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This topic has been translated from a Chinese forum by GPT and might contain errors.Original topic: tikv在线修改配置报错
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username: 我家有个臭皮崽
Error when modifying the labels attribute of tikv online
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username: 我家有个臭皮崽
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username: The error message indicates that modifying the labels attribute is prohibited.
So the label attribute cannot be dynamically modified after the tikvserver is started, right?
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username: I didn’t see labels in the dynamically supported configuration items.
Try using tiup cluster edit-config.
That’s right, my current cluster doesn’t use the tiup tool. After starting, I use pd-ctl/tikv-ctl to modify the configuration.
However, when I use this command to modify the labels attribute of TiKV online, it reports an error.
./tikv-ctl --host 127.0.0.1:50160 modify-tikv-config -n server.labels -v “az=“1””
DebugClient::modify_tikv_config: RpcFailure: 2-UNKNOWN “failed to update config, err: “config labels cannot be changed””
Because it is not supported. The link I posted above does not mention support for dynamically modifying the labels attribute.
Okay, so if I want to do multi-region deployment, I must first statically configure the labels for TiKV and then start it, right?
Is the absence of the tiup tool because the version is lower than 4.0?
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username: There is an operator for k8s deployment, isn’t the configuration modified in the same way?
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username: This error clearly indicates that online modification is not supported, right?
Yes, the labels setting of TiKV does not support online modification.
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username: Check if there are any mistakes. If it’s correct and you still want to make changes, it’s recommended to test it in a testing environment first. Some parameters cannot be changed online, but you can modify the YAML file.
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username: This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.