我正在尝试读取从Google Cloud Storage的CSV文件到Flink Repl。由于我不是很精通Flink，因此我更喜欢在REPL中工作，以便一次可以解决一个错误，而不是将代码放入罐子中，然后不知道从哪里开始所有错误。
在此示例中，我将在Google存储中使用公开可用的Landsat数据。
我创建了一个DataProc群集，并添加了Google Cloud提供的BASH脚本，以在集群创建时间安装Flink。脚本可以在这里找到。
由于我使用的是DataProc群集，因此我只需要将GCS连接jar添加到ClassPath。所以我像这样启动了弗林克录音：
/usr/lib/flink/bin/start-scala-shell.sh yarn -a /usr/lib/hadoop/lib/gcs-connector-hadoop2-1.9.10.jar
i然后使用此代码在repled中导入Google Cloud Storage：
import com.google.cloud.hadoop.fs.gcs
最后，我尝试将公开可用的文件读为文本文件，并获取以下错误：
val landsaturl = "gs://gcp-public-data-landsat/LC08/01/001/002/LC08_L1GT_001002_20160817_20170322_01_T2/LC08_L1GT_001002_20160817_20170322_01_T2_ANG.txt"
landsat.first(1).print()
2018-12-17 19:10:44,210 INFO org.apache.flink.api.java.ExecutionEnvironment - The job has 0 registered types and 0 default Kryo serializers
2018-12-17 19:10:44,210 WARN org.apache.flink.configuration.Configuration - Config uses deprecated configuration key 'jobmanager.rpc.address' instead of proper key 'rest.address'
2018-12-17 19:10:44,210 INFO org.apache.flink.runtime.rest.RestClient - Rest client endpoint started.
2018-12-17 19:10:46,091 INFO org.apache.flink.client.program.rest.RestClusterClient - Submitting job 7aefc693e7911bd9ef80c3ebcf6a8343 (detached: false).
2018-12-17 19:10:46,091 INFO org.apache.flink.client.program.rest.RestClusterClient - Requesting blob server port.
2018-12-17 19:11:46,146 INFO org.apache.flink.runtime.rest.RestClient - Shutting down rest endpoint.
2018-12-17 19:11:46,148 INFO org.apache.flink.runtime.rest.RestClient - Rest endpoint shutdown complete.
org.apache.flink.client.program.ProgramInvocationException: Could not retrieve the execution result.
at org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:258)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:464)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:452)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:427)
at org.apache.flink.client.RemoteExecutor.executePlanWithJars(RemoteExecutor.java:216)
at org.apache.flink.client.RemoteExecutor.executePlan(RemoteExecutor.java:193)
at org.apache.flink.api.java.RemoteEnvironment.execute(RemoteEnvironment.java:173)
at org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:816)
at org.apache.flink.api.java.DataSet.collect(DataSet.java:413)
at org.apache.flink.api.java.DataSet.print(DataSet.java:1652)
at org.apache.flink.api.scala.DataSet.print(DataSet.scala:1726)
... 30 elided
Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to submit JobGraph.
at org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$5(RestClusterClient.java:357)
at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:870)
at java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:852)
at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
at org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$5(FutureUtils.java:214)
at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
at org.apache.flink.runtime.rest.RestClient.lambda$submitRequest$1(RestClient.java:195)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.util.concurrent.CompletionException: org.apache.flink.runtime.concurrent.FutureUtils$RetryException: Could not complete the operation. Number of retries has been exhausted.
at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
at java.util.concurrent.CompletableFuture.biApply(CompletableFuture.java:1088)
at java.util.concurrent.CompletableFuture$BiApply.tryFire(CompletableFuture.java:1070)
... 21 more
Caused by: org.apache.flink.runtime.concurrent.FutureUtils$RetryException: Could not complete the operation. Number of retries has been exhausted.
... 19 more
Caused by: java.util.concurrent.CompletionException: java.net.ConnectException: Connection refused: cluster-****
at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:943)
at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
... 16 more
Caused by: java.net.ConnectException: Connection refused: cluster-****
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.flink.shaded.netty4.io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281)
... 7 more
我是否错过了步骤，还是在补充中无法做到的事情，只能用一个胖罐来完成并指定与pom.xml中的Google Cloud Storage相关的内容？
您需要使用Flink HDFS连接器，因为GCS连接器实现HDFS接口。