Hello everybody,
we have a Windows 2012 SP2 on AWS with 64GB. We are running "plenty" of Java applications and others as well. Task manager shows that 22% of the memory is used. We try to start Java applications with Xmx128M or lower and we get "Cannot allocate heap space". How can that be?
I know that 22% may not represent the reality. It may be that more space has been allocated for (Java) applications... but still there is plenty of space free! Could that be a problem related to the way AWS EC2 instances distribute memory... BTW both jdk 8 installed are 64bit, although somebody had incorrectly installed a 32bit jdk at the beginning- now removed. Could it be, that some of the 32bit config (maybe in the registry?) are interfering?
This is a very weird case... Any helps or assumptions are appreciated
Kind regards,
Kostas
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