Core dumps are committed to Git

[jacobilsoe]

When Rtc crashes it leaves core dump files (and others) in the working directory. These files are then committed to Git.

[WtfJoke]

I never experienced that. What you mean with rtc crashes? You mean lscm/scm crashes? But why it should leave dump files in the work directory? Usually it has its own directory with log files and so on.

Can you reproduce it? Are these files identifiable (for example with a special name)?

[jacobilsoe]

Yes, I mean scm. I don't know why it left a core dump there. I did not investigate it any further but I will provide more info if it happens again.

[WtfJoke]

Sounds strange... Let me know when you know more details.

[ohumbel]

@jacobilsoe how are those core dump files named? Maybe we could add patterns to the top-level .gitignore we create when starting the migration?

[jacobilsoe]

Just got it again. In both cases the problem was: Detail "java/lang/OutOfMemoryError" "Java heap space"

Here are the files that got committed to Git:

07-10-2015 10:59 774.591.748 core.20151006.115559.7756.0001.dmp
07-10-2015 10:59 774.672.932 core.20151006.115602.7756.0003.dmp
07-10-2015 10:59 54.180.351 heapdump.20151006.115559.7756.0002.phd
07-10-2015 11:00 54.180.351 heapdump.20151006.115602.7756.0005.phd
07-10-2015 11:00 969.457 javacore.20151006.115559.7756.0004.txt
07-10-2015 11:00 948.603 javacore.20151006.115602.7756.0007.txt
07-10-2015 10:59 355.732 Snap.20151006.115559.7756.0006.trc
07-10-2015 10:59 36.244 Snap.20151006.115602.7756.0008.trc

[WtfJoke]

Maybe it helps if you ask for advice on the jazz net forum... I never experienced such an issue. Not sure if they can help you, but at least it would be the place to address this issue.

However I would try to increase the memory of the rtc scm client.
In the scm.ini you can increase -Xmx512m to a value of your desire (-Xmx1024m for example).
Another idea would be to use jdk8 as vm, because it handles memory in a more relaxed way in my opinion (as long as you have enough memory 😅).

Not sure how we should continue with this issue, though.

Either we add .*dmp, *.phd and *.trc to gitignore.
But the .txt files would be still present and Im not sure if we should really check for that filenamepattern.

At the moment I think the best way to solve this is that you add these file extensions in your settings file to the IgnoreFileExtensions --> https://github.com/rtcTo/rtc2git/blob/develop/config.ini.sample#L61 (eg. IgnoreFileExtensions = .dmp, .phd, .trc)

Or what are your thoughts about it?
Maybe @ohumbel has also some idea as well, as soon as he is back from his vacations :)

[WtfJoke]

@jacobilsoe Were you able to solve it using my given workaround or were able to find the reason why you got a memory leak by using jazz forums?

Else I would close this issue during the next days, because I cannot reproduce it.

[jacobilsoe]

Sorry for not getting back on this one. I tried different things and managed to make it somewhat stable. I still had issues now and then though. I ended up manually deleting the dump files from the migrated repo. It is fine with me to close the issue.

[WtfJoke]

Thanks for your feedback. I thought with ignoring them should work out without any problems.