YARN-10168. FS-CS Converter: tool doesn't handle min/max resource conversion correctly. 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/FSConfigToCSConfigRuleHandler.java

@@ -55,6 +55,12 @@ public class FSConfigToCSConfigRuleHandler {
   public static final String MAX_CHILD_CAPACITY =
       "maxChildCapacity.action";
 
+  public static final String MAX_RESOURCES =
+      "maxResources.action";
+
+  public static final String MIN_RESOURCES =
+      "minResources.action";
+
   public static final String USER_MAX_RUNNING_APPS =
       "userMaxRunningApps.action";
 
@@ -118,6 +124,8 @@ public class FSConfigToCSConfigRuleHandler {
   public void initPropertyActions() {
     setActionForProperty(MAX_CAPACITY_PERCENTAGE);
     setActionForProperty(MAX_CHILD_CAPACITY);
+    setActionForProperty(MAX_RESOURCES);
+    setActionForProperty(MIN_RESOURCES);
     setActionForProperty(USER_MAX_RUNNING_APPS);
     setActionForProperty(USER_MAX_APPS_DEFAULT);
     setActionForProperty(DYNAMIC_MAX_ASSIGN);
@@ -138,6 +146,14 @@ public class FSConfigToCSConfigRuleHandler {
     handle(MAX_CHILD_CAPACITY, "<maxChildResources>", null);
   }
 
+  public void handleMaxResources() {
+    handle(MAX_RESOURCES, "<maxResources>", null);
+  }
+
+  public void handleMinResources() {
+    handle(MIN_RESOURCES, "<minResources>", null);
+  }
+
   public void handleChildQueueCount(String queue, int count) {
     String value = properties.getProperty(MAX_CHILD_QUEUE_LIMIT);
     if (value != null) {

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

@@ -27,7 +27,6 @@ import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
 
-import org.apache.commons.lang3.mutable.MutableBoolean;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.ConfigurableResource;
@@ -36,7 +35,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueue;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.DominantResourceFairnessPolicy;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FairSharePolicy;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FifoPolicy;
-import org.apache.hadoop.yarn.util.resource.ResourceUtils;
 import org.apache.hadoop.yarn.util.resource.Resources;
 
 /**
@@ -51,6 +49,7 @@ public class FSQueueConverter {
   private Configuration capacitySchedulerConfig;
   private final boolean preemptionEnabled;
   private final boolean sizeBasedWeight;
+  @SuppressWarnings("unused")
   private final Resource clusterResource;
   private final float queueMaxAMShareDefault;
   private final boolean autoCreateChildQueues;
@@ -168,47 +167,13 @@ public class FSQueueConverter {
     ConfigurableResource rawMaxShare = queue.getRawMaxShare();
     final Resource maxResource = rawMaxShare.getResource();
 
-    long memSize = 0;
+    if ((maxResource == null && rawMaxShare.getPercentages() != null)
-    long vCores = 0;
+        || isNotUnboundedResource(maxResource)) {
-    boolean defined = false;
+      ruleHandler.handleMaxResources();
-
-    if (maxResource == null) {
-      if (rawMaxShare.getPercentages() != null) {
-        if (clusterResource == null) {
-          String message = String.format(
-              "<maxResources> defined in percentages for" +
-              " queue %s, but cluster resource parameter is not" +
-              " defined via CLI!", queueName);
-
-          conversionOptions.handleConversionError(message);
-          return;
-        }
-
-        ruleHandler.handleMaxCapacityPercentage(queueName);
-
-        double[] percentages = rawMaxShare.getPercentages();
-        int memIndex = ResourceUtils.getResourceTypeIndex().get("memory-mb");
-        int vcoreIndex = ResourceUtils.getResourceTypeIndex().get("vcores");
-
-        memSize = (long) (percentages[memIndex] *
-            clusterResource.getMemorySize());
-        vCores = (long) (percentages[vcoreIndex] *
-            clusterResource.getVirtualCores());
-        defined = true;
-      } else {
-        conversionOptions.handlePreconditionError(
-            "Illegal ConfigurableResource object = " + rawMaxShare);
-      }
-    } else if (isNotUnboundedResource(maxResource)) {
-      memSize = maxResource.getMemorySize();
-      vCores = maxResource.getVirtualCores();
-      defined = true;
     }
 
-    if (defined) {
+    capacitySchedulerConfig.set(PREFIX + queueName + ".maximum-capacity",
-      capacitySchedulerConfig.set(PREFIX + queueName + ".maximum-capacity",
+        "100");
-          String.format("[memory=%d, vcores=%d]", memSize, vCores));
-    }
   }
 
   /**
@@ -330,7 +295,7 @@ public class FSQueueConverter {
     List<FSQueue> children = queue.getChildQueues();
 
     int totalWeight = getTotalWeight(children);
-    Map<String, Capacity> capacities = getCapacities(totalWeight, children);
+    Map<String, BigDecimal> capacities = getCapacities(totalWeight, children);
     capacities
         .forEach((key, value) -> capacitySchedulerConfig.set(PREFIX + key +
                 ".capacity", value.toString()));
@@ -353,23 +318,21 @@ public class FSQueueConverter {
     }
   }
 
-  private Map<String, Capacity> getCapacities(int totalWeight,
+  private Map<String, BigDecimal> getCapacities(int totalWeight,
       List<FSQueue> children) {
     final BigDecimal hundred = new BigDecimal(100).setScale(3);
 
     if (children.size() == 0) {
       return new HashMap<>();
     } else if (children.size() == 1) {
-      Map<String, Capacity> capacity = new HashMap<>();
+      Map<String, BigDecimal> capacity = new HashMap<>();
       String queueName = children.get(0).getName();
-      capacity.put(queueName, Capacity.newCapacity(hundred));
+      capacity.put(queueName, hundred);
 
       return capacity;
     } else {
-      Map<String, Capacity> capacities = new HashMap<>();
+      Map<String, BigDecimal> capacities = new HashMap<>();
-      Map<String, BigDecimal> bdCapacities = new HashMap<>();
 
-      MutableBoolean needVerifySum = new MutableBoolean(true);
       children
           .stream()
           .forEach(queue -> {
@@ -381,48 +344,28 @@ public class FSQueueConverter {
                               .multiply(hundred)
                               .setScale(3);
 
-            // <minResources> defined?
             if (Resources.none().compareTo(queue.getMinShare()) != 0) {
-              needVerifySum.setFalse();
+              ruleHandler.handleMinResources();
-
-              /* TODO: Needs discussion.
-               *
-               * Probably it's not entirely correct this way!
-               * Eg. root.queue1 in FS translates to 33%
-               * capacity, but minResources is defined as 1vcore,8GB
-               * which is less than 33%.
-               *
-               * Therefore max(calculatedCapacity, minResource) is
-               * more sound.
-               */
-              Resource minShare = queue.getMinShare();
-              // TODO: in Phase-2, we have to deal with other resources as well
-              String capacity = String.format("[memory=%d,vcores=%d]",
-                  minShare.getMemorySize(), minShare.getVirtualCores());
-              capacities.put(queue.getName(), Capacity.newCapacity(capacity));
-            } else {
-              capacities.put(queue.getName(), Capacity.newCapacity(pct));
-              bdCapacities.put(queue.getName(), pct);
             }
+
+            capacities.put(queue.getName(), pct);
           });
 
-      if (needVerifySum.isTrue()) {
+      BigDecimal totalPct = new BigDecimal(0);
-        BigDecimal totalPct = new BigDecimal(0);
+      for (Map.Entry<String, BigDecimal> entry : capacities.entrySet()) {
-        for (Map.Entry<String, BigDecimal> entry : bdCapacities.entrySet()) {
+        totalPct = totalPct.add(entry.getValue());
-          totalPct = totalPct.add(entry.getValue());
+      }
+
+      // fix last value if total != 100.000
+      if (!totalPct.equals(hundred)) {
+        BigDecimal tmp = new BigDecimal(0);
+        for (int i = 0; i < children.size() - 2; i++) {
+          tmp = tmp.add(capacities.get(children.get(i).getQueueName()));
         }
 
-        // fix last value if total != 100.000
+        String lastQueue = children.get(children.size() - 1).getName();
-        if (!totalPct.equals(hundred)) {
+        BigDecimal corrected = hundred.subtract(tmp);
-          BigDecimal tmp = new BigDecimal(0);
+        capacities.put(lastQueue, corrected);
-          for (int i = 0; i < children.size() - 2; i++) {
-            tmp = tmp.add(bdCapacities.get(children.get(i).getQueueName()));
-          }
-
-          String lastQueue = children.get(children.size() - 1).getName();
-          BigDecimal corrected = hundred.subtract(tmp);
-          capacities.put(lastQueue, Capacity.newCapacity(corrected));
-        }
       }
 
       return capacities;
@@ -445,38 +388,4 @@ public class FSQueueConverter {
   private boolean isNotUnboundedResource(Resource res) {
     return Resources.unbounded().compareTo(res) != 0;
   }
-
-  /*
-   * Represents a queue capacity in either percentage
-   * or in absolute resources
-   */
-  private static class Capacity {
-    private BigDecimal percentage;
-    private String absoluteResource;
-
-    public static Capacity newCapacity(BigDecimal pct) {
-      Capacity capacity = new Capacity();
-      capacity.percentage = pct;
-      capacity.absoluteResource = null;
-
-      return capacity;
-    }
-
-    public static Capacity newCapacity(String absoluteResource) {
-      Capacity capacity = new Capacity();
-      capacity.percentage = null;
-      capacity.absoluteResource = absoluteResource;
-
-      return capacity;
-    }
-
-    @Override
-    public String toString() {
-      if (percentage != null) {
-        return percentage.toString();
-      } else {
-        return absoluteResource;
-      }
-    }
-  }
 }

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

@@ -20,6 +20,8 @@ package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter;
 
 import java.io.File;
 
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -36,9 +38,15 @@ public class TestConvertedConfigValidator {
 
   @Before
   public void setup() {
+    QueueMetrics.clearQueueMetrics();
     validator = new ConvertedConfigValidator();
   }
 
+  @After
+  public void after() {
+    QueueMetrics.clearQueueMetrics();
+  }
+
   @Test
   public void testValidationPassed() throws Exception {
     validator.validateConvertedConfig(CONFIG_DIR_PASSES);

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

@@ -300,19 +300,6 @@ public class TestFSConfigToCSConfigConverter {
         converter.getClusterResource());
   }
 
-  @Test
-  public void testConvertFSConfigPctModeUsedAndClusterResourceNotDefined()
-      throws Exception {
-    FSConfigToCSConfigConverterParams params = createDefaultParamsBuilder()
-            .build();
-
-    expectedException.expect(ConversionException.class);
-    expectedException.expectMessage("cluster resource parameter" +
-        " is not defined via CLI");
-
-    converter.convert(params);
-  }
-
   @Test
   public void testConvertFSConfigurationClusterResourceInvalid()
       throws Exception {

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

@@ -18,6 +18,8 @@ package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter;
 
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.DYNAMIC_MAX_ASSIGN;
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.MAX_CAPACITY_PERCENTAGE;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.MAX_RESOURCES;
+import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.MIN_RESOURCES;
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.MAX_CHILD_CAPACITY;
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.MAX_CHILD_QUEUE_LIMIT;
 import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigRuleHandler.QUEUE_AUTO_CREATE;
@@ -69,6 +71,8 @@ public class TestFSConfigToCSConfigRuleHandler {
     ruleHandler.handleDynamicMaxAssign();
     ruleHandler.handleMaxCapacityPercentage("test");
     ruleHandler.handleMaxChildCapacity();
+    ruleHandler.handleMinResources();
+    ruleHandler.handleMaxResources();
     ruleHandler.handleQueueAutoCreate("test");
     ruleHandler.handleReservationSystem();
     ruleHandler.handleSpecifiedNotFirstRule();
@@ -81,6 +85,8 @@ public class TestFSConfigToCSConfigRuleHandler {
     Properties rules = new Properties();
     rules.put(DYNAMIC_MAX_ASSIGN, WARNING);
     rules.put(MAX_CAPACITY_PERCENTAGE, WARNING);
+    rules.put(MAX_RESOURCES, WARNING);
+    rules.put(MIN_RESOURCES, WARNING);
     rules.put(MAX_CHILD_CAPACITY, WARNING);
     rules.put(QUEUE_AUTO_CREATE, WARNING);
     rules.put(RESERVATION_SYSTEM, WARNING);
@@ -95,6 +101,8 @@ public class TestFSConfigToCSConfigRuleHandler {
     ruleHandler.handleDynamicMaxAssign();
     ruleHandler.handleMaxCapacityPercentage("test");
     ruleHandler.handleMaxChildCapacity();
+    ruleHandler.handleMinResources();
+    ruleHandler.handleMaxResources();
     ruleHandler.handleQueueAutoCreate("test");
     ruleHandler.handleReservationSystem();
     ruleHandler.handleSpecifiedNotFirstRule();
@@ -108,6 +116,8 @@ public class TestFSConfigToCSConfigRuleHandler {
     rules.put(DYNAMIC_MAX_ASSIGN, ABORT);
     rules.put(MAX_CAPACITY_PERCENTAGE, ABORT);
     rules.put(MAX_CHILD_CAPACITY, ABORT);
+    rules.put(MAX_RESOURCES, ABORT);
+    rules.put(MIN_RESOURCES, ABORT);
     rules.put(QUEUE_AUTO_CREATE, ABORT);
     rules.put(RESERVATION_SYSTEM, ABORT);
     rules.put(SPECIFIED_NOT_FIRST, ABORT);
@@ -125,6 +135,8 @@ public class TestFSConfigToCSConfigRuleHandler {
     expectAbort(() -> ruleHandler.handleDynamicMaxAssign());
     expectAbort(() -> ruleHandler.handleMaxCapacityPercentage("test"));
     expectAbort(() -> ruleHandler.handleMaxChildCapacity());
+    expectAbort(() -> ruleHandler.handleMaxResources());
+    expectAbort(() -> ruleHandler.handleMinResources());
     expectAbort(() -> ruleHandler.handleQueueAutoCreate("test"));
     expectAbort(() -> ruleHandler.handleReservationSystem());
     expectAbort(() -> ruleHandler.handleSpecifiedNotFirstRule());

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

@@ -79,7 +79,7 @@ public class TestFSQueueConverter {
   }
 
   private FSQueueConverter converter;
-  private Configuration config;
+  private Configuration yarnConfig;
   private Configuration csConfig;
   private FairScheduler fs;
   private FSQueue rootQueue;
@@ -95,9 +95,10 @@ public class TestFSQueueConverter {
 
   @Before
   public void setup() {
-    config = new Configuration(false);
+    yarnConfig = new Configuration(false);
-    config.set(FairSchedulerConfiguration.ALLOCATION_FILE, FAIR_SCHEDULER_XML);
+    yarnConfig.set(FairSchedulerConfiguration.ALLOCATION_FILE,
-    config.setBoolean(FairSchedulerConfiguration.MIGRATION_MODE, true);
+        FAIR_SCHEDULER_XML);
+    yarnConfig.setBoolean(FairSchedulerConfiguration.MIGRATION_MODE, true);
     csConfig = new Configuration(false);
     dryRunResultHolder = new DryRunResultHolder();
     conversionOptions =
@@ -123,7 +124,7 @@ public class TestFSQueueConverter {
 
     FairScheduler fairScheduler = new FairScheduler();
     fairScheduler.setRMContext(ctx);
-    fairScheduler.init(config);
+    fairScheduler.init(yarnConfig);
 
     return fairScheduler;
   }
@@ -187,7 +188,7 @@ public class TestFSQueueConverter {
     String absolutePath =
         new File("src/test/resources/fair-scheduler-sameleafqueue.xml")
           .getAbsolutePath();
-    config.set(FairSchedulerConfiguration.ALLOCATION_FILE,
+    yarnConfig.set(FairSchedulerConfiguration.ALLOCATION_FILE,
         FILE_PREFIX + absolutePath);
     fs.close();
     fs = createFairScheduler();
@@ -317,19 +318,17 @@ public class TestFSQueueConverter {
 
     converter.convertQueueHierarchy(rootQueue);
 
-    assertEquals("root.users.joe maximum capacity", "[memory=8192, vcores=8]",
+    assertValueForQueues(ALL_QUEUES, ".maximum-capacity", csConfig, "100");
-        csConfig.get(PREFIX + "root.users.joe.maximum-capacity"));
+    verify(ruleHandler, times(3)).handleMaxResources();
-    assertEquals("root.admins.bob maximum capacity", "[memory=8192, vcores=2]",
+  }
-        csConfig.get(PREFIX + "root.admins.bob.maximum-capacity"));
-    assertEquals("root.admins.alice maximum capacity",
-        "[memory=16384, vcores=4]",
-        csConfig.get(PREFIX + "root.admins.alice.maximum-capacity"));
 
-    Set<String> remaining = Sets.difference(ALL_QUEUES,
+  @Test
-        Sets.newHashSet("root.users.joe",
+  public void testQueueMinimumCapacity() {
-            "root.admins.bob",
+    converter = builder.build();
-            "root.admins.alice"));
+
-    assertNoValueForQueues(remaining, ".maximum-capacity", csConfig);
+    converter.convertQueueHierarchy(rootQueue);
+
+    verify(ruleHandler, times(2)).handleMinResources();
   }
 
   @Test
@@ -397,7 +396,7 @@ public class TestFSQueueConverter {
     String absolutePath =
         new File("src/test/resources/fair-scheduler-orderingpolicy.xml")
           .getAbsolutePath();
-    config.set(FairSchedulerConfiguration.ALLOCATION_FILE,
+    yarnConfig.set(FairSchedulerConfiguration.ALLOCATION_FILE,
         FILE_PREFIX + absolutePath);
     fs.close();
     fs = createFairScheduler();
@@ -434,7 +433,7 @@ public class TestFSQueueConverter {
     String absolutePath =
         new File("src/test/resources/fair-scheduler-orderingpolicy-mixed.xml")
           .getAbsolutePath();
-    config.set(FairSchedulerConfiguration.ALLOCATION_FILE,
+    yarnConfig.set(FairSchedulerConfiguration.ALLOCATION_FILE,
         FILE_PREFIX + absolutePath);
     fs.close();
     fs = createFairScheduler();
@@ -465,7 +464,8 @@ public class TestFSQueueConverter {
 
     Mockito.doThrow(new UnsupportedPropertyException("maxCapacity"))
       .when(ruleHandler).handleMaxChildCapacity();
-    config.setBoolean(YarnConfiguration.RM_RESERVATION_SYSTEM_ENABLE, true);
+    yarnConfig.setBoolean(YarnConfiguration.RM_RESERVATION_SYSTEM_ENABLE,
+        true);
 
     converter.convertQueueHierarchy(rootQueue);
   }
@@ -475,7 +475,7 @@ public class TestFSQueueConverter {
     String absolutePath =
         new File("src/test/resources/fair-scheduler-sameleafqueue.xml")
           .getAbsolutePath();
-    config.set(FairSchedulerConfiguration.ALLOCATION_FILE,
+    yarnConfig.set(FairSchedulerConfiguration.ALLOCATION_FILE,
         FILE_PREFIX + absolutePath);
     fs.close();
     fs = createFairScheduler();
@@ -492,23 +492,6 @@ public class TestFSQueueConverter {
         error.contains("Leaf queues must be unique"));
   }
 
-  @Test
-  public void testDryRunWithNoClusterResource() {
-    builder.withClusterResource(null);
-    prepareDryRunConverter();
-
-    rootQueue = fs.getQueueManager().getRootQueue();
-
-    converter.convertQueueHierarchy(rootQueue);
-
-    assertEquals("Dry run errors", 1, dryRunResultHolder.getErrors().size());
-    assertEquals("Dry run warnings", 0,
-        dryRunResultHolder.getWarnings().size());
-    String error = dryRunResultHolder.getErrors().iterator().next();
-    assertTrue("Unexpected error message",
-        error.contains("<maxResources> defined in percentages"));
-  }
-
   private void assertNoValueForQueues(Set<String> queues, String postfix,
       Configuration config) {
     for (String queue : queues) {
@@ -518,6 +501,15 @@ public class TestFSQueueConverter {
     }
   }
 
+  private void assertValueForQueues(Set<String> queues, String postfix,
+      Configuration config, String expectedValue) {
+    for (String queue : queues) {
+      String key = PREFIX + queue + postfix;
+      assertEquals("Key " + key + " has different value",
+          expectedValue, config.get(key));
+    }
+  }
+
   private void assertTrueForQueues(Set<String> queues, String postfix,
       Configuration config) {
     for (String queue : queues) {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/resources/fair-scheduler-conversion.xml

@@ -31,6 +31,7 @@
             <schedulingPolicy>drf</schedulingPolicy>
             <queue name="john">
                 <weight>1.0</weight>
+                <minResources>memory-mb=4096, vcores=1</minResources>
                 <schedulingPolicy>drf</schedulingPolicy>
                 <aclSubmitApps>john </aclSubmitApps>
                 <aclAdministerApps>john </aclAdministerApps>
@@ -38,6 +39,7 @@
             </queue>
             <queue name="joe">
                 <maxResources>memory-mb=50.0%, vcores=50.0%</maxResources>
+                <minResources>memory-mb=4096, vcores=1</minResources>
                 <weight>3.0</weight>
                 <allowPreemptionFrom>false</allowPreemptionFrom>
                 <schedulingPolicy>drf</schedulingPolicy>