AMBARI-7988. Ensure that topology related properties with the value of 0.0.0.0 are exported to blueprint

ambari-server/src/main/java/org/apache/ambari/server/controller/internal/BlueprintConfigurationProcessor.java

@@ -341,7 +341,9 @@ public class BlueprintConfigurationProcessor {
           // remove properties that do not contain hostnames,
           // except in the case of HA-related properties, that
           // can contain nameservice references instead of hostnames (Fix for Bug AMBARI-7458).
-          if (! matchedHost && ! isNameServiceProperty(propertyName)) {
+          // also will not remove properties that reference the special 0.0.0.0 network
+          // address
+          if (! matchedHost && ! isNameServiceProperty(propertyName) && !isSpecialNetworkAddress(propValue)) {
             typeProperties.remove(propertyName);
           }
         }
@@ -362,6 +364,21 @@ public class BlueprintConfigurationProcessor {
     return configPropertiesWithHASupport.contains(propertyName);
   }
 
+  /**
+   * Queries a property value to determine if the value contains
+   *   a host address with all zeros (0.0.0.0).  This is a special
+   *   address that signifies that the service is available on
+   *   all network interfaces on a given machine.
+   *
+   * @param propertyValue the property value to inspect
+   *
+   * @return true if the 0.0.0.0 address is included in this string
+   *         false if the 0.0.0.0 address is not included in this string
+   */
+  private static boolean isSpecialNetworkAddress(String propertyValue) {
+    return propertyValue.contains("0.0.0.0");
+  }
+
   /**
    * Update multi host topology configuration properties for blueprint export.
    *

ambari-server/src/test/java/org/apache/ambari/server/controller/internal/BlueprintConfigurationProcessorTest.java

@@ -1695,6 +1695,72 @@ public class BlueprintConfigurationProcessorTest {
 
   }
 
+  @Test
+  public void testYarnConfigExportedWithDefaultZeroHostAddress() throws Exception {
+    final String expectedHostName = "c6401.apache.ambari.org";
+    final String expectedPortNum = "808080";
+    final String expectedHostGroupName = "host_group_1";
+
+    EasyMockSupport mockSupport = new EasyMockSupport();
+
+    HostGroup mockHostGroupOne = mockSupport.createMock(HostGroup.class);
+
+    expect(mockHostGroupOne.getHostInfo()).andReturn(Arrays.asList(expectedHostName, "serverTwo")).atLeastOnce();
+    expect(mockHostGroupOne.getName()).andReturn(expectedHostGroupName).atLeastOnce();
+
+    mockSupport.replayAll();
+
+    Map<String, Map<String, String>> configProperties =
+      new HashMap<String, Map<String, String>>();
+
+    Map<String, String> yarnSiteProperties =
+      new HashMap<String, String>();
+
+    configProperties.put("yarn-site", yarnSiteProperties);
+
+    // setup properties that include host information
+    yarnSiteProperties.put("yarn.log.server.url", "http://" + expectedHostName +":19888/jobhistory/logs");
+    yarnSiteProperties.put("yarn.resourcemanager.hostname", expectedHostName);
+    yarnSiteProperties.put("yarn.resourcemanager.resource-tracker.address", expectedHostName + ":" + expectedPortNum);
+    yarnSiteProperties.put("yarn.resourcemanager.webapp.address", expectedHostName + ":" + expectedPortNum);
+    yarnSiteProperties.put("yarn.resourcemanager.scheduler.address", expectedHostName + ":" + expectedPortNum);
+    yarnSiteProperties.put("yarn.resourcemanager.address", expectedHostName + ":" + expectedPortNum);
+    yarnSiteProperties.put("yarn.resourcemanager.admin.address", expectedHostName + ":" + expectedPortNum);
+    yarnSiteProperties.put("yarn.timeline-service.address", "0.0.0.0" + ":" + expectedPortNum);
+    yarnSiteProperties.put("yarn.timeline-service.webapp.address", "0.0.0.0" + ":" + expectedPortNum);
+    yarnSiteProperties.put("yarn.timeline-service.webapp.https.address", "0.0.0.0" + ":" + expectedPortNum);
+
+    BlueprintConfigurationProcessor configProcessor =
+      new BlueprintConfigurationProcessor(configProperties);
+
+    // call top-level export method
+    configProcessor.doUpdateForBlueprintExport(Arrays.asList(mockHostGroupOne));
+
+    assertEquals("Yarn Log Server URL was incorrectly exported",
+      "http://" + "%HOSTGROUP::" + expectedHostGroupName + "%" +":19888/jobhistory/logs", yarnSiteProperties.get("yarn.log.server.url"));
+    assertEquals("Yarn ResourceManager hostname was incorrectly exported",
+      createExportedHostName(expectedHostGroupName), yarnSiteProperties.get("yarn.resourcemanager.hostname"));
+    assertEquals("Yarn ResourceManager tracker address was incorrectly exported",
+      createExportedAddress(expectedPortNum, expectedHostGroupName), yarnSiteProperties.get("yarn.resourcemanager.resource-tracker.address"));
+    assertEquals("Yarn ResourceManager webapp address was incorrectly exported",
+      createExportedAddress(expectedPortNum, expectedHostGroupName), yarnSiteProperties.get("yarn.resourcemanager.webapp.address"));
+    assertEquals("Yarn ResourceManager scheduler address was incorrectly exported",
+      createExportedAddress(expectedPortNum, expectedHostGroupName), yarnSiteProperties.get("yarn.resourcemanager.scheduler.address"));
+    assertEquals("Yarn ResourceManager address was incorrectly exported",
+      createExportedAddress(expectedPortNum, expectedHostGroupName), yarnSiteProperties.get("yarn.resourcemanager.address"));
+    assertEquals("Yarn ResourceManager admin address was incorrectly exported",
+      createExportedAddress(expectedPortNum, expectedHostGroupName), yarnSiteProperties.get("yarn.resourcemanager.admin.address"));
+    assertEquals("Yarn ResourceManager timeline-service address was incorrectly exported",
+      "0.0.0.0" + ":" + expectedPortNum, yarnSiteProperties.get("yarn.timeline-service.address"));
+    assertEquals("Yarn ResourceManager timeline webapp address was incorrectly exported",
+      "0.0.0.0" + ":" + expectedPortNum, yarnSiteProperties.get("yarn.timeline-service.webapp.address"));
+    assertEquals("Yarn ResourceManager timeline webapp HTTPS address was incorrectly exported",
+      "0.0.0.0" + ":" + expectedPortNum, yarnSiteProperties.get("yarn.timeline-service.webapp.https.address"));
+
+    mockSupport.verifyAll();
+
+  }
+
   @Test
   public void testHDFSConfigExported() throws Exception {
     final String expectedHostName = "c6401.apache.ambari.org";