tiflow

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pdClient (ticdc): Enable the pdClient forwarding function to make cdc more stable during network isolation between the PD leader (#11076)

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This is an automated cherry-pick of #11076 ### What problem does this PR solve? Issue Number: close #10849 ### What is changed and how it works? Enable pdClient's forwarding function,...

ti-chi-bot

tests(ticdc): simple protocol claim check integration test enable checksum (#11058)

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This is an automated cherry-pick of #11058 ### What problem does this PR solve? Issue Number: close #11057 ### What is changed and how it works? * enable checksum for...

ti-chi-bot

mounter(ticdc): optimize mounter cpu usage by reduce memory allocation on map and slice

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### What problem does this PR solve? Issue Number: close #11210 ### What is changed and how it works? * use `sync.Pool` to reduce the map allocation for the datum...

3AceShowHand

kv (ticdc): reduce some verbose log (#11077)

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This is an automated cherry-pick of #11077 ### What problem does this PR solve? Issue Number: close #11074 ### What is changed and how it works? ### Check List ####...

ti-chi-bot

CDC consumes too much cpu, and lag goes up from 2s to 4s every few hours

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### What did you do? 1. TiDB cluster with 2 CDC nodes (24c32g) cdc config: ``` config: | log-file = "/var/lib/ticdc/log/ticdc.log" [debug] [debug.kv-client] frontier-concurrent = 32 ``` TiKV cdc.min-ts-interval =...

fubinzh

qps drop 50% when inject ticdc owner io hang

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### What did you do? 1、create changefeed 2、run sysbench subType:"oltp_read_write" tableNum:64 tableSize:70000000 threads:32 3、inject ticdc owner io hang ### What did you expect to see? qps should be normal ###...

Lily2025

test(ticdc): add more integration test dml to cover checksum

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### What problem does this PR solve? Issue Number: close #11383 ### What is changed and how it works? * add more DDL and DML changes in the integration test...

3AceShowHand

[Limitation] TiCDC can't not handle DDL as `alter table xx add column xx datetime default current_timestamp` properly

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### What did you do? Reproduction Steps 1. Create a table t1 ```markdown create table t1 (id int primary key); ``` 2. Create a changefeed to replicate this table 3....

asddongmen

cdc changefeed stucks when injecting all tikv network partition

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### What did you do? 1. create mysql sink changefeed 2. run tpcc prepare ``` go-tpc tpcc --db workload --warehouses 80 -T 50 --host upstream-tidb.cdc-testbed -tps-7597190-1-758 --port 4000 --parts 1...

fubinzh

3AceShowHand