我正在使用Python 3.5和Spark 2.2流媒体与Kafka,脚本无法运行,因为缺少kafka库。
我不明白为什么这个库丢失了/没有找到,尽管依赖信息来自Spark的网站本身。
groupId = org.apache.spark
artifactId = spark-streaming-kafka-0-10_2.11
version = 2.2.0
我运行了"spark-submit script.py“,错误显示kafka库是必需的。
Spark Streaming's Kafka libraries not found in class path. Try one of the following.
1. Include the Kafka library and its dependencies with in the
spark-submit command as
$ bin/spark-submit --packages org.apache.spark:spark-streaming-kafka-0-8:2.2.0 ...
2. Download the JAR of the artifact from Maven Central http://search.maven.org/,
Group Id = org.apache.spark, Artifact Id = spark-streaming-kafka-0-8-assembly, Version = 2.2.0.
Then, include the jar in the spark-submit command as
$ bin/spark-submit --jars <spark-streaming-kafka-0-8-assembly.jar> ...
在下一次运行时,我运行了"spark-submit --packages org.apache.spark:spark-streaming-kafka-0-10:2.2.0 script.py“,其中包含要下载的kafka库。
这一次,错误显示它无法找到/下载该库。
Ivy Default Cache set to: C:\Users\james\.ivy2\cache
The jars for the packages stored in: C:\Users\james\.ivy2\jars
:: loading settings :: url = jar:file:/D:/programs/spark-2.2.0/jars/ivy-2.4.0.jar!/org/apache/ivy/core/settings/ivysettings.xml
org.apache.spark#spark-streaming-kafka-0-10 added as a dependency
:: resolving dependencies :: org.apache.spark#spark-submit-parent;1.0
confs: [default]
:: resolution report :: resolve 2908ms :: artifacts dl 0ms
:: modules in use:
---------------------------------------------------------------------
| | modules || artifacts |
| conf | number| search|dwnlded|evicted|| number|dwnlded|
---------------------------------------------------------------------
| default | 1 | 0 | 0 | 0 || 0 | 0 |
---------------------------------------------------------------------
:: problems summary ::
:::: WARNINGS
module not found: org.apache.spark#spark-streaming-kafka-0-10;2.2.0
==== local-m2-cache: tried
file:/C:/Users/james/.m2/repository/org/apache/spark/spark-streaming-kafka-0-10/2.2.0/spark-streaming-kafka-0-10-2.2.0.pom
-- artifact org.apache.spark#spark-streaming-kafka-0-10;2.2.0!spark-streaming-kafka-0-10.jar:
file:/C:/Users/james/.m2/repository/org/apache/spark/spark-streaming-kafka-0-10/2.2.0/spark-streaming-kafka-0-10-2.2.0.jar
==== local-ivy-cache: tried
C:\Users\james\.ivy2\local\org.apache.spark\spark-streaming-kafka-0-10\2.2.0\ivys\ivy.xml
-- artifact org.apache.spark#spark-streaming-kafka-0-10;2.2.0!spark-streaming-kafka-0-10.jar:
C:\Users\james\.ivy2\local\org.apache.spark\spark-streaming-kafka-0-10\2.2.0\jars\spark-streaming-kafka-0-10.jar
==== central: tried
https://repo1.maven.org/maven2/org/apache/spark/spark-streaming-kafka-0-10/2.2.0/spark-streaming-kafka-0-10-2.2.0.pom
-- artifact org.apache.spark#spark-streaming-kafka-0-10;2.2.0!spark-streaming-kafka-0-10.jar:
https://repo1.maven.org/maven2/org/apache/spark/spark-streaming-kafka-0-10/2.2.0/spark-streaming-kafka-0-10-2.2.0.jar
==== spark-packages: tried
http://dl.bintray.com/spark-packages/maven/org/apache/spark/spark-streaming-kafka-0-10/2.2.0/spark-streaming-kafka-0-10-2.2.0.pom
-- artifact org.apache.spark#spark-streaming-kafka-0-10;2.2.0!spark-streaming-kafka-0-10.jar:
http://dl.bintray.com/spark-packages/maven/org/apache/spark/spark-streaming-kafka-0-10/2.2.0/spark-streaming-kafka-0-10-2.2.0.jar
::::::::::::::::::::::::::::::::::::::::::::::
:: UNRESOLVED DEPENDENCIES ::
::::::::::::::::::::::::::::::::::::::::::::::
:: org.apache.spark#spark-streaming-kafka-0-10;2.2.0: not found
::::::::::::::::::::::::::::::::::::::::::::::
:: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
Exception in thread "main" java.lang.RuntimeException: [unresolved dependency: org.apache.spark#spark-streaming-kafka-0-10;2.2.0: not found]
at org.apache.spark.deploy.SparkSubmitUtils$.resolveMavenCoordinates(SparkSubmit.scala:1177)
at org.apache.spark.deploy.SparkSubmit$.prepareSubmitEnvironment(SparkSubmit.scala:298)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:153)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
发布于 2018-08-27 22:30:09
首先:作为discussed on Developers Mailing list,Kafka不包含在二进制发行版中。这就是为什么在classpath上没有它的原因。
第二:在您的--packages
命令中,您应该指定Scala版本。这并不是只有在SBT中才需要的,但spark-submit
在后台使用了Ivy。
所以,请尝试:
$ bin/spark-submit --packages org.apache.spark:spark-streaming-kafka-0-10_2.11:2.2.0 script.py
额外提示:也许我会创建一个PR来更改描述,这是误导
发布于 2019-08-06 19:53:53
试着写
bin/spark-submit --jars yourjarfile.jar --packages org.apache.spark:spark-streaming-kafka-0-8-assembly_2.11:2.4.3 pythoncode.py
我遇到了同样的问题,我像这样输入解决了它。我希望这能有所帮助。
https://stackoverflow.com/questions/52040384
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