Public bug reported:
Description:
============
Due to overload situation in our storage one NFS mount went into stale mode.
All other mount points where accessible and working.
Deletion of a VM on this hypervisor was not possible since nova-compute wasn't
reactive.
The agent was flagged as:
> nova-manage service list
nova-compute de4-2e-ff-0d-44-a4 nova enabled XXX 2017-05-16
11:49:00.577943
The nova-compute services scans over all attached volume paths (ephemeral and
cinder).
In case of a single stale NFS mount will pause the whole agent.
With an inactive agent no operation are possible, even VM deletion.
Steps to reproduce:
===================
1.) Boot a VM
2.) Attach a volume
3.) Make the NFS backend inaccessible (e.g. using a drop iptable rule)
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1691131
Title:
NFS stale causes nova compute agent outage
Status in OpenStack Compute (nova):
New
Bug description:
Description:
============
Due to overload situation in our storage one NFS mount went into stale mode.
All other mount points where accessible and working.
Deletion of a VM on this hypervisor was not possible since nova-compute
wasn't reactive.
The agent was flagged as:
> nova-manage service list
nova-compute de4-2e-ff-0d-44-a4 nova enabled XXX 2017-05-16
11:49:00.577943
The nova-compute services scans over all attached volume paths (ephemeral and
cinder).
In case of a single stale NFS mount will pause the whole agent.
With an inactive agent no operation are possible, even VM deletion.
Steps to reproduce:
===================
1.) Boot a VM
2.) Attach a volume
3.) Make the NFS backend inaccessible (e.g. using a drop iptable rule)
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1691131/+subscriptions
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