您知道 Google App Engine 上 Java mapreduce 管道中这个未捕获异常的解决方法吗?
在这一行中创建 GCS_SERVICE 是否只是 GcsServiceFactory 中的故障? https://code.google.com/p/appengine-mapreduce/source/browse/trunk/java/src/com/google/appengine/tools/mapreduce/inputs/GoogleCloudStorageLineInputReader.java?r=462#80
关于如何解决的任何想法?
我们经常看到这种情况:
2013-09-24 18:18:17.819 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)