jin xing created SPARK-19450:
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Summary: Replace askWithRetry with askSync.
Key: SPARK-19450
URL: https://issues.apache.org/jira/browse/SPARK-19450
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.1.0
Reporter: jin xing
*askSync* is already added in *RpcEndpointRef* (see SPARK-19347 and
https://github.com/apache/spark/pull/16690#issuecomment-276850068) and
*askWithRetry* is marked as deprecated.
As mentioned
SPARK-18113(https://github.com/apache/spark/pull/16503#event-927953218):
??askWithRetry is that it's basically an unneeded API, and a leftover from the
akka days that doesn't make sense anymore. It's prone to cause deadlocks
(exactly because it's blocking), it imposes restrictions on the caller (e.g.
idempotency) and other things that people generally don't pay that much
attention to when using it.??
Since *askWithRetry* is just used inside spark and not in user logic. It might
make sense to replace all of them with *askSync*.
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