java.io.IOException: Map fail

Cross Product Knowledge

On this page

Still need help?

The Atlassian Community is here for you.

Ask the community

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

Increase the memory usage for the user running the application:

Use sudo command, or switch user to root, and edit /etc/security/limits.conf
Specify the new soft and hard limit for the application user. For example, to set both limits to 64K for user atlbitbucket, you need to specify:

atlbitbucket      soft    nofile  65536
atlbitbucket      hard    nofile  65536

Another alternative is to 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 Jan 25, 2022

Was this helpful?

Yes
No
Provide feedback about this article
Powered by Confluence and Scroll Viewport.