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jvm 2g limit

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很好的討論

This is a problem with
1) Linux OS assumptions and
2) 32 bit systems. 32 bit systems will have addressable process space at the 4gig layer whilst the Linux OS assumes the 1/3 kernel/process configuration. Several solutions:

a) Get a 64-bit system and JVM like Sun's or IBM's on Solaris/AIX,
b) Tier out processing to multiple JVMs using MQ or J2EE remote structures, or RMI for that matter where you can allocate 3 gigs to each,
c) Implement smart caching for objects if applicable to your usage.

http://forum.java.sun.com/thread.jspa?forumID=37&threadID=541208

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