Java: Do all processes run under the same JVM?
<p>We have a linux server that starts around 20 java programs. These java programs are all identical, except that they are using a differen port. These programs run fine. However, after a while all 20 programs crash at the exact same time. Each of these programs are allocated 2 gig of memory, by starting them up like this: </p>

<p>java -jar -Xmx 2000m</p>

<p>However, as far as we know, these programs do not get anywhere close near using these amounts of memories. The entire system has 4 gig of memory. </p>

<p>SO, the question is, could on java program be responsible for crashing all 9 other ones? Is the VM shared, so that when it crashes, ALL java programs crash? Is there a log file I could possible check for a reason why java crashed? The java output did not show any error.</p>

<p>EDIT:
The strange thing is that this happened after a longer time, like 3 hours. These 20 processes had been running for quite some time before suddenly ALL crashing at the same time. And why do they ALL crash, if the java runtime starts it's own process for each program?</p>
