java寫的flink代碼出現210報錯，具體報錯如下:

Exception in thread "main" java.util.concurrent.ExecutionException: org.apache.flink.runtime.client.JobExecutionException: Job execution failed.at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1717)at org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:74)at org.apache.flink.table.planner.delegation.ExecutorBase.execute(ExecutorBase.java:52)at org.apache.flink.table.api.internal.TableEnvironmentImpl.execute(TableEnvironmentImpl.java:1214)at StreamingJob$.main(StreamingJob.scala:79)at StreamingJob.main(StreamingJob.scala) Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed.at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:147)at org.apache.flink.client.program.PerJobMiniClusterFactory$PerJobMiniClusterJobClient.lambda$getJobExecutionResult$2(PerJobMiniClusterFactory.java:186)at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)at org.apache.flink.runtime.rpc.akka.AkkaInvocationHandler.lambda$invokeRpc$0(AkkaInvocationHandler.java:229)at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)at org.apache.flink.runtime.concurrent.FutureUtils$1.onComplete(FutureUtils.java:892)at akka.dispatch.OnComplete.internal(Future.scala:264)at akka.dispatch.OnComplete.internal(Future.scala:261)at akka.dispatch.japi$CallbackBridge.apply(Future.scala:191)at akka.dispatch.japi$CallbackBridge.apply(Future.scala:188)at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)at org.apache.flink.runtime.concurrent.Executors$DirectExecutionContext.execute(Executors.java:74)at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40)at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248)at akka.pattern.PromiseActorRef.$bang(AskSupport.scala:572)at akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:22)at akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:21)at scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:436)at scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:435)at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)at akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:55)at akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:91)at akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91)at akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91)at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72)at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:90)at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:44)at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Caused by: org.apache.flink.runtime.JobException: Recovery is suppressed by NoRestartBackoffTimeStrategyat org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:116)at org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:78)at org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:192)at org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:185)at org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:179)at org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:503)at org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:386)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:284)at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:199)at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74)at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152)at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)at akka.actor.Actor$class.aroundReceive(Actor.scala:517)at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)at akka.actor.ActorCell.invoke(ActorCell.scala:561)at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)at akka.dispatch.Mailbox.run(Mailbox.scala:225)at akka.dispatch.Mailbox.exec(Mailbox.scala:235)... 4 more Caused by: java.io.IOException: unable to open JDBC writerat org.apache.flink.connector.jdbc.internal.AbstractJdbcOutputFormat.open(AbstractJdbcOutputFormat.java:61)at org.apache.flink.api.java.io.jdbc.JDBCOutputFormat.open(JDBCOutputFormat.java:82)at org.apache.flink.api.java.io.jdbc.JDBCSinkFunction.open(JDBCSinkFunction.java:55)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.StreamSink.open(StreamSink.java:48)at org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:291)at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$0(StreamTask.java:479)at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:47)at org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:475)at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:528)at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:721)at org.apache.flink.runtime.taskmanager.Task.run(Task.java:546)at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.RuntimeException: ru.yandex.clickhouse.except.ClickHouseException: ClickHouse exception, code: 210, host: Desktop, port: 9500; Connect to Desktop:9500 [Desktop/192.168.0.102] failed: Connection refused (Connection refused)at ru.yandex.clickhouse.ClickHouseConnectionImpl.initTimeZone(ClickHouseConnectionImpl.java:99)at ru.yandex.clickhouse.ClickHouseConnectionImpl.<init>(ClickHouseConnectionImpl.java:80)at ru.yandex.clickhouse.ClickHouseDriver.connect(ClickHouseDriver.java:55)at ru.yandex.clickhouse.ClickHouseDriver.connect(ClickHouseDriver.java:47)at ru.yandex.clickhouse.ClickHouseDriver.connect(ClickHouseDriver.java:29)at java.sql.DriverManager.getConnection(DriverManager.java:664)at java.sql.DriverManager.getConnection(DriverManager.java:247)at org.apache.flink.connector.jdbc.internal.connection.SimpleJdbcConnectionProvider.getConnection(SimpleJdbcConnectionProvider.java:54)at org.apache.flink.connector.jdbc.internal.AbstractJdbcOutputFormat.establishConnection(AbstractJdbcOutputFormat.java:66)at org.apache.flink.connector.jdbc.internal.AbstractJdbcOutputFormat.open(AbstractJdbcOutputFormat.java:59)... 13 more Caused by: ru.yandex.clickhouse.except.ClickHouseException: ClickHouse exception, code: 210, host: Desktop, port: 9500; Connect to Desktop:9500 [Desktop/192.168.0.102] failed: Connection refused (Connection refused)at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.getException(ClickHouseExceptionSpecifier.java:89)at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:55)at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:24)at ru.yandex.clickhouse.ClickHouseStatementImpl.getInputStream(ClickHouseStatementImpl.java:633)at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:117)at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:100)at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:95)at ru.yandex.clickhouse.ClickHouseStatementImpl.executeQuery(ClickHouseStatementImpl.java:90)at ru.yandex.clickhouse.ClickHouseConnectionImpl.initTimeZone(ClickHouseConnectionImpl.java:94)... 22 more Caused by: org.apache.http.conn.HttpHostConnectException: Connect to Desktop:9500 [Desktop/192.168.0.102] failed: Connection refused (Connection refused)at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:158)at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)at ru.yandex.clickhouse.ClickHouseStatementImpl.getInputStream(ClickHouseStatementImpl.java:614)... 27 more Caused by: java.net.ConnectException: Connection refused (Connection refused)at java.net.PlainSocketImpl.socketConnect(Native Method)at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)at java.net.Socket.connect(Socket.java:589)at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:74)at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141)... 36 more

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排查辦法:

from clickhouse_driver import Client client = Client(host='127.0.0.1',port='9500',user="default",password="appleyuchi") sql = 'show databases;' ans = client.execute(sql) print(ans)

?

然后運行:

from clickhouse_driver import Client client = Client(host='Desktop',port='9500',user="default",password="appleyuchi") sql = 'show databases;' ans = client.execute(sql) print(ans)

會發現同樣出現210報錯。

說明是clickhouse沒有設置支持外網訪問。

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總結

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