Re: How can I clear/deallocate open File Descriptors

[Vernon Hamberg <vhamberg@xxxxxxxxxxxxxxx>]

John

You could look at the fcntl function - I was involved in a thread a 
while ago here that mentioned this API - one way of calling it (duping 
an FD) will get you the next available FD - I think you could then go 
through from start to that number and try to close them.

That's a very vague recollection - Chuck had some input there, as well.

HTH
Vern

On 4/15/2014 12:10 PM, John Allen wrote:
> Running V6.1 We have system that creates a lot of files in
> the IFS, recently we started getting an error (lots of them
> actually)
>
> CPF9897 socket(): Too many open files for this process.
>
> Apparently there are a lot of File Descriptors being left
> allocated during this process.
>
> I have not tracked down the program at issue here (I am
> thinking some program is not closing the file)
>
>   
>
> But my question is, until I can find the culprit and get it
> fixed is there a way to force all the open file descriptors
> to close or deallocate (not sure of the correct term)
>
> I ran the program CALL PGM(QP0FPTOS) PARM(*DUMPLFS
> '999999')(where 99999 is the job number from the job getting
> this error)
>
> A lot of foreign stuff in the report but I do see:
>
> Max Number of Descriptors Allowed (size)      524282
>
> Max Number of Descriptors Allocated           47
>
> Min Deallocated Descriptor                    45
>
>   
>
> 1)      I need something to do short term to get this
> program running
>
> 2)      Then I will need to track this issue down
>
>   
>
> Any Suggestions on #1 or #2 would be greatly appreciated
>
>      
>
> John
>
>   
>
>