Existing changefeeds show lag spikes after deleting many changefeeds in a short time
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@lidezhu is already working on this.
Since Jul 1, 2026.
severity/moderate
type/bug
- Dominant language
- Go
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Description
What did you do?
Multiple changefeeds are deleted within a short period.
cdc version: v8.5.7-release.1
What did you expect to see?
Deleting changefeeds should not cause noticeable checkpoint/resolved lag spikes on other existing running changefeeds.
What did you see instead?
Existing running changefeeds may show a temporary lag spike.
Versions of the cluster
Upstream TiDB cluster version (execute SELECT tidb_version(); in a MySQL client):
(paste TiDB cluster version here)
Upstream TiKV version (execute tikv-server --version):
(paste TiKV version here)
TiCDC version (execute cdc version):
(paste TiCDC version here)
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Assessment
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