[ https://issues.apache.org/jira/browse/BEAM-2995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16352114#comment-16352114 ]
Dawid Wysakowicz commented on BEAM-2995: ---------------------------------------- [~huangjianhuang] I could not reproduce your exact problem, but it does not connect to hdfs in my case if I do not add proper transformer, as explained in BEAM-2457. {code:java} <!-- Shade the project into an über jar to send to Spark --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <configuration> <createDependencyReducedPom>false</createDependencyReducedPom> <filters> <filter> <artifact>*:*</artifact> <excludes> <exclude>META-INF/*.SF</exclude> <exclude>META-INF/*.DSA</exclude> <exclude>META-INF/*.RSA</exclude> </excludes> </filter> </filters> </configuration> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <shadedArtifactAttached>true</shadedArtifactAttached> <shadedClassifierName>shaded</shadedClassifierName> <transformers> <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/> </transformers> </configuration> </execution> </executions> </plugin> {code} > can't read/write hdfs in Flink CLUSTER(Standalone) > -------------------------------------------------- > > Key: BEAM-2995 > URL: https://issues.apache.org/jira/browse/BEAM-2995 > Project: Beam > Issue Type: Bug > Components: runner-flink > Affects Versions: 2.2.0 > Reporter: huangjianhuang > Assignee: Dawid Wysakowicz > Priority: Major > > i just write a simple demo like: > {code:java} > Configuration conf = new Configuration(); > conf.set("fs.default.name", "hdfs://localhost:9000"); > //other codes > p.apply("ReadLines", > TextIO.read().from("hdfs://localhost:9000/tmp/words")) > > .apply(TextIO.write().to("hdfs://localhost:9000/tmp/hdfsout")); > {code} > it works in flink local model with cmd: > {code:java} > mvn exec:java -Dexec.mainClass=com.joe.FlinkWithHDFS -Pflink-runner > -Dexec.args="--runner=FlinkRunner > --filesToStage=target/flinkBeam-2.2.0-SNAPSHOT-shaded.jar" > {code} > but not works in CLUSTER mode: > {code:java} > mvn exec:java -Dexec.mainClass=com.joe.FlinkWithHDFS -Pflink-runner > -Dexec.args="--runner=FlinkRunner > --filesToStage=target/flinkBeam-2.2.0-SNAPSHOT-shaded.jar > --flinkMaster=localhost:6123 " > {code} > it seems the flink cluster regard the hdfs as local file system. > The input log from flink-jobmanger.log is: > {code:java} > 2017-09-27 20:17:37,962 INFO org.apache.flink.runtime.jobmanager.JobManager > - Successfully ran initialization on master in 136 ms. > 2017-09-27 20:17:37,968 INFO org.apache.beam.sdk.io.FileBasedSource > - {color:red}Filepattern hdfs://localhost:9000/tmp/words2 > matched 0 files with total size 0{color} > 2017-09-27 20:17:37,968 INFO org.apache.beam.sdk.io.FileBasedSource > - Splitting filepattern hdfs://localhost:9000/tmp/words2 into > bundles of size 0 took 0 ms and produced 0 files a > nd 0 bundles > {code} > The output error message is : > {code:java} > Caused by: java.lang.ClassCastException: > {color:red}org.apache.beam.sdk.io.hdfs.HadoopResourceId cannot be cast to > org.apache.beam.sdk.io.LocalResourceId{color} > at > org.apache.beam.sdk.io.LocalFileSystem.create(LocalFileSystem.java:77) > at org.apache.beam.sdk.io.FileSystems.create(FileSystems.java:256) > at org.apache.beam.sdk.io.FileSystems.create(FileSystems.java:243) > at > org.apache.beam.sdk.io.FileBasedSink$Writer.open(FileBasedSink.java:922) > at > org.apache.beam.sdk.io.FileBasedSink$Writer.openUnwindowed(FileBasedSink.java:884) > at > org.apache.beam.sdk.io.WriteFiles.finalizeForDestinationFillEmptyShards(WriteFiles.java:909) > at org.apache.beam.sdk.io.WriteFiles.access$900(WriteFiles.java:110) > at > org.apache.beam.sdk.io.WriteFiles$2.processElement(WriteFiles.java:858) > {code} > can somebody help me, i've try all the way just can't work it out [cry] > https://issues.apache.org/jira/browse/BEAM-2457 -- This message was sent by Atlassian JIRA (v7.6.3#76005)