First guess: the Linux "OOM killer". When memory gets desperately tight, the kernel picks a victim process and terminates it to recover some memory. Large processes lacking controlling terminals, such as Tomcat, tend to be the preferred victims. Check your OS log files to see if there are signs of severe memory pressure. You could also investigate by experiment: try to provide a lot more swap space and see if the problem is alleviated.
If this is it, the real cure is more memory. -- Mark H. Wood, Lead System Programmer [EMAIL PROTECTED] Typically when a software vendor says that a product is "intuitive" he means the exact opposite.
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