Jira crashes with java.io.IOException: Map fail
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Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
Jira Crashes and results in an OutOfMemoryError.
The following appears in the atlassian-jira.log:
Caused by: java.lang.OutOfMemoryError: Map failed
at sun.nio.ch.FileChannelImpl.map0(Native Method)
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:846)
Environment
Jira Data Center
Cause
The OS (unix based) was preventing Jira from using the amount of memory allocated for JAVA.
Resolution
Allow unlimited memory usage for the user running Jira with the following command. This will remove any limits to virtual memory for the Jira process.
ulimit -v unlimitedOne of the ways to do this is to add the line above to the Jira start-up script $JIRA-installation-directory/bin/start-jira.sh.