How do I kill an Elasticache node

Question

I have set up a new AWS EC2 environment with Elasticache Redis.

I'd like to test failure scenarios.

Does anybody know how to Kill:

A cluster

A node

?

Answer 1

AWS provides support for testing automatic fail-overs on Elasticache nodes. This can be done in one of the three ways.

1. AWS Console - Go to elasticache page and select the shard name and the node on which you want to execute failover as Failover Primary and choose Continue.

2. AWS CLI

   aws elasticache test-failover --replication-group-id redis00 --node-group-id redis00-0003

3. ElastiCache API

curl https://elasticache.us-west-2.amazonaws.com/
    ?Action=TestFailover
    &NodeGroupId=redis00-0003
    &ReplicationGroupId=redis00
    &Version=2015-02-02
    &SignatureVersion=4
    &SignatureMethod=HmacSHA256
    &Timestamp=20140401T192317Z
    &X-Amz-Credential=<credential>

Replace with the appropriate cluster name, region etc.

Reference:

https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/AutoFailover.html#auto-failover-test-cli

Answer 2

A few things come to mind:

• Fill up the entire cluster with data
• Go into the ElastiCache dashboard and delete the cluster
• Return a "failure" in an abstraction layer