Nick Travers created KAFKA-4681:
-----------------------------------
Summary: Disallow reassign-partitions script to assign partitions
to non-existent brokers
Key: KAFKA-4681
URL: https://issues.apache.org/jira/browse/KAFKA-4681
Project: Kafka
Issue Type: Improvement
Reporter: Nick Travers
Priority: Minor
When running the {{kafka-reassign-partitions.sh}} script, it is possible for
partitions to be accidentally assigned to brokers that do not exist.
This results in partitions with an indefinitely reduced ISR set, as the
partition can never be replicated to the non-existent broker.
The solution was to add a new broker with the "bogus" broker ID, reassign the
partitions to other brokers, before decommissioning the bogus broker. This is
not ideal due to the increased operational burden of adding and removing
brokers, in addition to manually moving partitions around.
Suggest patching the script to disallow assignment of partitions to brokers
that either do not exist, or brokers that are dead, and not participating in
the ISR of other partitions.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
