[ClusterLabs Developers] [ClusterLabs] [Linux-ha-dev] Announcing crmsh release 2.1.7

[Kostiantyn Ponomarenko]

Hi,

>> If "scripts: no-quorum-policy=ignore" is becoming depreciated
Are there any plans to get rid of this option?
Am I missing something?

PS: this option is very useful (vital) to me. And "two_node" option won't
replace it.

Thank you,
Kostia

On Thu, Sep 1, 2016 at 11:31 AM, Darren Thompson <darrent at akurit.com.au>
wrote:

> Thank you.
>
> Comprehensively  answered.
>
> On 1 Sep 2016 6:27 PM, "Kristoffer Grönlund" <kgronlund at suse.com> wrote:
>
>> Darren Thompson <darrent at akurit.com.au> writes:
>>
>> > Just a quick question:
>> >
>> > If "scripts: no-quorum-policy=ignore" is becoming depreciated, how are
>> we
>> > to manage two node (e.g. test) clusters that require this work around
>> since
>> > quorum state on a single node is an odd state.
>> >
>>
>> Hi Darren,
>>
>> There are better mechanisms in corosync and Pacemaker for handling two
>> node clusters now while still maintaining quorum.
>>
>> In corosync 2, we have the two_node: 1 setting for votequorum, which
>> ensures that a two node cluster doesn't suffer split brain (fencing is
>> required for this to work properly).
>>
>> There is an explanation for how this works here:
>>
>> http://people.redhat.com/ccaulfie/docs/Votequorum_Intro.pdf
>>
>> Somewhat related, there used to be the start-delay meta parameter which
>> could be set for example for sbd stonith resources, to make a
>> double-fencing scenario less likely. This has now been replaced by the
>> pcmk_delay_max parameter. For an example of how to use this, see this
>> pull request for sbd:
>>
>> https://github.com/ClusterLabs/sbd/pull/15/commits/ca2fba836
>> eab169f0c8cacf7f3757c0485bcfef8
>>
>> Cheers,
>> Kristoffer
>>
>> --
>> // Kristoffer Grönlund
>> // kgronlund at suse.com
>>
>
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