Hi,
I am currently looking into MDS warnings (behind on trimming) on a
customer cluster. They recently upgraded to Squid 19.2.3 which seems
to have fixed a bug with trimming, so the warning doesn't come that
often anymore (if at all currently). But when digging a bit deeper, I
noticed these messages in the event get list output:
cephfs-journal-tool --rank=cephfs:0 event get list | head
2026-06-18T13:12:22.821+0000 7fec1b5ff280 0 uh oh, unknown log event
type 100 length 14
2026-06-18T13:12:22.833+0000 7fec1b5ff280 0 uh oh, unknown log event
type 100 length 14
That message is repeated 118 times or so before dumping the actual
event list. I looked at the code for 19.2.0 [0] and 19.2.3 [1], in
both cases event type 100 seems to be defined:
#define EVENT_SEGMENT 100
So why is it unknown? It doesn't appear to have any negative impact,
at least noone has complained yet, but I still wanted to ask what this
is about. Can I ignore this? Will that go away on its own at some point?
Any pointers are appreciated!
Thanks!
Eugen
[0] https://github.com/ceph/ceph/blob/v19.2.0/src/mds/LogEvent.h#L45
[1] https://github.com/ceph/ceph/blob/v19.2.3/src/mds/LogEvent.h#L45
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