qa/tasks/cephfs/test_scrub.py: use umount_wait to avoid possible ceph-fuse daemon stuck#35328
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batrick merged 1 commit intoceph:masterfrom Jun 3, 2020
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qa/tasks/cephfs/test_scrub.py: use umount_wait to avoid possible ceph-fuse daemon stuck#35328batrick merged 1 commit intoceph:masterfrom
batrick merged 1 commit intoceph:masterfrom
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If the ceph-fuse client need to flush the caps and does sync wait, the umount() will just return successfully, then the netns container will be destroyed and the network will not be reachable, but the ceph-fuse daemon is still stucked and waiting for the flush caps ack. This will cause the ceph-fuse daemon get stuck forever and if the mds daemons get restarted, it will try to reconnect the clients, but the stucked ceph-fuse daemnon won't reply to it, because it is not reachable any more. Fixes: https://tracker.ceph.com/issues/45665 Signed-off-by: Xiubo Li <xiubli@redhat.com>
batrick
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Jun 1, 2020
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If the ceph-fuse client need to flush the caps and does sync wait,
the umount() will just return successfully, then the netns container
will be destroyed and the network will not be reachable, but the
ceph-fuse daemon is still stucked and waiting for the flush caps ack.
This will cause the ceph-fuse daemon get stuck forever and if the
mds daemons get restarted, it will try to reconnect the clients,
but the stucked ceph-fuse daemnon won't reply to it, because the
ceph-fuse client is not reachable any more.
Fixes: https://tracker.ceph.com/issues/45665
Signed-off-by: Xiubo Li xiubli@redhat.com
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