Hi Junyang,

Could you open a JIRA for this improvement?
Also, if you're interested, welcome to submit a PR for it.

Thank you.
Luke

On Wed, Sep 21, 2022 at 2:08 AM Junyang Liu <thought...@126.com> wrote:

> Hi,
>
>
> When configuring flow control quota for users and clients, Kafka will add
> a child node to /config/users or /config/clients in zookeeper. When
> deleting a flow control quota config, the existing node in zookeeper will
> not be deleted even if the configs in the node are empty. So if a client
> repeatedly configure and delete flow control quota for different users and
> clients, the node in zookeeper will increase continuously, which may leads
> to severe problems such as memory leak.
>
>
> I suggest that we can delete the node in zookeeper (child nodes under
> /config/users and /config/clients) if the configs in the node are empty.
>
>
> Thanks,
> -- Junyang Liu

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