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Excessive CDC Log Output When There are more than 5k changefeed

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

Status: Open.

#5097 In pingcap/ticdc;

· asddongmen opened on May 19, 2026

simulated one tikv io hang last for 20 minutes, and the cdc changefeed lag continued to increase until the workload was stopped

may-affects-8.5

severity/major

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

Status: Open.

#5096 In pingcap/ticdc;

· Lily2025 opened on May 19, 2026

active-active TSO preflight reads PD config instead of TSO microservice config

Status: Open.

#5091 In pingcap/ticdc;

· King-Dylan opened on May 18, 2026

eventcollector: clarify dispatcher registration state machine and fix local re-register stall

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

Status: Open.

#5088 In pingcap/ticdc;

· lidezhu opened on May 18, 2026

Duplicate dispatcher can be created during maintainer failover before orphan dispatcher drains

may-affects-8.5

severity/critical

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

Status: Open.

#5083 In pingcap/ticdc;

· asddongmen opened on May 18, 2026

[tidbx] After running a series of HA tests, the upstream and downstream data are inconsistent

may-affects-8.5

severity/critical

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

Status: Open.

#5082 In pingcap/ticdc;

· Lily2025 opened on May 18, 2026

pulsar: make max-message-bytes configurable

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

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

Status: Open.

#5058 In pingcap/ticdc;

· HGHNice opened on May 15, 2026

[Bug] Next-gen failed changefeed may block PD GC beyond gc-ttl

Status: Open.

#5057 In pingcap/ticdc;

· tenfyzhong opened on May 15, 2026

pulsar: support debezium protocol

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

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

Status: Open.

#5056 In pingcap/ticdc;

· HGHNice opened on May 15, 2026

Dispatcher checkpoint can stall at syncpoint in weekly random DDL test

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

Status: Open.

#5040 In pingcap/ticdc;

· hongyunyan opened on May 13, 2026

[Bug] Allow changefeed resume when start-ts equals GC safepoint

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

Status: Open.

#5038 In pingcap/ticdc;

· tenfyzhong opened on May 13, 2026

tracker: fix golangci-lint issues (PR 2 of 4)

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

Status: Open.

#5032 In pingcap/ticdc;

· 3AceShowHand opened on May 12, 2026