ticdc 4.0.7同步数据问题

🪐 TiDB 技术问题 备份&数据迁移
1

tidb同步到tidb，版本都是4.0.7， ticdc 4.0.7同步数据时，建完任务之后一直卡住，gc time 设置为72小时，log如下：

[2022/06/24 03:42:27.430 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:27.929 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:28.429 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:28.930 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:29.429 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:29.929 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:30.429 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:30.929 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:31.429 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:31.929 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:32.430 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:32.929 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:33.429 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:33.929 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:34.430 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:34.930 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]
[2022/06/24 03:42:35.430 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]

有可能是什么原因？

2

你现在有什么问题？ 同步报错了吗？还是数据不同步？

3

不同步数据，log里面只是输出：
[2022/06/24 03:42:27.430 +00:00] [DEBUG] [changefeed.go:716] [“skip update resolved ts”] [taskPositions=0] [taskStatus=1]

4

start-ts指定的是全备的commitTs

5

cdc 不同步数据

你看下这个帖子，这个是我们同事测试过的， 如果你是测试环境的话，可以测试一下

6
8

我当时用的是4.0.6版本，同步配置完成后，也是不复制，最后把版本升级了。
我现在怀疑你的这个4.0.7是不是版本的问题。
建议你先按照最简单的配置方法来一遍，如果仍然不同步，你可以把版本升级一下试一试。

9

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