IllegalAccessError when writing to hive orc table
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Hi,
I’m trying out Flink 1.11 and trying to write data to Hive orc tables, but get stuck with a weird exception. Wonder if anyone had met this before? The Java version is 1.8.0_151. java.lang.IllegalAccessError: tried to access class org.apache.flink.streaming.api.functions.sink.filesystem.DefaultBucketFactoryImpl from class org.apache.flink.streaming.api.functions.sink.filesystem.HadoopPathBasedBulkFormatBuilder at org.apache.flink.streaming.api.functions.sink.filesystem.HadoopPathBasedBulkFormatBuilder.<init>(HadoopPathBasedBulkFormatBuilder.java:70) at org.apache.flink.connectors.hive.HiveTableSink.consumeDataStream(HiveTableSink.java:197) at org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecLegacySink.translateToPlanInternal(StreamExecLegacySink.scala:114) at org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecLegacySink.translateToPlanInternal(StreamExecLegacySink.scala:48) at org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:58) at org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecLegacySink.translateToPlan(StreamExecLegacySink.scala:48) at org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:67) at org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:66) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.Iterator$class.foreach(Iterator.scala:891) at scala.collection.AbstractIterator.foreach(Iterator.scala:1334) at scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at scala.collection.AbstractIterable.foreach(Iterable.scala:54) at scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at scala.collection.AbstractTraversable.map(Traversable.scala:104) at org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:66) at org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:166) at org.apache.flink.table.api.internal.TableEnvironmentImpl.translate(TableEnvironmentImpl.java:1248) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeInternal(TableEnvironmentImpl.java:694) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeOperation(TableEnvironmentImpl.java:781) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:684) at com.netease.nie.gdc.streamfly.JobEntry.main(JobEntry.java:62) 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 org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:288) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:198) at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:149) at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:699) at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:232) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:916) at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:992) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1707) at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:992) Best, Paul Lam
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Re: IllegalAccessError when writing to hive orc table
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Hi, It looks really weird. Is there any possibility of class conflict? How do you manage your dependencies? Do you download bundle-jar to lib? [1] [1] https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/table/hive/#using-bundled-hive-jar Best, Jingsong On Mon, Jul 13, 2020 at 5:48 PM Paul Lam <[hidden email]> wrote:
Best, Jingsong Lee |
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Hi Jingsong,
Thanks to your pointer, I checked the dependencies and found out that it’s caused by the classloaders. In my deployment, the hive connector (and its orc dependencies), which contains `DefaultBucketFactoryImpl`, was packaged into the job uber jar. On the other hand, the flink runtime, which contains `HadoopPathBasedBulkFormatBuilder ` is located in the lib folder. Since the two jars are loaded by different class loaders, the classes are considered under different packages. That’s why an `java.lang.IllegalAccessError` occurred. BTW, the artifact links of the hive connectors seem to be broken. Should we use https://repo.maven.apache.org/maven2/ instead? Best, Paul Lam
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Re: IllegalAccessError when writing to hive orc table
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Hi Paul, > In my deployment, the hive connector (and its orc dependencies), which contains `DefaultBucketFactoryImpl`, was packaged into the job uber jar. On the other hand, the flink runtime, which contains `HadoopPathBasedBulkFormatBuilder ` is located in the lib folder. Since the two jars are loaded by different class loaders, the classes are considered under different packages. That’s why an `java.lang.IllegalAccessError` occurred. Thanks for your analysis, hive contains `HadoopPathBasedBulkFormatBuilder` and runtime contains `DefaultBucketFactoryImpl`. Looks like it is dangerous to use package constraints for different modules. It is better to use public. CC: [hidden email] > the artifact links of the hive connectors seem to be broken. Should we use https://repo.maven.apache.org/maven2/ instead? Yes, we should use new URLs. I created https://issues.apache.org/jira/browse/FLINK-18593 JIRA for tracking this. Best, Jingsong On Tue, Jul 14, 2020 at 12:15 PM Paul Lam <[hidden email]> wrote:
Best, Jingsong Lee |
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