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Update ticdc/troubleshoot-ticdc.md
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Co-authored-by: Ran <[email protected]>
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2 people authored and ti-chi-bot committed Nov 8, 2021
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Expand Up @@ -102,7 +102,7 @@ A replication task might be interrupted in the following known scenarios:
2. Use the new task configuration file and add the `ignore-txn-start-ts` parameter to skip the transaction corresponding to the specified `start-ts`.
3. Stop the old replication task via HTTP API. Execute `cdc cli changefeed create` to create a new task and specify the new task configuration file. Specify `checkpoint-ts` recorded in step 1 as the `start-ts` and start a new task to resume the replication.

- In TiCDC v4.0.13 and earlier versions, the replication partition table may cause a replication interruption.
- In TiCDC v4.0.13 and earlier versions, when TiCDC replicates the partitioned table, it might encounter an error that leads to replication interruption.

- In this scenario, TiCDC saves the task information. Because TiCDC has set the service GC safepoint in PD, the data after the task checkpoint is not cleaned by TiKV GC within the valid period of `gc-ttl`.
- Handling procedures:
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