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shared variable

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paustin_ours

Posted: Tue May 27, 2014 5:10 am Post subject: shared variable

Yatiri

Joined: 19 May 2004
Posts: 667
Location: columbus,oh

each of our flows use about 600+ shared variables. Performance is not up to the mark. Memory usage is high. Is there a way to tell how much memory is used up by the shared variables like a statistic?

McueMart

Posted: Tue May 27, 2014 7:09 am Post subject:

Chevalier

Joined: 29 Nov 2011
Posts: 490
Location: UK...somewhere

Unfortunately I don't think any kind of profiling tool exists for the Broker runtime. You might be able to use tools to inspect the broker memory to identify memory leaks but I have never tried this!

If you were doing everything in Java compute nodes it would be much easier

Esa

Posted: Tue May 27, 2014 11:52 am Post subject: Re: shared variable

Grand Master

Joined: 22 May 2008
Posts: 1387
Location: Finland

paustin_ours wrote:

each of our flows use about 600+ shared variables.

I think shared variables are initialized upon deployment, but I'm not sure. I think you can see it if you run user trace while deploying.

But obviously a lot of the variables are initialized to NULL and set on runtime to values extracted from the messages. So checking the allocated memory immediately after deploying a flow onto an empty execution group doesn't necessarily show the real runtime memory consumption of the shared variables. And to be able to compare you should deploy a version of the same flow where you have replaced the keyword SHARED with an empty string.

IMHO using hundreds of shared variables in all flows is a symptom of systematic application of bad design. I hope you want to measure the memory consumption in order to be able to prove that?

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