Processes were previously running successfully but have all started failing. Checking the Process Engine status in Clarity in Administration->Data Administration->Process Engines, all Process Engines are in a stopped status.
Reviewing the bg-ca.logs, the following error may also be found:
ERROR 2020-02-26 09:12:24,726 [Post Condition Transition Pipeline 1 (tenant=clarity)] bpm.engine (clarity:process_admin:.....) Error in pipeline
com.niku.bpm.BpmException: Cannot get DB Connection
at com.niku.bpm.engine.persistence.BpmContext.getContext(BpmContext.java:137)
at com.niku.bpm.engine.persistence.BpmContext.getContext(BpmContext.java:109)
at com.niku.bpm.engine.persistence.BpmContext.getContext(BpmContext.java:97)
at com.niku.bpm.engine.rules.Pipeline.run(Pipeline.java:279)
Caused by: java.sql.SQLException: Connection unavailable
at com.niku.union.persistence.connection.ApacheContext.getConnection(ApacheContext.java:194)
at com.niku.union.persistence.connection.ApacheContext.getConnection(ApacheContext.java:185)
at com.niku.bpm.engine.persistence.BpmContext.getContext(BpmContext.java:132)
... 3 more
Release : All Supported Releases
Component : CA PPM SAAS BUSINESS PROCESS MANAGEMENT
Restart all BG Services for the impacted environment
(SaaS customers, please contact Broadcom support for assistance)