upgrade pike to queens get `xxx DBConnectionError SELECT 1`

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upgrade pike to queens get `xxx DBConnectionError SELECT 1`

Ignazio Cassano
Hi all,
upgradig from pike to queens I got a lot of errors in nova-api.log:

upgrade pike to queens get `xxx DBConnectionError SELECT 1`

My issue is the same reported at:


The difference is that I am using centos 7.
I am also using haproxy to balancing galera cluster .
Modifying nova.conf ans using end exluding haproxu specifying only a
galera cluster member the problem disappears.

Please, any help ?

Regards
Ignazio

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