6458c3dba5
If RBD backend is used for Nova ephemeral storage, Nova tries to remove ephemeral storage volume from Ceph in a retry loop: 10 attempts at 1 second intervals, totaling 10 seconds overall - which, due to a thirty second ceph watcher timeout, might result in intermittent volume removal failures on Ceph side. This patch adds params rbd_destroy_volume_retries, defaulting to 12, and rbd_destroy_volume_retry_interval, defaulting to 5, which multiplied, give Ceph reasonable amount of time to complete the operation successfully. Closes-Bug: #1856845 Change-Id: Icfd55617f0126f79d9610f8a2fc6b4c817d1a2bd
20 lines
931 B
YAML
20 lines
931 B
YAML
---
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features:
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- |
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Added params ``[libvirt]/rbd_destroy_volume_retries``, defaulting to 12,
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and ``[libvirt]/rbd_destroy_volume_retry_interval``, defaulting to 5, that
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Nova will use when trying to remove a volume from Ceph in a retry loop
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that combines these parameters together. Thus, maximum elapsing time is by
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default 60 seconds.
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fixes:
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- |
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Nova tries to remove a volume from Ceph in a retry loop of 10 attempts at
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1 second intervals, totaling 10 seconds overall - which, due to 30 second
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ceph watcher timeout, might result in intermittent object removal failures
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on Ceph side (`bug 1856845`_). Setting default values for
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``[libvirt]/rbd_destroy_volume_retries`` to 12 and
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``[libvirt]/rbd_destroy_volume_retry_interval`` to 5, now gives Ceph
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reasonable amount of time to complete the operation successfully.
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.. _`bug 1856845`: https://bugs.launchpad.net/nova/+bug/1856845
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