Friday, 2026-02-13

gokhanhello noonedeadpunk , when one of the infra node is down, my horizon access is gone if default endpoint map is skyline. /horizon returns service unavailable. what is your thoughts about this issue? I am using both horizon and skyline. Default is skyline. 08:32
noonedeadpunk[e]Hm, that should not really be related to  maps/skyline tbh08:33
noonedeadpunk[e]I wonder if the issue can be memcached which is used for the session engine08:34
noonedeadpunk[e]What if you try:08:35
noonedeadpunk[e]horizon_session_engine: django.contrib.sessions.backends.signed_cookies08:35
gokhannoonedeadpunk[e], yes because this check  curl -v http://10.x.x.x/horizon/auth/login/ returns 500 internal server error 08:50
gokhansession engine is # Set the session engine configuration:08:51
gokhanSESSION_ENGINE = 'django.contrib.sessions.backends.cache'08:51
jrosserdo we configure all the memcached servers into all the horizon instances?09:21
jrosseror shouldit be that horizon is configured only to use the one on the same node.....09:21
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noonedeadpunk[e]gokhan there is known issue with using memcached for sessions lately. So I wonder if that is related and changing the cache engine might help20:40
noonedeadpunk[e]I think right now we are having all memcached configured.20:41
noonedeadpunk[e]But then it should be the same node only or not - is a good question. But afaik, memcached right now is just broken for horizon/Django overall20:42

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