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Max LCDS/Tomcat Heap Size


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I'm trying to figure out how large of a heap size I can set for my LCDS tomcat nodes before I start to see GC performance problems.  We are running 64-bit everything, so theoretical limits aren't a problem.   We are currently running 2GB.

Is anybody running more than 2GB? If so, how much and do you ever see problems with long GCs (or any other issues)?  Anybody know a reason why I couldn't run 4GB?



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