Question

当我在ec2上使用rdd fucntion时，（bin / pyspark）

发生此错误

数据是
数据= sc.textFile（＆＃34; /根/实验室/ irisdata＆＃34）
要么 data = sc.textFile（＆＃34; s3n：//＆＃34; + bucket.name +＆＃34; /＆＃34; + file_key.name＆＃34;）

    15/08/27 09:16:58 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
15/08/27 09:16:58 WARN snappy.LoadSnappy: Snappy native library not loaded
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/root/spark/python/pyspark/rdd.py", line 1247, in take
    totalParts = self.getNumPartitions()
  File "/root/spark/python/pyspark/rdd.py", line 355, in getNumPartitions
    return self._jrdd.partitions().size()
  File "/root/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py", line 538, in __call__
  File "/root/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py", line 300, in get_return_value
py4j.protocol.Py4JJavaError: An error occurred while calling o23.partitions.
: org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://ec2-54-65-212-78.ap-northeast-1.compute.amazonaws.com:9000/root/lab/irisdata
    at org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:197)
    at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:208)
    at org.apache.spark.rdd.HadoopRDD.getPartitions(HadoopRDD.scala:207)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
    at scala.Option.getOrElse(Option.scala:120)
    at org.apache.spark.rdd.RDD.partitions(RDD.scala:217)
    at org.apache.spark.rdd.MapPartitionsRDD.getPartitions(MapPartitionsRDD.scala:32)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
    at scala.Option.getOrElse(Option.scala:120)
    at org.apache.spark.rdd.RDD.partitions(RDD.scala:217)
    at org.apache.spark.api.java.JavaRDDLike$class.partitions(JavaRDDLike.scala:65)
    at org.apache.spark.api.java.AbstractJavaRDDLike.partitions(JavaRDDLike.scala:47)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)
    at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:379)
    at py4j.Gateway.invoke(Gateway.java:259)
    at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
    at py4j.commands.CallCommand.execute(CallCommand.java:79)
    at py4j.GatewayConnection.run(GatewayConnection.java:207)
    at java.lang.Thread.run(Thread.java:745)

请告诉我如何修复它。

PS。在本地计算机，相同的代码没有错误:(

Answer 1

该行

Input path does not exist: hdfs://ec2-54-65-212-78.ap-northeast-1.compute.amazonaws.com:9000/root/lab/irisdata

表示您尝试读入rdd的文件不在您认为的位置。看起来它不在本地文件系统中，而是在hdfs中。

当我尝试在ec2上使用Spark时发生错误

1 个答案: