[ClusterLabs] "No such device" with fence_pve agent

Stanislav Kopp staskopp at gmail.com
Wed Mar 23 09:01:25 UTC 2016 

Hi Ken,

thank you for clarification, adding  "pcmk_host_list=redis1" to
redis1's stonith resource options has solved the problem.

Best,
Stan

2016-03-22 15:24 GMT+01:00 Ken Gaillot <kgaillot at redhat.com>:
> On 03/22/2016 06:32 AM, Stanislav Kopp wrote:
>> Hi,
>>
>> I have problem with using "fence_pve" agent with pacemaker, the agent
>> works fine from command line, but if I simulate stonith action or use
>> "crm node fence <node>", it doesn't work:
>>
>>  Mar 22 10:38:06 [675] redis2 stonith-ng: debug:
>> xml_patch_version_check: Can apply patch 0.50.22 to 0.50.21
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug: stonith_command:
>> Processing st_query 0 from redis1 ( 0)
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug: stonith_query: Query
>> <stonith_command name="stonith_command" t="stonith-ng"
>> st_async_id="da507055-afc3-4b5c-bcc0-f887dd1736d3" st_op="st_query"
>> st_callid="2" st_callopt="0"
>> st_remote_op="da507055-afc3-4b5c-bcc0-f887dd1736d3" st_target="redis1"
>> st_device_action="reboot" st_origin="redis1"
>> st_clientid="95f8f271-e698-4a9b-91ae-950c55c230a5"
>> st_clientname="crmd.674" st_timeout="60" src="redis1"/>
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug: get_capable_devices:
>> Searching through 1 devices to see what is capable of action (reboot)
>> for target redis1
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug:
>> schedule_stonith_command: Scheduling list on stonith-redis1 for
>> stonith-ng (timeout=60s)
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug: stonith_command:
>> Processed st_query from redis1: OK (0)
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug: stonith_action_create:
>> Initiating action list for agent fence_pve (target=(null))
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug:
>> internal_stonith_action_execute: forking
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug:
>> internal_stonith_action_execute: sending args
>> Mar 22 10:38:06 [675] redis2 stonith-ng: debug:
>> stonith_device_execute: Operation list on stonith-redis1 now running
>> with pid=8707, timeout=60s
>> Mar 22 10:38:07 [675] redis2 stonith-ng: debug:
>> stonith_action_async_done: Child process 8707 performing action 'list'
>> exited with rc 0
>
> There is a fence parameter pcmk_host_check that specifies how pacemaker
> determines which fence devices can fence which nodes. The default is
> dynamic-list, which means to run the fence agent's list command to get
> the nodes. So that's what we're seeing above ...
>
>> Mar 22 10:38:07 [675] redis2 stonith-ng: info: dynamic_list_search_cb:
>> Refreshing port list for stonith-redis1
>> Mar 22 10:38:07 [675] redis2 stonith-ng: debug:
>> search_devices_record_result: Finished Search. 0 devices can perform
>> action (reboot) on node redis1
>
> ... however not all fence agents can figure out their targets
> dynamically. Above, we can see either that's the case, or the device
> really can't fence redis1.
>
>> Mar 22 10:38:07 [675] redis2 stonith-ng: debug:
>> stonith_query_capable_device_cb: Found 0 matching devices for 'redis1'
>> Mar 22 10:38:07 [675] redis2 stonith-ng: debug: stonith_command:
>> Processing st_notify reply 0 from redis1 ( 0)
>> Mar 22 10:38:07 [675] redis2 stonith-ng: debug:
>> process_remote_stonith_exec: Marking call to reboot for redis1 on
>> behalf of crmd.674 at da507055-afc3-4b5c-bcc0-f887dd1736d3.redis1: No
>> such device (-19)
>> Mar 22 10:38:07 [675] redis2 stonith-ng: notice: remote_op_done:
>> Operation reboot of redis1 by <no-one> for crmd.674 at redis1.da507055:
>> No such device
>> Mar 22 10:38:07 [675] redis2 stonith-ng: debug: stonith_command:
>> Processed st_notify reply from redis1: OK (0)
>> Mar 22 10:38:07 [679] redis2 crmd: notice: tengine_stonith_notify:
>> Peer redis1 was not terminated (reboot) by <anyone> for redis1: No
>> such device (ref=da507055-afc3-4b5c-bcc0-f887dd1736d3) by client
>> crmd.674
>> Connection to 192.168.122.137 closed by remote host.
>>
>> I already read similar thread ("fence_scsi no such device"), but
>> didn't find anything what can help me. I'm using pacemaker
>> 1.1.14-2~bpo8+1 with corosync 2.3.5-3~bpo8+1 on Debian jessie.
>>
>> some info:
>>
>> redis1:~# stonith_admin -L
>>  stonith-redis2
>> 1 devices found
>>
>> redis1:~# crm configure show
>> node 3232266889: redis2
>> node 3232266923: redis1
>> primitive ClusterIP IPaddr2 \
>>         params ip=192.168.122.10 nic=eth0 \
>>         op monitor interval=10s \
>>         meta is-managed=true
>> primitive stonith-redis1 stonith:fence_pve \
>>         params ipaddr=192.168.122.6 \
>>         params login="root at pam" passwd=secret port=100 \
>>         op start interval=0 timeout=60s \
>>         meta target-role=Started is-managed=true
>
> You can specify pcmk_host_list or pcmk_host_map to use a static target
> list for the device. For example pcmk_host_list=redis1 would say this
> fence device can target redis1 only. pcmk_host_map is the same but lets
> you specify a different name for the target when calling the device --
> for example, pcmk_host_map=redis1:1 would target redis1, but send just
> "1" to the device.
>
>> primitive stonith-redis2 stonith:fence_pve \
>>         params ipaddr=192.168.122.7 \
>>         params login="root at pam" passwd=secret port=101 \
>>         op start interval=0 timeout=60s \
>>         meta target-role=Started is-managed=true
>> location loc_stonith-redis1 stonith-redis1 -inf: redis1
>> location loc_stonith-redis2 stonith-redis2 -inf: redis2
>> property cib-bootstrap-options: \
>>         have-watchdog=false \
>>         dc-version=1.1.14-70404b0 \
>>         cluster-infrastructure=corosync \
>>         cluster-name=debian \
>>         stonith-enabled=true \
>>         no-quorum-policy=ignore \
>
> FYI with corosync 2, you can set "two_node: 1" in corosync.conf and let
> no-quorum-policy default in pacemaker.
>
>>         last-lrm-refresh=1458576579
>>
>>
>> Best,
>> Stan
>
>
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