API Developer Portal: Healthcheck URL fails intermittently
Article ID: 131946
CA API Developer Portal
CA API Management SaaS
When accessing the healthcheck URL (https://<hostname>/portalhealth) of the API Developer Portal, "200 OK" and "500 Internal Server Error" will be alternately returned for each access.
API Portal 4.2.x
The cause is often a network/compatibility issue between the load balancer and Portal node when IPv6 is involved.
The workaround is to perform the following steps:
- Login to the Portal server via SSH
- Add the following line to the /etc/sysctl.conf file: net.ipv6.conf.all.disable_ipv6 = 1
- Comment out the lines related to IPv6 from /etc/hosts file, such as this example: #::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
- Reboot the operating system (full appliance reboot) so the changes will take effect on the network interface.