'OutOfMemoryError' in On-Premise Search

Overview

This article provides the diagnosis and resolution for the OutOfMemoryError in the On-Premise search.

Diagnosis

You will see messages like the following in the sbs.log:

Caused by: java.lang.OutOfMemoryError: Map failed at sun.nio.ch.FileChannelImpl.map0(Native Method) at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:885)

Resolution

Increase the memory limits on the instance for the user limits (ulimit) and the kernel parameter vm.max_map_count.