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termie / nova-migration-demo

Nova is a cloud computing fabric controller (the main part of an IaaS system). It is written in Python.
http://openstack.org/projects/compute/
Apache License 2.0
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nbd device busy and inject key fails #820

Open termie opened 13 years ago

termie commented 13 years ago

We are seeing issues where occassionally key injection fails with the following error:

Stderr: 'mount: /dev/nbd15 already mounted or /tmp/tmpaLP6pw busy\n')

We have not been able to isolate what could be causing this. It doesn't seem to be a race condition. Perhaps tune2fs leaves the drive busy for a second after it returns?

Perhaps we could work around this by passing attempts=3 into execute to see if it helps at all.