16/10/10 08:58:05 TRACE ipc.ProtobufRpcEngine: 1: Call -> hdfs-namenode/10.0.0.4:8020: getFileInfo {src: "/sdss9.parquet/_spark_metadata"}
16/10/10 08:58:05 DEBUG ipc.Client: The ping interval is 60000 ms.
16/10/10 08:58:05 DEBUG ipc.Client: Connecting to hdfs-namenode/10.0.0.4:8020
16/10/10 08:58:05 DEBUG ipc.Client: IPC Client (1929284175) connection to hdfs-namenode/10.0.0.4:8020 from root: starting, having connections 1
16/10/10 08:58:05 DEBUG ipc.Client: IPC Client (1929284175) connection to hdfs-namenode/10.0.0.4:8020 from root sending #0
16/10/10 08:58:05 DEBUG ipc.Client: IPC Client (1929284175) connection to hdfs-namenode/10.0.0.4:8020 from root got value #0
16/10/10 08:58:05 DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 90ms
16/10/10 08:58:05 TRACE ipc.ProtobufRpcEngine: 1: Response <- hdfs-namenode/10.0.0.4:8020: getFileInfo {}
16/10/10 08:58:05 TRACE ipc.ProtobufRpcEngine: 1: Call -> hdfs-namenode/10.0.0.4:8020: getFileInfo {src: "/sdss9.parquet"}
16/10/10 08:58:05 DEBUG ipc.Client: IPC Client (1929284175) connection to hdfs-namenode/10.0.0.4:8020 from root sending #1
16/10/10 08:58:05 DEBUG ipc.Client: IPC Client (1929284175) connection to hdfs-namenode/10.0.0.4:8020 from root got value #1
16/10/10 08:58:05 DEBUG ipc.ProtobufRpcEngine: Call: getFileInfo took 1ms
16/10/10 08:58:05 TRACE ipc.ProtobufRpcEngine: 1: Response <- hdfs-namenode/10.0.0.4:8020: getFileInfo {fs { fileType: IS_DIR path: "" length: 0 permission { perm: 493 } owner: "root" group: "supergroup" modification_time: 1475678016427 access_time: 0 block_replication: 0 blocksize: 0 fileId: 16706 childrenNum: 25 storagePolicy: 0 }}
16/10/10 08:58:05 TRACE datasources.ListingFileCatalog: Listing hdfs://hdfs-namenode:8020/sdss9.parquet on driver
16/10/10 08:58:05 TRACE ipc.ProtobufRpcEngine: 1: Call -> hdfs-namenode/10.0.0.4:8020: getListing {src: "/sdss9.parquet" startAfter: "" needLocation: false}
16/10/10 08:58:05 DEBUG ipc.Client: IPC Client (1929284175) connection to hdfs-namenode/10.0.0.4:8020 from root sending #2
16/10/10 08:58:05 DEBUG ipc.Client: IPC Client (1929284175) connection to hdfs-namenode/10.0.0.4:8020 from root got value #2
16/10/10 08:58:05 DEBUG ipc.ProtobufRpcEngine: Call: getListing took 2msVoici par exemple à quoi ressemble la communication entre le spark-master et le hdfs-namenode au début du programme
Le preprocess n’arrive pas à son terme, un problème lié à l’écriture d’après le message d’erreur
Job aborted due to stage failure: Task 1 in stage 4.0 failed 4 times, most recent failure: Lost task 1.3 in stage 4.0 (TID 900, 10.0.0.14): org.apache.spark.SparkException: Task failed while writing rows
at org.apache.spark.sql.execution.datasources.DefaultWriterContainer.writeRows(WriterContainer.scala:261)
at org.apache.spark.sql.execution.datasources.InsertIntoHadoopFsRelationCommand$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(InsertIntoHadoopFsRelationCommand.scala:143)
at org.apache.spark.sql.execution.datasources.InsertIntoHadoopFsRelationCommand$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(InsertIntoHadoopFsRelationCommand.scala:143)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70)
at org.apache.spark.scheduler.Task.run(Task.scala:86)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Stream is corrupted
at org.apache.spark.io.LZ4BlockInputStream.refill(LZ4BlockInputStream.java:211)
at org.apache.spark.io.LZ4BlockInputStream.available(LZ4BlockInputStream.java:109)
at java.io.BufferedInputStream.read(BufferedInputStream.java:353)
at java.io.DataInputStream.read(DataInputStream.java:149)
at org.spark_project.guava.io.ByteStreams.read(ByteStreams.java:899)
at org.spark_project.guava.io.ByteStreams.readFully(ByteStreams.java:733)
at org.apache.spark.sql.execution.UnsafeRowSerializerInstance$$anon$3$$anon$1.next(UnsafeRowSerializer.scala:127)
at org.apache.spark.sql.execution.UnsafeRowSerializerInstance$$anon$3$$anon$1.next(UnsafeRowSerializer.scala:110)
at scala.collection.Iterator$$anon$12.next(Iterator.scala:444)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:409)
at org.apache.spark.util.CompletionIterator.next(CompletionIterator.scala:30)
at org.apache.spark.InterruptibleIterator.next(InterruptibleIterator.scala:43)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:409)
at org.apache.spark.sql.execution.datasources.DefaultWriterContainer$$anonfun$writeRows$1.apply$mcV$sp(WriterContainer.scala:254)
at org.apache.spark.sql.execution.datasources.DefaultWriterContainer$$anonfun$writeRows$1.apply(WriterContainer.scala:252)
at org.apache.spark.sql.execution.datasources.DefaultWriterContainer$$anonfun$writeRows$1.apply(WriterContainer.scala:252)
at org.apache.spark.util.Utils$.tryWithSafeFinallyAndFailureCallbacks(Utils.scala:1345)
at org.apache.spark.sql.execution.datasources.DefaultWriterContainer.writeRows(WriterContainer.scala:258)
... 8 more
Caused by: net.jpountz.lz4.LZ4Exception: Error decoding offset 15084 of input buffer
at net.jpountz.lz4.LZ4JNIFastDecompressor.decompress(LZ4JNIFastDecompressor.java:39)
at org.apache.spark.io.LZ4BlockInputStream.refill(LZ4BlockInputStream.java:205)
... 25 more