[GitHub] [incubator-doris] morningman commented on a change in pull request #4383: [SparkLoad]Use the yarn command to get status and kill the application

[GitBox <gi...@apache.org>]

morningman commented on a change in pull request #4383:
URL: https://github.com/apache/incubator-doris/pull/4383#discussion_r472090745



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File path: fe/fe-core/src/main/java/org/apache/doris/load/loadv2/YarnApplicationReport.java
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@@ -0,0 +1,121 @@
+// 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.doris.load.loadv2;
+
+import org.apache.doris.common.LoadException;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Maps;
+
+import org.apache.hadoop.yarn.api.records.ApplicationReport;
+import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
+import org.apache.hadoop.yarn.api.records.YarnApplicationState;
+import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationReportPBImpl;
+import org.apache.hadoop.yarn.util.ConverterUtils;
+
+import java.text.NumberFormat;
+import java.text.ParseException;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Covert output string of command `yarn application -status` to application report.
+ * Input sample:
+ * -------------------
+ * Application Report :
+ * 	Application-Id : application_1573630236805_6763648
+ * 	Application-Name : doris_label_test
+ * 	Application-Type : SPARK-2.4.1
+ * 	User : test
+ * 	Queue : test-queue
+ * 	Start-Time : 1597654469958
+ * 	Finish-Time : 1597654801939
+ * 	Progress : 100%
+ * 	State : FINISHED
+ * 	Final-State : SUCCEEDED
+ * 	Tracking-URL : 127.0.0.1:8004/history/application_1573630236805_6763648/1
+ * 	RPC Port : 40236
+ * 	AM Host : host-name
+ * 	------------------
+ *
+ * 	Output:
+ * 	ApplicationReport
+ */
+public class YarnApplicationReport {
+    private static final String APPLICATION_ID = "Application-Id";
+    private static final String APPLICATION_TYPE = "Application-Type";
+    private static final String APPLICATION_NAME = "Application-Name";
+    private static final String USER = "User";
+    private static final String QUEUE = "Queue";
+    private static final String START_TIME = "Start-Time";
+    private static final String FINISH_TIME = "Finish-Time";
+    private static final String PROGRESS = "Progress";
+    private static final String STATE = "State";
+    private static final String FINAL_STATE = "Final-State";
+    private static final String TRACKING_URL = "Tracking-URL";
+    private static final String RPC_PORT = "RPC Port";
+    private static final String AM_HOST = "AM Host";
+    private static final String DIAGNOSTICS = "Diagnostics";
+
+    private ApplicationReport report;
+
+    public YarnApplicationReport(String output) throws LoadException {
+        this.report = new ApplicationReportPBImpl();
+        parseFromOutput(output);
+    }
+
+    public ApplicationReport getReport() {
+        return report;
+    }
+
+    private void parseFromOutput(String output) throws LoadException {
+        Map<String, String> reportMap = Maps.newHashMap();
+        List<String> lines = Splitter.onPattern("\n").trimResults().splitToList(output);
+        // Application-Id : application_1573630236805_6763648 ==> (Application-Id, application_1573630236805_6763648)
+        for (String line : lines) {
+            List<String> entry = Splitter.onPattern(":").limit(2).trimResults().splitToList(line);
+            Preconditions.checkState(entry.size() <= 2);

Review comment:
       Preconditions.checkState(entry.size() <= 2, line);




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