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https://issues.apache.org/jira/browse/SPARK-26047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-26047.
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Resolution: Not A Problem
Yea, seems to be a problem in Py4J
> Py4JNetworkError (on IPV6): An error occurred while trying to connect to the
> Java server (127.0.0.1
> ---------------------------------------------------------------------------------------------------
>
> Key: SPARK-26047
> URL: https://issues.apache.org/jira/browse/SPARK-26047
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 2.4.0
> Reporter: Abdul Mateen Mohammed
> Priority: Major
>
> On IPV6, I got the following error when pyspark is invoked:
> h1. Py4JNetworkError: An error occurred while trying to connect to the Java
> server (127.0.0.1...)
> Where as on IPV4, it is working fine.
> I realized that the issue was due to default address specified as 127.0.0.1
> in java_gateway.py under py4j-0.10.7-src.zip
> Resolution:
> I was able to fix it by replacing the entry
> DEFAULT_ADDRESS = "127.0.0.1" with DEFAULT_ADDRESS = "::1"
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