You mean the image is in use while you’re exporting? Have thought about creating snapshots and exporting those? Or set up rbd mirroring? Zitat von Tony Liu <tonyliu0592@hotmail.com>:
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@hotmail.com> Sent: August 26, 2023 10:43 PM To: dev@ceph.io; ceph-users@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@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io