We are trying to use Spark 1.6 within CDH 5.7.1 to retrieve a 1.3GB Parquet
file from AWS S3. We can read the schema and show some data when the file is
loaded into a DataFrame, but when we try to do some operations, such as count,
we get this error below.
com.cloudera.com.amazonaws.AmazonClientException: Unable to load AWS
credentials from any provider in the chain
at
com.cloudera.com.amazonaws.auth.AWSCredentialsProviderChain.getCredentials(AWSCredentialsProviderChain.java:117)
at
com.cloudera.com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:3779)
at
com.cloudera.com.amazonaws.services.s3.AmazonS3Client.headBucket(AmazonS3Client.java:1107)
at
com.cloudera.com.amazonaws.services.s3.AmazonS3Client.doesBucketExist(AmazonS3Client.java:1070)
at
org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:239)
at
org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2711)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:97)
at
org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2748)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2730)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:385)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)
at
parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:385)
at
parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:162)
at
parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:145)
at
org.apache.spark.rdd.SqlNewHadoopRDD$$anon$1.<init>(SqlNewHadoopRDD.scala:180)
at
org.apache.spark.rdd.SqlNewHadoopRDD.compute(SqlNewHadoopRDD.scala:126)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:270)
at
org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:270)
at
org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:270)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:89)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:229)
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)
Can anyone help?
Cheers,
Ben
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