Hello, problem was in mtu settings on haproxy host. It has set mtu to 9000, whole CEPH cluster have mtu 9000, but client had mtu 1500. Problem was in the fragmentation. When I set on haproxy host mtu to 1500, problem disappeared. Sincerely Jan Marek Dne st, srp 12, 2026 at 05:12:20 CEST napsal(a) Jan Marek via ceph-users:

Hello,

I've tried to connect directly to RGW and everythink works fine. Thus problem is in haproxy, or it's configuration.

Sincerely Jan Marek

Dne st, srp 12, 2026 at 12:51:24 CEST napsal(a) Janne Johansson:

...

after upgrade from ceph 19.2.5 to 20.2.2 (and now I'm on 20.2.3), I have big problem to write any bigger blocks of data to S3 buckets. After upgrade to 20.2.2, everythink PUT requests gets 502 HTTP code. Today I've tried this: 1) I've created new bucket 2) I set this bucket for rustic (rustic init) with user, which is Owner of this buckets. 'rustic init' was fine. 3) I've tried to do backup: 'rustic backup'. No one block of backup data was written.

I would certainly try a manual S3 client and validate if you can or not put objects into buckets, also reading the RGW logs from when this is erroring out seems like a very good idea. -- May the most significant bit of your life be positive.

-- Ing. Jan Marek správce IT

-- Ing. Jan Marek správce IT Jihočeská univerzita v Českých Budějovicích Centum informačních technologií Branišovská 1645/31a, 370 05 České Budějovice T/ +420 38 903 2080 M/ +420 604 660 121 E/ jmarek@jcu.cz www.jcu.cz