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Posted to issues@spark.apache.org by "Thouis Jones (JIRA)" <ji...@apache.org> on 2015/09/16 20:30:46 UTC
[jira] [Created] (SPARK-10642) Crash in rdd.lookup() with
"java.lang.Long cannot be cast to java.lang.Integer"
Thouis Jones created SPARK-10642:
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Summary: Crash in rdd.lookup() with "java.lang.Long cannot be cast to java.lang.Integer"
Key: SPARK-10642
URL: https://issues.apache.org/jira/browse/SPARK-10642
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 1.5.0
Environment: OSX
Reporter: Thouis Jones
Running this command:
{code}
sc.parallelize([(('a', 'b'), 'c')]).groupByKey().partitionBy(20).cache().lookup(('a', 'b'))
{code}
gives the following error:
{noformat}
15/09/16 14:22:23 INFO SparkContext: Starting job: runJob at PythonRDD.scala:361
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/Cellar/apache-spark/1.5.0/libexec/python/pyspark/rdd.py", line 2199, in lookup
return self.ctx.runJob(values, lambda x: x, [self.partitioner(key)])
File "/usr/local/Cellar/apache-spark/1.5.0/libexec/python/pyspark/context.py", line 916, in runJob
port = self._jvm.PythonRDD.runJob(self._jsc.sc(), mappedRDD._jrdd, partitions)
File "/usr/local/Cellar/apache-spark/1.5.0/libexec/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py", line 538, in __call__
File "/usr/local/Cellar/apache-spark/1.5.0/libexec/python/pyspark/sql/utils.py", line 36, in deco
return f(*a, **kw)
File "/usr/local/Cellar/apache-spark/1.5.0/libexec/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py", line 300, in get_return_value
py4j.protocol.Py4JJavaError: An error occurred while calling z:org.apache.spark.api.python.PythonRDD.runJob.
: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
at scala.runtime.BoxesRunTime.unboxToInt(BoxesRunTime.java:106)
at org.apache.spark.scheduler.DAGScheduler$$anonfun$submitJob$1.apply(DAGScheduler.scala:530)
at scala.collection.Iterator$class.find(Iterator.scala:780)
at scala.collection.AbstractIterator.find(Iterator.scala:1157)
at scala.collection.IterableLike$class.find(IterableLike.scala:79)
at scala.collection.AbstractIterable.find(Iterable.scala:54)
at org.apache.spark.scheduler.DAGScheduler.submitJob(DAGScheduler.scala:530)
at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:558)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1813)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1826)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1839)
at org.apache.spark.api.python.PythonRDD$.runJob(PythonRDD.scala:361)
at org.apache.spark.api.python.PythonRDD.runJob(PythonRDD.scala)
at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:379)
at py4j.Gateway.invoke(Gateway.java:259)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:207)
at java.lang.Thread.run(Thread.java:745)
{noformat}
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