Parsing error OpenJDK1.8.0

Hi Chewiebug,

I got his parsing error (using 1.34-SNAPSHOT) on OpenJDK 1.8.:

Jul 18, 2014 6:41:48 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0G1 read
WARNING: com.tagtraum.perf.gcviewer.imp.ParseException: java.lang.ArrayIndexOutOfBoundsException: 49 Line 7038: 1609.236: [GC pause (G1 Evacuation Pause) (young)
Jul 18, 2014 6:41:48 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0G1 read
WARNING: com.tagtraum.perf.gcviewer.imp.UnknownGcTypeException: Unknown gc type: '' Line 7055: , 0.5996270 secs]

The problem is that new logging default options have a reason associated with each GC pause, in this case (G1 Evacuation Pause). The parser is not able ignore these reasons.

839.770: [GC pause (G1 Evacuation Pause) (young)

Removing the reason, fixes the problem.

Thanks,
Jayneel

[chewiebug]

Hi Jayneel,

Hmm, GCViewer should be able to parse the reasons in the latest version.
Could you please make sure, that you download
https://github.com/chewiebug/GCViewer/wiki/Changelog the latest
version (even if you alread have 1.34-SNAPSHOT - there are many
1.34-SNAPSHOT versions)?

Please tell me, what a fresh download of GCViewer does with your log file.

Best regards,
Jörg

Hi Jörg,

I downloaded the snapshot today and tried it again. Gcviewer cannot handle it. I had to remove the reasons for GC pause to make it work.

Regards,
Jayneel

[chewiebug]

Hi Jayneel,

Thanks for checking! Could you please send me a sample of the log that can't be parsed?

Best regards,
Jörg

-------- Ursprüngliche Nachricht --------
Von: jayneelgandhi notifications@github.com
Gesendet: 21. Juli 2014 20:47:08 MESZ
An: chewiebug/GCViewer GCViewer@noreply.github.com
CC: chewiebug gcviewer@gmx.ch
Betreff: Re: [GCViewer] Parsing error OpenJDK1.8.0 (#105)

Hi Jörg,

I downloaded the snapshot today and tried it again. Gcviewer cannot handle it. I had to remove the reasons for GC pause to make it work.

Regards,
Jayneel

---

Reply to this email directly or view it on GitHub:
#105 (comment)

Hi Jörg,

I have uploaded a part of the log file here: http://pages.cs.wisc.edu/~jayneel/error.log

This should recreate the problem. There are a lot different reasons why a young generation or mixed generation pauses occur. The log file only gives one of the reasons. I had cut it down due the size of the log file. If you remove from the log file I provided, "(G1 Evacuation Pause)", then it parses fine.

Regards,
Jayneel

[chewiebug]

Hi Jayneel,

Thanks for the sample log. I have been able to reproduce the problem and provide a fix. Reasons in GC events were already supported before, but not in conjunction with -XX:+PrintTenuringDistribution. Now they should be.

Does the latest version of GCViewer now parse your log?

Best regards,
Jörg

Hi Jörg,

Thanks for fixing this problem so quickly. It works nicely now.

Regards,
Jayneel

[chewiebug]

Hi Jayneel,

Thank you very much for reporting and testing this bug!

Best regards,
Jörg