Re: Question on QTEMP and CGI Jobs

There is nothing special or different about QTEMP when used in a CGI thread. It's unique to the thread/job so nothing else can touch objects in there other than that thread. Obviously you cannot rely on storing a value in QTEMP on one request and retrieving it in another request because (unless you use persistent CGI) each request can go to a different thread (with a different instance of QTEMP).

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On 4 Mar 2017, at 05:58, Richard Schoen <Richard.Schoen@xxxxxxxxxxxxxxx> wrote:

We have an interesting scenario where a CGI job is using a data area in QTEMP for a temp value in a web app and there appears to be a random issue where that value gets clobbered by another job. (At least that's what we think is happening.)

My understanding is that each CGI call is synchronous and each thread/program active job instance has its own copy of QTEMP library so one call on a particular CGI job thread would have to complete before it can be re-used by another call. Or if there is only 1 CGI thread/job subsequent calls will block until the executing call has completed.

Is my understanding of this correct ?

Would there be any way for two CGI calls at the same time to overlap the QTEMP libs ?

Hope this makes sense.

Any thoughts appreciated.

Thanks.

Regards,

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Richard Schoen
Director of Document Management

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