[ClusterLabs] CentOS 8 & drbd 9 second slave is not started

[fatcharly at gmx.de]

Sorry Guys,

problem found, it was a colocation constrain of the drbd-devices.

best regards

fatcharly



> Gesendet: Montag, 18. Januar 2021 um 16:52 Uhr
> Von: fatcharly at gmx.de
> An: "clusterlabs" <users at clusterlabs.org>
> Betreff: [ClusterLabs] CentOS 8 & drbd 9 second slave is not started
>
> Hi,
>
> I'm trying to install a 2 node pacemaker/drbd cluster on a CentOS 8.3. I'm using this versions:
>
> kmod-drbd90-9.0.25-2.el8_3.elrepo.x86_64
> drbd90-utils-9.13.1-1.el8.elrepo.x86_64
>
> pacemaker-cluster-libs-2.0.4-6.el8.x86_64
> pacemaker-cli-2.0.4-6.el8.x86_64
> pacemaker-schemas-2.0.4-6.el8.noarch
> pacemaker-2.0.4-6.el8.x86_64
> pacemaker-libs-2.0.4-6.el8.x86_64
>
> clusternode-names are lisbon and susanne
>
> There are two drbd-resources configured which are paired with filesystem-resources. Both are working in simple master/slave configuration.
> When I start up the cluster one resource is promoted to a master and a slave, the other is just getting on one the master started, but the slave is not starting up.
>
> Status of the cluster:
> Cluster Summary:
>   * Stack: corosync
>   * Current DC: lisbon (version 2.0.4-6.el8-2deceaa3ae) - partition with quorum
>   * Last updated: Mon Jan 18 16:30:21 2021
>   * Last change:  Mon Jan 18 16:30:17 2021 by root via cibadmin on lisbon
>   * 2 nodes configured
>   * 7 resource instances configured
>
> Node List:
>   * Online: [ lisbon susanne ]
>
> Active Resources:
>   * HA-IP_1     (ocf::heartbeat:IPaddr2):        Started susanne
>   * Clone Set: drbd_database-clone [drbd_database] (promotable):
>     * Masters: [ susanne ]
>     * Slaves: [ lisbon ]
>   * fs_database (ocf::heartbeat:Filesystem):     Started susanne
>   * Clone Set: drbd_logsfiles-clone [drbd_logsfiles] (promotable):
>     * Masters: [ susanne ]
>   * fs_logfiles (ocf::heartbeat:Filesystem):     Started susanne
>
> drbdadm status
>
> [root at susanne ~]# drbdadm status
> drbd1 role:Primary
>   disk:UpToDate
>   lisbon role:Secondary
>     peer-disk:UpToDate
>
> drbd2 role:Primary
>   disk:UpToDate
>   lisbon connection:Connecting
>
>  [root at lisbon ~]# drbdadm status
> drbd1 role:Secondary
>   disk:UpToDate
>   susanne role:Primary
>     peer-disk:UpToDate
>
>
> cluster-config:
> Cluster Name: mysql_cluster
> Corosync Nodes:
>  susanne lisbon
> Pacemaker Nodes:
>  lisbon susanne
>
> Resources:
>  Resource: HA-IP_1 (class=ocf provider=heartbeat type=IPaddr2)
>   Attributes: cidr_netmask=24 ip=192.168.18.150
>   Operations: monitor interval=15s (HA-IP_1-monitor-interval-15s)
>               start interval=0s timeout=20s (HA-IP_1-start-interval-0s)
>               stop interval=0s timeout=20s (HA-IP_1-stop-interval-0s)
>  Clone: drbd_database-clone
>   Meta Attrs: clone-max=2 clone-node-max=1 notify=true promotable=true promoted-max=1 promoted-node-max=1
>   Resource: drbd_database (class=ocf provider=linbit type=drbd)
>    Attributes: drbd_resource=drbd1
>    Operations: demote interval=0s timeout=90 (drbd_database-demote-interval-0s)
>                monitor interval=20 role=Slave timeout=20 (drbd_database-monitor-interval-20)
>                monitor interval=10 role=Master timeout=20 (drbd_database-monitor-interval-10)
>                notify interval=0s timeout=90 (drbd_database-notify-interval-0s)
>                promote interval=0s timeout=90 (drbd_database-promote-interval-0s)
>                reload interval=0s timeout=30 (drbd_database-reload-interval-0s)
>                start interval=0s timeout=240 (drbd_database-start-interval-0s)
>                stop interval=0s timeout=100 (drbd_database-stop-interval-0s)
>  Resource: fs_database (class=ocf provider=heartbeat type=Filesystem)
>   Attributes: device=/dev/drbd1 directory=/mnt/clusterfs1 fstype=ext4
>   Operations: monitor interval=20s timeout=40s (fs_database-monitor-interval-20s)
>               start interval=0s timeout=60s (fs_database-start-interval-0s)
>               stop interval=0s timeout=60s (fs_database-stop-interval-0s)
>  Clone: drbd_logsfiles-clone
>   Meta Attrs: clone-max=2 clone-node-max=1 notify=true promotable=true promoted-max=1 promoted-node-max=1
>   Resource: drbd_logsfiles (class=ocf provider=linbit type=drbd)
>    Attributes: drbd_resource=drbd2
>    Operations: demote interval=0s timeout=90 (drbd_logsfiles-demote-interval-0s)
>                monitor interval=20 role=Slave timeout=20 (drbd_logsfiles-monitor-interval-20)
>                monitor interval=10 role=Master timeout=20 (drbd_logsfiles-monitor-interval-10)
>                notify interval=0s timeout=90 (drbd_logsfiles-notify-interval-0s)
>                promote interval=0s timeout=90 (drbd_logsfiles-promote-interval-0s)
>                reload interval=0s timeout=30 (drbd_logsfiles-reload-interval-0s)
>                start interval=0s timeout=240 (drbd_logsfiles-start-interval-0s)
>                stop interval=0s timeout=100 (drbd_logsfiles-stop-interval-0s)
>  Resource: fs_logfiles (class=ocf provider=heartbeat type=Filesystem)
>   Attributes: device=/dev/drbd2 directory=/mnt/clusterfs2 fstype=ext4
>   Operations: monitor interval=20s timeout=40s (fs_logfiles-monitor-interval-20s)
>               start interval=0s timeout=60s (fs_logfiles-start-interval-0s)
>               stop interval=0s timeout=60s (fs_logfiles-stop-interval-0s)
>
> Stonith Devices:
> Fencing Levels:
>
> Location Constraints:
> Ordering Constraints:
>   start drbd_database-clone then start fs_database (kind:Mandatory) (id:order-drbd_database-clone-fs_database-mandatory)
>   start drbd_logsfiles-clone then start fs_logfiles (kind:Mandatory) (id:order-drbd_logsfiles-clone-fs_logfiles-mandatory)
> Colocation Constraints:
>   fs_database with drbd_database-clone (score:INFINITY) (with-rsc-role:Master) (id:colocation-fs_database-drbd_database-clone-INFINITY)
>   fs_logfiles with drbd_logsfiles-clone (score:INFINITY) (with-rsc-role:Master) (id:colocation-fs_logfiles-drbd_logsfiles-clone-INFINITY)
>   drbd_logsfiles-clone with drbd_database-clone (score:INFINITY) (with-rsc-role:Master) (id:colocation-drbd_logsfiles-clone-drbd_database-clone-INFINITY)
> Ticket Constraints:
>
> Alerts:
>  No alerts defined
>
> Resources Defaults:
>   No defaults set
> Operations Defaults:
>   No defaults set
>
> Cluster Properties:
>  cluster-infrastructure: corosync
>  cluster-name: mysql_cluster
>  dc-version: 2.0.4-6.el8-2deceaa3ae
>  have-watchdog: false
>  last-lrm-refresh: 1610382881
>  stonith-enabled: false
>
> Tags:
>  No tags defined
>
> Quorum:
>   Options:
>
>
> Any suggestions are welcome
>
> stay safe and healty
>
> fatcharly
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