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From: Bruce Fields <bfields@fieldses.org>
To: Chuck Lever <chuck.lever@oracle.com>
Cc: Kevin Vasko <kvasko@gmail.com>,
	Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: NFSv4 client locks up on larger writes with Kerberos enabled
Date: Wed, 25 Sep 2019 16:07:23 -0400
Message-ID: <20190925200723.GA11954@fieldses.org> (raw)
In-Reply-To: <FCAD9EFD-26AD-41F0-BCCA-80E475219731@oracle.com>

On Wed, Sep 25, 2019 at 11:49:14AM -0700, Chuck Lever wrote:
> Sounds like the NFS server is dropping the connection. With
> GSS enabled, that's usually a sign that the GSS window has
> overflowed.

Would that show up in the rpc statistics on the client somehow?

In that case--I seem to remember there's a way to configure the size of
the client's slot table, maybe lowering that (decreasing the number of
rpc's allowed to be outstanding at a time) would work around the
problem.

Should the client be doing something different to avoid or recover from
overflows of the gss window?

--b.

  parent reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-18 23:36 Kevin Vasko
     [not found] ` <E172CA50-EC89-4072-9C1D-1B825DC3FE8B@lysator.liu.se>
2019-09-19 14:19   ` Kevin Vasko
     [not found]     ` <72E82F62-C743-4783-B81E-98E6A8E35738@lysator.liu.se>
2019-09-19 14:58       ` Kevin Vasko
2019-09-25 16:48 ` bfields
2019-09-25 17:06   ` Chuck Lever
2019-09-25 18:44     ` Kevin Vasko
2019-09-25 18:49       ` Chuck Lever
2019-09-25 19:10         ` Kevin Vasko
2019-09-25 20:07         ` Bruce Fields [this message]
2019-09-26 15:55           ` Chuck Lever
2019-09-26 16:05             ` Bruce Fields
2019-09-26 19:55             ` Bruce Fields
2019-09-30 14:51               ` Kevin Vasko
2019-09-30 16:19                 ` Bruce Fields
2019-09-26  7:30       ` Daniel Kobras
2019-09-26 16:25 Kevin Vasko

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