topic Re: ErrorMode when task runs in QMC in App Development

ErrorMode when task runs in QMC

Vladislav_qv_dev — Fri, 15 Dec 2023 12:06:34 GMT

Is there any difference between errormode=1 and errormode=2 when you run a task in QMC through a system user?

I want to intentionally get an error in my script, when a condition is met. It looks like:

IF a=b THEN

write error message (just text inside the script that causes the error)

END IF

By default ErrorMode equals 1, but in some cases (maybe when other tasks are running at the same time, I don't understand exactly why), QMC doesn't generate DocumentLog (and I really need it to analyze further) - only TaskLog.

So maybe ErrorMode=1 causes forced closing of the document and in some cases the task doesn't complete adequately?
If I set ErrorMode=2, will something change in terms of creating logs?

Re: ErrorMode when task runs in QMC

Anil_Babu_Samineni — Sun, 17 Dec 2023 06:30:14 GMT

You can maybe trace like,

IF a=b THEN

Trace 'The If condition not met exactly!'

// Same way, you can still call other conditions, an example a=b, What are they?

END IF

Re: ErrorMode when task runs in QMC

barnabyd — Sun, 17 Dec 2023 20:26:06 GMT

G'day @Vladislav_qv_dev,

Are we talking about Qlik Sense on Prem? If so, if a task fails without creating a reload log, then that would normally indicates a problem in the Qlik environment like low available RAM or disk space, or perhaps it's time for a periodic restart of the services to clean out the caches.

If RAM is the problem then that could be caused by the load script in your app if you don't join two large tables correctly. If you mistype the join key on one table, then you can inadvertently create a cross join, which can easily chew up all your RAM.

I hope this helps.

Cheers, Barnaby.

Re: ErrorMode when task runs in QMC

Vladislav_qv_dev — Sun, 17 Dec 2023 20:39:54 GMT

@Anil_Babu_Samineni, thank you for your answer!

But the problem is that I have to call an error during script execution to prevent further executions of following tasks. And it depends on complex logic that is written before this "a=b", so it cannot be done through standard tools of QMC.

So unfortunately, "Trace 'The If condition not met exactly!'" is not enough.

Re: ErrorMode when task runs in QMC

Vladislav_qv_dev — Sun, 17 Dec 2023 20:42:46 GMT

@barnabyd thank you. I'm using QlikView but your description can be right for QlikView as well.
Unfortunately, I cannot influence RAM or disk space and I'm looking for other ways to solve the problem.

Re: ErrorMode when task runs in QMC

marcus_sommer — Mon, 18 Dec 2023 10:17:31 GMT

Make sure that the following configuration is set to 1 within the settings.ini under [Settings 7]:

EnableFlushLog=1

It forces QlikView to write each actions immediately in the log without buffering them which could be lost by errors.