Hello Robert,
did you find a solution finally?
One of our clusters has exactly the same behavior. It's Ceph 19.2.2.
I am going to run all the cephf-journal-tool commands trying to fix that.
There is nothing else I can find to solve this.
Best,
Malte
On 7/14/25 14:38, Robert Sander wrote:
Am 7/10/25 um 14:59 schrieb Joachim Kraftmayer:
My first idea is that you have to increase the timeout, before the
ceph mon will mark the mds as standby.
The error happens immediately after the start of the MDS:
Jul 01 08:50:56 sn04 ceph-mds[1563881]: log_channel(cluster) log [ERR] :
No subtrees found for root MDS rank!
The filesystem has been offline now for over two weeks…
Regards
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