** Project changed: nova => nova (Ubuntu)
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https://bugs.launchpad.net/bugs/1287666
Title:
qemu-nbd processes left behind after instance deletion
Status in “nova” package in Ubuntu:
New
Bug description:
We have a couple of nova compute nodes which have ended up with a load
of qemu-nbd processes:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
24365 root 20 0 364m 2304 988 R 86 0.0 445:23.55 qemu-nbd
10512 root 20 0 363m 2044 924 R 70 0.0 512:55.08 qemu-nbd
28618 root 20 0 294m 2292 980 R 66 0.0 255:53.59 qemu-nbd
31353 root 20 0 294m 2300 984 R 65 0.0 254:18.38 qemu-nbd
12326 root 20 0 289m 2028 920 R 65 0.0 451:57.23 qemu-nbd
1031 root 20 0 361m 2040 920 R 64 0.0 253:19.43 qemu-nbd
28248 root 20 0 291m 2032 924 R 64 0.0 442:52.39 qemu-nbd
5999 root 20 0 294m 2292 984 R 64 0.0 198:28.80 qemu-nbd
28179 root 20 0 291m 2028 920 R 64 0.0 256:06.30 qemu-nbd
13010 root 20 0 291m 2036 924 R 62 0.0 512:27.49 qemu-nbd
18671 root 20 0 300m 2292 988 R 61 0.0 449:27.23 qemu-nbd
Looking at these processes, most of them refer to instances that no
longer exist:
# ps -ef | fgrep 10512
root 10512 1 80 00:35 ? 08:34:07 /usr/bin/qemu-nbd -c
/dev/nbd9 /srv/nova/instances/baf8f430-2a6d-4fee-82d3-12d2a0db32e5/disk
# ls -l /srv/nova/instances/baf8f430-2a6d-4fee-82d3-12d2a0db32e5/disk
ls: cannot access
/srv/nova/instances/baf8f430-2a6d-4fee-82d3-12d2a0db32e5/disk: No such file or
directory
There are no obvious errors in the logs to suggest anything went
wrong.
This is version 1:2013.2.1-0ubuntu1~cloud0 running on precise.
Bug #1250231 appears to be describing something very similar if it
helps in any way.
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https://bugs.launchpad.net/ubuntu/+source/nova/+bug/1287666/+subscriptions
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