Re: rdma connection close/reopen every 5 mins

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> On Apr 26, 2017, at 6:46 PM, Trond Myklebust <trondmy@xxxxxxxxxxxxxxx> wrote:
> 
> On Wed, 2017-04-26 at 15:52 -0700, Chuck Lever wrote:
>>> On Apr 26, 2017, at 3:47 PM, scar <scar@xxxxxxxxxx> wrote:
>>> 
>>> Chuck Lever wrote on 04/26/2017 01:32 PM:
>>>> If it's every 5 minutes, that's probably the RPC idle timeout
>>>> that is closing the connection.
>>>> 
>>>> So this should be entirely harmless.
>>> 
>>> Yes so far it seems harmless, but it is annoying and fills up the
>>> log with spam, plus it's not something I see when using NFS/TCP.
>> 
>> That's correct, NFS/TCP does not have the "connected / closed"
>> messages, but the idle timeout behavior is the exactly the same.
>> 
>> I tried to remove those messages a few years ago and was told
>> to go pound sand.
>> 
> 
> 
> By me?

No, I filed a bug on bugzilla.kernel.org and I think it was
Alan Cox (!) who told me to leave these alone.


> I’d be happy to take a patch to remove those messages. I find it
> absolutely ridiculous to be logging fully expected behaviour like this.
> It should at best be a dprintk() and I'd prefer to replace it with
> tracepoints like we do for the socket code.

I can send a patch for 4.13 that converts these to
dprintks for now. Tracepoints are definitely in plan...



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