Github user vrozov commented on a diff in the pull request: https://github.com/apache/drill/pull/1145#discussion_r172718426 --- Diff: exec/rpc/src/main/java/org/apache/drill/exec/rpc/BasicClient.java --- @@ -69,6 +74,11 @@ private final IdlePingHandler pingHandler; private ConnectionMultiListener.SSLHandshakeListener sslHandshakeListener = null; + // Authentication related parameters + protected volatile List<String> serverAuthMechanisms = null; --- End diff -- Is `volatile` necessary? Consider making all variables private and providing `setAuthRequired(List<String> authMechanisms)`.
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