discovery_server not starting

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)
• CA Unified Infrastructure Management On-Premise (Nimsoft / UIM)
• CA Unified Infrastructure Management SaaS (Nimsoft / UIM)

Issue/Introduction

• Recently we had a situation where we were locked out from our DB server and data_engine was not able to connect to the DB.

• With the help of our DBA we were able to identify that discovery_server was sending the wrong connection string and due to the number of failed attempts we were locked out. 

• Now the password was reset and the data_engine is again able to connect to the DB but discovery_server still fails.

Environment

• Release: DX UIM 20.4 or higher
• Component: UIM - DISCOVERY_SERVER

Resolution

Increase the java min/max memory settings to these values:

<startup>
   <opt>
      java_opts = -server -XX:ErrorFile=./hs_err_pid.log
      java_mem_max = -Xmx4096m
      java_mem_init = -Xms2048m
   </opt>
</startup>

Then do a cold start of the discovery_server (Deactivate-Activate).