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add table route core functionality

type/feature-requestCategorizes issue or PR as related to a new feature.Categorizes issue or PR as related to a new feature.

Status: Open.

#4941 In pingcap/ticdc;

· 3AceShowHand opened on Apr 28, 2026

changefeed resolvedTs lag increase after pausing to write data upstream

severity/moderate

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#4940 In pingcap/ticdc;

· wk989898 opened on Apr 28, 2026

Optimize performance by adjusting PebbleDB options

type/enhancementThe issue or PR belongs to an enhancement.The issue or PR belongs to an enhancement.

Status: Open.

#4939 In pingcap/ticdc;

· wk989898 opened on Apr 28, 2026

cdc cli: support TOML output and migration-optimized diff for changefeed query

contributionThis PR is from a community contributor.This PR is from a community contributor.

first-time-contributorIndicates that the PR was contributed by an external member and is a first-time contributor.Indicates that the PR was contributed by an external member and is a first-time contributor.

Status: Open.

#4936 In pingcap/ticdc;

· JesseZhuang opened on Apr 27, 2026

slow kafka sink when upstream write data

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#4895 In pingcap/ticdc;

· wk989898 opened on Apr 23, 2026

Running changefeed resume reports success and creates unnecessary GC guard

component/apiHTTP API.HTTP API.

component/cliCLI component.CLI component.

severity/minor

subject/usabilityDenotes an issue or pull request is related to usability.Denotes an issue or pull request is related to usability.

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#4893 In pingcap/ticdc;

· wlwilliamx opened on Apr 23, 2026

[Bug] Reduce excessive repeated log when memory quota is not set

Status: Open.

#4890 In pingcap/ticdc;

· tenfyzhong opened on Apr 22, 2026

event service does not send ready/handshake immediately for newly registered or reset dispatchers when no new resolved-ts arrives, causing dispatcher initialization or recovery to stall

contributionThis PR is from a community contributor.This PR is from a community contributor.

severity/moderate

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#4873 In pingcap/ticdc;

· zier-one opened on Apr 20, 2026

Upgrade vulnerable dependencies

Status: Open.

#4844 In pingcap/ticdc;

· kennytm opened on Apr 17, 2026

CDC OOM When There Are 60k Dispatchers with Syncpoint Enabled and Many Truncate Table DDLs

severity/moderate

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#4842 In pingcap/ticdc;

· asddongmen opened on Apr 17, 2026

unstable unit test TestScaleNode

component/testUnit tests and integration tests component.Unit tests and integration tests component.

severity/minor

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#4837 In pingcap/ticdc;

· wk989898 opened on Apr 16, 2026

pulsar consumer stuck after broker restarted

component/testUnit tests and integration tests component.Unit tests and integration tests component.

severity/moderate

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#4834 In pingcap/ticdc;

· wk989898 opened on Apr 16, 2026