YARN-10157. FS-CS converter: initPropertyActions() is not called without rules file. Contributed by Peter Bacsko

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/converter/FSConfigToCSConfigConverter.java

@@ -166,11 +166,13 @@ public class FSConfigToCSConfigConverter {
   private void loadConversionRules(String rulesFile) throws IOException {
     if (rulesFile != null) {
       LOG.info("Reading conversion rules file from: " + rulesFile);
-      this.ruleHandler.loadRulesFromFile(rulesFile);
+      ruleHandler.loadRulesFromFile(rulesFile);
     } else {
       LOG.info("Conversion rules file is not defined, " +
           "using default conversion config!");
     }
+
+    ruleHandler.initPropertyActions();
   }
 
   private Configuration getInputYarnSiteConfig(

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/converter/FSConfigToCSConfigRuleHandler.java

@@ -95,7 +95,6 @@ public class FSConfigToCSConfigRuleHandler {
       properties.load(is);
     }
     actions = new HashMap<>();
-    initPropertyActions();
   }
 
   public FSConfigToCSConfigRuleHandler(ConversionOptions conversionOptions) {
@@ -113,7 +112,7 @@ public class FSConfigToCSConfigRuleHandler {
     initPropertyActions();
   }
 
-  private void initPropertyActions() {
+  public void initPropertyActions() {
     setActionForProperty(MAX_CAPACITY_PERCENTAGE);
     setActionForProperty(MAX_CHILD_CAPACITY);
     setActionForProperty(USER_MAX_RUNNING_APPS);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/converter/TestFSConfigToCSConfigConverter.java

@@ -26,6 +26,7 @@ import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.conve
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.USER_MAX_APPS_DEFAULT;
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.USER_MAX_RUNNING_APPS;
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.RuleAction.ABORT;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.RuleAction.WARNING;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
@@ -372,6 +373,41 @@ public class TestFSConfigToCSConfigConverter {
         ABORT, actions.get(QUEUE_AUTO_CREATE));
   }
 
+  @Test
+  public void testConvertFSConfigurationWithoutRulesFile() throws Exception {
+    ruleHandler = new FSConfigToCSConfigRuleHandler(
+        createDefaultConversionOptions());
+    createConverter();
+
+    FSConfigToCSConfigConverterParams params =
+        createDefaultParamsBuilder()
+            .withClusterResource(CLUSTER_RESOURCE_STRING)
+            .build();
+
+    converter.convert(params);
+
+    ruleHandler = converter.getRuleHandler();
+    Map<String, FSConfigToCSConfigRuleHandler.RuleAction> actions =
+        ruleHandler.getActions();
+
+    assertEquals("maxCapacityPercentage",
+        WARNING, actions.get(MAX_CAPACITY_PERCENTAGE));
+    assertEquals("maxChildCapacity",
+        WARNING, actions.get(MAX_CHILD_CAPACITY));
+    assertEquals("userMaxRunningApps",
+        WARNING, actions.get(USER_MAX_RUNNING_APPS));
+    assertEquals("userMaxAppsDefault",
+        WARNING, actions.get(USER_MAX_APPS_DEFAULT));
+    assertEquals("dynamicMaxAssign",
+        WARNING, actions.get(DYNAMIC_MAX_ASSIGN));
+    assertEquals("specifiedNotFirstRule",
+        WARNING, actions.get(SPECIFIED_NOT_FIRST));
+    assertEquals("reservationSystem",
+        WARNING, actions.get(RESERVATION_SYSTEM));
+    assertEquals("queueAutoCreate",
+        WARNING, actions.get(QUEUE_AUTO_CREATE));
+  }
+
   @Test
   public void testConvertFSConfigurationUndefinedYarnSiteConfig()
       throws Exception {