liupc opened a new pull request #10269: [FLINK-14876]Putting xercesImpl related classes into alwaysParentFirstLoaderPatterns to avoid conflicts URL: https://github.com/apache/flink/pull/10269 ## What is the purpose of the change There is a issue when running jobs when including flink-shaded-hadoop-2 package while changing the `hadoop.version` to our cluster hadoop version(2.6), more details see https://issues.apache.org/jira/browse/FLINK-14876 ``` javax.xml.parsers.FactoryConfigurationError: Provider for class javax.xml.parsers.DocumentBuilderFactory cannot be createdjavax.xml.parsers.FactoryConfigurationError: Provider for class javax.xml.parsers.DocumentBuilderFactory cannot be created at javax.xml.parsers.FactoryFinder.findServiceProvider(FactoryFinder.java:311) at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:267) at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:120) at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2412) at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2375) at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2285) at org.apache.hadoop.conf.Configuration.get(Configuration.java:892) at org.apache.hadoop.mapred.JobConf.checkAndWarnDeprecation(JobConf.java:2010) at org.apache.hadoop.mapred.JobConf.<init>(JobConf.java:449) at org.apache.hadoop.mapreduce.Job.getInstance(Job.java:186) at org.apache.hadoop.mapreduce.Job.getInstance(Job.java:167) at org.apache.flink.hadoopcompatibility.scala.HadoopInputs$.readHadoopFile(HadoopInputs.scala:127) at com.github.ehiggs.spark.terasort.FlinkTeraSort$.main(FlinkTeraSort.scala:76) at com.github.ehiggs.spark.terasort.FlinkTeraSort.main(FlinkTeraSort.scala) 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:586) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:448) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:274) at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:746) at org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:273) at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:205) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1009) at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1082) 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:1886) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1082)Caused by: java.lang.RuntimeException: Provider for class javax.xml.parsers.DocumentBuilderFactory cannot be created at javax.xml.parsers.FactoryFinder.findServiceProvider(FactoryFinder.java:308) ... 30 moreCaused by: java.util.ServiceConfigurationError: javax.xml.parsers.DocumentBuilderFactory: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not a subtype at java.util.ServiceLoader.fail(ServiceLoader.java:239) at java.util.ServiceLoader.access$300(ServiceLoader.java:185) at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:376) at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404) at java.util.ServiceLoader$1.next(ServiceLoader.java:480) at javax.xml.parsers.FactoryFinder$1.run(FactoryFinder.java:294) at java.security.AccessController.doPrivileged(Native Method) at javax.xml.parsers.FactoryFinder.findServiceProvider(FactoryFinder.java:289) ... 30 more ``` This PR is to fix this problem by adding xercesImpl related classes into alwaysParentFirstLoaderPatterns. ## Brief change log - Add xercesImpl related classes into alwaysParentFirstLoaderPatterns. ## Verifying this change This change added tests and can be verified as follows: - Manually verified the change by running app in yarn-cluster mode ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable)
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