We have our Dremio instance running on CentOS inn AWS upgraded from 4.0.1 to 4.2.2. After the restart, Dremio refuses to connect on port 9047, and the log contains the following exceptions:
2020-05-05 14:39:32,191 [main] WARN com.dremio.telemetry.api.Telemetry - Failure reading telemetry configuration. Leaving telemetry as is.
java.lang.IllegalArgumentException: resource dremio-telemetry.yaml not found.
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:217)
at com.google.common.io.Resources.getResource(Resources.java:195)
at com.dremio.telemetry.api.Telemetry$1.get(Telemetry.java:90)
at com.dremio.telemetry.api.Telemetry$1.get(Telemetry.java:80)
at com.dremio.telemetry.api.config.AutoRefreshConfigurator.refreshOnce(AutoRefreshConfigurator.java:74)
at com.dremio.telemetry.api.config.AutoRefreshConfigurator.(AutoRefreshConfigurator.java:54)
at com.dremio.telemetry.api.config.AutoRefreshConfigurator.(AutoRefreshConfigurator.java:44)
at com.dremio.telemetry.api.Telemetry.startTelemetry(Telemetry.java:105)
at com.dremio.exec.server.BootStrapContext.(BootStrapContext.java:61)
at com.dremio.dac.daemon.DACDaemonModule.bootstrap(DACDaemonModule.java:197)
at com.dremio.dac.daemon.DACDaemon.(DACDaemon.java:184)
at com.dremio.dac.daemon.DACDaemon.newDremioDaemon(DACDaemon.java:303)
at com.dremio.dac.daemon.DACDaemon.newDremioDaemon(DACDaemon.java:311)
at com.dremio.dac.daemon.DremioDaemon.main(DremioDaemon.java:145)
2020-05-05 14:39:33,082 [main] ERROR ROOT - Dremio is exiting. Failure while starting services.
java.lang.NoClassDefFoundError: com/dremio/exec/store/jdbc/dialect/DremioSqlDialect
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.dremio.common.scanner.persistence.ScanResult.getAnnotatedClasses(ScanResult.java:175)
at com.dremio.exec.catalog.ConnectionReaderImpl.getCandidateSources(ConnectionReaderImpl.java:89)
at com.dremio.exec.catalog.ConnectionReaderImpl.makeReader(ConnectionReaderImpl.java:70)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.dremio.exec.catalog.ConnectionReader.of(ConnectionReader.java:69)
at com.dremio.dac.daemon.DACDaemonModule.build(DACDaemonModule.java:289)
at com.dremio.dac.daemon.DACDaemon.(DACDaemon.java:185)
at com.dremio.dac.daemon.DACDaemon.newDremioDaemon(DACDaemon.java:303)
at com.dremio.dac.daemon.DACDaemon.newDremioDaemon(DACDaemon.java:311)
at com.dremio.dac.daemon.DremioDaemon.main(DremioDaemon.java:145)
Caused by: java.lang.ClassNotFoundException: com.dremio.exec.store.jdbc.dialect.DremioSqlDialect
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
… 15 common frames omitted
Any guidance on these would be greatly appreciated.