After further investigation, it looks like rsyslog is restarted during nova-manage db_sync , and for some reason when running gate-tempest-dsvm-neutron-large-op it doesn't restart properly.
Nov 26 00:45:36 devstack-precise-check-rax-iad-737920 rsyslogd: [origin software="rsyslogd" swVersion="5.8.6" x-pid="3834" x-info="http://www.rsyslog.com"] exiting on signal 15.
After further investigation, it looks like rsyslog is restarted during nova-manage db_sync , and for some reason when running gate-tempest- dsvm-neutron- large-op it doesn't restart properly.
Nov 26 00:45:36 devstack- precise- check-rax- iad-737920 rsyslogd: [origin software="rsyslogd" swVersion="5.8.6" x-pid="3834" x-info="http:// www.rsyslog. com"] exiting on signal 15.