我正在运行flink 1.6.1的单节点flink群集上运行一个字数计算示例
并不断收到此错误。
我正在使用Beam版本2.8.0。
错误
jobmanager_1 | 2018-10-28 07:20:41,401 ERROR org.apache.flink.runtime.webmonitor.handlers.JarRunHandler - Exception occurred in REST handler.
jobmanager_1 | org.apache.flink.runtime.rest.handler.RestHandlerException: org.apache.flink.client.program.ProgramInvocationException: The main method caused an error.
jobmanager_1 | at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.lambda$handleRequest$7(JarRunHandler.java:151)
jobmanager_1 | at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:870)
jobmanager_1 | at java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:852)
jobmanager_1 | at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
jobmanager_1 | at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1595)
jobmanager_1 | at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39)
jobmanager_1 | at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415)
jobmanager_1 | at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
jobmanager_1 | at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
jobmanager_1 | at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
jobmanager_1 | at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
jobmanager_1 | Caused by: java.util.concurrent.CompletionException: org.apache.flink.client.program.ProgramInvocationException: The main method caused an error.
jobmanager_1 | at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.lambda$getJobGraphAsync$10(JarRunHandler.java:228)
jobmanager_1 | at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
jobmanager_1 | ... 6 more
jobmanager_1 | Caused by: org.apache.flink.client.program.ProgramInvocationException: The main method caused an error.
jobmanager_1 | at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:546)
jobmanager_1 | at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:421)
jobmanager_1 | at org.apache.flink.client.program.OptimizerPlanEnvironment.getOptimizedPlan(OptimizerPlanEnvironment.java:83)
jobmanager_1 | at org.apache.flink.client.program.PackagedProgramUtils.createJobGraph(PackagedProgramUtils.java:74)
jobmanager_1 | at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.lambda$getJobGraphAsync$10(JarRunHandler.java:226)
jobmanager_1 | ... 7 more
jobmanager_1 | Caused by: java.lang.IllegalArgumentException: No Runner was specified and the DirectRunner was not found on the classpath.
jobmanager_1 | Specify a runner by either:
jobmanager_1 | Explicitly specifying a runner by providing the 'runner' property
jobmanager_1 | Adding the DirectRunner to the classpath
jobmanager_1 | Calling 'PipelineOptions.setRunner(PipelineRunner)' directly
jobmanager_1 | at org.apache.beam.sdk.options.PipelineOptions$DirectRunner.create(PipelineOptions.java:300)
jobmanager_1 | at org.apache.beam.sdk.options.PipelineOptions$DirectRunner.create(PipelineOptions.java:286)
jobmanager_1 | at org.apache.beam.sdk.options.ProxyInvocationHandler.returnDefaultHelper(ProxyInvocationHandler.java:592)
jobmanager_1 | at org.apache.beam.sdk.options.ProxyInvocationHandler.getDefault(ProxyInvocationHandler.java:533)
jobmanager_1 | at org.apache.beam.sdk.options.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:158)
jobmanager_1 | at org.apache.beam.sdk.options.PipelineOptionsValidator.validate(PipelineOptionsValidator.java:97)
jobmanager_1 | at org.apache.beam.sdk.options.PipelineOptionsValidator.validate(PipelineOptionsValidator.java:47)
jobmanager_1 | at org.apache.beam.sdk.PipelineRunner.fromOptions(PipelineRunner.java:44)
jobmanager_1 | at org.apache.beam.sdk.Pipeline.create(Pipeline.java:145)
jobmanager_1 | at com.rnd.beam.PipelineDataHandler.runPipeline(PipelineDataHandler.java:75)
jobmanager_1 | at com.rnd.beam.PipelineDataHandler.main(PipelineDataHandler.java:29)
jobmanager_1 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
jobmanager_1 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
jobmanager_1 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
jobmanager_1 | at java.lang.reflect.Method.invoke(Method.java:498)
jobmanager_1 | at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:529)
jobmanager_1 | ... 11 more
主班 `
public class PipelineDataHandler {
public static void main(String[] args) {
PipelineOptions options = PipelineOptionsFactory.create();
Pipeline p = Pipeline.create(options);
counter.inc();
p.apply(Create.of(LINES)).setCoder(StringUtf8Coder.of())
.apply(
FlatMapElements.into(TypeDescriptors.strings())
.via((String word) -> Arrays.asList(word.split("[^\\p{L}]+"))))
// We use a Filter transform to avoid empty word
.apply(Filter.by((String word) -> !word.isEmpty()))
.apply(Count.perElement())
.apply(
MapElements.into(TypeDescriptors.strings())
.via(
(KV<String, Long> wordCount) ->
wordCount.getKey() + ": " + wordCount.getValue()))
.apply(TextIO.write().to("wordcounts"));
p.run().waitUntilFinish();
}
}
`
渐变文件
`
repositories {
jcenter()
mavenLocal()
mavenCentral()
}
apply plugin: 'org.owasp.dependencycheck'
apply plugin: 'application'
apply plugin: 'com.github.johnrengelman.shadow'
mainClassName = 'com.rnd.beam.PipelineDataHandler' //com/rnd/beam/PipelineDataHandler
sourceCompatibility = 1.8
dependencies {
compile('org.apache.beam:beam-sdks-java-core:2.8.0')
compile('org.apache.beam:beam-runners-flink_2.11:2.8.0')
// testCompile('org.apache.beam:beam-runners-direct-java:2.8.0')
testCompile('org.testng:testng:6.14.+')
}
jar {
manifest {
attributes(
'Class-Path': configurations.compile.collect { it.getName() }.join(' '),
'Main-Class': 'com.rnd.beam.PipelineDataHandler'
)
}
}
`
答案 0 :(得分：0)
您必须以pipleline指定流道。有两种设置方法，一种是使用Attempted to load class "IntlTimeZone" from the global namespace. Did you forget a "use" statement?方法设置要使用的Beam Runner，另一种方法是在命令行，例如：
pipeline.setRunner()您的代码应如下所示：
java -jar your_application.jar --runner=FlinkRunner