[lustre-discuss] ZFS w/Lustre problem

[Steve Thompson]

On Mon, 9 Nov 2020, Hans Henrik Happe wrote:

> I sounds like this issue, but I'm not sure what your dnodesize is:
>
> https://github.com/openzfs/zfs/issues/8458
>
> ZFS 0.8.1+ on the receiving side should fix it. Then again ZFS 0.8 is
> not supported in Lustre 2.12, so it's a bit hard to restore, without
> copying the underlying devices.

Hans Henrik,

Many thanks for your input. I had in fact known about the dnodesize issue, 
and tested a workaround. Unfortunately, it turned out not to be this. 
Instead, I have tested a patch to zfs_send.c, which does appear to have 
solved the issue. The zfs send/recv is still running, however; if it 
completes successfully, I will post again with details of the patch.

Steve
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