Master SolusVM fails to connect to the slave node: Debug Data: 5 could not send the HTTP request

Symptoms 

Master SolusVM fails to connect to the slave node:

SVM_ERROR: Debug Data: 5 could not send the HTTP request: Could not execite the request: couldn't connect to host

Webserver on the slave node is not running:

# service svmstack-nginx status
nginx dead but pid file exists

Cause

Webservice is not running on the slave node and requests cannot be served

Resolution

Note: The article is applicable for the cases with ERROR: 5 code error only. If the code error is different, search for the solution in this hub article

1. Connect to the slave node via SSH
2. Start svmstack-nginx service

   # service svmstack-nginx restart
   # service svmstack-fpm restart

3. Fix the errors if the service fails to start. If you are not able to fix errors on your own, consider contact SolusVM support.