Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/17866#discussion_r115060808
--- Diff:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
---
@@ -429,8 +429,7 @@ private[spark] class ApplicationMaster(
}
private def runExecutorLauncher(securityMgr: SecurityManager): Unit = {
- val port = sparkConf.get(AM_PORT)
- rpcEnv = RpcEnv.create("sparkYarnAM", Utils.localHostName, port,
sparkConf, securityMgr,
+ rpcEnv = RpcEnv.create("sparkYarnAM", Utils.localHostName, -1,
sparkConf, securityMgr,
--- End diff --
It might be better to replace the two `create` parameters (`port` and
`clientMode`) with a single `port: Option[Int]` now; if it's set, a server is
started, if it's not, it operates in client-only mode.
Probably ok to punt on that one though, since it will touch a lot more
places I think.
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