sql - 如何在 flink 程序中加载 udf jar

Question

我们在开始作业时使用每个作业来加载 udf jar。我们的 jar 文件在另一个路径中，但不在 flink 的 lib 路径中。在main函数中，我们使用classLoader通过jar路径加载jar文件。但是当作业开始运行时它会报告以下错误。如果 jar 文件在 lib 中，则一切正常。但是我们的 udf jar 文件是在一个特殊的路径中管理的。如何在仅提供 jar 路径的情况下在 flink 程序中加载 udf jar？

org.apache.flink.api.common.InvalidProgramException: Table program cannot be compiled. This is a bug. Please file an issue.
at org.apache.flink.table.codegen.Compiler$class.compile(Compiler.scala:36)
at org.apache.flink.table.runtime.CRowProcessRunner.compile(CRowProcessRunner.scala:35)
at org.apache.flink.table.runtime.CRowProcessRunner.open(CRowProcessRunner.scala:49)
at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:36)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:102)
at org.apache.flink.streaming.api.operators.ProcessOperator.open(ProcessOperator.java:56)
at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:424)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:290)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:723)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.codehaus.commons.compiler.CompileException: Line 5, Column 1: Cannot determine simple type name "com"
at org.codehaus.janino.UnitCompiler.compileError(UnitCompiler.java:11877)
at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6758)
at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6519)
at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6532)
at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6532)
at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6532)
at org.codehaus.janino.UnitCompiler.getReferenceType(UnitCompiler.java:6532)
at org.codehaus.janino.UnitCompiler.getType2(UnitCompiler.java:6498)
at org.codehaus.janino.UnitCompiler.access$14000(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$22$1.visitReferenceType(UnitCompiler.java:6405)
at org.codehaus.janino.UnitCompiler$22$1.visitReferenceType(UnitCompiler.java:6400)
at org.codehaus.janino.Java$ReferenceType.accept(Java.java:3983)
at org.codehaus.janino.UnitCompiler$22.visitType(UnitCompiler.java:6400)
at org.codehaus.janino.UnitCompiler$22.visitType(UnitCompiler.java:6393)
at org.codehaus.janino.Java$ReferenceType.accept(Java.java:3982)
at org.codehaus.janino.UnitCompiler.getType(UnitCompiler.java:6393)
at org.codehaus.janino.UnitCompiler.access$1300(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$25.getType(UnitCompiler.java:8206)
at org.codehaus.janino.UnitCompiler.getType2(UnitCompiler.java:6798)
at org.codehaus.janino.UnitCompiler.access$14500(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$22$2$1.visitFieldAccess(UnitCompiler.java:6423)
at org.codehaus.janino.UnitCompiler$22$2$1.visitFieldAccess(UnitCompiler.java:6418)
at org.codehaus.janino.Java$FieldAccess.accept(Java.java:4365)
at org.codehaus.janino.UnitCompiler$22$2.visitLvalue(UnitCompiler.java:6418)
at org.codehaus.janino.UnitCompiler$22$2.visitLvalue(UnitCompiler.java:6414)
at org.codehaus.janino.Java$Lvalue.accept(Java.java:4203)
at org.codehaus.janino.UnitCompiler$22.visitRvalue(UnitCompiler.java:6414)
at org.codehaus.janino.UnitCompiler$22.visitRvalue(UnitCompiler.java:6393)
at org.codehaus.janino.Java$Rvalue.accept(Java.java:4171)
at org.codehaus.janino.UnitCompiler.getType(UnitCompiler.java:6393)
at org.codehaus.janino.UnitCompiler.getType2(UnitCompiler.java:6780)
at org.codehaus.janino.UnitCompiler.access$14300(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$22$2$1.visitAmbiguousName(UnitCompiler.java:6421)
at org.codehaus.janino.UnitCompiler$22$2$1.visitAmbiguousName(UnitCompiler.java:6418)
at org.codehaus.janino.Java$AmbiguousName.accept(Java.java:4279)
at org.codehaus.janino.UnitCompiler$22$2.visitLvalue(UnitCompiler.java:6418)
at org.codehaus.janino.UnitCompiler$22$2.visitLvalue(UnitCompiler.java:6414)
at org.codehaus.janino.Java$Lvalue.accept(Java.java:4203)
at org.codehaus.janino.UnitCompiler$22.visitRvalue(UnitCompiler.java:6414)
at org.codehaus.janino.UnitCompiler$22.visitRvalue(UnitCompiler.java:6393)
at org.codehaus.janino.Java$Rvalue.accept(Java.java:4171)
at org.codehaus.janino.UnitCompiler.getType(UnitCompiler.java:6393)
at org.codehaus.janino.UnitCompiler.findIMethod(UnitCompiler.java:8960)
at org.codehaus.janino.UnitCompiler.compileGet2(UnitCompiler.java:4988)
at org.codehaus.janino.UnitCompiler.access$9100(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$16.visitMethodInvocation(UnitCompiler.java:4452)
at org.codehaus.janino.UnitCompiler$16.visitMethodInvocation(UnitCompiler.java:4425)
at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:5128)
at org.codehaus.janino.UnitCompiler.compileGet(UnitCompiler.java:4425)
at org.codehaus.janino.UnitCompiler.compileGetValue(UnitCompiler.java:5589)
at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:3810)
at org.codehaus.janino.UnitCompiler.access$5900(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$13.visitMethodInvocation(UnitCompiler.java:3788)
at org.codehaus.janino.UnitCompiler$13.visitMethodInvocation(UnitCompiler.java:3760)
at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:5128)
at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:3760)
at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:2363)
at org.codehaus.janino.UnitCompiler.access$1800(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$6.visitExpressionStatement(UnitCompiler.java:1497)
at org.codehaus.janino.UnitCompiler$6.visitExpressionStatement(UnitCompiler.java:1490)
at org.codehaus.janino.Java$ExpressionStatement.accept(Java.java:2929)
at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:1490)
at org.codehaus.janino.UnitCompiler.compileStatements(UnitCompiler.java:1570)
at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:3398)
at org.codehaus.janino.UnitCompiler.compileDeclaredMethods(UnitCompiler.java:1360)
at org.codehaus.janino.UnitCompiler.compileDeclaredMethods(UnitCompiler.java:1333)
at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:825)
at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:435)
at org.codehaus.janino.UnitCompiler.access$400(UnitCompiler.java:218)
at org.codehaus.janino.UnitCompiler$2.visitPackageMemberClassDeclaration(UnitCompiler.java:414)
at org.codehaus.janino.UnitCompiler$2.visitPackageMemberClassDeclaration(UnitCompiler.java:409)
at org.codehaus.janino.Java$PackageMemberClassDeclaration.accept(Java.java:1417)
at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:409)
at org.codehaus.janino.UnitCompiler.compileUnit(UnitCompiler.java:381)
at org.codehaus.janino.SimpleCompiler.cook(SimpleCompiler.java:237)
at org.codehaus.janino.SimpleCompiler.compileToClassLoader(SimpleCompiler.java:466)
at org.codehaus.janino.SimpleCompiler.cook(SimpleCompiler.java:216)
at org.codehaus.janino.SimpleCompiler.cook(SimpleCompiler.java:207)
at org.codehaus.commons.compiler.Cookable.cook(Cookable.java:80)
at org.codehaus.commons.compiler.Cookable.cook(Cookable.java:75)
at org.apache.flink.table.codegen.Compiler$class.compile(Compiler.scala:33)
... 9 more

标签： sqljarapache-flinkuser-defined-functions