Re: Number of files open in the IFS

[Bruce Vining <bvining@xxxxxxxxxxxxxxx>]

I'm glad to hear that the problem was resolved.  If you ever run into a situation where the user really does need lots of file open, in addition to your own application needs, you may (if you aren't already aware of it) find the Change Maximum Number of File Descriptors API DosSetRelMaxFH handy.  You can find it at http://publib.boulder.ibm.com/infocenter/systems/scope/i5os/topic/apis/dossrmfh.htm

  Bruce Vining
  http://www.brucevining.com/
  
Peter Clifford <pete@xxxxxxxxxxxxxxxxxxxxx> wrote:
  Thanks Bruce, I'll take a look at that.

As it turns out, the customer traced to the problem to a program of their 
own that was opening files in the IFS and not closing them. Our code just 
happened to be unlucky enough to open the file that pushed things over the 
limit.

Pete
"Bruce Vining" wrote in message 
news:mailman.2477.1200593645.2382.midrange-l@xxxxxxxxxxxxxxx
> The Retrieve Referenced Objects (QP0LRRO) API might be of assistance to 
> you. The API will return information on the integrated file system 
> objects that are currently referenced by a specific job, along with the 
> number of references to the object. The API documentation is at 
> http://publib.boulder.ibm.com/infocenter/systems/scope/i5os/topic/apis/qp0lrro.htm
>
> Bruce Vining
> http://www.brucevining.com/
>
> Peter Clifford 
wrote:
> Does anyone know of a way of determining how many IFS files are currently
> open, i.e. file descriptors opened with the UNIX-style open() IFS API?
>
> I have an application that is crashing with return code 3452 "Too many 
> open
> files for this process". I suspect a file is being opened somewhere and 
> not
> closed, but tracing the offending code is proving difficult and I would 
> like
> to be able to check the open file count at various points in processing.
>
> Thanks
>
> Pete
>
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> Bruce
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