Dan Burkert created KUDU-2006:
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Summary: Detect when security flags are misconfigured
Key: KUDU-2006
URL: https://issues.apache.org/jira/browse/KUDU-2006
Project: Kudu
Issue Type: Improvement
Components: server
Affects Versions: 1.3.1
Reporter: Dan Burkert
In many cases servers could detect when they have different security
configurations ({{--rpc-encryption}} and {{--rpc-authentication}}) than other
servers, or at least between tablet servers and masters. We designed these
features expressly so that clusters could support a mix of {{optional}} and
{{required}} servers, however this should only be the case while in the middle
of a rolling restart to upgrade or downgrade the cluster's security.
So, we should detect these situations and either log loudly, or present some
information in the web UI saying the cluster is in an inconsistent state.
Admins who are in the midst of a rolling restart could ignore this, but it
would give a heads up to everyone else that security configs are wrong.
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