To update, hanging happens when updating local image, not remote, networking
is not a concern here. Any advices how to look into it?
Thanks!
Tony
________________________________________
From: Tony Liu <tonyliu0592(a)hotmail.com>
Sent: August 26, 2023 10:43 PM
To: dev(a)ceph.io; ceph-users(a)ceph.io
Subject: [ceph-users] rbd export-diff/import-diff hangs
Hi,
I'm using rbd import and export to copy image from one cluster to another.
Also using import-diff and export-diff to update image in remote cluster.
For example, "rbd --cluster local export-diff ... | rbd --cluster remote import-diff
...".
Sometimes, the whole command is stuck. I can't tell it's stuck on which end of the
pipe.
I did some search, [1] seems the same issue and [2] is also related.
Wonder if there is any way to identify where it's stuck and get more debugging info.
Given [2], I'd suspect the import-diff is stuck, cause rbd client is importing to the
remote cluster. Networking latency could be involved here? Ping latency is 7~8 ms.
Any comments is appreciated!
[1]
https://bugs.launchpad.net/cinder/+bug/2031897
[2]
https://stackoverflow.com/questions/69858763/ceph-rbd-import-hangs
Thanks!
Tony
_______________________________________________
ceph-users mailing list -- ceph-users(a)ceph.io
To unsubscribe send an email to ceph-users-leave(a)ceph.io