MySQL DRBD 资源无法启动 PaceMaker + Corosync

MySQL DRBD 资源无法启动 PaceMaker + Corosync

因此,我在配置集群时已经运行了所有服务,但重新启动后我得到以下信息:

Full list of resources:

 virtual_ip     (ocf::heartbeat:IPaddr2):       Started node1
 webserver      (ocf::heartbeat:apache):        Stopped
 Master/Slave Set: WebDataClone [WebData]
     Masters: [ node2 ]
     Slaves: [ node1 ]
 WebFS  (ocf::heartbeat:Filesystem):    Started node2
 sqlfs  (ocf::heartbeat:Filesystem):    Stopped
 Master/Slave Set: SQLDataClone [SQLData]
     Masters: [ node1 ]
     Slaves: [ node2 ]

失败的操作:

    sqlfs_start_0 on node1 'unknown error' (1): call=26, status=complete, last-rc-change='Sat Jun  4 00:57:27 2016', queued=0ms, exec=32ms
    sqlfs_start_0 on node2 'unknown error' (1): call=34, status=complete, last-    rc-change='Sat Jun  4 00:57:27 2016', queued=0ms, exec=59ms

这是我用于 SQL 配置的内容:

 resource sqldata {
 protocol C;
 disk   /dev/sdb2;
 device /dev/drbd1;

 startup {
wfc-timeout 30;
outdated-wfc-timeout 20;
degr-wfc-timeout 30;
  }

 net {
cram-hmac-alg sha1;
shared-secret sync_disk;
  }

 syncer {
rate 10M;
al-extents 257;
on-no-data-accessible io-error;
verify-alg sha1;
  }

 on node1.freesoftwareservers.com {
   address  192.168.1.218:7788;
   flexible-meta-disk internal; 
  }

 on node2.freesoftwareservers.com {
   address  192.168.1.221:7788;
   meta-disk internal;
  }

 }

启动 DRBD 并同步:

drbdadm -- --overwrite-data-of-peer primary sqldata
drbdadm primary --force sqldata
watch cat /proc/drbd

修改后的 my.cnf 在两台服务器上均发生更改:

service mysqld stop
sudo nano /etc/my.cnf
Change in /etc/my.cnf :

#bind-address = 127.0.0.1
#Make Virtual_IP
bind-address = 192.168.1.215
#datadir=/var/lib/mysql
#Where DRBD will Mount
datadir=/var/lib/mysql_drbd
Mount and Populate with Data :

安装并填充 drbd1 :

/sbin/mkfs.ext4 /dev/drbd1
mkdir /mnt/drbd1
mount /dev/drbd1 /mnt/drbd1 
mv /var/lib/mysql_drbd/* /mnt/drbd1/
chcon -R --reference=/var/lib/mysql /mnt/drbd1
umount /dev/drbd1

这是似乎失败的配置:

pcs cluster start --all
pcs cluster cib sqlfs_cfg
pcs -f sqlfs_cfg resource create sqlfs ocf:heartbeat:Filesystem device="/dev/drbd1" directory="/var/lib/mysql_drbd" fstype="ext4"
pcs -f sqlfs_cfg constraint colocation add sqlfs with SQLDataClone INFINITY with-rsc-role=Master
pcs -f sqlfs_cfg constraint order promote SQLDataClone then start sqlfs
pcs -f sqlfs_cfg constraint colocation add webserver with sqlfs INFINITY
pcs -f sqlfs_cfg constraint order sqlfs then webserver
pcs -f sqlfs_cfg constraint
pcs -f sqlfs_cfg resource show
pcs cluster cib-push sqlfs_cfg

sqlfs_drbd_cfg :

pcs cluster start --all
pcs cluster cib sqlfs_drbd_cfg
pcs -f sqlfs_drbd_cfg resource create SQLData ocf:linbit:drbd drbd_resource=sqldata op monitor interval=60s
pcs -f sqlfs_drbd_cfg resource master SQLDataClone SQLData master-max=1 master-    node-max=1 clone-max=2 clone-node-max=1 notify=true
pcs -f sqlfs_drbd_cfg resource show
pcs cluster cib-push sqlfs_drbd_cfg

在节点 1(AKA Primary)上设置首选位置:

pcs constraint location sqlfs prefers node1=50

关于如何解决这个问题有什么想法吗?同样,它在初始配置期间工作,并在重新启动后崩溃......

谢谢!

答案1

我没有在 Pacemaker 中看到 mysql 的定义;您是在集群启动后手动启动还是在启动时启动?

如果它在启动时启动,它可能会在 Pacemaker 之前启动,因此会锁定挂载点(数据应该在的位置),这将导致文件系统资源无法在那里挂载文件系统。

有点盲目,但如果是这种情况,您应该禁用 mysql 在启动时启动,然后在集群中定义它。

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