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David Benn
David Benn's picture
memory overflow

Hi Brad

Thanks for your bug report. The short answer is that this is a known problem that has been addressed in some ways but I completely agree, it is not yet a solved problem and needs more attention.

There is an old ticket for this but I've just created a new one:

  https://github.com/AAVSO/VStar/issues/38

There is at least one simple way to improve the scenario you are faced with: increase the amount of memory available to the Java Virtual Machine when VStar is running, or "heap" size. This is mentioned in the ticket above. I can say more here or contact you via email about this.

David

WBY
WBY's picture
VStar Memory Overflow

I think VStar has some memory leaks. After sequentially loading analyzing and closing a number of data files, annecdotally it seems to be more than 20 or so,  some with a few thousand observations, others with a few hundred,  VStar seems to run out of memory as though it wasn't fully emptying its memory space when each data file is closed. 

A screenshot of the error message when this occurred when starting a DCDFT on the next file

File upload: 
David Benn
David Benn's picture
Overflow

Thanks for the screenshot Brad.

I'm capturing details here:

  https://github.com/AAVSO/VStar/issues/38

By the way, did you delete the original message that I replied to above?

David

David Benn
David Benn's picture
An odd counterpoint

Hi Brad

Today I've been working on and running a script that loads a few hundred datasets of at least 1000 observations per dataset, does period analysis, creates and saves a phase plot and saves this and light curve PNGs.

I'll have to compare notes with you in email on what you're loading compared to this etc.

David

sgor
sgor's picture
VStar on Mac

Hello

I purchased aa new Mac laptop and get his message when trying to run VStar:

"VStar" can't be opened because Apple cannot check ot for malicious software.

The software needs to be updated. Contact the developer for more information.

I am using the latest (2.21.2) VStar download

Anyone have any ideas?

 

Thanks

George

David Benn
David Benn's picture
VStar on Mac

Hi George

Apologies for the delay.

I'm running macOS Catalina. Hw about you?

Are you using WebStart or the dmg downloaded from here:

  https://github.com/AAVSO/VStar/releases/tag/2.21.2

I'm guessing the latter. If so, in Apple Preferences -> Security & Privacy -> General, does "Allow apps downloaded from:" have "App Store" or "App Store and identified developers" selected?

What version of Java? I don't think that's the issue here, but just for comparison.

David

sgor
sgor's picture
VStar on Mac

Hi David,

!. Running the dmg download V 2.21.2

2. Running Catalina 10.15.7

3. Running Java 8 update 261

4. App store and identified developers is selected

 

I dug out of a closet an HP laptop. I put Java and VSTAR on it. No problem getting VSTAR to come up. BUT! I installed the AAVSO Upload File plugin and when I try to use an Upload File i get the error:

Obsevation Read Error: No observations for specified period

I'm sure I am doing something wrong, but darned if I know what! A few years back I used VSTAR extensively. Thanks for your support and patience.

 

George

David Benn
David Benn's picture
VStar on Mac

Hi George

The error on HP you see may be due to not first selecting the plugin from the list in the file dialog, but using the standard simple/download plugin. You can switch back to the old way of having obs source plugins in File menu via plugin prefs to check.

On the Mac, have you tried ctrl-clicking the VStar file once unpacked from the DMG and then clicking Open? I wish I could see a screen shot of what you are seeing. Perhaps we could Skype if we still can't figure it out.

David

sgor
sgor's picture
Hi David

Hi David

HP Prob:  Mia Culpa.  Wouldnt you know it, the upload file I chose for a test was without a check star! The field is very sparse. Upon choosing another upload file, all was well

Mac: Let me try a few things today. If I dont get anywhere, we can go to the next level.

 

again , thanks for your help and patience,

 

George

David Benn
David Benn's picture
HP

Good to know the HP problem was just file related.

David

sgor
sgor's picture
VStar on Mac

Hi David

Do you do Zoom? I could send you a Zoom link and share the VSTAR screen with you. 

There is also Teamviewer. With it you could take remote control of my Mac

 

George

David Benn
David Benn's picture
VStar on Mac

Hi George

Zoom is fine. Perhaps we can start there and go to Teamviewer if necessary.

What days/times are good for you? We can then match that up with my timezone (UTC+10.5).

David

sgor
sgor's picture
Hi

Hi

I am currently UTC-4. On November 1 we will move to UTC-5.

I am retired so it might be easier for me to match your days.  Given a few days notice I can probably match a day you choose.    03:00 UTC until 11:00 UTC would not work for me

 

George

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