Status

Current state: "Under Discussion"

Discussion thread: here [Change the link from the KIP proposal email archive to your own email thread]

JIRA: here

Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).

Motivation

KIP-226 added support for dynamic update of  broker configuration.  In this KIP, we propose to extend the support to dynamic update of max.connections.per.ip/max.connections.per.ip.overrides configs. This will be useful  in the situations where a particular host (or set of hosts) is causing some trouble for the broker.  Administrators can dynamically update these configs to restrict the connections coming from faulty hosts.

Proposed Changes

Use case: To restrict the connections coming from faulty clients/hosts

Config scope: Default for whole cluster (/configs/brokers/<default>)

Config options:

max.connections.per.ip
max.connections.per.ip.overrides

Dynamic update changes:

Above configs will be updated with the new values. Existing connections will not be affected, restrictions will be applied on
new connection creations.

Compatibility, Deprecation, and Migration Plan

• There won't be any impact on existing users.
• There won't be any change of current behavior.
• No migration tool required

Rejected Alternatives