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After an hour the following error was reported in the log
3/25/20 10:45:56.379 AM GMT [WARN] [C3P0PooledConnectionPoolManager[identityToken->1br0i6ta94qn7u3ftlavz|47a4eee2, dataSourceName->apmDataSource]-HelperThread-#2] [com.mchange.v2.resourcepool.BasicResourcePool] com[email protected]73b922ae -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (3). Last acquisition attempt exception: java.sql.SQLException: ORA-04021: timeout occurred while waiting to lock object
The ORA-04021 exception indicates an issue with the Oracle hosted APM database
Environment
Release : 10.7.0
Component : APM Agents
Resolution
Customer DBA addressed the space resource issue on the node where Oracle was hosted