否只有 localhost 主机是正确的：

iba@iba-master2:/$ mysql -u root -p -e "select user,host from mysql.user;"
Enter password: 
+------+-----------+
| user | host      |
+------+-----------+
| root | localhost |
+------+-----------+
iba@iba-master2:/$

该服务是手动启动的，即使出现错误也能正常工作。但它不是从“pcs”（起搏器）开始，它应该在挂载文件系统后开始。

iba@iba-master2:/$ sudo pcs status
[sudo] password for iba: 
Cluster name: cluster_iba
Cluster Summary:
  * Stack: corosync
  * Current DC: iba-master2 (version 2.0.3-4b1f869f0f) - partition with quorum
  * Last updated: Wed Mar 31 10:57:22 2021
  * Last change:  Tue Mar 30 16:49:47 2021 by root via cibadmin on iba-master2
  * 2 nodes configured
  * 6 resource instances configured

Node List:
  * Online: [ iba-master1 iba-master2 ]

Full List of Resources:
  * virtual_ip  (ocf::heartbeat:IPaddr2):    Started iba-master2
  * Clone Set: DrbdData-clone [DrbdData] (promotable):
    * Masters: [ iba-master2 ]
    * Slaves: [ iba-master1 ]
  * DrbdFS  (ocf::heartbeat:Filesystem):     Started iba-master2
  * WebServer   (ocf::heartbeat:apache):     Started iba-master2
  * Maria   (ocf::heartbeat:mysql):  Stopped

Failed Resource Actions:
  * Maria_start_0 on iba-master2 'error' (1): call=33,status='complete',exitreason='MySQL server failed to start (pid=3132) (rc=0),please check your installation',last-rc-change='2021-03-31 10:01:47 +02:00',queued=0ms,exec=4686ms
  * Maria_start_0 on iba-master1 'error' (1): call=27,exitreason='MySQL server failed to start (pid=2776) (rc=0),last-rc-change='2021-03-31 10:01:33 +02:00',exec=13545ms

Daemon Status:
  corosync: active/enabled
  pacemaker: active/enabled
  pcsd: active/enabled
iba@iba-master2:/$ 

这是我的约束列表，（DRBD > 文件系统 > 虚拟 IP > Apache > MariaDB）

iba@iba-master2:/$ sudo pcs constraint list --full
Location Constraints:
Ordering Constraints:
  promote DrbdData-clone then start DrbdFS (kind:Mandatory) (id:order-DrbdData-clone-DrbdFS-mandatory)
  start DrbdFS then start virtual_ip (kind:Mandatory) (id:order-DrbdFS-virtual_ip-mandatory)
  start virtual_ip then start WebServer (kind:Mandatory) (id:order-virtual_ip-WebServer-mandatory)
  start WebServer then start Maria (kind:Mandatory) (id:order-WebServer-Maria-mandatory)
Colocation Constraints:
  DrbdFS with DrbdData-clone (score:INFINITY) (with-rsc-role:Master) (id:colocation-DrbdFS-DrbdData-clone-INFINITY)
  virtual_ip with DrbdFS (score:INFINITY) (id:colocation-virtual_ip-DrbdFS-INFINITY)
  WebServer with virtual_ip (score:INFINITY) (id:colocation-WebServer-virtual_ip-INFINITY)
  Maria with WebServer (score:INFINITY) (with-rsc-role:Master) (id:colocation-Maria-WebServer-INFINITY)
Ticket Constraints:
iba@iba-master2:/$ 

有什么想法吗？非常感谢。

解决方法

好的，我解决了，改变了起搏器中的资源。

sudo pcs cluster cib MariaDB_cfg

sudo pcs -f MariaDB_cfg resource create Maria ocf:heartbeat:mysql  \
binary="/usr/bin/mysqld_safe"   config="/etc/mysql/my.cnf" \
  datadir="/mnt/datosDRBD/mariaDB"   pid="/run/mysqld/mysqld.pid" \
  socket="/run/mysqld/mysqld.sock"  \
 additional_parameters="--bind-address=0.0.0.0"   op start timeout=60s \
  op stop timeout=60s   op monitor interval=20s timeout=30s \
on-fail=standby

sudo pcs -f MariaDB_cfg constraint colocation add Maria with WebServer INFINITY with-rsc-role=Master
sudo pcs -f MariaDB_cfg constraint order WebServer then Maria
sudo pcs cluster cib-push MariaDB_cfg

现在启动服务，我必须检查如何不在从节点启动，而是一步一步。