[Pacemaker] What is the reason which the node in which failure has not occurred carries out "lost"?

[Vladislav Bogdanov]

18.02.2014 03:49, Andrew Beekhof wrote:
> 
> On 31 Jan 2014, at 6:20 pm, yusuke iida <yusk.iida at gmail.com> wrote:
> 
>> Hi, all
>>
>> I measure the performance of Pacemaker in the following combinations.
>> Pacemaker-1.1.11.rc1
>> libqb-0.16.0
>> corosync-2.3.2
>>
>> All nodes are KVM virtual machines.
>>
>>  stopped the node of vm01 compulsorily from the inside, after starting 14 nodes.
>> "virsh destroy vm01" was used for the stop.
>> Then, in addition to the compulsorily stopped node, other nodes are separated from a cluster.
>>
>> The log of "Retransmit List:" is then outputted in large quantities from corosync.
> 
> Probably best to poke the corosync guys about this.
> 
> However, <= .11 is known to cause significant CPU usage with that many nodes.
> I can easily imagine this staving corosync of resources and causing breakage.
> 
> I would _highly_ recommend retesting with the current git master of pacemaker.
> I merged the new cib code last week which is faster by _two_ orders of magnitude and uses significantly less CPU.

Andrew, you mean your cib-performance branch, am I correct?

Unfortunately it is not in .11 (sorry if I overlooked it there), and
even not in Clusterlabs/master yet and seems to be merged and then
reverted in beekhof/master...


> 
> I'd be interested to hear your feedback.
> 
>>
>> What is the reason which the node in which failure has not occurred carries out "lost"?
>>
>> Please advise, if there is a problem in a setup in something.
>>
>> I attached the report when the problem occurred.
>> https://drive.google.com/file/d/0BwMFJItoO-fVMkFWWWlQQldsSFU/edit?usp=sharing
>>
>> Regards,
>> Yusuke
>> -- 
>> ---------------------------------------- 
>> METRO SYSTEMS CO., LTD 
>>
>> Yusuke Iida 
>> Mail: yusk.iida at gmail.com
>> ---------------------------------------- 
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> 
> 
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