tartarus created FLINK-27450: -------------------------------- Summary: [JDK 11] Hive SessionState can't be initialized due to classloader problem Key: FLINK-27450 URL: https://issues.apache.org/jira/browse/FLINK-27450 Project: Flink Issue Type: Improvement Components: Connectors / Hive Affects Versions: 1.15.0, 1.13.1 Reporter: tartarus
If we use jdk11 to run Hive related jobs, there will be a problem that the Hive SessionState cannot be initialized {code:java} java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap') at org.apache.hadoop.hive.ql.session.SessionState.<init>(SessionState.java:394) at org.apache.hadoop.hive.ql.session.SessionState.<init>(SessionState.java:370) at org.apache.flink.table.planner.delegation.hive.HiveParser$HiveParserSessionState.<init>(HiveParser.java:382) at org.apache.flink.table.planner.delegation.hive.HiveParser.startSessionState(HiveParser.java:306) at org.apache.flink.table.planner.delegation.hive.HiveParser.parse(HiveParser.java:205) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:695) at org.apache.flink.connectors.hive.HiveDialectQueryITCase.setup(HiveDialectQueryITCase.java:74) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56) at org.junit.internal.runners.statements.RunBefores.invokeMethod(RunBefores.java:33) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24) at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) at org.junit.runners.ParentRunner.run(ParentRunner.java:413) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) {code} Refer to [HIVE-21237|https://issues.apache.org/jira/browse/HIVE-21237], choose hive version 2.3.7 to support jdk11 We have been running in production for a long time -- This message was sent by Atlassian Jira (v8.20.7#820007)