我正在尝试使用Python将apachekafka与apachespark流集成(我对所有这些都是新手)。在
为此,我完成了以下步骤
bin/kafka-topics.sh --list --zookeeper localhost:2181
https://github.com/apache/spark/blob/master/examples/src/main/python/streaming/kafka_wordcount.py
密码是
from __future__ import print_function
import sys
from pyspark import SparkContext
from pyspark.streaming import StreamingContext
from pyspark.streaming.kafka import KafkaUtils
if __name__ == "__main__":
if len(sys.argv) != 3:
print("Usage: kafka_wordcount.py <zk> <topic>", file=sys.stderr)
exit(-1)
sc = SparkContext(appName="PythonStreamingKafkaWordCount")
ssc = StreamingContext(sc, 1)
zkQuorum, topic = sys.argv[1:]
kvs = KafkaUtils.createStream(ssc, zkQuorum, "spark-streaming-consumer", {topic: 1})
lines = kvs.map(lambda x: x[1])
counts = lines.flatMap(lambda line: line.split(" ")) \
.map(lambda word: (word, 1)) \
.reduceByKey(lambda a, b: a+b)
counts.pprint()
ssc.start()
ssc.awaitTermination()
./spark-submit /root/girish/python/kafkawordcount.py localhost:2181
我得到了这个错误
^{pr2}$spark submit failed with spark streaming workdcount python code
到
./spark-submit --jars /root/spark-1.2.0.2.2.0.0-82-bin-2.6.0.2.2.0.0-2041/lib/spark-streaming-kafka_2.10-1.3.1.jar,/usr/hdp/2.2.0.0-2041/kafka/libs/kafka_2.10-0.8.1.2.2.0.0-2041.jar,/usr/hdp/2.2.0.0-2041/kafka/libs/zkclient-0.3.jar,/usr/hdp/2.2.0.0-2041/kafka/libs/metrics-core-2.2.0.jar /root/girish/python/kafkawordcount.py localhost:2181 <topic name>
现在我得到了这个错误
File "/root/girish/python/kafkawordcount.py", line 28, in <module>
kvs = KafkaUtils.createStream(ssc, zkQuorum, "spark-streaming-consumer", {topic: 1})
File "/root/spark-1.2.0.2.2.0.0-82-bin-2.6.0.2.2.0.0-2041/python/pyspark/streaming/kafka.py", line 67, in createStream
jstream = helper.createStream(ssc._jssc, kafkaParams, topics, jlevel)
File "/root/spark-1.2.0.2.2.0.0-82-bin-2.6.0.2.2.0.0-2041/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py", line 529, in __call__
File "/root/spark-1.2.0.2.2.0.0-82-bin-2.6.0.2.2.0.0-2041/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py", line 265, in get_command_part
AttributeError: 'dict' object has no attribute '_get_object_id'
请帮忙解决这个问题。在
提前谢谢
PS:我使用的是ApacheSpark1.2
通过使用ApacheSpark1.3解决了这个问题,它比1.2版本对Python有更好的支持
面临同样的问题,通过添加kafka组装包解决了这个问题
根据你的spark和kafka版本使用。在
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