Issues Regarding DM Version

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1

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: 关于DM版本问题

| username: 大钢镚13146

[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version]
[Reproduction Path] What operations were performed that led to the issue
[Encountered Issue: Issue Phenomenon and Impact]
[Resource Configuration]
[Attachment: Screenshot/Log/Monitoring]

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The DM documentation is for version 5.x, and the provided upgrade path is from version 1 to version 2.
It’s a bit confusing. What is the relationship here? My current cluster is version 2.4, and I want to check if I need to upgrade to version 5.x.

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| username: WalterWj | Original post link

Previously, DM and TiDB versions were synchronized weekly. Later, to decouple them, the DM version was managed independently. Currently, DM is not bound to TiDB.

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| username: ShawnYan | Original post link

In earlier versions (v1.0 and v2.0), DM used a version number independent of TiDB. Starting from DM v5.3, DM adopts the same version number as TiDB. The next version after DM v2.0 is DM v5.3. There are no compatibility changes from DM v2.0 to v5.3, and the upgrade process is the same as a normal upgrade, with only an increase in the version number.

Are you also considering upgrading the cluster?

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| username: 大钢镚13146 | Original post link

I didn’t see how to upgrade.

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| username: 小龙虾爱大龙虾 | Original post link

Building a new link according to the synchronization point is an upgrade. This is just a synchronization tool.

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| username: tidb菜鸟一只 | Original post link

Originally, the DM version was independent of the TiDB version, but later they became consistent. Since your cluster is version 2.4, using the new version of DM might cause issues.