[Pacemaker] Breaking dependency loop && stonith

[Andrey Groshev]

10.01.2014, 02:36, "Andrew Beekhof" <andrew at beekhof.net>:
> On 9 Jan 2014, at 5:05 pm, Andrey Groshev <greenx at yandex.ru> wrote:
>
>>  08.01.2014, 06:15, "Andrew Beekhof" <andrew at beekhof.net>:
>>>  On 27 Nov 2013, at 12:26 am, Andrey Groshev <greenx at yandex.ru> wrote:
>>>>   Hi, ALL.
>>>>
>>>>   I want to clarify two more questions.
>>>>   After stonith reboot - this node hangs with status "pending".
>>>>   The logs found string .....
>>>>
>>>>      info: rsc_merge_weights:    pgsql:1: Breaking dependency loop at msPostgresql
>>>>      info: rsc_merge_weights:    pgsql:2: Breaking dependency loop at msPostgresql
>>>>
>>>>   This means that breaking search the depends, because they are no more.
>>>>   Or interrupted by an infinite loop for search the dependency?
>>>  The second one, but it has nothing to do with a node being in the "pending" state.
>>>  Where did you see this?
>>  Ok, I've already understood this the problem.
>>  I have "location" for right promote|demote resource.
>>  And too same logic trough "collocation"/"order".
>>  As I thought, they do the same thing
>
> No, collocation and ordering are orthogonal concepts and do not at all do the same thing.
> See the docs.

Yes, I said wrong. Was meant the logic of cluster behavior.

>
>>  and collisions should not happen.
>>  At least on the old cluster it works :)
>>  Now I have removed all unnecessary.
>>>>   And two.
>>>>   Do I need to clone the stonith resource now (In PCMK 1.1.11)?
>>>  No.
>>>>   On the one hand, I see this resource on all nodes through command.
>>>>   # cibadmin -Q|grep stonith
>>>>          <nvpair name="stonith-enabled" value="true" id="cib-bootstrap-options-stonith-enabled"/>
>>>>        <primitive id="st1" class="stonith" type="external/sshbykey">
>>>>            <lrm_resource id="st1" type="external/sshbykey" class="stonith">
>>>>            <lrm_resource id="st1" type="external/sshbykey" class="stonith">
>>>>            <lrm_resource id="st1" type="external/sshbykey" class="stonith">
>>>>   (without pending node)
>>>  Like all resources, we check all nodes at startup to see if it is already active.
>>>>   On the other hand, another command I see only one instance on a particular node.
>>>>   # crm_verify -LVVVV
>>>>      info: main:         =#=#=#=#= Getting XML =#=#=#=#=
>>>>      info: main:         Reading XML from: live cluster
>>>>      info: validate_with_relaxng:        Creating RNG parser context
>>>>      info: determine_online_status_fencing:      Node dev-cluster2-node4 is active
>>>>      info: determine_online_status:      Node dev-cluster2-node4 is online
>>>>      info: determine_online_status_fencing:      - Node dev-cluster2-node1 is not ready to run resources
>>>>      info: determine_online_status_fencing:      Node dev-cluster2-node2 is active
>>>>      info: determine_online_status:      Node dev-cluster2-node2 is online
>>>>      info: determine_online_status_fencing:      Node dev-cluster2-node3 is active
>>>>      info: determine_online_status:      Node dev-cluster2-node3 is online
>>>>      info: determine_op_status:  Operation monitor found resource pingCheck:0 active on dev-cluster2-node4
>>>>      info: native_print:         VirtualIP       (ocf::heartbeat:IPaddr2):       Started dev-cluster2-node4
>>>>      info: clone_print:   Master/Slave Set: msPostgresql [pgsql]
>>>>      info: short_print:       Masters: [ dev-cluster2-node4 ]
>>>>      info: short_print:       Slaves: [ dev-cluster2-node2 dev-cluster2-node3 ]
>>>>      info: short_print:       Stopped: [ dev-cluster2-node1 ]
>>>>      info: clone_print:   Clone Set: clnPingCheck [pingCheck]
>>>>      info: short_print:       Started: [ dev-cluster2-node2 dev-cluster2-node3 dev-cluster2-node4 ]
>>>>      info: short_print:       Stopped: [ dev-cluster2-node1 ]
>>>>      info: native_print:         st1     (stonith:external/sshbykey):    Started dev-cluster2-node4
>>>>      info: native_color:         Resource pingCheck:3 cannot run anywhere
>>>>      info: native_color:         Resource pgsql:3 cannot run anywhere
>>>>      info: rsc_merge_weights:    pgsql:1: Breaking dependency loop at msPostgresql
>>>>      info: rsc_merge_weights:    pgsql:2: Breaking dependency loop at msPostgresql
>>>>      info: master_color:         Promoting pgsql:0 (Master dev-cluster2-node4)
>>>>      info: master_color:         msPostgresql: Promoted 1 instances of a possible 1 to master
>>>>      info: LogActions:   Leave   VirtualIP       (Started dev-cluster2-node4)
>>>>      info: LogActions:   Leave   pgsql:0 (Master dev-cluster2-node4)
>>>>      info: LogActions:   Leave   pgsql:1 (Slave dev-cluster2-node2)
>>>>      info: LogActions:   Leave   pgsql:2 (Slave dev-cluster2-node3)
>>>>      info: LogActions:   Leave   pgsql:3 (Stopped)
>>>>      info: LogActions:   Leave   pingCheck:0     (Started dev-cluster2-node4)
>>>>      info: LogActions:   Leave   pingCheck:1     (Started dev-cluster2-node2)
>>>>      info: LogActions:   Leave   pingCheck:2     (Started dev-cluster2-node3)
>>>>      info: LogActions:   Leave   pingCheck:3     (Stopped)
>>>>      info: LogActions:   Leave   st1     (Started dev-cluster2-node4)
>>>>
>>>>   However, if I do a "clone" - it turns out the same garbage.
>>>>
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>>>  ,
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>
> ,
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