spark/processing/3.1/py3/hadoop-config/core-site.xml

<?xml version="1.0" encoding="UTF-8"?>
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 <!-- Put site-specific property overrides in this file. -->

 <configuration>
     <property>
         <name>fs.defaultFS</name>
         <value>hdfs://nn_uri/</value>
         <description>NameNode URI</description>
     </property>
     <property>
         <name>fs.s3a.aws.credentials.provider</name>
         <value>com.amazonaws.auth.DefaultAWSCredentialsProviderChain</value>
         <description>AWS S3 credential provider</description>
     </property>
     <property>
         <name>fs.s3.impl</name>
         <value>org.apache.hadoop.fs.s3a.S3AFileSystem</value>
         <description>s3a filesystem implementation</description>
     </property>
     <property>
         <name>fs.AbstractFileSystem.s3a.imp</name>
         <value>org.apache.hadoop.fs.s3a.S3A</value>
         <description>s3a filesystem implementation</description>
     </property>
     <property>
         <name>fs.s3a.connection.maximum</name>
         <value>100</value>
         <description>s3a filesystem maximum connection</description>
     </property>
 </configuration>