tests: context manager to add random failures #4441
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Uses FailureInjector and the admin utility to create a context manager which can be used to introduce random node failures and other operations including: 1. Process kills 2. Node decommissions 3. Leadership transfer The context manager introduced here starts a thread on entry, which sleeps for a random interval and then applies an operation to the cluster. The thread continues this until the context exits. Nodes affected can be limited by passing a configuration to the context manager, along with time limits.
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duplicate of #4404 |
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Cover letter
Adds random action injector utilities, aimed to be used for e2e tests. The failures could be process failures, node decommission, leadership transfer etc, controlled by a context manager.
The action injector runs on a thread and periodically introduces changes on randomly selected nodes in the cluster.
Release notes