Hi Nick,
You can try "new Path("hdfs:///tmp/auditlog/")". There is one additional /
after hdfs://, which is a protocol name.
Best,
Jingsong Lee
On Fri, Mar 20, 2020 at 3:13 AM Nick Bendtner <buggi...@gmail.com> wrote:
> Hi guys,
> I am using flink version 1.7.2.
> I am trying to write to hdfs sink from my flink job. I setup HADOOP_HOME.
> Here is the debug log for this :
>
> 2020-03-19 18:59:34,316 DEBUG org.apache.flink.runtime.util.HadoopUtils
> - Cannot find hdfs-default configuration-file path in Flink
> config.
> 2020-03-19 18:59:34,317 DEBUG org.apache.flink.runtime.util.HadoopUtils
> - Cannot find hdfs-site configuration-file path in Flink config.
> 2020-03-19 18:59:34,317 DEBUG org.apache.flink.runtime.util.HadoopUtils
> - Adding /home/was/HDFSConf/conf/core-site.xml to hadoop
> configuration
> 2020-03-19 18:59:34,317 DEBUG org.apache.flink.runtime.util.HadoopUtils
> - Adding /home/was/HDFSConf/conf/hdfs-site.xml to hadoop
> configuration
> 2020-03-19 18:59:34,344 INFO
> org.apache.flink.runtime.security.modules.HadoopModule - Hadoop user
> set to kafka (auth:KERBEROS)
>
>
> This is what my streaming file sink code looks like.
>
>
> val sink: StreamingFileSink[String] = StreamingFileSink
> .forRowFormat(new Path("hdfs://tmp/auditlog/"), new
> SimpleStringEncoder[String]("UTF-8"))
> .withRollingPolicy(DefaultRollingPolicy.create()
> .withRolloverInterval(TimeUnit.MINUTES.toMillis(15))
> .withInactivityInterval(TimeUnit.MINUTES.toMillis(5))
> .withMaxPartSize(1024
> * 1024 * 1024)
> .build())
> .build()
>
> result.addSink(sink).name("HDFSSink")
>
>
> When I run the job I get this error stack trace :
>
> INFO org.apache.flink.runtime.executiongraph.ExecutionGraph - Sink:
> HDFSSink (1/1) (27b62d6294da47491041d750daf421a0) switched from RUNNING to
> FAILED.
> java.io.IOException: Cannot instantiate file system for URI:
> hdfs://tmp/auditlog
> at
> org.apache.flink.runtime.fs.hdfs.HadoopFsFactory.create(HadoopFsFactory.java:187)
> at
> org.apache.flink.core.fs.FileSystem.getUnguardedFileSystem(FileSystem.java:399)
> at org.apache.flink.core.fs.FileSystem.get(FileSystem.java:318)
> at
> org.apache.flink.streaming.api.functions.sink.filesystem.Buckets.<init>(Buckets.java:112)
> at
> org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink$RowFormatBuilder.createBuckets(StreamingFileSink.java:242)
> at
> org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink.initializeState(StreamingFileSink.java:327)
> at
> org.apache.flink.streaming.util.functions.StreamingFunctionUtils.tryRestoreFunction(StreamingFunctionUtils.java:178)
> at
> org.apache.flink.streaming.util.functions.StreamingFunctionUtils.restoreFunctionState(StreamingFunctionUtils.java:160)
> at
> org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.initializeState(AbstractUdfStreamOperator.java:96)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:278)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:738)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:289)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:704)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.IllegalArgumentException: java.net.UnknownHostException:
> tmp
> at
> org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:378)
> at
> org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:320)
> at
> org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:176)
> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:687)
> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:628)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)
>
>
> Why is it trying to connect to /tmp ? Is it not supposed to get the namenodes
> from the core-site.xml and hdfs-site.xml ?
>
> Can you please help with the correct way to configure hdfs sink.
>
>
> Best,
>
> Nick.
>
>
>
>
--
Best, Jingsong Lee
