Thanks to all the people at the Kafka Summit who spent their time discussing with me a couple of edge problem cases.
I'd be happy to collaborate to KIPs for these two problems, for which I just opened JIRAs as the motivation is still missing a proposed solution. https://issues.apache.org/jira/browse/KAFKA-5200 (Deleting topic when one broker is down will prevent topic to be re-created) https://issues.apache.org/jira/browse/KAFKA-5201 (Compacted topic could be misused to fill up a disk but deletion policy can't retain legitimate keys ) Edo -------------------------------------------------- Edoardo Comar IBM MessageHub eco...@uk.ibm.com IBM UK Ltd, Hursley Park, SO21 2JN IBM United Kingdom Limited Registered in England and Wales with number 741598 Registered office: PO Box 41, North Harbour, Portsmouth, Hants. PO6 3AU Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU