Postgres will not start Error: FATAL: could not create lock file "/var/run/postgresql/.s.PGSQL.5002.lock": Permission denied

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

• service cb-pgsql start ends in failed state
• cb-datagrid is unable to startup
• /var/log/cb/pgsql/startup.log contains

  • FATAL:  could not create lock file "/var/run/postgresql/.s.PGSQL.5002.lock": Permission denied

Environment

• EDR Server: All Supported Versions

Cause

The service cannot access /var/run/postgresql/

Resolution

• Update permissions on /var/run/postgresql/

  • chmod 755 /var/run/postgresql/

  • chown cb:cb /var/run/postgresql