Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/3142#discussion_r19982240
--- Diff:
core/src/main/scala/org/apache/spark/deploy/worker/WorkerShuffleService.scala
---
@@ -0,0 +1,65 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.deploy.worker
+
+import org.apache.spark.{Logging, SparkConf, SecurityManager}
+import org.apache.spark.network.TransportContext
+import org.apache.spark.network.netty.SparkTransportConf
+import org.apache.spark.network.sasl.SaslRpcHandler
+import org.apache.spark.network.server.TransportServer
+import org.apache.spark.network.shuffle.ExternalShuffleBlockHandler
+
+/**
+ * Provides a server from which Executors can read shuffle files (rather
than reading directly from
+ * each other), to provide uninterrupted access to the files in the face
of executors being turned
+ * off or killed.
+ *
+ * Optionally requires SASL authentication in order to read. See
[[SecurityManager]].
+ */
+private[worker]
+class WorkerShuffleService(sparkConf: SparkConf, securityManager:
SecurityManager) extends Logging {
--- End diff --
I wouldn't be opposed to this being called `StandaloneShuffleService` now
that you renamed the other one `ExternalShuffleService`. The existing name is
also fine.
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