Issue: After you deploy Advanced Authentication on Kubernetes local cluster, the Dashboard page on the Advanced Authentication Administration portal displays empty widgets and an error message, Unknown server error.
Reason: This issue might occur due to low mmap count in the docker host machine and this might result in out of memory exceptions.
Workaround: Run the following command as the root user to increase the mmap count limit:
sysctl -w vm.max_map_count=262144
To set the mmap count permanently, update the vm.max_map_count setting in /etc/sysctl.conf. Later run the following command to verify the count after reboot: