Could you try SQLContext.read.json()? On Mon, Jul 20, 2015 at 9:06 AM, Davies Liu <dav...@databricks.com> wrote: > Before using the json file as text file, can you make sure that each > json string can fit in one line? Because textFile() will split the > file by '\n' > > On Mon, Jul 20, 2015 at 3:26 AM, Ajay <ajay0...@gmail.com> wrote: >> Hi, >> >> I am new to Apache Spark. I am trying to parse nested json using pyspark. >> Here is the code by which I am trying to parse Json. >> I am using Apache Spark 1.2.0 version of cloudera CDH 5.3.2. >> >> lines = sc.textFile(inputFile) >> >> import json >> def func(x): >> json_str = json.loads(x) >> if json_str['label']: >> if json_str['label']['label2']: >> return (1,1) >> return (0,1) >> >> lines.map(func).reduceByKey(lambda a,b: a + b).saveAsTextFile(outputFile) >> >> I am getting following error, >> ERROR [Executor task launch worker-13] executor.Executor >> (Logging.scala:logError(96)) - Exception in task 1.0 in stage 14.0 (TID 25) >> org.apache.spark.api.python.PythonException: Traceback (most recent call >> last): >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 107, in main >> process() >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 98, in process >> serializer.dump_stream(func(split_index, iterator), outfile) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 247, in func >> return f(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 1561, in combineLocally >> merger.mergeValues(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/shuffle.py", >> line 252, in mergeValues >> for k, v in iterator: >> File "<stdin>", line 2, in func >> File "/usr/lib64/python2.6/json/__init__.py", line 307, in loads >> return _default_decoder.decode(s) >> File "/usr/lib64/python2.6/json/decoder.py", line 319, in decode >> obj, end = self.raw_decode(s, idx=_w(s, 0).end()) >> File "/usr/lib64/python2.6/json/decoder.py", line 336, in raw_decode >> obj, end = self._scanner.iterscan(s, **kw).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 155, in JSONString >> return scanstring(match.string, match.end(), encoding, strict) >> ValueError: Invalid \escape: line 1 column 855 (char 855) >> >> at org.apache.spark.api.python.PythonRDD$$anon$1.read(PythonRDD.scala:137) >> at org.apache.spark.api.python.PythonRDD$$anon$1.<init>(PythonRDD.scala:174) >> at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:96) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at org.apache.spark.api.python.PairwiseRDD.compute(PythonRDD.scala:305) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) >> at org.apache.spark.scheduler.Task.run(Task.scala:56) >> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >> at java.lang.Thread.run(Thread.java:745) >> 2015-07-20 09:58:24,727 ERROR [Executor task launch worker-12] >> executor.Executor (Logging.scala:logError(96)) - Exception in task 0.0 in >> stage 14.0 (TID 24) >> org.apache.spark.api.python.PythonException: Traceback (most recent call >> last): >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 107, in main >> process() >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 98, in process >> serializer.dump_stream(func(split_index, iterator), outfile) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 247, in func >> return f(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 1561, in combineLocally >> merger.mergeValues(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/shuffle.py", >> line 252, in mergeValues >> for k, v in iterator: >> File "<stdin>", line 2, in func >> File "/usr/lib64/python2.6/json/__init__.py", line 307, in loads >> return _default_decoder.decode(s) >> File "/usr/lib64/python2.6/json/decoder.py", line 319, in decode >> obj, end = self.raw_decode(s, idx=_w(s, 0).end()) >> File "/usr/lib64/python2.6/json/decoder.py", line 336, in raw_decode >> obj, end = self._scanner.iterscan(s, **kw).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 155, in JSONString >> return scanstring(match.string, match.end(), encoding, strict) >> ValueError: Invalid \escape: line 1 column 734 (char 734) >> >> at org.apache.spark.api.python.PythonRDD$$anon$1.read(PythonRDD.scala:137) >> at org.apache.spark.api.python.PythonRDD$$anon$1.<init>(PythonRDD.scala:174) >> at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:96) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at org.apache.spark.api.python.PairwiseRDD.compute(PythonRDD.scala:305) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) >> at org.apache.spark.scheduler.Task.run(Task.scala:56) >> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >> at java.lang.Thread.run(Thread.java:745) >> 2015-07-20 09:58:24,730 WARN [task-result-getter-0] >> scheduler.TaskSetManager (Logging.scala:logWarning(71)) - Lost task 1.0 in >> stage 14.0 (TID 25, localhost): org.apache.spark.api.python.PythonException: >> Traceback (most recent call last): >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 107, in main >> process() >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 98, in process >> serializer.dump_stream(func(split_index, iterator), outfile) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 247, in func >> return f(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 1561, in combineLocally >> merger.mergeValues(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/shuffle.py", >> line 252, in mergeValues >> for k, v in iterator: >> File "<stdin>", line 2, in func >> File "/usr/lib64/python2.6/json/__init__.py", line 307, in loads >> return _default_decoder.decode(s) >> File "/usr/lib64/python2.6/json/decoder.py", line 319, in decode >> obj, end = self.raw_decode(s, idx=_w(s, 0).end()) >> File "/usr/lib64/python2.6/json/decoder.py", line 336, in raw_decode >> obj, end = self._scanner.iterscan(s, **kw).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 155, in JSONString >> return scanstring(match.string, match.end(), encoding, strict) >> ValueError: Invalid \escape: line 1 column 855 (char 855) >> >> at org.apache.spark.api.python.PythonRDD$$anon$1.read(PythonRDD.scala:137) >> at org.apache.spark.api.python.PythonRDD$$anon$1.<init>(PythonRDD.scala:174) >> at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:96) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at org.apache.spark.api.python.PairwiseRDD.compute(PythonRDD.scala:305) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) >> at org.apache.spark.scheduler.Task.run(Task.scala:56) >> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >> at java.lang.Thread.run(Thread.java:745) >> >> 2015-07-20 09:58:24,731 ERROR [task-result-getter-0] >> scheduler.TaskSetManager (Logging.scala:logError(75)) - Task 1 in stage 14.0 >> failed 1 times; aborting job >> 2015-07-20 09:58:24,731 INFO [task-result-getter-0] >> scheduler.TaskSchedulerImpl (Logging.scala:logInfo(59)) - Removed TaskSet >> 14.0, whose tasks have all completed, from pool >> Traceback (most recent call last): >> 2015-07-20 09:58:24,732 INFO [sparkDriver-akka.actor.default-dispatcher-2] >> scheduler.TaskSchedulerImpl (Logging.scala:logInfo(59)) - Cancelling stage >> 14 >> File "<stdin>", line 1, in <module> >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 1288, in saveAsTextFile >> keyed._jrdd.map(self.ctx._jvm.BytesToString()).saveAsTextFile(path) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py", >> line 538, in __call__ >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py", >> line 300, in get_return_value >> py4j.protocol2015-07-20 09:58:24,732 WARN [task-result-getter-1] >> scheduler.TaskSetManager (Logging.scala:logWarning(71)) - Lost task 0.0 in >> stage 14.0 (TID 24, localhost): org.apache.spark.api.python.PythonException: >> Traceback (most recent call last): >> .Py4JJavaError File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 107, in main >> process() >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 98, in process >> serializer.dump_stream(func(split_index, iterator), outfile) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 247, in func >> return f(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 1561, in combineLocally >> merger.mergeValues(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/shuffle.py", >> line 252, in mergeValues >> for k, v in iterator: >> File "<stdin>", line 2, in func >> File "/usr/lib64/python2.6/json/__init__.py", line 307, in loads >> return _default_decoder.decode(s) >> File "/usr/lib64/python2.6/json/decoder.py", line 319, in decode >> obj, end = self.raw_decode(s, idx=_w(s, 0).end()) >> File "/usr/lib64/python2.6/json/decoder.py", line 336, in raw_decode >> obj, end = self._scanner.iterscan(s, **kw).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 155, in JSONString >> return scanstring(match.string, match.end(), encoding, strict) >> ValueError: Invalid \escape: line 1 column 734 (char 734) >> >> at org.apache.spark.api.python.PythonRDD$$anon$1.read(PythonRDD.scala:137) >> at org.apache.spark.api.python.PythonRDD$$anon$1.<init>(PythonRDD.scala:174) >> at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:96) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at org.apache.spark.api.python.PairwiseRDD.compute(PythonRDD.scala:305) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) >> at org.apache.spark.scheduler.Task.run(Task.scala:56) >> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >> at java.lang.Thread.run(Thread.java:745) >> >> 2015-07-20 09:58:24,732 INFO [Thread-2] scheduler.DAGScheduler >> (Logging.scala:logInfo(59)) - Job 8 failed: saveAsTextFile at >> NativeMethodAccessorImpl.java:-2, took 0.090286 s >> 2015-07-20 09:58:24,733 INFO [task-result-getter-1] >> scheduler.TaskSchedulerImpl (Logging.scala:logInfo(59)) - Removed TaskSet >> 14.0, whose tasks have all completed, from pool >> : An error occurred while calling o276.saveAsTextFile. >> : org.apache.spark.SparkException: Job aborted due to stage failure: Task 1 >> in stage 14.0 failed 1 times, most recent failure: Lost task 1.0 in stage >> 14.0 (TID 25, localhost): org.apache.spark.api.python.PythonException: >> Traceback (most recent call last): >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 107, in main >> process() >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/worker.py", >> line 98, in process >> serializer.dump_stream(func(split_index, iterator), outfile) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 2073, in pipeline_func >> return func(split, prev_func(split, iterator)) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 247, in func >> return f(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/rdd.py", >> line 1561, in combineLocally >> merger.mergeValues(iterator) >> File >> "/opt/cloudera/parcels/CDH-5.3.2-1.cdh5.3.2.p0.10/lib/spark/python/pyspark/shuffle.py", >> line 252, in mergeValues >> for k, v in iterator: >> File "<stdin>", line 2, in func >> File "/usr/lib64/python2.6/json/__init__.py", line 307, in loads >> return _default_decoder.decode(s) >> File "/usr/lib64/python2.6/json/decoder.py", line 319, in decode >> obj, end = self.raw_decode(s, idx=_w(s, 0).end()) >> File "/usr/lib64/python2.6/json/decoder.py", line 336, in raw_decode >> obj, end = self._scanner.iterscan(s, **kw).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 183, in JSONObject >> value, end = iterscan(s, idx=end, context=context).next() >> File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan >> rval, next_pos = action(m, context) >> File "/usr/lib64/python2.6/json/decoder.py", line 155, in JSONString >> return scanstring(match.string, match.end(), encoding, strict) >> ValueError: Invalid \escape: line 1 column 855 (char 855) >> >> at org.apache.spark.api.python.PythonRDD$$anon$1.read(PythonRDD.scala:137) >> at org.apache.spark.api.python.PythonRDD$$anon$1.<init>(PythonRDD.scala:174) >> at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:96) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at org.apache.spark.api.python.PairwiseRDD.compute(PythonRDD.scala:305) >> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:263) >> at org.apache.spark.rdd.RDD.iterator(RDD.scala:230) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) >> at >> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) >> at org.apache.spark.scheduler.Task.run(Task.scala:56) >> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >> at java.lang.Thread.run(Thread.java:745) >> >> Driver stacktrace: >> at >> org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1214) >> at >> org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1203) >> at >> org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1202) >> at >> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) >> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47) >> at >> org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1202) >> at >> org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:696) >> at >> org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:696) >> at scala.Option.foreach(Option.scala:236) >> at >> org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:696) >> at >> org.apache.spark.scheduler.DAGSchedulerEventProcessActor$$anonfun$receive$2.applyOrElse(DAGScheduler.scala:1420) >> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:498) >> at akka.actor.ActorCell.invoke(ActorCell.scala:456) >> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237) >> at akka.dispatch.Mailbox.run(Mailbox.scala:219) >> at >> akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386) >> at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) >> at >> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) >> at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) >> at >> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) >> >> What I am doing wrong. Please guide. >> >> Ajay Dubey
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