Open Stack

Interesting, the HA guide [2] states that memcached should be  
configured with the list of hosts:

> Access to Memcached is not handled by HAProxy because replicated  
> access is currently in an experimental state.
> Instead, OpenStack services must be supplied with the full list of  
> hosts running Memcached.

On the other hand, it would be only one of many incorrect statements  
in that guide since I've dealt with it, so maybe this is just outdated  
information (although the page has been modified on July 25th). Which  
OpenStack version are you deploying?

Regards,
Eugen

[2] https://docs.openstack.org/ha-guide/controller-ha-memcached.html

Zitat von "gao.song" <gaosong_1250 at 163.com>:

> Further report!
> We finally figure it out.
> It because of the original memcache_server configuration which lead  
> to load key from the poweroff controller
> configuration example:
> [cache]
> backend = oslo_cache.memcache_pool
> enabled = True
> memcache_servers = controller1:11211,controller2:11211,controller3:11211
> After change the server set to contoller_vip:11211，problem solved.
>
>
>
>
>
>
> At 2018-07-24 02:35:09, "Ivan Kolodyazhny" <e0ne at e0ne.info> wrote:
>
> Hi,
>
>
> It could be a common issue between horizon and keystone.
>
>
> As a temporary workaround for this, you can apply this [1] patch to  
> redirect admin user to the different page.
>
>
> [1] https://review.openstack.org/#/c/577090/
>
>
> Regards,
> Ivan Kolodyazhny,
> http://blog.e0ne.info/
>
>
> On Thu, Jul 19, 2018 at 11:47 AM, Eugen Block <eblock at nde.ag> wrote:
> Hi,
>
> we also had to deal with slow dashboard, in our case it was a  
> misconfiguration of memcached [0], [1].
>
> Check with your configuration and make sure you use oslo.cache.
>
> Hope this helps!
>
> [0] https://bugs.launchpad.net/keystone/+bug/1587777
> [1]  
> https://ask.openstack.org/en/question/102611/how-to-configure-memcache-in-openstack-ha/
>
>
> Zitat von 高松 <gaosong1 at syswin.com>:
>
>
> After kill one node of a cluster which consist of three nodes,
> I found that Horizon based on keystone with provider set to fernet  
> respondes very slowly.
> Admin login will cost at least 20 senconds.
> And cli verbose command return show making authentication is stuck  
> about 5 senconds.
> Any help will be appreciated.
>
>
>
>
>
> _______________________________________________
> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
> Post to     : openstack at lists.openstack.org
> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack