Github user andrewor14 commented on a diff in the pull request: https://github.com/apache/spark/pull/1336#discussion_r15024426 --- Diff: core/src/main/scala/org/apache/spark/deploy/master/ui/HistoryNotFoundPage.scala --- @@ -0,0 +1,40 @@ +/* + * 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.master.ui + +import javax.servlet.http.HttpServletRequest + +import scala.xml.Node + +import org.apache.spark.ui.{UIUtils, WebUIPage} + +private[spark] class HistoryNotFoundPage(parent: MasterWebUI) + extends WebUIPage("history/not-found") { + + def render(request: HttpServletRequest): Seq[Node] = { + val content = + <div class="row-fluid"> + <div class="span12" style="font-size:14px;font-weight:bold"> + No event logs were found for this application. To enable event logging, please set --- End diff -- This is for the standalone Master, not the history server. Here the event log directory for each application is shipped to the master as part of the application description, so the Master knows where to find the logs automatically. (For history server, however, the user should explicitly set the path in all cases as you describe)
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