[Pacemaker] wrong device in stonith_admin -l

[David Vossel]

----- Original Message -----
> From: laurent+pacemaker at u-picardie.fr
> To: pacemaker at oss.clusterlabs.org
> Sent: Tuesday, December 11, 2012 6:51:20 PM
> Subject: [Pacemaker] wrong device in stonith_admin -l
> 
> 
> Hi,
> 
> I've just observed something weird.
> A node is running a stonith resource for which gethosts gives an
> empty
> node list. The result of stonith_admin -l does include it in the
> device list !
> 
> result of "stonith_admin -l elasticsearch-05" run from
> elasticsearch-06 :
>  stonith-xen-peatbull
>  stonith-xen-eddu
> 2 devices found
> 
> stonith-xen-peatbull is a correct fencing device
> stonith-xen-eddu is a fencing device with an empty hostlist
> 
> running "my-xen0 gethosts" with the stonith-xen-eddu params by hand
> doesn't return any host, and it does exit with 0 (is that correct to
> return 0 with an empty host list ?)
>
> 
> logs :
> Dec 12 01:09:10 elasticsearch-06 stonith-ng[18181]:   notice:
> stonith_device_register: Added 'stonith-cluster-xen' to the device
> list (6 active devices)
> Dec 12 01:09:10 elasticsearch-06 attrd[18183]:   notice:
> attrd_trigger_update: Sending flush op to all hosts for:
> probe_complete (true)
> Dec 12 01:09:10 elasticsearch-06 attrd[18183]:   notice:
> attrd_perform_update: Sent update 5: probe_complete=true
> Dec 12 01:09:11 elasticsearch-06 stonith-ng[18181]:   notice:
> stonith_device_register: Added 'stonith-xen-eddu' to the device list
> (6 active devices)
> Dec 12 01:09:11 elasticsearch-06 stonith-ng[18181]:   notice:
> stonith_device_register: Added 'stonith-xen-peatbull' to the device
> list (6 active devices)
> Dec 12 01:09:12 elasticsearch-06 stonith: [18434]: info:
> external/my-xen0-ha device OK.
> Dec 12 01:09:12 elasticsearch-06 crmd[18185]:   notice:
> process_lrm_event: LRM operation stonith-cluster-xen_start_0
> (call=61,rc=0, cib-update=27, confirmed=true) ok
> Dec 12 01:09:14 elasticsearch-06 stonith: [18465]: info:
> external_run_cmd: '/usr/lib/stonith/plugins/external/my-xen0 status'
> output: elasticsearch-05
> Dec 12 01:09:14 elasticsearch-06 stonith: [18465]: info:
> external_run_cmd: '/usr/lib/stonith/plugins/external/my-xen0 status'
> output: elasticsearch-06
> Dec 12 01:09:15 elasticsearch-06 stonith: [18465]: info:
> external/my-xen0 device OK.
> Dec 12 01:09:15 elasticsearch-06 crmd[18185]:   notice:
> process_lrm_event: LRM operation stonith-xen-peatbull_start_0
> (call=68, rc=0, cib-update=28, confirmed=true) ok
> Dec 12 01:09:15 elasticsearch-06 stonith: [18458]: info:
> external/my-xen0 device OK.
> Dec 12 01:09:15 elasticsearch-06 crmd[18185]:   notice:
> process_lrm_event: LRM operation stonith-xen-eddu_start_0 (call=66,
> rc=0, cib-update=29, confirmed=true) ok
> Dec 12 01:12:34 elasticsearch-06 stonith-ng[18181]:   notice:
> dynamic_list_search_cb: Disabling port list queries for
> stonith-xen-kornog (1): (null)
> Dec 12 01:12:34 elasticsearch-06 stonith-ng[18181]:   notice:
> dynamic_list_search_cb: Disabling port list queries for
> stonith-xen-nikka (1): (null)
> Dec 12 01:12:34 elasticsearch-06 stonith-ng[18181]:   notice:
> dynamic_list_search_cb: Disabling port list queries for
> stonith-xen-yoichi (1): (null)
> Dec 12 01:12:34 elasticsearch-06 stonith: [19301]: CRIT:
> external_hostlist: 'my-xen0 gethosts' returned an empty hostlist
> Dec 12 01:12:34 elasticsearch-06 stonith: [19301]: ERROR: Could not
> list hosts for external/my-xen0.
> Dec 12 01:12:37 elasticsearch-06 stonith: [19332]: CRIT:
> external_hostlist: 'my-xen0 gethosts' returned an empty hostlist
> Dec 12 01:12:37 elasticsearch-06 stonith: [19332]: ERROR: Could not
> list hosts for external/my-xen0.
> Dec 12 01:12:37 elasticsearch-06 stonith-ng[18181]:   notice:
> dynamic_list_search_cb: Disabling port list queries for
> stonith-xen-eddu (1): failed:  255

We discover what hosts a agent can fence by running this command internally in stonith.

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