ADP Client Service (Analytics Memory Leak)

[Anonymous]

Hello I noticed when un-stitching parts after some (heavy data) Alias will crash. If I look at memory usage the Autodesk Analytics service will be using in excess of 6GB of RAM.

Step A:

1. Run Alias - normal usage, (maybe a couple of hours)

2. Import STEP file (6MB)

3. Un-Stitch file.

= HARD CRASH. (no warning etc)

Step B:

1. Restart Alias.

2. Import just the STEP part.

3. Un-Stitch the file.

=HARD CRASH. 

Step C:

1. Kill Autodesk Analytics Service/

2. Import just the STEP part.

3. Un-Stitch the file.

=OK (no crash)

 I did not check the memory usage prior to noticing this and there is a possibility that the usage may have been high for a while. Whatever the case I don't feel it should be causing instability.

[Michael-GG]

Hi Stefanov,

So I *guess* I understand what's the issue here. The desktop analytics process keeps on running, even when Alias is ended or crashing. So if your crash was due to "out of memory" (which is easily possible, STEP import and unstitch take some memory), the big analytics process would still be there, even after an Alias crash, exlpaining what you describe in step B and C. I will investigate this, and have logged ALS-5539 for it.
Thanks for reporting!

[Anonymous]

Hello Michael

Thank you. Yes your guess is correct. After crashing the service stays active. The crashes are hard. This has happened before on different machines.

[Michael-GG]

Hi Stefanov,
Just in case that what I see is the expected behavior, could you please let us know the exact version of Alias you are using (like 2018.5, 2019 or 2019.1)?

Thanks,

GG

[Anonymous]

Hello.

I was using 2019 and after posting I noticed that 2019.1 is out and I have upgraded. Have not seen the issue again but I have not used it for long enough to be sure.

[Anonymous]

Hello, I am having the same issue again, perhaps the root cause is not ADP but the Unstitching of Solids. 

Scenario

1. Open wire with SOLIDs,

2. Un-stitch SOLID component 

CRASH (hard crash no warning)

3. Kill ADP process.

4. Re-Open same file.

5. Un-stitch SOLID component (same)

CRASH (hard crash no warning)

6. Re-Open same file.

7. Un-stitch SOLID component (same)

CRASH (hard crash no warning)

rinse and repeat. I will reboot next to see if it is fully repeatable.

I can confirm after reboot the issue can not be reproduced. Please note this machine I am using is used only for Alias. (nothing else was/is being run on it)

[Michael-GG]

I still think it might be an out of memory issue. That would explain the hard crash (no memory for CER report), the fact that killing a consumptive process helped (temporarily at least), and also that your crash is gone after a reboot.

Could you please have a look at the task manager to check your RAM next time you see this?

Other possibility might be a non initialized value, which is simply randomly creating crashes, depending on the machine state. I will try to reproduce this.

[james_searle]

I'm regularly getting the issue where ADP Client service consumes all of the memory on my machine (in excess of 60Gb of memory.) My Alias wont kick me out but it becomes unusable. I have to restart the machine to clear the issue properly. 
I haven't figured out what causes this to happen yet but I suspect it may involve exporting data in a different format. I'll let you know if I figure it out. I'm using 2019.1 on windows 7 pro.

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