jkorab / kafka-failover-cli

Proof of concept: Command line tool for changing min.insync.replicas in bulk for a set of Kafka topics.

Kafka Failover CLI

Command line tool for changing min.insync.replicas for a set of topics.

Usage: kafka-failover [-hV] -b=<bootstrapServers> -c=<currentIsr>
                      -f=<futureIsr> [-t=<topicsMask>]
Modifies the replication characteristics of a set of topics to enable failover
in a Kafka cluster
  -b=<bootstrapServers>    Bootstrap servers
  -c, --current-isr=<currentIsr>
                           Current min.insync.replicas
  -f, --future-isr=<futureIsr>
                           Future min.insync.replicas
  -h, --help               Show this help message and exit.
  -t, --topics=<topicsMask>
                           Regex of topic names to match against
  -V, --version            Print version information and exit.

Sample usage:

java -jar target/kafka-failover-cli-jar-with-dependencies.jar -b=localhost:9092 -c 2 -f 1 -t test-topic.*