Public bug reported: At the moment, if a device attempts to be detached and times out (using libvirt), it will log a message:
https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L2570-L2573 However, this is not a failure, since we actually retry the process a few more times depending on configuration, and then if it is a full failure, we do report that: https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L2504 In high load environments where this timeout might be hit, this triggers "ERROR" messages that might seem problematic to the operator, however, since the follow up attempt succeeds, there's no need for attention. This message should be logged as a WARNING since the operator will only need to intervene if the ERROR is logged and it is a full failure of detaching the device. ** Affects: nova Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1972023 Title: Failed (but retryable) device detaches are logged as ERROR Status in OpenStack Compute (nova): New Bug description: At the moment, if a device attempts to be detached and times out (using libvirt), it will log a message: https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L2570-L2573 However, this is not a failure, since we actually retry the process a few more times depending on configuration, and then if it is a full failure, we do report that: https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L2504 In high load environments where this timeout might be hit, this triggers "ERROR" messages that might seem problematic to the operator, however, since the follow up attempt succeeds, there's no need for attention. This message should be logged as a WARNING since the operator will only need to intervene if the ERROR is logged and it is a full failure of detaching the device. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1972023/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
