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Optimize incremental scan performance degradation caused by log puller memory quota throttling

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

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

Status: Open.

#4112 In pingcap/ticdc;

· lidezhu opened on Jan 31, 2026

ticdc natively syncs to apache iceberg

Status: Open.

#4099 In pingcap/ticdc;

· BornChanger opened on Jan 30, 2026

unstable integration test in_flight_syncpoint_during_scheduling

severity/moderate

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

Status: Open.

#4097 In pingcap/ticdc;

· wk989898 opened on Jan 30, 2026

There may have 2 maintainers when resume a changefeed in failed.

Status: Open.

#4094 In pingcap/ticdc;

· hongyunyan opened on Jan 29, 2026

[Bug] unit_test_in_verify_ci exits 1 with failing tests

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

Status: Open.

#4089 In pingcap/ticdc;

· tenfyzhong opened on Jan 29, 2026

dispatcher manager resolvedTs got stuck after cdc restart

affects-8.5This bug affects the 8.5.x(LTS) versions.This bug affects the 8.5.x(LTS) versions.

affects-9.0This bug affects the 9.0.x versions.This bug affects the 9.0.x versions.

severity/moderate

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

Status: Open.

#4086 In pingcap/ticdc;

· asddongmen opened on Jan 29, 2026

Changefeed may disappear after upgrade due to legacy "namespace" field in changefeed ID JSON

may-affects-9.0

severity/major

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

Status: Open.

#4079 In pingcap/ticdc;

· wlwilliamx opened on Jan 28, 2026

the s3 date prefix may not be monotonically incremental

Status: Open.

#4073 In pingcap/ticdc;

· Leavrth opened on Jan 28, 2026

data inconsistency between upstream and downstream after kill one ticdc

may-affects-9.0

severity/critical

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

Status: Open.

#4065 In pingcap/ticdc;

· Lily2025 opened on Jan 26, 2026

TiCDC Kafka sink: missing topic keeps changefeed in warning (expected) but pegs CPU/memory

severity/major

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

Status: Open.

#4064 In pingcap/ticdc;

· wlwilliamx opened on Jan 25, 2026

[Bug] event_store on_disk_data_size can overflow to EiB

Status: Open.

#4062 In pingcap/ticdc;

· tenfyzhong opened on Jan 23, 2026

incorrect checkpointTs lag metric

component/metrics-loggingMetrics and logging component.Metrics and logging component.

severity/minor

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

Status: Open.

#4053 In pingcap/ticdc;

· wk989898 opened on Jan 22, 2026