From: "Bjørnar Ness" <bjornar.ness@gmail.com>
To: linux-nfs@vger.kernel.org
Subject: Re: caching issue with nocto
Date: Thu, 13 Jun 2013 09:47:43 +0200 [thread overview]
Message-ID: <CAJO99T=ugw6bk_jvv8dEbBiRLCccRXQ+TjFVnZTPhOc8p=KuGw@mail.gmail.com> (raw)
In-Reply-To: <CAJO99TmfCTYgyrwgUWUmFNGjhQhtHzA7+YDby_MNH2Bjt5tk2g@mail.gmail.com>
I have not yet received any feedback on this issue. Can someone please take
a look into this?
Seems like updating mtime on the folder from different client is causes nocto to
stop working on a mount (or a subfolder of the mount)
client1:
mount -t nfs -o
vers=3,noatime,nodiratime,noacl,ac,sharecache,lookupcache=all,nocto
10.30.0.11/foo /mnt
while true; do time cat /mnt/linux-headers/*.h >/dev/null ; done
real 0m1.037s
user 0m0.008s
sys 0m0.088s
real 0m0.021s
user 0m0.008s
sys 0m0.008s
[...]
client2:
same mount,
touch /mnt/linux-headers
What happends (after few secs) is client1 times goes to over a sec and
stays there for infinity.
a -o remount (run a few times) solves problem (until client2 touches a
folder again..)
--
Bj(/)rnar
prev parent reply other threads:[~2013-06-13 7:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-10 8:37 caching issue with nocto Bjørnar Ness
2013-06-13 7:47 ` Bjørnar Ness [this message]
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