[jira] [Created] (HIVE-19785) Race condition when timeout task is invoked during SASL negotation

["Sahil Takiar (JIRA)" <ji...@apache.org>]

Sahil Takiar created HIVE-19785:
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             Summary: Race condition when timeout task is invoked during SASL negotation
                 Key: HIVE-19785
                 URL: https://issues.apache.org/jira/browse/HIVE-19785
             Project: Hive
          Issue Type: Sub-task
          Components: Spark
            Reporter: Sahil Takiar


There is a race condition that leads to some extraneous exception messages when the timeout task is invoked in {{RpcServer}}.

If a timeout is triggered by {{RpcServer#registerClient}} the method will remove the {[clientId}} from {{pendingClients}}. However, if the SASL negotiation is in progress when the timeout task is invoked, then {{SaslServerHandler#update}} will throw an {{IllegalArgumentException}} complaining that it can't find the {{clientId}} in the map of {{pendingClients}}.

The timeout still succeeds, but the logging is confusing and multiple exceptions make this difficult to debug.



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