Hi Rik!
Am 15.12.24 um 13:38 schrieb Rik Theys:
Suddenly, a number of clients start to send an abnormal amount of NFS
traffic to the server that saturates their link and never seems to stop.
Running iotop on the clients shows kworker-{rpciod,nfsiod,xprtiod}
processes generating the write traffic. On the server side, the system
seems to process the traffic as the disks are processing the write
requests.
This behavior continues even after stopping all user processes on the
clients and unmounting the NFS mount on the client. Is this normal? I
was under the impression that once the NFS mount is unmounted no further
traffic to the server should be visible?
I'm currently looking at an issue that resembles your description above
(excess traffic to the server for data that was already written and
committed), and part of the packet capture also looks roughly similar to
what you've sent in a followup. Before I dig any deeper: Did you manage
to pinpoint or resolve the problem in the meantime?
Kind regards,
Daniel
--
Daniel Kobras
Principal Architect
Puzzle ITC Deutschland
+49 7071 14316 0
www.puzzle-itc.de
--
Puzzle ITC Deutschland GmbH
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Tübingen
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