Shixiong Zhu created SPARK-12614:
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Summary: Don't throw non fatal exception from
RpcEndpointRef.send/ask
Key: SPARK-12614
URL: https://issues.apache.org/jira/browse/SPARK-12614
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.6.0
Reporter: Shixiong Zhu
Right now RpcEndpointRef.send/ask may throw exception in some corner cases,
such as calling send/ask after stopping RpcEnv. It's better to avoid throwing
exception from RpcEndpointRef.send/ask. We can log a warning for `send`, and
send the exception to the future for `ask`.
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