Am 16.08.22 um 08:43 schrieb Gregory Farnum:
I was wondering if it had something to do with quota enforcement. The
other possibility that occurs to me is if other clients are monitoring
the system, or an admin pane (eg the dashboard) is displaying per-volume
or per-client stats, they may be poking at the mountpoint and
interrupting exclusive client caps?
It is really strange behavior.
It only happens in the mountpoint. It only affects the first file that
gets written to. Additional files can be written to with full speed at
the same time if started a little bit later.
We do see some activity on the MDS when the slowdown happens.
The write speed of the first process stays slow until finished (or
canceling the process).
It does not happen in a subdirectory of the mountpoint.
There is no quota set in the filesystem. There are appr 270 files stored
(qcow2 images). There may be a dozen clients for this filesystem.
Regards
--
Robert Sander
Heinlein Consulting GmbH
Schwedter Str. 8/9b, 10119 Berlin
http://www.heinlein-support.de
Tel: 030 / 405051-43
Fax: 030 / 405051-19
Zwangsangaben lt. §35a GmbHG:
HRB 220009 B / Amtsgericht Berlin-Charlottenburg,
Geschäftsführer: Peer Heinlein -- Sitz: Berlin
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