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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