API requests to SolusVM ended due to timeouts

Symptoms 

API requests to SolusVM, like removal of a VPS, exceed timeouts and end up in error.

Tuning of SolusVM webserver does not help.

Cause

Insufficient values for curl timeouts on the client side.

Resolution

Review the API call code and make sure that values for the following parameters have sufficient values:

CONFIG_TEXT: curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);

Set it as 0 for unlimited values:

CONFIG_TEXT: curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 0);