Delete pod

Execute the following command to delete the corresponding dn pod directly, and k8s will automatically rebuild the pod:

kubectl delete pod {dn pod name}

Graceful Shutdown

In some scenarios, we need to perform a graceful shutdown of DN and then restart it. First, execute the following command to turn off the liveness probe of dn:

kubectl annotate pod {dn pod name} runmode=debug

Then directly log into the corresponding dn pod, enter the myc command to access the MySQL command-line interface, and execute the following command:

mysql> shutdown;

This will restart the DN process without rebuilding the dn pod.

After you are done, remember to execute the following command to turn the liveness probe back on:

kubectl annotate --overwrite pod {dn pod name} runmode-