你可以看一下我上面贴的那个PR，那个PR实现的功能就是datastream sink to oss。至于写法就是和Datastream sink to
hdfs类似的。
return StreamingFileSink
.forRowFormat(new Path(ossPath), new SimpleStringEncoder("UTF-8"))
.build();
在 2021年8月27日 14:34，Caizhi Weng 写道：
Hi！ 从报错上来看好像是类冲突的问题。不过 oss sink 目前应该也不支持流式写入。 具体是怎么把 datastream 写入 oss
呢？方便的话可以把代码贴一下，帮助大家更好观察问题。 payne_z 于2021年8月27日周五
下午2:02写道： > 当我使用 https://github.com/apache/flink/pull/7798， 这个PR打pacth到flink >
1.11.2，发现写flink通过Datastream写OSS功能并不可用。 > 报错信息如下： > java.lang.RuntimeException:
java.lang.RuntimeException: class >
org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback not >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.GroupMappingServiceProvider
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2624)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.Groups.(Groups.java:106)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.Groups.(Groups.java:101)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.Groups.getUserToGroupsMappingService(Groups.java:448)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:331)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:298)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.doSubjectLogin(UserGroupInformation.java:1780)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.createLoginUser(UserGroupInformation.java:704)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:654)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:565)
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.fs.aliyun.oss.AliyunOSSFileSystem.initialize(AliyunOSSFileSystem.java:336)
> at >
org.apache.flink.fs.osshadoop.OSSFileSystemFactory.create(OSSFileSystemFactory.java:105)
> at >
org.apache.flink.core.fs.PluginFileSystemFactory.create(PluginFileSystemFactory.java:61)
> at >
org.apache.flink.core.fs.FileSystem.getUnguardedFileSystem(FileSystem.java:468)
> at org.apache.flink.core.fs.FileSystem.get(FileSystem.java:389) > at >
org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink$RowFormatBuilder.createBuckets(StreamingFileSink.java:260)
> at >
org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink.initializeState(StreamingFileSink.java:396)
> at >
org.apache.flink.streaming.util.functions.StreamingFunctionUtils.tryRestoreFunction(StreamingFunctionUtils.java:185)
> at >
org.apache.flink.streaming.util.functions.StreamingFunctionUtils.restoreFunctionState(StreamingFunctionUtils.java:167)
> at >
org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.initializeState(AbstractUdfStreamOperator.java:96)
> at >
org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.initializeOperatorState(StreamOperatorStateHandler.java:106)
> at >
org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:258)
> at >
org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:290)
> at >
org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$0(StreamTask.java:479)
> at >
org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.runThrowing(StreamTaskActionExecutor.java:92)
> 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:
class > org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback not >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.security.GroupMappingServiceProvider
> at >
org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2618)
> ... 29 more
