"Unavailable" section of the REST API Health Check Report

Products

• CA Automic Workload Automation - Automation Engine

Issue/Introduction

REST API for health check uses the HTTP status code to determine the health status. The  "Unavailable" section in the Response section is optional. This article explains details of the "unavailable" section.

Environment

CA Automic Workload Automation 

Cause

Explanation of "Unavailable" section of REST API Health Check.

Resolution

When a server process starts, it connects to the DB and registers itself in the table MQSRV. Each server process also connects directly to the PWP.
Sometimes a PWP can loose connection to a server process - for example, if the server process crashes or becomes unresponsive for a short period of time. The "Unavailable"  section of the report lists all server processes from the MQSRV table which are currently not connected to the PWP. After a timeout of 10 minutes, an unavailable server process is removed from the MQSRV table.