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On 16/04/2020 11:12, Ralph Boehme via samba wrote: > Am 4/16/20 um 10:42 AM schrieb Giuseppe Lo Presti: [...] >> the other locking settings? In particular: >> >> ? posix locking = no >> ? strict locking = no >> ? oplocks = no >> ? level2 oplocks = no >> ? kernel oplocks = no > > that depends on your use case. If you sharing SMB only there's p...

On 15/04/2020 16:57, Ralph Boehme via samba wrote: > Am 4/15/20 um 10:59 AM schrieb Giuseppe Lo Presti via samba: >> So the question is do you acknowledge the correct behaviour should be to >> prevent the second client from getting the lock? > > yes. My bet: your cluster filesystem device nummer differs across nodes. Cf: Bingo! Indeed inodes are (obviously) identical, but device...

On 15/10/2020 09:46, Ralph Boehme wrote: > Am 10/15/20 um 9:30 AM schrieb Giuseppe Lo Presti via samba: >> Anyone knowing what happened at the time within samba-technical (if it >> can be disclosed)? > > iirc I tried to look into this offlist with the OP and actually spent > considerable time back then trying to reproduce the issue, but couldn't. > > I can&...

On 13/10/2020 23:00, Jeremy Allison wrote: > On Mon, Oct 12, 2020 at 03:16:31PM +0200, Giuseppe Lo Presti via samba wrote: [...] >> As the mentioned thread seems to have been moved to the samba-technical >> mailing list, was there any conclusion reached? In particular, we?re looking >> for suggestions on possible reconfigurations (if any!) of our Windows >> clients, as we don?t...

...we don?t expect the Samba server can do anything to mitigate this behaviour. Or in alternative, is there an alternative SMB client for Windows (if it is at all possible to replace the native one)? Thanks in advance for any suggestion on the topic and kind regards, Giuseppe -- Dr. Giuseppe Lo Presti CERN IT/Storage Geneva - Switzerland

...hen the two clients happen to connect to the same samba gateway. The issue is that both clients are able to take an exclusive lock on the same file, as if the lock information is not propagated across the cluster. And indeed I could see the following on the server side: # smbstatus -L | grep lopresti 2:8324 4179 DENY_ALL 0x3 RDWR NONE /eos home-l/lopresti/testsambalock Tue Apr 14 12:00:45 2020 3:29245 4179 DENY_ALL 0x3 RDWR NONE /eos home-l/lopresti/testsambalock Tue Apr 14 12:02:38 2020 I obtained the above by patching the smbclient code from a 4.12 branch following the above mentioned thr...

Am 4/16/20 um 10:42 AM schrieb Giuseppe Lo Presti: > Bingo! > > Indeed inodes are (obviously) identical, but device numbers differ. For > the record, the solution has been to include as suggested: > > ? vfs objects = fileid > ? fileid:algorithm = fsname > > in the global configuration. With this, Microsoft Office - th...

On Mon, Oct 12, 2020 at 03:16:31PM +0200, Giuseppe Lo Presti via samba wrote: > Hello Samba experts, > > I'd like to revive an old thread from 2017, where a performance regression > of the Windows client implementation of SMB was discussed > (https://lists.samba.org/archive/samba/2017-August/210366.html). > > We run a ctdb-managed...

Am 10/15/20 um 9:30 AM schrieb Giuseppe Lo Presti via samba: > Anyone knowing what happened at the time within samba-technical (if it > can be disclosed)? iirc I tried to look into this offlist with the OP and actually spent considerable time back then trying to reproduce the issue, but couldn't. I can't find the whole thread in my...

Am 10/15/20 um 11:01 AM schrieb Giuseppe Lo Presti: > For the reproducibility, it should be fairly straightforward with a > Powershell script as posted at the bottom, and either simply strace smbd > (just count how many accesses are executed per file), or use wireshark > as it understands the SMB protocol. Then compare this with the sam...

Dear all, Following [1] from a year ago, I'd like to know what is the state of the crossrename VFS module, and whether it's expected to be supported at least together with the recycle module? To be honest I'm quite sympathetic with the reasoning in [1] and I don't see a general use of crossrename. However, it remains relevant in the context of recycle, and currently I