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Java 7 compatibility (G1 crashes when using trove)  XML
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[Post New]01/13/2013 18:44:30
    Subject: Java 7 compatibility (G1 crashes when using trove)
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shortmem

journeyman

Joined: 12/12/2011 07:59:13
Messages: 17
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Hello, I just checked that terracotta 3.7.3 officially supports java 7 update 7!!!

I'm currently running both my app servers and terracotta 3.7.2 with update 10. Both run without problems as long as I don't use the G1 collector.

It seems that there's a G1 bug with jitted code of trove library (I tried 3.0.0 to 3.0.3). Someone else has alredy suffered from it:

G1 BUG

I tried to fill a bug report but oracle's bug database is not working and they'd probably would leave as low priority.

I didn't actually see TC crashing when using G1 collector, just my application code every time a tight-loop calls put on TObjectIntHashMap.

The bug is very easy to reproduce in a standalone test case, just create four or so Threads (each with it's own private map), calling map.put for about 1 million times.

I'm sharing this because on TC 3.7.3 release notes there are no warnings about possible erratic G1 behavior and TC seems to make use of trove internally.
[Post New]01/13/2013 22:46:21
    Subject: Re:Java 7 compatibility (G1 crashes when using trove)
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rajoshi

seraphim

Joined: 07/04/2011 04:36:10
Messages: 1491
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Can you please raise a community JIRA for this here:
https://jira.terracotta.org/jira/browse

Rakesh Joshi
Senior Consultant
Terracotta.
[Post New]02/25/2013 08:22:14
    Subject: Re:Java 7 compatibility (G1 crashes when using trove)
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shortmem

journeyman

Joined: 12/12/2011 07:59:13
Messages: 17
Offline

rajoshi wrote:
Can you please raise a community JIRA for this here:
https://jira.terracotta.org/jira/browse

 


Jira raised: https://jira.terracotta.org/jira/browse/CDV-1651
 
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