【发布时间】：2017-04-13 02:32:27
【问题描述】：
是否可以使用 Apache Flink 自带的 BucketingSink 将数据写入 s3？
我尝试了几种 URL 组合，但我似乎无法使用 s3 获得任何结果
例如s3://bucket/path/to/文件夹
部署到 EMR 5.4.0 时我可以写入 hdfs，但不能写入 s3。
文档没有提到 S3 作为潜在的集成，但我假设它是本机支持的。
https://ci.apache.org/projects/flink/flink-docs-release-1.2/dev/connectors/filesystem_sink.html
如果我使用 s3a:// url 格式，我会收到以下错误
java.lang.NoSuchMethodError: org.apache.http.params.HttpConnectionParams.setSoKeepalive(Lorg/apache/http/params/HttpParams;Z)V
at com.amazonaws.http.HttpClientFactory.createHttpClient(HttpClientFactory.java:96)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:187)
at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:136)
at com.amazonaws.services.s3.AmazonS3Client.<init>(AmazonS3Client.java:394)
at com.amazonaws.services.s3.AmazonS3Client.<init>(AmazonS3Client.java:374)
at com.amazonaws.services.s3.AmazonS3Client.<init>(AmazonS3Client.java:356)
at org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:235)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2717)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:93)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2751)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2733)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:377)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
at org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.initFileSystem(BucketingSink.java:417)
at org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.initializeState(BucketingSink.java:351)
at org.apache.flink.streaming.api.functions.util.StreamingFunctionUtils.tryRestoreFunction(StreamingFunctionUtils.java:178)
at org.apache.flink.streaming.api.functions.util.StreamingFunctionUtils.restoreFunctionState(StreamingFunctionUtils.java:160)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.initializeState(AbstractUdfStreamOperator.java:106)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:225)
at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeOperators(StreamTask.java:666)
at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:654)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:257)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:655)
at java.lang.Thread.run(Thread.java:745)
【问题讨论】：