> On 19 Dec 2019, at 02:22, Rick Macklem <[email protected]> wrote:
>
> Richard P Mackerras wrote:
>
>> Hi,
>> What software version is the NetApp using?
>> Is the exported volume big?
>> Is the vserver configured for 64bit identifiers?
>>
>> If you enable NFS V4.0 or 4.1 other NFS clients using defaults might mount
>> NFSv4.x >unexpectedly after a reboot so you need to watch that.
> The FreeBSD client always uses NFSv3 mounts by default. To get NFSv4 you must
> explicitly specify the "nfsv4" or "vers=4" mount option. For NFSv4.1, you must
> also specify "minorversion=1”.
>
> The Linux distros I am familiar with will use the highest NFS version
> supported by
> the server by default. (I suspect some are using NFSv4.1 without realizing it,
> which isn't necessarily bad.)
>
> nfsstat -m
> will show you which version is actually in use for both FreeBSD and Linux.
>
all mounts are nfsv3/tcp
the error is also appearing on freebsd-11.2-stable, I’m now checking if it’s
also
happening on 12.1
btw, the NetApp version is 9.3P17
cheers,
danny
> rick
>
> Cheers
>
> Richard
> (NetApp admin)
>
> On Wed, 18 Dec 2019 at 15:46, Daniel Braniss
> <[email protected]<mailto:[email protected]>> wrote:
>
>
>> On 18 Dec 2019, at 16:55, Rick Macklem
>> <[email protected]<mailto:[email protected]>> wrote:
>>
>> Daniel Braniss wrote:
>>
>>> Hi,
>>> The server with the problems is running FreeBSD 11.1 stable, it was working
>>> fine for >several months,
>>> but after a software upgrade of our NetAPP server it’s reporting many lockd
>>> errors >and becomes catatonic,
>>> ...
>>> Dec 18 13:11:02 moo-09 kernel: nfs server fr-06:/web/www: lockd not
>>> responding
>>> Dec 18 13:11:45 moo-09 last message repeated 7 times
>>> Dec 18 13:12:55 moo-09 last message repeated 8 times
>>> Dec 18 13:13:10 moo-09 kernel: nfs server fr-06:/web/www: lockd is alive
>>> again
>>> Dec 18 13:13:10 moo-09 last message repeated 8 times
>>> Dec 18 13:13:29 moo-09 kernel: sonewconn: pcb 0xfffff8004cc051d0: Listen
>>> queue >overflow: 194 already in queue awaiting acceptance (1 occurrences)
>>> Dec 18 13:14:29 moo-09 kernel: sonewconn: pcb 0xfffff8004cc051d0: Listen
>>> queue >overflow: 193 already in queue awaiting acceptance (3957 occurrences)
>>> Dec 18 13:15:29 moo-09 kernel: sonewconn: pcb 0xfffff8004cc051d0: Listen
>>> queue >overflow: 193 already in queue awaiting acceptance …
>> Seems like their software upgrade didn't improve handling of NLM RPCs?
>> Appears to be handling RPCs slowly and/or intermittently. Note that no one
>> tests it with IPv6, so at least make sure you are still using IPv4 for the
>> mounts and
>> try and make sure IP broadcast works between client and Netapp. I think the
>> NLM
>> and NSM (rpc.statd) still use IP broadcast sometimes.
>>
> we are ipv4 - we have our own class c :-)
>> Maybe the network guys can suggest more w.r.t. why, but as I've stated
>> before,
>> the NLM is a fundamentally broken protocol which was never published by Sun,
>> so I suggest you avoid using it if at all possible.
> well, at the moment the ball is on NetAPP court, and switching to NFSv4 at
> the moment is out of the question, it’s
> a production server used by several thousand students.
>
>>
>> - If the locks don't need to be seen by other clients, you can just use the
>> "nolockd"
>> mount option.
>> or
>> - If locks need to be seen by other clients, try NFSv4 mounts. Netapp filers
>> should support NFSv4.1, which is a much better protocol that NFSv4.0.
>>
>> Good luck with it, rick
> thanks
> danny
>
>> …
>> any ideas?
>>
>> thanks,
>> danny
>>
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