PSQL exception

Exception stack

The connection attempt failed because Exception: java.net.UnknownHostException: svmk_postgres_1
Stack Trace:

java.net.UnknownHostException: svmk_postgres_1
	at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:572)
	at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327)
	at java.base/java.net.Socket.connect(Socket.java:633)
	at java.base/java.net.Socket.connect(Socket.java:583)
	at java.base/java.net.Socket.(Socket.java:507)
	at java.base/java.net.Socket.(Socket.java:287)
	at org.postgresql.PG_Stream.(PG_Stream.java:38)
	at org.postgresql.jdbc1.AbstractJdbc1Connection.openConnection(AbstractJdbc1Connection.java:154)
	at org.postgresql.Driver.connect(Driver.java:120)
	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681)
	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:190)
	at paulb.catwalk3.server.postgresql.PostgreSQLSession.open(PostgreSQLSession.java:87)
	at paulb.catwalk3.server.BrowserServlet.openSession(BrowserServlet.java:26)
	at paulb.catwalk3.server.BrowserServlet.processRequest(BrowserServlet.java:32)
	at paulb.catwalk3.server.GenericServlet.internalProcessRequest(GenericServlet.java:86)
	at paulb.catwalk3.server.GenericServlet.doGet(GenericServlet.java:54)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.base/java.lang.Thread.run(Thread.java:840)
End of Stack Trace

	at org.postgresql.jdbc1.AbstractJdbc1Connection.openConnection(AbstractJdbc1Connection.java:165)
	at org.postgresql.Driver.connect(Driver.java:120)
	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681)
	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:190)
	at paulb.catwalk3.server.postgresql.PostgreSQLSession.open(PostgreSQLSession.java:87)
	at paulb.catwalk3.server.BrowserServlet.openSession(BrowserServlet.java:26)
	at paulb.catwalk3.server.BrowserServlet.processRequest(BrowserServlet.java:32)
	at paulb.catwalk3.server.GenericServlet.internalProcessRequest(GenericServlet.java:86)
	at paulb.catwalk3.server.GenericServlet.doGet(GenericServlet.java:54)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.base/java.lang.Thread.run(Thread.java:840)

Debug log

Creating new session: paulb.catwalk3.server.postgresql.PostgreSQLSession
Content type: text/html; charset=UTF-8
Opening session: username=svmk database=svmk_postgres_1/svmk