How to Migrate Your Databases After CentOS End‑of‑Life: Alternatives and Best Practices

1. CentOS End‑of‑Life

CentOS, one of the most popular open‑source Linux distributions, has ceased maintenance: CentOS 8 stopped on 31 December 2021 and CentOS 7 will stop on 30 June 2024. Without updates, systems face security vulnerabilities, lack of official patches, and increased risk of downtime, data loss, and attacks.

2. Alternative Distributions

1. Switch to other community free versions: Rocky Linux, Ubuntu
2. Switch to commercial distributions such as SUSE, Amazon Linux
3. Switch to Red Hat‑led community or releases: CentOS Stream or RHEL
4. Switch to domestic distributions: Longx, OpenEuler, Kylin, etc.

CentOS‑compatible distributions are listed below.

3. Database Migration Considerations

Which operating system is best for running databases? Major relational databases such as Oracle, MySQL, PostgreSQL, as well as domestic databases like OceanBase, openGauss, and DM, are commonly deployed on CentOS. Ensuring OS‑database compatibility is essential for high performance, reliability, and ease of use.

Migration is not a simple OS reinstall; the process must guarantee system availability, preserve functionality, avoid performance degradation, and handle substantial changes in kernel, base packages, and toolchains. A one‑stop replacement, adaptation, and refactoring of the ecosystem are required.

The operating system profoundly impacts a DBMS because the DBMS relies on OS‑provided hardware resources, scheduler, and file‑system interaction. Proactively adopting a domestic OS as a replacement addresses security realities and fulfills professional, industry, and national responsibilities.

For DBAs, database migration and upgrade are critical tasks. Making informed choices and planning effective implementation strategies are vital for successful migration.

4. Summary

After CentOS is discontinued, quickly filling the market gap is critical; based on the risks, response strategies, key technologies, and ecosystem reconstruction, operators should ensure database compatibility and maintain service continuity.