[GitHub] [spark] LuciferYang edited a comment on pull request #34827: [SPARK-37565][TESTS] Upgrade mysql-connector-java to 8.0.27

[GitBox <gi...@apache.org>]

LuciferYang edited a comment on pull request #34827:
URL: https://github.com/apache/spark/pull/34827#issuecomment-988454118


   From 
   
   - https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-versions.html
   - https://dev.mysql.com/doc/connector-j/5.1/en/connector-j-versions.html
   
   We may need to check two key points：
   
   1. Connector/J 5.1  conforms to the JDBC 3.0, 4.0, 4.1, and 4.2 specifications, but Connector/J 8.0 only implements JDBC 4.2, does this affect us?
   2. From the following description, we can know that in order to support `TLSv1.3`, we should use JDK above8u261. Do we need to add it to the relevant documents
   
   ```
   JDK Required for Compilation: JDK 8.0 or higher is required for compiling Connector/J 8.0. Also, a customized JSSE provider might be required to use some later TLS versions and cipher suites when connecting to MySQL servers. For example, because Oracle's Java 8 releases before 8u261 were shipped with JSSE implementations that support TLS up to version 1.2 only, you need a customized JSSE implementation to use TLSv1.3 on those Java 8 platforms. Oracle Java 8u261 and above do support TLSv1.3, so no customized JSSE implementation is needed.
   ```
   
   
   
   


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