Py4JNetworkError: An error occurred while trying to connect to the Java server (127.0.0.1:43323) #325
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2018-07-02 02:00:48 WARN ObjectStore:568 - Failed to get database global_temp, returning NoSuchObjectException 2018-07-02 02:27:13 ERROR TaskSetManager:70 - Task 1 in stage 308.0 failed 1 times; aborting job |
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Not enough space to cache rdd_1145_1 in memory! It's an rdd long linkage error due to memory overflow in JVM |
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hi，I also had similar problems.And，The way I solved it was through，Modify creation SparkContext method： |
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Hey, I am still facing the same issue of connection failure. I am attaching the log of the issue. ERROR:root:Exception while sending command. During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last):
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similar issue, can anybody help on this? During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): |
What you said is very helpful for me .That solved my problem. |
Hy,
I'm trying to run a Spark application on standalone mode with two workers, It's working well for a small dataset. But for a bigger dataset it's failing with this error: After increasing number of workers from two to six same error exist. Probably due to memory overflow!
Version py4j-0.10.7
ERROR:py4j.java_gateway:An error occurred while trying to connect to the Java server (127.0.0.1:43323)
Traceback (most recent call last):
File "/home/javeed/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py", line 929, in _get_connection
connection = self.deque.pop()
IndexError: pop from an empty deque
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/javeed/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py", line 1067, in start
self.socket.connect((self.address, self.port))
ConnectionRefusedError: [Errno 111] Connection refused
IndexError Traceback (most recent call last)
~/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py in _get_connection(self)
928 try:
--> 929 connection = self.deque.pop()
930 except IndexError:
IndexError: pop from an empty deque
During handling of the above exception, another exception occurred:
ConnectionRefusedError Traceback (most recent call last)
~/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py in start(self)
1066 try:
-> 1067 self.socket.connect((self.address, self.port))
1068 self.stream = self.socket.makefile("rb")
ConnectionRefusedError: [Errno 111] Connection refused
During handling of the above exception, another exception occurred:
Py4JNetworkError Traceback (most recent call last)
in ()
4 # Build the model
5 t0 = time()
----> 6 dt = DecisionTreeClassifier(featuresCol = 'features', labelCol = 'label', maxDepth = 3)
7 dtModel = dt.fit(train)
8
~/spark-2.3.1-bin-hadoop2.7/python/pyspark/init.py in wrapper(self, *args, **kwargs)
103 raise TypeError("Method %s forces keyword arguments." % func.name)
104 self._input_kwargs = kwargs
--> 105 return func(self, **kwargs)
106 return wrapper
107
~/spark-2.3.1-bin-hadoop2.7/python/pyspark/ml/classification.py in init(self, featuresCol, labelCol, predictionCol, probabilityCol, rawPredictionCol, maxDepth, maxBins, minInstancesPerNode, minInfoGain, maxMemoryInMB, cacheNodeIds, checkpointInterval, impurity, seed)
973 super(DecisionTreeClassifier, self).init()
974 self._java_obj = self._new_java_obj(
--> 975 "org.apache.spark.ml.classification.DecisionTreeClassifier", self.uid)
976 self._setDefault(maxDepth=5, maxBins=32, minInstancesPerNode=1, minInfoGain=0.0,
977 maxMemoryInMB=256, cacheNodeIds=False, checkpointInterval=10,
~/spark-2.3.1-bin-hadoop2.7/python/pyspark/ml/wrapper.py in _new_java_obj(java_class, *args)
59 java_obj = _jvm()
60 for name in java_class.split("."):
---> 61 java_obj = getattr(java_obj, name)
62 java_args = [_py2java(sc, arg) for arg in args]
63 return java_obj(*java_args)
~/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py in getattr(self, name)
1647 proto.REFLECTION_COMMAND_NAME +
1648 proto.REFL_GET_UNKNOWN_SUB_COMMAND_NAME + name + "\n" + self._id +
-> 1649 "\n" + proto.END_COMMAND_PART)
1650 if answer == proto.SUCCESS_PACKAGE:
1651 return JavaPackage(name, self._gateway_client, jvm_id=self._id)
~/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py in send_command(self, command, retry, binary)
981 if
binaryisTrue.982 """
--> 983 connection = self._get_connection()
984 try:
985 response = connection.send_command(command)
~/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py in _get_connection(self)
929 connection = self.deque.pop()
930 except IndexError:
--> 931 connection = self._create_connection()
932 return connection
933
~/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py in _create_connection(self)
935 connection = GatewayConnection(
936 self.gateway_parameters, self.gateway_property)
--> 937 connection.start()
938 return connection
939
~/spark-2.3.1-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py in start(self)
1077 "server ({0}:{1})".format(self.address, self.port)
1078 logger.exception(msg)
-> 1079 raise Py4JNetworkError(msg, e)
1080
1081 def _authenticate_connection(self):
Py4JNetworkError: An error occurred while trying to connect to the Java server (127.0.0.1:43323)
Any help?
Thanks
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