[Pacemaker] Ressources not moving to node with better connectivity - pingd

[Michael Schwartzkopff]

Am Montag, 9. Dezember 2013, 10:28:32 schrieb Bauer, Stefan:
> Pardon!
> 
> node debian6-n1
> node debian6-n2
> primitive p_alias0 ocf:heartbeat:IPaddr2 \
>         params ip="4.5.6.7" cidr_netmask="24" nic="eth0" \
>         op start interval="0" timeout="20" \
>         op stop interval="0" timeout="30" \
>         op monitor interval="20"
> primitive p_conntrackd lsb:conntrackd-sync \
>         op monitor interval="30s"
> primitive p_eth0 ocf:heartbeat:IPaddr2 \
>         params ip="10.0.2.250" cidr_netmask="24" nic="eth0" \
>         op start interval="0" timeout="20" \
>         op stop interval="0" timeout="30" \
>         op monitor interval="20"
> primitive p_openvpn lsb:openvpn \
>         op start interval="0" timeout="20" \
>         op stop interval="0" timeout="30" \
>         op monitor interval="20"
> primitive p_ping ocf:pacemaker:ping \
>         params host_list="7.4.5.6 127.0.0.1" multiplier="150" dampen="5s" \
>         op start interval="0" timeout="60" \
>         op stop interval="0" timeout="20" \
>         op monitor interval="20" timeout="60"
> group cluster1 p_eth0 p_alias0 p_openvpn p_conntrackd \
>         meta target-role="Started"
> clone pingclone p_ping \
>         meta interleave="true"
> location groupwithping cluster1 \
>         rule $id="groupwithping-rule" pingd: defined pingd
> colocation cluster inf: p_eth0 p_alias0 p_openvpn p_conntrackd
> property $id="cib-bootstrap-options" \
>         dc-version="1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff" \
>         cluster-infrastructure="openais" \
>         expected-quorum-votes="2" \
>         no-quorum-policy="ignore" \
>         stonith-enabled="false"
> rsc_defaults $id="rsc-options" \
>         resource-stickiness="100"
> 
> Stefan
> 
> Von: emmanuel segura [mailto:emi2fast at gmail.com]
> Gesendet: Montag, 9. Dezember 2013 11:22
> An: The Pacemaker cluster resource manager
> Betreff: Re: [Pacemaker] Ressources not moving to node with better
> connectivity - pingd
> 
> where is your config?
> 
> 2013/12/9 Bauer, Stefan (IZLBW Extern)
> <Stefan.Bauer at iz.bwl.de<mailto:Stefan.Bauer at iz.bwl.de>> Hi List,
> 
> even though following well known documentations about a ping clone resource
> my resources are not moving to the node with the better connectivity:
> 
> 2 Nodes configured, 2 expected votes
> 6 Resources configured.
> ============
> 
> Online: [ debian6-n2 debian6-n1 ]
> 
> Resource Group: cluster1
>      p_eth0     (ocf::heartbeat:IPaddr2):       Started debian6-n2
>      p_alias0   (ocf::heartbeat:IPaddr2):       Started debian6-n2
>      p_openvpn  (lsb:openvpn):  Started debian6-n2
>      p_conntrackd       (lsb:conntrackd-sync):  Started debian6-n2
> Clone Set: pingclone [p_ping]
>      Started: [ debian6-n1 debian6-n2 ]
> 
> Node Attributes:
> * Node debian6-n2:
>     + pingd                             : 150           : Connectivity is
> degraded (Expected=300) * Node debian6-n1:
>     + pingd                             : 300
> 
> I would expect the resources to move to N1.
> Resource-stickiness is set to 100.
> 2 Pinghosts are configured - n2 can right now only reach a single pinghost.
> 
> Resource              Score     Node       Stickiness #Fail   
> Migration-Threshold p_alias0              700       debian6-n2 100        0
> p_alias0              -INFINITY debian6-n1 100        0
> p_conntrackd          100       debian6-n2 100        0
> p_conntrackd          -INFINITY debian6-n1 100        0
> p_eth0                1650      debian6-n2 100        0
> p_eth0                300       debian6-n1 100        0
> p_openvpn             300       debian6-n2 100        0
> p_openvpn             -INFINITY debian6-n1 100        0
> p_ping:0              100       debian6-n1 100        0
> p_ping:0              -INFINITY debian6-n2 100        0
> p_ping:1              0         debian6-n1 100        0
> p_ping:1              100       debian6-n2 100        0
> 
> Anybody see what the problem could be?
> To be honest I did not fully understood the deeper function of how the
> scores are calculated.
> 
> Thank you.
> 
> Stefan

You resource_stickiness is too high in respect to the pingd points. You 
resource "earns" 700 points staying there where it is and only 300 points for 
moving. Reduce your resource_stickiness to a reasonable amount.

BTW: I hope 127.0.0.1 in the config of the ping resource is only for 
obfuscation on the list and no real configuration.


-- 
Mit freundlichen Grüßen,

Michael Schwartzkopff

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