While trying simple examples of PySpark code, I systematically get these
failures when I try this.. I dont see any prior exceptions in the output...
How can I debug further to find root cause?
es_rdd = sc.newAPIHadoopRDD(
inputFormatClass="org.elasticsearch.hadoop.mr.EsInputFormat",
keyClass="org.apache.hadoop.io.NullWritable",
valueClass="org.elasticsearch.hadoop.mr.LinkedMapWritable",
conf={
"es.resource" : "en_2014/doc",
"es.nodes":"rap-es2",
"es.query" : """{"query":{"match_all":{}},"fields":["title"],
"size": 100}"""
}
)
titles=es_rdd.map(lambda d: d[1]['title'][0])
counts = titles.flatMap(lambda x: x.split(' ')).map(lambda x: (x,
1)).reduceByKey(add)
output = counts.collect()
...
14/12/09 19:27:20 INFO BlockManager: Removing broadcast 93
14/12/09 19:27:20 INFO BlockManager: Removing block broadcast_93
14/12/09 19:27:20 INFO MemoryStore: Block broadcast_93 of size 2448 dropped
from memory (free 274984768)
14/12/09 19:27:20 INFO ContextCleaner: Cleaned broadcast 93
14/12/09 19:27:20 INFO BlockManager: Removing broadcast 92
14/12/09 19:27:20 INFO BlockManager: Removing block broadcast_92
14/12/09 19:27:20 INFO MemoryStore: Block broadcast_92 of size 163391
dropped from memory (free 275148159)
14/12/09 19:27:20 INFO ContextCleaner: Cleaned broadcast 92
14/12/09 19:27:20 INFO BlockManager: Removing broadcast 91
14/12/09 19:27:20 INFO BlockManager: Removing block broadcast_91
14/12/09 19:27:20 INFO MemoryStore: Block broadcast_91 of size 163391
dropped from memory (free 275311550)
14/12/09 19:27:20 INFO ContextCleaner: Cleaned broadcast 91
14/12/09 19:27:30 ERROR Executor: Exception in task 0.0 in stage 67.0 (TID
72)
java.lang.UnsupportedOperationException
at java.util.AbstractMap.put(AbstractMap.java:203)
at java.util.AbstractMap.putAll(AbstractMap.java:273)
at
org.elasticsearch.hadoop.mr.EsInputFormat$WritableShardRecordReader.setCurrentValue(EsInputFormat.java:373)
at
org.elasticsearch.hadoop.mr.EsInputFormat$WritableShardRecordReader.setCurrentValue(EsInputFormat.java:322)
at
org.elasticsearch.hadoop.mr.EsInputFormat$ShardRecordReader.next(EsInputFormat.java:299)
at
org.elasticsearch.hadoop.mr.EsInputFormat$ShardRecordReader.nextKeyValue(EsInputFormat.java:227)
at
org.apache.spark.rdd.NewHadoopRDD$$anon$1.hasNext(NewHadoopRDD.scala:138)
at
org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:39)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
at
scala.collection.Iterator$GroupedIterator.takeDestructively(Iterator.scala:913)
at scala.collection.Iterator$GroupedIterator.go(Iterator.scala:929)
at
scala.collection.Iterator$GroupedIterator.fill(Iterator.scala:969)
at
scala.collection.Iterator$GroupedIterator.hasNext(Iterator.scala:972)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
at scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:350)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at
org.apache.spark.api.python.PythonRDD$.writeIteratorToStream(PythonRDD.scala:339)
at
org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$1.apply$mcV$sp(PythonRDD.scala:209)
at
org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$1.apply(PythonRDD.scala:184)
at
org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$1.apply(PythonRDD.scala:184)
at
org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1364)
at
org.apache.spark.api.python.PythonRDD$WriterThread.run(PythonRDD.scala:183)
14/12/09 19:27:30 INFO TaskSetManager: Starting task 2.0 in stage 67.0 (TID
74, localhost, ANY, 26266 bytes)
14/12/09 19:27:30 INFO Executor: Running task 2.0 in stage 67.0 (TID 74)
14/12/09 19:27:30 WARN TaskSetManager: Lost task 0.0 in stage 67.0 (TID 72,
localhost): java.lang.UnsupportedOperationException:
