java run out of memory issue

Question

I have a jar file running on an amazon-ec2-m1.large instance with linux 64bit operating system. I run out of memory after different hours, usually between 2-4, although in m

Answer 1

If you have more physical ram available use that . It seems that the heap size allocated is only 1656 mb which perhaps is not enough. Try running java jar file with two switches -xmx4096mb and -xms 2048 Then monitor the usage , perhaps the memory requirement is too large for your application , if you still run out of memory after sometime then it needs further investigation to check if your code is leaking memory. Hope this helps , let me know if you need more clarification