[ClusterLabs] Question about fencing

[JCA]

Here is what I did:

# pcs stonith create disk_fencing fence_scsi pcmk_host_list="one two"
pcmk_monitor_action="metadata" pcmk_reboot_action="off"
devices="/dev/disk/by-id/ata-VBOX_HARDDISK_VBaaa429e4-514e8ecb" meta
provides="unfencing"

where ata-VBOX-... corresponds to the device where I have the partition
that is shared between both nodes in my cluster. The command completes
without any errors (that I can see) and after that I have

# pcs status
Cluster name: ClusterOne
Stack: corosync
Current DC: one (version 1.1.19-8.el7_6.4-c3c624ea3d) - partition with
quorum
Last updated: Wed Apr 17 14:35:25 2019
Last change: Wed Apr 17 14:11:14 2019 by root via cibadmin on one

2 nodes configured
5 resources configured

Online: [ one two ]

Full list of resources:

 MyCluster (ocf::myapp:myapp-script): Stopped
 Master/Slave Set: DrbdDataClone [DrbdData]
     Stopped: [ one two ]
 DrbdFS (ocf::heartbeat:Filesystem): Stopped
 disk_fencing  (stonith:fence_scsi): Stopped

Daemon Status:
  corosync: active/enabled
  pacemaker: active/enabled
  pcsd: active/enabled

Things stay that way indefinitely, until I set stonith-enabled to false -
at which point all the resources above get started immediately.

Obviously, I am missing something big here. But, what is it?


On Wed, Apr 17, 2019 at 2:59 PM Adam Budziński <budzinski.adam at gmail.com>
wrote:

> You did not configure any fencing device.
>
> śr., 17.04.2019, 22:51 użytkownik JCA <1.41421 at gmail.com> napisał:
>
>> I am trying to get fencing working, as described in the "Cluster from
>> Scratch" guide, and I am stymied at get-go :-(
>>
>> The document mentions a property named stonith-enabled. When I was trying
>> to get my first cluster going, I noticed that my resources would start only
>> when this property is set to false, by means of
>>
>>     # pcs property set stonith-enabled=false
>>
>> Otherwise, all the resources remain stopped.
>>
>> I created a fencing resource for the partition that I am sharing across
>> the the nodes, by means of DRBD. This works fine - but I still have the
>> same problem as above - i.e. when stonith-enabled is set to true, all the
>> resources get stopped, and remain in that state.
>>
>> I am very confused here. Can anybody point me in the right direction out
>> of this conundrum?
>>
>>
>>
>> _______________________________________________
>> Manage your subscription:
>> https://lists.clusterlabs.org/mailman/listinfo/users
>>
>> ClusterLabs home: https://www.clusterlabs.org/
>
> _______________________________________________
> Manage your subscription:
> https://lists.clusterlabs.org/mailman/listinfo/users
>
> ClusterLabs home: https://www.clusterlabs.org/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.clusterlabs.org/pipermail/users/attachments/20190417/a8a6ad56/attachment-0001.html>