NoSuchMethodError error from Java MapReduce GoogleCloudStorageLineInputReader

[Carter]

Any clues on how to fix this?

We are getting uncaught exceptions with NoSuchMethodError.

We're on 1.8.4 and using what we believe is th latest version of the gcs client and java pipeline.

Uncaught exception from servlet
java.lang.NoSuchMethodError: com.google.appengine.tools.cloudstorage.GcsService.openPrefetchingReadChannel(Lcom/google/appengine/tools/cloudstorage/GcsFilename;JI)Ljava/nio/channels/ReadableByteChannel;
	at com.google.appengine.tools.mapreduce.inputs.GoogleCloudStorageLineInputReader.beginSlice(GoogleCloudStorageLineInputReader.java:79)
	at com.google.appengine.tools.mapreduce.impl.WorkerShardTask.run(WorkerShardTask.java:84)
	at com.google.appengine.tools.mapreduce.impl.shardedjob.ShardedJobRunner.runTask(ShardedJobRunner.java:265)
	at com.google.appengine.tools.mapreduce.impl.shardedjob.ShardedJobServiceImpl.handleWorkerRequest(ShardedJobServiceImpl.java:49)
	at com.google.appengine.tools.mapreduce.impl.handlers.MapReduceServletImpl.doPost(MapReduceServletImpl.java:76)
	at com.google.appengine.tools.mapreduce.MapReduceServlet.doPost(MapReduceServlet.java:57)

[Vinny P]

On Tue, Sep 24, 2013 at 5:22 PM, Carter <jcma...@gmail.com> wrote:

Any clues on how to fix this?

We are getting uncaught exceptions with NoSuchMethodError.

We're on 1.8.4 and using what we believe is th latest version of the gcs client and java pipeline.

Uncaught exception from servlet
java.lang.NoSuchMethodError: com.google.appengine.tools.cloudstorage.GcsService.openPrefetchingReadChannel

Do you have multiple versions of the GCS library installed? Make sure to inspect all JARs, there may be a library that includes GCS without your knowledge.

Does this happen on your local development server as well?

 

 

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-Vinny P

Technology & Media Advisor

Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com