[Openstack-operators] [openstack-dev] Which is the correct way to set ha queues in RabbitMQ

Alvise Dorigo alvise.dorigo at pd.infn.it
Tue Jul 28 07:45:16 UTC 2015


thank you very much Vishal.

     A.

On 28/07/2015 09:41, vishal yadav wrote:
> >> "ha_all" vs. "HA".
> >> which one is correct ?
>
> That's the policy name, you can name anything...
>
> Excerpt from 'man rabbitmqctl'
> ...
> set_policy [-p vhostpath] {name} {pattern} {definition} [priority]
>            Sets a policy.
>
>            name
>                The name of the policy.
>
>            pattern
>                The regular expression, which when matches on a given 
> resources causes the policy to apply.
>
>            definition
>                The definition of the policy, as a JSON term. In most 
> shells you are very likely to need to quote this.
>
>            priority
>                The priority of the policy as an integer, defaulting to 
> 0. Higher numbers indicate greater precedence.
> ...
>
> Regards,
> Vishal
>
>
> On Tue, Jul 28, 2015 at 12:47 PM, Alvise Dorigo 
> <alvise.dorigo at pd.infn.it <mailto:alvise.dorigo at pd.infn.it>> wrote:
>
>     Hi,
>     I read these two documents:
>
>     http://docs.openstack.org/high-availability-guide/content/_configure_rabbitmq.html
>
>     https://www.rdoproject.org/RabbitMQ
>
>     To configure the queues in HA mode, the two docs suggests two
>     slightly different commands;
>
>     The first one says:
>
>     rabbitmqctl set_policy ha-all '^(?!amq\.).*' '{"ha-mode": "all"}'
>
>
>     while the second one says:
>
>     rabbitmqctl set_policy HA '^(?!amq\.).*' '{"ha-mode": "all"}'
>
>
>     "ha_all" vs. "HA".
>
>     which one is correct ?
>
>     thanks,
>
>         Alvise
>
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