Re: [foxboro] AIM*OPC Server CLOSE_WAIT errors
- From: Ted Jirik <ted.jirik@xxxxxxxxxxxxxxx>
- To: "foxboro@xxxxxxxxxxxxx" <foxboro@xxxxxxxxxxxxx>
- Date: Thu, 14 Mar 2013 10:37:49 -0700
David,
Just spoke to our field service rep and he verified my thinking. That is what
we did to solve it at two sites.
Reboot after changes?
Be sure other servers are not listed in your an_init.tcp file?
Ted
On Mar 14, 2013, at 8:48 AM, "Johnson, David"
<David.Johnson@xxxxxxxxxxxxxxxxxx> wrote:
> Ted,
>
> That sounds like a potential problem, but we checked, and the disable
> broadcast box was checked in APIAdmin on ALL of the AWs listed. We only have
> AIM*OPC Server on SRVONE, there are no other OPC servers or clients on the
> DCS network. So I still don't know why the AIM*OPC Server is attempting to
> talk to the other AWs. And although I only listed 2 sample netstat lines
> with the CLOSE_WAIT there are many, possibly hundreds, to each AW after a few
> days.
>
> Any other ideas?
> Thanks,
> David
>
>
>
> -----Original Message-----
> From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On
> Behalf Of Ted Jirik
> Sent: Thursday, March 14, 2013 9:32 AM
> To: foxboro@xxxxxxxxxxxxx
> Subject: Re: [foxboro] AIM*OPC Server CLOSE_WAIT errors
>
> David,
>
> We had the same problem. As I recall we had to disable broadcast requests
> under edit server connection in apiadmin. We did this on all stations and the
> problem went away.
>
> Ted
>
> On Mar 14, 2013, at 6:25 AM, Johnson, David wrote:
>
>> Hello All,
>> We have an AIM*OPC server installed on an AW running Win 2003 Server. The
>> OPC server is working (will return data, no errors). We have an OSI PI data
>> collector running. It will connect to and get data from I/A via the OPC
>> link. This will work for several days, but then the AW becomes so
>> unresponsive, it must be rebooted. After a reboot the problem goes away for
>> a day or two, and then returns.
>>
>> Running the netstat command shows the following
>>
>> TCP SRVONE:4997 SRVTWO:45678 CLOSE_WAIT 612
>> AIM AT OPC Server
>> [Aimopcsvr.exe]
>> TCP SRVONE:4998 SRVTWO:45678 CLOSE_WAIT 612
>> AIM AT OPC Server
>> [Aimopcsvr.exe]
>> ..
>> We have these going from SRVONE to ALL of the other AWs, not just SRVTWO.
>> It looks like some kind of broadcast message to the other AWs.
>>
>> Does anyone know what would cause this, and how we should correct it.
>>
>> Thanks,
>> David Johnson
>> PREMIER System Integrators, Inc.
>> Cell :(256) 318-9257
>> Work :(256) 355-1732
>> [cid:image001.jpg@01CE2086.8A0C9530]
>>
>>
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