Nova conductor errors

Hi All, We have a Yoga OSA setup. We have been observing the following errors in the nova conductor service intermittently. After a restart of the service, they seem to disappear. The logs are as follows: --- nova-conductor[3199409]: ERROR oslo.messaging._drivers.impl_rabbit [-] Connection failed: [Errno 24] Too many open files (retrying in 0 seconds): OSError: [Errno 24] Too many open files --- Is it a known issue with yoga ? Please let me know. Thanks Y.G