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https://issues.apache.org/jira/browse/FLINK-1579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15924274#comment-15924274
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ASF GitHub Bot commented on FLINK-1579:
---------------------------------------
Github user uce commented on a diff in the pull request:
https://github.com/apache/flink/pull/3460#discussion_r105870188
--- Diff:
flink-runtime-web/src/main/java/org/apache/flink/runtime/webmonitor/history/HistoryServer.java
---
@@ -0,0 +1,276 @@
+/*
+ * 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.flink.runtime.webmonitor.history;
+
+import io.netty.handler.codec.http.router.Router;
+import org.apache.flink.api.java.utils.ParameterTool;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.configuration.GlobalConfiguration;
+import org.apache.flink.configuration.HistoryServerOptions;
+import org.apache.flink.core.fs.FileSystem;
+import org.apache.flink.core.fs.Path;
+import org.apache.flink.runtime.net.SSLUtils;
+import org.apache.flink.runtime.security.SecurityUtils;
+import org.apache.flink.runtime.webmonitor.handlers.DashboardConfigHandler;
+import org.apache.flink.runtime.webmonitor.utils.WebFrontendBootstrap;
+import org.apache.flink.util.FileUtils;
+import org.apache.flink.util.FlinkException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.net.ssl.SSLContext;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.lang.reflect.UndeclaredThrowableException;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class HistoryServer {
--- End diff --
Please add a high level comment describing what the history server does.
> Create a Flink History Server
> -----------------------------
>
> Key: FLINK-1579
> URL: https://issues.apache.org/jira/browse/FLINK-1579
> Project: Flink
> Issue Type: New Feature
> Components: Distributed Coordination
> Affects Versions: 0.9
> Reporter: Robert Metzger
> Assignee: Chesnay Schepler
>
> Right now its not possible to analyze the job results for jobs that ran on
> YARN, because we'll loose the information once the JobManager has stopped.
> Therefore, I propose to implement a "Flink History Server" which serves the
> results from these jobs.
> I haven't started thinking about the implementation, but I suspect it
> involves some JSON files stored in HDFS :)
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