In ONTAP, you can see descriptions of errors with the “event route show” command.

 

This is the output for this particular message:

 

 

*> event route show -message-name Nblade.cifsSameTreePerSess –instance

 

                                     Message Name: Nblade.cifsSameTreePerSess

                                         Severity: ERROR

                                Corrective Action: Inspect the application using the connection and also monitor the other applications on the client. The client might be operating incorrectly due to a faulty application running on it. Rebooting the client might also be helpful. In some cases, clients are operating as expected but require a higher threshold, which you can set using (privilege: advanced) "cifs option modify -max-same-tree-connect-per-session" command.

                                      Description: This message occurs when the number of connections to the same share allowed per session is exceeded. This request and any further requests to establish another connection to that share are denied until some connections to the share are released. This typically indicates abnormal client behavior.

                               Supports SNMP trap: false

                                     Destinations: -

            Number of Drops Between Transmissions: 0

Dropping Interval (Seconds) Between Transmissions: 0

 

Essentially, treat this issue like classic 7mode maxmpx issues. You can try increasing the option mentioned in the corrective action.

 

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Mark Flint
Sent: Monday, September 19, 2016 9:51 AM
To: NGC-tmacmd-gmail.com; NGC-james.littlefield-3ds.com
Cc: toasters@teaparty.net
Subject: Re: Nblade.cifsSameTreePerSess:

 

I did that, the ‘helpful’ response was that it was windows………yeah, thanks :)

Then they chased me about closing the call…..

 

Mark

 

From: <toasters-bounces@teaparty.net> on behalf of tmac <tmacmd@gmail.com>
Date: Monday, 19 September 2016 at 13:12
To: LITTLEFIELD James <James.LITTLEFIELD@3ds.com>
Cc: "toasters@teaparty.net" <toasters@teaparty.net>
Subject: Re: Nblade.cifsSameTreePerSess:

 

Open a case with NetApp.

 

There is a KB article that they can easily look up that will help.

They need to tsearch for "Nblade.cifsSameTreePerSess: Received too many connection requests" and it shoudl come up for them.

 

Appears to be an internal KB, so I do not feel comfortable sharing.

 

Exactly your error.


--tmac

 

Tim McCarthy, Principal Consultant

Proud Member of the #NetAppATeam

I Blog at TMACsRack

 

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On Mon, Sep 19, 2016 at 7:57 AM, LITTLEFIELD James <James.LITTLEFIELD@3ds.com> wrote:

Yes, one of our clusters is showing lots of those message in the event log. We are still trying to determine exactly what the clients are doing.

 


Best Regards,

 

Jim LITTLEFIELD

Expert Systems & Storage Americas

 

Office: +1 401 531 5147

 

Dassault Systèmes Simulia Corp., 1301 Atwood Avenue, Suite 101W | Johnston, RI 02919 | United States

 

 

 

 

 

On Sep 19, 2016, at 7:51 AM, Mark Flint <mf1@sanger.ac.uk> wrote:

 

Hi all, been seeing quite a bit of this error recently, and I wondered if anyone had seen this before?

It looks like e either the user, or software, is trying to connect to the admin share, but could also just

be trying to walk the share tree ,maybe?  Full error reads:-

 

Nblade.cifsSameTreePerSess: Received too many connection requests to the same share from one session: clientIP:port

share "ipc$", user "

 

 

removed IP and userid.

 

 

Mark 

-- The Wellcome Trust Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.

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