java.io.IOException: Map fail

Problem

Application  receives OutOfMemoryErrors and may crash. The following error appears in the logs:

Caused by: java.lang.OutOfMemoryError: Map failed
	at sun.nio.ch.FileChannelImpl.map0(Native Method)
	at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:846)

Cause

The OS (unix based) was preventing the application from using the amount of memory allocated for JAVA.

Resolution

Allow unlimited memory usage for the user running the application with the following command. This will remove any limits to virtual memory for the application process.

ulimit -v unlimited

One of the ways to do this is to add the above line to the start-up script:

For instance in Fisheye, you would add it to  $FishEye-installation-directory/bin/start.sh.

 

Last modified on Jul 31, 2018

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