TiCDC Creating Sync Task with Kafka as Downstream Reports Error: Get "http://127.0.0.1:8300/api/v2/status": dial tcp 127.0.0.1:8300: connect: connection refused

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Original topic: ticdc创建同步任务下游是kafka报错Error: Get “http://127.0.0.1:8300/api/v2/status”: dial tcp 127.0.0.1:8300: connect: connection refused

| username: TiDBer_8xv3YpMO

The image is not visible. Please provide the text you need translated.

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| username: WalterWj | Original post link

Is there an issue with the server information? I see you’re accessing the local port 8300?

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| username: TiDBer_8xv3YpMO | Original post link

Yes, I deployed TiDB locally, and TiCDC is also local.

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| username: WalterWj | Original post link

Try replacing 127 with your IP address.

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| username: TiDBer_8xv3YpMO | Original post link

I have tried it, but it’s the same error.

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| username: ffeenn | Original post link

Check the service with netstat -lntp | grep 8300.

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| username: tidb菜鸟一只 | Original post link

Check if your port 8300 is up? Use netstat -anp | grep 8300.

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| username: TiDBer_8xv3YpMO | Original post link

The default value of tidb_enable_clustered_index is INT_ONLY, which means that only tables with integer primary keys will use clustered indexes by default.

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| username: TiDBer_8xv3YpMO | Original post link

Why can’t this synchronization task be deleted?

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| username: TiDBer_8xv3YpMO | Original post link

Reported this error. My TiDB is version 5.4 and CDC is version 6.5. Will there be a version conflict?

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| username: ffeenn | Original post link

Currently, from the issues visible in the screenshot, 1. There are definitely problems with cross-version compatibility. 2. The method of starting the service might be incorrect. It is recommended to redeploy CDC using TiUP.

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| username: TiDBer_8xv3YpMO | Original post link

Can I upgrade the TiDB cluster version? Should I upgrade to 6 or 6.5?

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| username: Billmay表妹 | Original post link

If it’s a test environment, you can directly upgrade to 6.5.0, and all component versions need to be consistent.

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| username: TiDBer_8xv3YpMO | Original post link

Are there any differences in his startup commands and task synchronization compared to the previous 5.4 version?

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| username: TiDBer_8xv3YpMO | Original post link

How to deal with the issue of no leader shown in the startup command?

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| username: TiDBer_8xv3YpMO | Original post link

After restarting the CDC service, there will be no missing leader, but this error is reported.

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| username: system | Original post link

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