pingcap / pingcap/ticdc

Enhance ddl execution speed when downstream is multi-node TiDB.

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#1,197 0 comments 0 reactions 1 assignee View on GitHub

@hongyunyan is already working on this.

Since Mar 28, 2025.

type/enhancement
Dominant language
Go
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56
Forks
63
Avg merge
2d 20h
Merged PRs (30d)
34

Description

When the downstream is TiDB, and have multiple tidb servers, each ddl statement costs at least 500ms.
Currently, we execute many type's ddls one by one, like create tables.
So when there are a lot of create tables or other similar ddls at the same time, these ddls will cost at least 500ms * Numbers, which is inconvenient and inefficient.

Thus, we need to consider batch the ddl events or other optimization methods based on the 500ms situations.

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