Vinayakumar B created HADOOP-15602:
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Summary: Support SASL Rpc request handling in separate Handlers
Key: HADOOP-15602
URL: https://issues.apache.org/jira/browse/HADOOP-15602
Project: Hadoop Common
Issue Type: Improvement
Components: ipc
Reporter: Vinayakumar B
Right now, during RPC Connection establishment, all SASL requests are
considered as OutOfBand requests and handled within the same Reader thread.
SASL handling involves authentication with Kerberos and SecretManagers(for
Token validation). During this time, Reader thread would be blocked, hence
blocking all the incoming RPC requests on other established connections. Some
secretManager impls require to communicate to external systems (ex: ZK) for
verification.
SASL RPC handling in separate dedicated handlers, would enable Reader threads
to read RPC requests from established connections without blocking.
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