Shay Rojansky created SPARK-3457:
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Summary: ConcurrentModificationException starting up pyspark
Key: SPARK-3457
URL: https://issues.apache.org/jira/browse/SPARK-3457
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.1.0
Environment: Hadoop 2.3 (CDH 5.1) on Ubuntu precise
Reporter: Shay Rojansky
Just downloaded Spark 1.1.0-rc4. Launching pyspark for the very first time in
yarn-client mode (no additional params or anything), I got the exception below.
Rerunning pyspark 5 times afterwards did not reproduce the issue.
14/09/09 18:07:58 INFO YarnClientSchedulerBackend: Application report from ASM:
appMasterRpcPort: 0
appStartTime: 1410275267606
yarnAppState: RUNNING
14/09/09 18:07:58 INFO YarnClientSchedulerBackend: Add WebUI Filter.
org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter, PROXY_HOST=master.
grid.eaglerd.local,PROXY_URI_BASE=http://master.grid.eaglerd.local:8088/proxy/application_1410268447887_0011,
/proxy/application_1410268447887_0011
Traceback (most recent call last):
File "/opt/spark/python/pyspark/shell.py", line 44, in <module>
14/09/09 18:07:58 INFO JettyUtils: Adding filter:
org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter
sc = SparkContext(appName="PySparkShell", pyFiles=add_files)
File "/opt/spark/python/pyspark/context.py", line 107, in __init__
conf)
File "/opt/spark/python/pyspark/context.py", line 155, in _do_init
self._jsc = self._initialize_context(self._conf._jconf)
File "/opt/spark/python/pyspark/context.py", line 201, in _initialize_context
return self._jvm.JavaSparkContext(jconf)
File "/opt/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py", line
701, in __call__
File "/opt/spark/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
None.org.apache.spark.api.java.JavaSparkContext.
: java.util.ConcurrentModificationException
at java.util.Hashtable$Enumerator.next(Hashtable.java:1167)
at
scala.collection.convert.Wrappers$JPropertiesWrapper$$anon$3.next(Wrappers.scala:458)
at
scala.collection.convert.Wrappers$JPropertiesWrapper$$anon$3.next(Wrappers.scala:454)
at scala.collection.Iterator$class.toStream(Iterator.scala:1143)
at scala.collection.AbstractIterator.toStream(Iterator.scala:1157)
at
scala.collection.Iterator$$anonfun$toStream$1.apply(Iterator.scala:1143)
at
scala.collection.Iterator$$anonfun$toStream$1.apply(Iterator.scala:1143)
at scala.collection.immutable.Stream$Cons.tail(Stream.scala:1085)
at scala.collection.immutable.Stream$Cons.tail(Stream.scala:1077)
at
scala.collection.immutable.Stream$$anonfun$filteredTail$1.apply(Stream.scala:1149)
at
scala.collection.immutable.Stream$$anonfun$filteredTail$1.apply(Stream.scala:1149)
at scala.collection.immutable.Stream$Cons.tail(Stream.scala:1085)
at scala.collection.immutable.Stream$Cons.tail(Stream.scala:1077)
at scala.collection.immutable.Stream.length(Stream.scala:284)
at scala.collection.SeqLike$class.sorted(SeqLike.scala:608)
at scala.collection.AbstractSeq.sorted(Seq.scala:40)
at org.apache.spark.SparkEnv$.environmentDetails(SparkEnv.scala:324)
at
org.apache.spark.SparkContext.postEnvironmentUpdate(SparkContext.scala:1297)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:334)
at
org.apache.spark.api.java.JavaSparkContext.<init>(JavaSparkContext.scala:53)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:234)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:379)
at py4j.Gateway.invoke(Gateway.java:214)
at
py4j.commands.ConstructorCommand.invokeConstructor(ConstructorCommand.java:79)
at py4j.commands.ConstructorCommand.execute(ConstructorCommand.java:68)
at py4j.GatewayConnection.run(GatewayConnection.java:207)
at java.lang.Thread.run(Thread.java:745)
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