I am unable to connect DB after upgrading the DB from 12.1 to 12.2.
getting below error.
2019.09.04 08:19:26 ERROR web[][o.s.s.p.Platform] Web server startup failed
java.lang.IllegalStateException: Fail to connect to database
at org.sonar.db.DefaultDatabase.start(DefaultDatabase.java:90)
at org.sonar.core.platform.StartableCloseableSafeLifecyleStrategy.start(StartableCloseableSafeLifecyleStrategy.java:40)
at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:84)
at org.picocontainer.behaviors.AbstractBehavior.start(AbstractBehavior.java:169)
at org.picocontainer.behaviors.Stored$RealComponentLifecycle.start(Stored.java:132)
at org.picocontainer.behaviors.Stored.start(Stored.java:110)
at org.picocontainer.DefaultPicoContainer.potentiallyStartAdapter(DefaultPicoContainer.java:1016)
at org.picocontainer.DefaultPicoContainer.startAdapters(DefaultPicoContainer.java:1009)
at org.picocontainer.DefaultPicoContainer.start(DefaultPicoContainer.java:767)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:135)
at org.sonar.server.platform.platformlevel.PlatformLevel.start(PlatformLevel.java:90)
at org.sonar.server.platform.platformlevel.PlatformLevel1.start(PlatformLevel1.java:160)
at org.sonar.server.platform.Platform.start(Platform.java:211)
at org.sonar.server.platform.Platform.startLevel1Container(Platform.java:170)
at org.sonar.server.platform.Platform.init(Platform.java:86)
at org.sonar.server.platform.web.PlatformServletContextListener.contextInitialized(PlatformServletContextListener.java:43)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4817)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5283)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1423)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1413)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.IllegalStateException: Can not connect to database. Please check connectivity and settings (see the properties prefixed by 'sonar.jdbc.').
at org.sonar.db.DefaultDatabase.checkConnection(DefaultDatabase.java:134)
at org.sonar.db.DefaultDatabase.start(DefaultDatabase.java:87)
... 24 common frames omitted
Caused by: java.sql.SQLException: Cannot create PoolableConnectionFactory (ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist