ceph: check availability of mds cluster on mount after wait timeout

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If all the MDS daemons are down for some reason, then the first mount
attempt will fail with EIO after the mount request times out.  A mount
attempt will also fail with EIO if all of the MDS's are laggy.

This patch changes the code to return -EHOSTUNREACH in these situations
and adds a pr_info error message to help the admin determine the cause.

URL: https://tracker.ceph.com/issues/4386
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

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Xiubo Li 2019-12-10 20:29:40 -05:00 • committed by Ilya Dryomov

parent 4d681c2f91

commit 97820058fb

2 changed files with 6 additions and 2 deletions

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3

fs/ceph/mds_client.c

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5

fs/ceph/super.c

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