Facing this issue on trying to start a devstack installation Tried with an existing as well as new installation.
42201 CRITICAL keystone [-] DBConnectionError: (OperationalError) (2013, 'Lost connection to MySQL server during query') 'ALTER TABLE domain ADD CONSTRAINT ixu_domain_name UNIQUE (name)' () This happens when keystone is starting 42201 TRACE keystone raise exception.DBConnectionError(operational_error) 42201 TRACE keystone DBConnectionError: (OperationalError) (2013, 'Lost connection to MySQL server during query') 'ALTER TABLE domain ADD CONSTRAINT ixu_domain_name UNIQUE (name)' () Thanks Rajdeep
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