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[Openstack] [Horizon] Horizon responds very slowly


Ocata.
Document is rigjht,But our platform is deployed using kolla-ansible, So,we utilize haproxy to 
handle memcache access through virtual IP





At 2018-07-31 20:40:26, "Eugen Block" <eblock at nde.ag> wrote:
>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in that guide since I've dealt with it, so maybe this is just outdated  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:11211ï¼?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 é«?æ?¾ <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.
>>
>>
>>
>>
>>
>> _______________________________________________
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>> Post to     : openstack at lists.openstack.org
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>
>
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