Hi, Cheng.
Thank you for the suggestion. Your suggestion seems to have at least two
themes.
A. Adding a new Apache Spark community policy (contract) to guarantee MySQL
LTS Versions Support.
B. Dropping the support of non-LTS version support (MySQL 8.3/8.2/8.1)
And, it brings me three questions.
1. For (A), do you mean MySQL LTS versions are not supported by Apache
Spark releases properly due to the improper test suite?
2. For (B), why does Apache Spark need to drop non-LTS MySQL support?
3. What about MariaDB? Do we need to stick to some versions?
To be clear, if needed, we can have daily GitHub Action CIs easily like
Python CI (Python 3.8/3.10/3.11/3.12).
-
https://github.com/apache/spark/blob/master/.github/workflows/build_python.yml
Thanks,
Dongjoon.
On Sun, Mar 24, 2024 at 10:29 PM Cheng Pan wrote:
> Hi, Spark community,
>
> I noticed that the Spark JDBC connector MySQL dialect is testing against
> the 8.3.0[1] now, a non-LTS version.
>
> MySQL changed the version policy recently[2], which is now very similar to
> the Java version policy. In short, 5.5, 5.6, 5.7, 8.0 is the LTS version,
> 8.1, 8.2, 8.3 is non-LTS, and the next LTS version is 8.4.
>
> I would say that MySQL is one of the most important infrastructures today,
> I checked the AWS RDS MySQL[4] and Azure Database for MySQL[5] version
> support policy, and both only support 5.7 and 8.0.
>
> Also, Spark officially only supports LTS Java versions, like JDK 17 and
> 21, but not 22. I would recommend using MySQL 8.0 for testing until the
> next MySQL LTS version (8.4) is available.
>
> Additional discussion can be found at [3]
>
> [1] https://issues.apache.org/jira/browse/SPARK-47453
> [2]
> https://dev.mysql.com/blog-archive/introducing-mysql-innovation-and-long-term-support-lts-versions/
> [3] https://github.com/apache/spark/pull/45581
> [4] https://aws.amazon.com/rds/mysql/
> [5] https://learn.microsoft.com/en-us/azure/mysql/concepts-version-policy
>
> Thanks,
> Cheng Pan
>
>
>
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