[Samba] Filelocking Issue in 4.18.11
Stolte, Felix
f.stolte at fz-juelich.de
Thu Apr 18 06:33:41 UTC 2024
Hi folks,
we are running a clustered Samba Fileserver using CTDB with two public IPs. We observed the following (mis) behavior:
If user A with write permissions opens an excel file via public ip A and User B opens the same file via public ip B, both users get a Deny-Write lock on the same file and overwrite each others changes:
0:3693691 145522 DENY_WRITE 0x12019f RDWR LEASE(RWH) /srv/test test.xlsx Thu Apr 18 08:23:38 2024
1:3437621 0 DENY_WRITE 0x12019f RDWR LEASE(RWH) /srv/test test.xlsx Thu Apr 18 08:19:33 2024
Is this a bug or maybe a misconfiguration? In the latter, which parameters could cause this?
We are using sernet packages 4.18.11 on ubuntu 22.04 kernel 5.15.0-102
Best regards
Felix
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