Revert "SLIDER-875 initial uber app support"

This reverts commit 17096ffd0562279aaf082004e2f774711b37c56f.


Project: http://git-wip-us.apache.org/repos/asf/incubator-slider/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-slider/commit/c0f4e922
Tree: http://git-wip-us.apache.org/repos/asf/incubator-slider/tree/c0f4e922
Diff: http://git-wip-us.apache.org/repos/asf/incubator-slider/diff/c0f4e922

Branch: refs/heads/feature/SLIDER-1107_AM_config_generation
Commit: c0f4e922086fb0cda0751054ddbac6e23e3c9f8c
Parents: 17096ff
Author: Billie Rinaldi <billie.rina...@gmail.com>
Authored: Thu Jun 23 08:41:27 2016 -0700
Committer: Billie Rinaldi <billie.rina...@gmail.com>
Committed: Thu Jun 23 08:41:27 2016 -0700

----------------------------------------------------------------------
 .../org/apache/slider/client/SliderClient.java  |   4 +-
 .../org/apache/slider/common/SliderKeys.java    |   7 -
 .../apache/slider/common/tools/SliderUtils.java |  79 --------
 .../slider/core/build/InstanceBuilder.java      | 148 ---------------
 .../slider/core/conf/ConfTreeOperations.java    |  11 --
 .../providers/AbstractProviderService.java      |   3 +-
 .../slider/providers/ProviderService.java       |   4 +-
 .../providers/agent/AgentClientProvider.java    |  30 ++-
 .../slider/providers/agent/AgentKeys.java       |   2 -
 .../providers/agent/AgentProviderService.java   | 181 ++++++-------------
 .../slider/providers/agent/AgentUtils.java      |  24 ---
 .../providers/agent/ComponentCommandOrder.java  |   6 -
 .../server/appmaster/SliderAppMaster.java       |   3 +-
 .../appmaster/web/rest/agent/AgentResource.java |   4 +-
 .../sleep_cmd/appConfig_external_component.json |  12 --
 .../sleep_cmd/resources_external_component.json |  22 ---
 .../slider/client/TestReplaceTokens.groovy      |   5 +-
 .../model/mock/MockProviderService.groovy       |   3 +-
 .../agent/TestAgentProviderService.java         |  36 ++--
 .../apache/slider/funtest/ResourcePaths.groovy  |   2 -
 .../funtest/misc/ExternalComponentIT.groovy     | 133 --------------
 21 files changed, 93 insertions(+), 626 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/client/SliderClient.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/client/SliderClient.java 
b/slider-core/src/main/java/org/apache/slider/client/SliderClient.java
index 372ec48..dd90e46 100644
--- a/slider-core/src/main/java/org/apache/slider/client/SliderClient.java
+++ b/slider-core/src/main/java/org/apache/slider/client/SliderClient.java
@@ -1597,7 +1597,6 @@ public class SliderClient extends 
AbstractSliderLaunchedService implements RunSe
     resources.mergeComponents(buildInfo.getResourceCompOptionMap());
 
     builder.init(providerName, instanceDefinition);
-    builder.resolve();
     builder.propagateFilename();
     builder.propagatePrincipals();
     builder.setImageDetailsIfAvailable(buildInfo.getImage(),
@@ -1787,7 +1786,8 @@ public class SliderClient extends 
AbstractSliderLaunchedService implements RunSe
   private static String replaceTokens(String s, String userName,
       String clusterName) throws IOException {
     return s.replaceAll(Pattern.quote("${USER}"), userName)
-        .replaceAll(Pattern.quote("${USER_NAME}"), userName);
+        .replaceAll(Pattern.quote("${USER_NAME}"), userName)
+        .replaceAll(Pattern.quote("${CLUSTER_NAME}"), clusterName);
   }
 
   public FsPermission getClusterDirectoryPermissions(Configuration conf) {

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/common/SliderKeys.java
----------------------------------------------------------------------
diff --git a/slider-core/src/main/java/org/apache/slider/common/SliderKeys.java 
b/slider-core/src/main/java/org/apache/slider/common/SliderKeys.java
index 3921324..05c7048 100644
--- a/slider-core/src/main/java/org/apache/slider/common/SliderKeys.java
+++ b/slider-core/src/main/java/org/apache/slider/common/SliderKeys.java
@@ -70,13 +70,6 @@ public interface SliderKeys extends SliderXmlConfKeys {
   String APP_TYPE = "org-apache-slider";
 
   /**
-   * Key for component type. This MUST NOT be set in app_config/global {@value}
-   */
-  String COMPONENT_TYPE = "site.global.component_type";
-  String EXTERNAL_COMPONENT = "external";
-  String COMPONENT_SEPARATOR = "-";
-
-  /**
    * Key for application version. This must be set in app_config/global 
{@value}
    */
   String APP_VERSION = "site.global.app_version";

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/common/tools/SliderUtils.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/common/tools/SliderUtils.java 
b/slider-core/src/main/java/org/apache/slider/common/tools/SliderUtils.java
index c48e109..746e468 100644
--- a/slider-core/src/main/java/org/apache/slider/common/tools/SliderUtils.java
+++ b/slider-core/src/main/java/org/apache/slider/common/tools/SliderUtils.java
@@ -69,7 +69,6 @@ import org.apache.slider.core.exceptions.SliderException;
 import org.apache.slider.core.launch.ClasspathConstructor;
 import org.apache.slider.core.main.LauncherExitCodes;
 import org.apache.slider.providers.agent.AgentKeys;
-import org.apache.slider.providers.agent.application.metadata.Component;
 import org.apache.slider.server.services.utility.PatternValidator;
 import org.apache.slider.server.services.workflow.ForkedProcessService;
 import org.apache.zookeeper.server.util.KerberosUtil;
@@ -476,32 +475,6 @@ public final class SliderUtils {
     return srcFileCount;
   }
 
-  /**
-   * Copy a file to a new FS -both paths must be qualified.
-   * @param conf conf file
-   * @param srcFile src file
-   * @param destFile dest file
-   */
-  public static void copy(Configuration conf,
-      Path srcFile,
-      Path destFile) throws
-      IOException,
-      BadClusterStateException {
-    FileSystem srcFS = FileSystem.get(srcFile.toUri(), conf);
-    //list all paths in the src.
-    if (!srcFS.exists(srcFile)) {
-      throw new FileNotFoundException("Source dir not found " + srcFile);
-    }
-    if (!srcFS.isFile(srcFile)) {
-      throw new FileNotFoundException(
-          "Source dir not a file " + srcFile);
-    }
-    FileSystem destFS = FileSystem.get(destFile.toUri(), conf);
-    if (destFS.exists(destFile)) {
-      throw new IOException("Dest file already exists " + destFile);
-    }
-    FileUtil.copy(srcFS, srcFile, destFS, destFile, false, true, conf);
-  }
 
   public static String stringify(Throwable t) {
     StringWriter sw = new StringWriter();
@@ -954,38 +927,6 @@ public final class SliderUtils {
   }
 
   /**
-   * Merge string maps excluding prefixes
-   * @param first first map
-   * @param second second map
-   * @param  prefixes prefixes to ignore
-   * @return 'first' merged with the second
-   */
-  public static Map<String, String> mergeMapsIgnorePrefixes(
-      Map<String, String> first, Map<String, String> second,
-      String... prefixes) {
-    Preconditions.checkArgument(first != null, "Null 'first' value");
-    Preconditions.checkArgument(second != null, "Null 'second' value");
-    Preconditions.checkArgument(prefixes != null, "Null 'prefixes' value");
-    for (Map.Entry<String, String> entry : second.entrySet()) {
-      String key = entry.getKey();
-      boolean hasPrefix = false;
-      for (String prefix : prefixes) {
-        if (key.startsWith(prefix)) {
-          hasPrefix = true;
-          break;
-        }
-      }
-      if (hasPrefix) {
-        continue;
-      }
-      if (!first.containsKey(key)) {
-        first.put(key, entry.getValue());
-      }
-    }
-    return first;
-  }
-
-  /**
    * Convert a map to a multi-line string for printing
    * @param map map to stringify
    * @return a string representation of the map
@@ -2399,28 +2340,8 @@ public final class SliderUtils {
    */
   public static String getApplicationDefinitionPath(ConfTreeOperations conf)
       throws BadConfigException {
-    return getApplicationDefinitionPath(conf, null);
-  }
-
-  /**
-   * return the HDFS path where the application package has been uploaded
-   * manually or by using slider client (install package command)
-   *
-   * @param conf configuration
-   * @param roleGroup name of component
-   * @return
-   */
-  public static String getApplicationDefinitionPath(ConfTreeOperations conf,
-      String roleGroup)
-      throws BadConfigException {
     String appDefPath = conf.getGlobalOptions().getMandatoryOption(
         AgentKeys.APP_DEF);
-    if (roleGroup != null) {
-      MapOperations component = conf.getComponent(roleGroup);
-      if (component != null) {
-        appDefPath = component.getOption(AgentKeys.APP_DEF, appDefPath);
-      }
-    }
     return appDefPath;
   }
 

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/core/build/InstanceBuilder.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/core/build/InstanceBuilder.java 
b/slider-core/src/main/java/org/apache/slider/core/build/InstanceBuilder.java
index 4afdf7c..7756055 100644
--- 
a/slider-core/src/main/java/org/apache/slider/core/build/InstanceBuilder.java
+++ 
b/slider-core/src/main/java/org/apache/slider/core/build/InstanceBuilder.java
@@ -25,9 +25,7 @@ import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.slider.api.InternalKeys;
 import org.apache.slider.api.OptionKeys;
-import org.apache.slider.api.ResourceKeys;
 import org.apache.slider.api.StatusKeys;
-import org.apache.slider.common.SliderKeys;
 import org.apache.slider.common.SliderXmlConfKeys;
 import org.apache.slider.common.tools.CoreFileSystem;
 import org.apache.slider.common.tools.SliderUtils;
@@ -44,17 +42,11 @@ import 
org.apache.slider.core.persist.LockAcquireFailedException;
 import org.apache.slider.core.persist.LockHeldAction;
 import org.apache.slider.core.zk.ZKPathBuilder;
 import org.apache.slider.core.zk.ZookeeperUtils;
-import org.apache.slider.providers.agent.AgentKeys;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
-import java.util.HashMap;
-import java.util.HashSet;
 import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-import java.util.TreeSet;
 
 import static org.apache.slider.api.InternalKeys.INTERNAL_ADDONS_DIR_PATH;
 import static org.apache.slider.api.InternalKeys.INTERNAL_APPDEF_DIR_PATH;
@@ -69,11 +61,6 @@ import static 
org.apache.slider.api.OptionKeys.INTERNAL_SNAPSHOT_CONF_PATH;
 import static org.apache.slider.api.OptionKeys.ZOOKEEPER_HOSTS;
 import static org.apache.slider.api.OptionKeys.ZOOKEEPER_PATH;
 import static org.apache.slider.api.OptionKeys.ZOOKEEPER_QUORUM;
-import static org.apache.slider.common.SliderKeys.COMPONENT_AM;
-import static org.apache.slider.common.SliderKeys.COMPONENT_SEPARATOR;
-import static org.apache.slider.common.SliderKeys.COMPONENT_TYPE;
-import static org.apache.slider.common.SliderKeys.EXTERNAL_COMPONENT;
-import static org.apache.slider.common.tools.SliderUtils.isClusternameValid;
 
 /**
  * Build up the instance of a cluster.
@@ -85,8 +72,6 @@ public class InstanceBuilder {
   private final CoreFileSystem coreFS;
   private final InstancePaths instancePaths;
   private AggregateConf instanceDescription;
-  private Map<Path, Path> externalAppDefs = new HashMap<>();
-  private TreeSet<Integer> priorities = new TreeSet<>();
 
   private static final Logger log =
     LoggerFactory.getLogger(InstanceBuilder.class);
@@ -259,136 +244,6 @@ public class InstanceBuilder {
   }
 
 
-  private void getExternalComponents(ConfTreeOperations ops,
-      Set<String> externalComponents) throws BadConfigException {
-    if (ops.getGlobalOptions().get(COMPONENT_TYPE) != null) {
-      throw new BadConfigException(COMPONENT_TYPE + " must be " +
-          "specified per-component, not in global");
-    }
-
-    for (Entry<String, Map<String, String>> entry : ops.getComponents()
-        .entrySet()) {
-      if (COMPONENT_AM.equals(entry.getKey())) {
-        continue;
-      }
-      Map<String, String> options = entry.getValue();
-      if (options.containsKey(COMPONENT_TYPE) &&
-          EXTERNAL_COMPONENT.equals(options.get(COMPONENT_TYPE))) {
-        externalComponents.add(entry.getKey());
-      }
-    }
-  }
-
-  private static String[] PREFIXES_TO_SKIP = {"zookeeper.",
-      "env.MALLOC_ARENA_MAX", "site.fs.", "site.dfs."};
-
-  private void mergeExternalComponent(ConfTreeOperations ops,
-      ConfTreeOperations externalOps, String externalComponent,
-      Integer priority) {
-    for (String subComponent : externalOps.getComponentNames()) {
-      if (COMPONENT_AM.equals(subComponent)) {
-        continue;
-      }
-      log.debug("Merging options for {} into {}", subComponent,
-          externalComponent + COMPONENT_SEPARATOR + subComponent);
-      MapOperations subComponentOps = ops.getOrAddComponent(externalComponent +
-          COMPONENT_SEPARATOR + subComponent);
-      SliderUtils.mergeMapsIgnorePrefixes(subComponentOps,
-          externalOps.getComponent(subComponent), PREFIXES_TO_SKIP);
-      if (priority != null) {
-        subComponentOps.put(ResourceKeys.COMPONENT_PRIORITY,
-            Integer.toString(priority));
-        priorities.add(priority);
-        priority++;
-      }
-    }
-  }
-
-  private int getNextPriority() {
-    if (priorities.isEmpty()) {
-      return 1;
-    } else {
-      return priorities.last() + 1;
-    }
-  }
-
-  public void resolve()
-      throws BadConfigException, IOException, BadClusterStateException {
-    ConfTreeOperations appConf = instanceDescription.getAppConfOperations();
-    ConfTreeOperations resources = instanceDescription.getResourceOperations();
-
-    for (Entry<String, Map<String, String>> entry : resources.getComponents()
-        .entrySet()) {
-      if (COMPONENT_AM.equals(entry.getKey())) {
-        continue;
-      }
-      if (entry.getKey().contains(COMPONENT_SEPARATOR)) {
-        throw new BadConfigException("Components must not contain " +
-            COMPONENT_SEPARATOR + ": " + entry.getKey());
-      }
-      if (entry.getValue().containsKey(ResourceKeys.COMPONENT_PRIORITY)) {
-        priorities.add(Integer.parseInt(entry.getValue().get(
-            ResourceKeys.COMPONENT_PRIORITY)));
-      }
-    }
-
-    Set<String> externalComponents = new HashSet<>();
-    getExternalComponents(appConf, externalComponents);
-    if (!externalComponents.isEmpty()) {
-      log.info("Found external components {}", externalComponents);
-    }
-
-    for (String component : externalComponents) {
-      if (!isClusternameValid(component)) {
-        throw new BadConfigException(component + " is not a valid external " +
-            "component");
-      }
-      Path componentClusterDir = coreFS.buildClusterDirPath(component);
-      try {
-        coreFS.verifyPathExists(componentClusterDir);
-      } catch (IOException e) {
-        throw new BadConfigException("external component " + component +
-            " doesn't exist");
-      }
-      AggregateConf componentConf = new AggregateConf();
-      ConfPersister persister = new ConfPersister(coreFS, componentClusterDir);
-      try {
-        persister.load(componentConf);
-      } catch (Exception e) {
-        throw new BadConfigException("Couldn't read configuration for " +
-            "external component " + component);
-      }
-      String externalAppDef = componentConf.getAppConfOperations()
-          .getGlobalOptions().get(AgentKeys.APP_DEF);
-      if (SliderUtils.isSet(externalAppDef)) {
-        Path newAppDef = new Path(coreFS.buildAppDefDirPath(clustername),
-            component + "_" + SliderKeys.DEFAULT_APP_PKG);
-        componentConf.getAppConfOperations().set(AgentKeys.APP_DEF, newAppDef);
-        externalAppDefs.put(newAppDef, new Path(externalAppDef));
-      }
-      for (String rcomp : componentConf.getResourceOperations()
-          .getComponentNames()) {
-        if (COMPONENT_AM.equals(rcomp)) {
-          continue;
-        }
-        log.debug("Adding component {} to appConf for {}", rcomp, component);
-        componentConf.getAppConfOperations().getOrAddComponent(rcomp);
-      }
-      SliderUtils.mergeMaps(
-          componentConf.getAppConfOperations().getGlobalOptions().options,
-          appConf.getComponent(component).options);
-      componentConf.getAppConfOperations().getGlobalOptions()
-          .remove(COMPONENT_TYPE);
-      componentConf.resolve();
-
-      mergeExternalComponent(appConf, componentConf.getAppConfOperations(),
-          component, null);
-      mergeExternalComponent(resources, componentConf.getResourceOperations(),
-          component, getNextPriority());
-    }
-  }
-
-
   /**
    * Persist this
    * @param appconfdir conf dir
@@ -411,9 +266,6 @@ public class InstanceBuilder {
       action = new ConfDirSnapshotAction(appconfdir);
     }
     persister.save(instanceDescription, action);
-    for (Entry<Path, Path> appDef : externalAppDefs.entrySet()) {
-      SliderUtils.copy(conf, appDef.getValue(), appDef.getKey());
-    }
   }
 
   /**

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/core/conf/ConfTreeOperations.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/core/conf/ConfTreeOperations.java 
b/slider-core/src/main/java/org/apache/slider/core/conf/ConfTreeOperations.java
index 4a0ae41..9013edb 100644
--- 
a/slider-core/src/main/java/org/apache/slider/core/conf/ConfTreeOperations.java
+++ 
b/slider-core/src/main/java/org/apache/slider/core/conf/ConfTreeOperations.java
@@ -257,17 +257,6 @@ public class ConfTreeOperations {
                                             Map<String, String> map,
                                             String prefix,
                                             boolean overwrite) {
-    boolean needsMerge = false;
-    for (Map.Entry<String, String> entry : map.entrySet()) {
-      String key = entry.getKey();
-      if (key.startsWith(prefix)) {
-        needsMerge = true;
-        break;
-      }
-    }
-    if (!needsMerge) {
-      return;
-    }
     MapOperations comp = getOrAddComponent(component);
     comp.mergeMapPrefixedKeys(map,prefix, overwrite);
   }

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/providers/AbstractProviderService.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/providers/AbstractProviderService.java
 
b/slider-core/src/main/java/org/apache/slider/providers/AbstractProviderService.java
index 92766f5..61b2655 100644
--- 
a/slider-core/src/main/java/org/apache/slider/providers/AbstractProviderService.java
+++ 
b/slider-core/src/main/java/org/apache/slider/providers/AbstractProviderService.java
@@ -169,8 +169,7 @@ public abstract class AbstractProviderService
    */
   @Override
   public void initializeApplicationConfiguration(
-      AggregateConf instanceDefinition, SliderFileSystem fileSystem,
-      String roleGroup)
+      AggregateConf instanceDefinition, SliderFileSystem fileSystem)
       throws IOException, SliderException {
   }
 

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/providers/ProviderService.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/providers/ProviderService.java 
b/slider-core/src/main/java/org/apache/slider/providers/ProviderService.java
index 3f24665..f754eee 100644
--- a/slider-core/src/main/java/org/apache/slider/providers/ProviderService.java
+++ b/slider-core/src/main/java/org/apache/slider/providers/ProviderService.java
@@ -118,13 +118,11 @@ public interface ProviderService extends ProviderCore,
    * 
    * @param instanceDefinition
    * @param fileSystem
-   * @param roleGroup
    * @throws IOException
    * @throws SliderException
    */
   void initializeApplicationConfiguration(AggregateConf instanceDefinition,
-      SliderFileSystem fileSystem, String roleGroup) throws IOException,
-      SliderException;
+      SliderFileSystem fileSystem) throws IOException, SliderException;
 
   /**
    * This is a validation of the application configuration on the AM.

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/providers/agent/AgentClientProvider.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentClientProvider.java
 
b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentClientProvider.java
index 6eae75e..f3dcd1d 100644
--- 
a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentClientProvider.java
+++ 
b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentClientProvider.java
@@ -74,8 +74,6 @@ import java.util.Set;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
-import static 
org.apache.slider.providers.agent.AgentUtils.getMetainfoComponentName;
-
 /** This class implements  the client-side aspects of the agent deployer */
 public class AgentClientProvider extends AbstractClientProvider
     implements AgentKeys, SliderKeys {
@@ -170,21 +168,13 @@ public class AgentClientProvider extends 
AbstractClientProvider
     names.remove(SliderKeys.COMPONENT_AM);
     Map<Integer, String> priorityMap = new HashMap<Integer, String>();
 
-    for (String name : names) {
-      try {
-        // Validate the app definition
-        appDef = SliderUtils.getApplicationDefinitionPath(instanceDefinition
-            .getAppConfOperations(), name);
-      } catch (BadConfigException bce) {
-        throw new BadConfigException("Application definition must be provided. 
" + bce.getMessage());
-      }
-      Metainfo metaInfo = getMetainfo(fs, appDef);
+    Metainfo metaInfo = getMetainfo(fs, appDef);
 
+    for (String name : names) {
       MapOperations component = resources.getMandatoryComponent(name);
 
       if (metaInfo != null) {
-        Component componentDef = metaInfo.getApplicationComponent(
-            getMetainfoComponentName(name));
+        Component componentDef = metaInfo.getApplicationComponent(name);
         if (componentDef == null) {
           throw new BadConfigException(
               "Component %s is not a member of application.", name);
@@ -210,12 +200,16 @@ public class AgentClientProvider extends 
AbstractClientProvider
             existing);
       }
       priorityMap.put(priority, name);
+    }
 
-      // fileSystem may be null for tests
-      if (metaInfo != null) {
-        Component componentDef = metaInfo.getApplicationComponent(
-            getMetainfoComponentName(name));
-        // already checked it wasn't null
+    // fileSystem may be null for tests
+    if (metaInfo != null) {
+      for (String name : names) {
+        Component componentDef = metaInfo.getApplicationComponent(name);
+        if (componentDef == null) {
+          throw new BadConfigException(
+              "Component %s is not a member of application.", name);
+        }
 
         // ensure that intance count is 0 for client components
         if ("CLIENT".equals(componentDef.getCategory())) {

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/providers/agent/AgentKeys.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentKeys.java 
b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentKeys.java
index 8514401..b027939 100644
--- a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentKeys.java
+++ b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentKeys.java
@@ -97,8 +97,6 @@ public interface AgentKeys {
   String CERT_FILE_LOCALIZATION_PATH = INFRA_RUN_SECURITY_DIR + "ca.crt";
   String KEY_CONTAINER_LAUNCH_DELAY = "container.launch.delay.sec";
   String TEST_RELAX_VERIFICATION = "test.relax.validation";
-
-  String DEFAULT_METAINFO_MAP_KEY = "DEFAULT";
 }
 
 

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/providers/agent/AgentProviderService.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentProviderService.java
 
b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentProviderService.java
index 66fac99..f20757a 100644
--- 
a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentProviderService.java
+++ 
b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentProviderService.java
@@ -71,7 +71,6 @@ import org.apache.slider.providers.ProviderRole;
 import org.apache.slider.providers.ProviderUtils;
 import 
org.apache.slider.providers.agent.application.metadata.AbstractComponent;
 import org.apache.slider.providers.agent.application.metadata.Application;
-import org.apache.slider.providers.agent.application.metadata.CommandOrder;
 import org.apache.slider.providers.agent.application.metadata.CommandScript;
 import org.apache.slider.providers.agent.application.metadata.Component;
 import org.apache.slider.providers.agent.application.metadata.ComponentCommand;
@@ -125,6 +124,7 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Scanner;
 import java.util.Set;
 import java.util.TreeMap;
@@ -132,8 +132,8 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.regex.Pattern;
 
-import static org.apache.slider.providers.agent.AgentUtils.getMetainfoMapKey;
 import static 
org.apache.slider.server.appmaster.web.rest.RestPaths.SLIDER_PATH_AGENTS;
 
 /**
@@ -168,8 +168,9 @@ public class AgentProviderService extends 
AbstractProviderService implements
   private int heartbeatMonitorInterval = 0;
   private AgentClientProvider clientProvider;
   private AtomicInteger taskId = new AtomicInteger(0);
-  private volatile Map<String, MetainfoHolder> metaInfoMap = new HashMap<>();
-  private ComponentCommandOrder commandOrder = new ComponentCommandOrder();
+  private volatile Metainfo metaInfo = null;
+  private Map<String, DefaultConfig> defaultConfigs = null;
+  private ComponentCommandOrder commandOrder = null;
   private HeartbeatMonitor monitor;
   private Boolean canAnyMasterPublish = null;
   private AgentLaunchParameter agentLaunchParameter = null;
@@ -204,17 +205,6 @@ public class AgentProviderService extends 
AbstractProviderService implements
   private final Map<String, Set<String>> containerExportsMap =
       new HashMap<String, Set<String>>();
 
-  private static class MetainfoHolder {
-    Metainfo metaInfo;
-    private Map<String, DefaultConfig> defaultConfigs = null;
-
-    public MetainfoHolder(Metainfo metaInfo,
-        Map<String, DefaultConfig> defaultConfigs) {
-      this.metaInfo = metaInfo;
-      this.defaultConfigs = defaultConfigs;
-    }
-  }
-
   /**
    * Create an instance of AgentProviderService
    */
@@ -259,11 +249,10 @@ public class AgentProviderService extends 
AbstractProviderService implements
     Set<String> names = resources.getComponentNames();
     names.remove(SliderKeys.COMPONENT_AM);
     for (String name : names) {
-      Component componentDef = getApplicationComponent(name);
+      Component componentDef = getMetaInfo().getApplicationComponent(name);
       if (componentDef == null) {
-        // component member is validated elsewhere, so we don't need to throw
-        // an exception here
-        continue;
+        throw new BadConfigException(
+            "Component %s is not a member of application.", name);
       }
 
       MapOperations componentConfig = resources.getMandatoryComponent(name);
@@ -285,62 +274,31 @@ public class AgentProviderService extends 
AbstractProviderService implements
 
   // Reads the metainfo.xml in the application package and loads it
   private void buildMetainfo(AggregateConf instanceDefinition,
-                             SliderFileSystem fileSystem,
-                             String roleGroup)
-      throws IOException, SliderException {
-    String mapKey = getMetainfoMapKey(roleGroup);
-    String appDef = SliderUtils.getApplicationDefinitionPath(
-        instanceDefinition.getAppConfOperations(), roleGroup);
-    MapOperations component = null;
-    if (roleGroup != null) {
-      component = 
instanceDefinition.getAppConfOperations().getComponent(roleGroup);
-    }
+                             SliderFileSystem fileSystem) throws IOException, 
SliderException {
+    String appDef = SliderUtils.getApplicationDefinitionPath(instanceDefinition
+        .getAppConfOperations());
 
-    MetainfoHolder metaInfoHolder = metaInfoMap.get(mapKey);
-    if (metaInfoHolder == null) {
+    if (metaInfo == null) {
       synchronized (syncLock) {
-        metaInfoHolder = metaInfoMap.get(mapKey);
-        if (metaInfoHolder == null) {
+        if (metaInfo == null) {
           readAndSetHeartbeatMonitoringInterval(instanceDefinition);
           initializeAgentDebugCommands(instanceDefinition);
 
-          Metainfo metaInfo = getApplicationMetainfo(fileSystem, appDef, 
false);
+          metaInfo = getApplicationMetainfo(fileSystem, appDef, false);
           log.info("Master package metainfo: {}", metaInfo.toString());
           if (metaInfo == null || metaInfo.getApplication() == null) {
             log.error("metainfo.xml is unavailable or malformed at {}.", 
appDef);
             throw new SliderException(
                 "metainfo.xml is required in app package.");
           }
-          List<CommandOrder> commandOrders = metaInfo.getApplication()
-              .getCommandOrders();
-          if (!DEFAULT_METAINFO_MAP_KEY.equals(mapKey)) {
-            for (Component comp : metaInfo.getApplication().getComponents()) {
-              comp.setName(mapKey + comp.getName());
-              log.info("Modifying external metainfo component name to {}",
-                  comp.getName());
-            }
-            String commandPrefix = mapKey.substring(0,
-                mapKey.indexOf(COMPONENT_SEPARATOR)+1);
-            for (CommandOrder co : commandOrders) {
-              log.info("Adding prefix {} to command order {}",
-                  commandPrefix, co);
-              co.setCommand(commandPrefix + co.getCommand());
-              co.setRequires(commandPrefix + co.getRequires());
-            }
-          }
-          commandOrder.mergeCommandOrders(commandOrders);
-          Map<String, DefaultConfig> defaultConfigs =
-              initializeDefaultConfigs(fileSystem, appDef, metaInfo);
-          metaInfoMap.put(mapKey, new MetainfoHolder(metaInfo, 
defaultConfigs));
+          commandOrder = new 
ComponentCommandOrder(metaInfo.getApplication().getCommandOrders());
+          defaultConfigs = initializeDefaultConfigs(fileSystem, appDef, 
metaInfo);
           monitor = new HeartbeatMonitor(this, getHeartbeatMonitorInterval());
           monitor.start();
 
           // build a map from component to metainfo
           String addonAppDefString = instanceDefinition.getAppConfOperations()
               .getGlobalOptions().getOption(AgentKeys.ADDONS, null);
-          if (component != null) {
-            addonAppDefString = component.getOption(AgentKeys.ADDONS, 
addonAppDefString);
-          }
           log.debug("All addon appdefs: {}", addonAppDefString);
           if (addonAppDefString != null) {
             Scanner scanner = new Scanner(addonAppDefString).useDelimiter(",");
@@ -348,9 +306,6 @@ public class AgentProviderService extends 
AbstractProviderService implements
               String addonAppDef = scanner.next();
               String addonAppDefPath = instanceDefinition
                   .getAppConfOperations().getGlobalOptions().get(addonAppDef);
-              if (component != null) {
-                addonAppDefPath = component.getOption(addonAppDef, 
addonAppDefPath);
-              }
               log.debug("Addon package {} is stored at: {}", addonAppDef
                   + addonAppDefPath);
               Metainfo addonMetaInfo = getApplicationMetainfo(fileSystem,
@@ -369,10 +324,9 @@ public class AgentProviderService extends 
AbstractProviderService implements
 
   @Override
   public void initializeApplicationConfiguration(
-      AggregateConf instanceDefinition, SliderFileSystem fileSystem,
-      String roleGroup)
+      AggregateConf instanceDefinition, SliderFileSystem fileSystem)
       throws IOException, SliderException {
-    buildMetainfo(instanceDefinition, fileSystem, roleGroup);
+    buildMetainfo(instanceDefinition, fileSystem);
   }
 
   @Override
@@ -391,9 +345,9 @@ public class AgentProviderService extends 
AbstractProviderService implements
     String roleName = providerRole.name;
     String roleGroup = providerRole.group;
     String appDef = SliderUtils.getApplicationDefinitionPath(instanceDefinition
-        .getAppConfOperations(), roleGroup);
+        .getAppConfOperations());
 
-    initializeApplicationConfiguration(instanceDefinition, fileSystem, 
roleGroup);
+    initializeApplicationConfiguration(instanceDefinition, fileSystem);
 
     log.info("Build launch context for Agent");
     log.debug(instanceDefinition.toString());
@@ -610,7 +564,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
     // initialize the component instance state
     getComponentStatuses().put(label,
                                new ComponentInstanceState(
-                                   roleGroup,
+                                   roleName,
                                    container.getId(),
                                    
getClusterInfoPropertyValue(OptionKeys.APPLICATION_NAME),
                                    pkgStatuses));
@@ -786,12 +740,11 @@ public class AgentProviderService extends 
AbstractProviderService implements
                                                   .extractRole(container));
       if (role != null) {
         String roleName = role.name;
-        String roleGroup = role.group;
-        String label = getContainerLabel(container, roleName, roleGroup);
+        String label = getContainerLabel(container, roleName, role.group);
         log.info("Rebuilding in-memory: container {} in role {} in cluster {}",
                  container.getId(), roleName, applicationId);
         getComponentStatuses().put(label,
-            new ComponentInstanceState(roleGroup, container.getId(),
+            new ComponentInstanceState(roleName, container.getId(),
                                        applicationId));
       } else {
         log.warn("Role not found for container {} in cluster {}",
@@ -912,7 +865,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
 
     StateAccessForProviders accessor = getAmState();
     CommandScript cmdScript = getScriptPathForMasterPackage(roleGroup);
-    List<ComponentCommand> commands = 
getApplicationComponent(roleGroup).getCommands();
+    List<ComponentCommand> commands = 
getMetaInfo().getApplicationComponent(roleGroup).getCommands();
 
     if (!isDockerContainer(roleGroup) && !isYarnDockerContainer(roleGroup)
         && (cmdScript == null || cmdScript.getScript() == null)
@@ -1190,7 +1143,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
   }
 
   private boolean isDockerContainer(String roleGroup) {
-    String type = getApplicationComponent(roleGroup).getType();
+    String type = getMetaInfo().getApplicationComponent(roleGroup).getType();
     if (SliderUtils.isSet(type)) {
       return type.toLowerCase().equals(SliderUtils.DOCKER) || 
type.toLowerCase().equals(SliderUtils.DOCKER_YARN);
     }
@@ -1198,7 +1151,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
   }
 
   private boolean isYarnDockerContainer(String roleGroup) {
-    String type = getApplicationComponent(roleGroup).getType();
+    String type = getMetaInfo().getApplicationComponent(roleGroup).getType();
     if (SliderUtils.isSet(type)) {
       return type.toLowerCase().equals(SliderUtils.DOCKER_YARN);
     }
@@ -1392,12 +1345,8 @@ public class AgentProviderService extends 
AbstractProviderService implements
   }
 
   @VisibleForTesting
-  protected Metainfo getMetaInfo(String roleGroup) {
-    MetainfoHolder mh = this.metaInfoMap.get(getMetainfoMapKey(roleGroup));
-    if (mh == null) {
-      return null;
-    }
-    return mh.metaInfo;
+  protected Metainfo getMetaInfo() {
+    return this.metaInfo;
   }
 
   @VisibleForTesting
@@ -1467,8 +1416,8 @@ public class AgentProviderService extends 
AbstractProviderService implements
     return defaultConfigMap;
   }
 
-  protected Map<String, DefaultConfig> getDefaultConfigs(String roleGroup) {
-    return metaInfoMap.get(getMetainfoMapKey(roleGroup)).defaultConfigs;
+  protected Map<String, DefaultConfig> getDefaultConfigs() {
+    return defaultConfigs;
   }
 
   private int getHeartbeatMonitorInterval() {
@@ -1634,9 +1583,9 @@ public class AgentProviderService extends 
AbstractProviderService implements
         log.info("Status report: {}", status.toString());
 
         if (status.getConfigs() != null) {
-          Application application = 
getMetaInfo(componentGroup).getApplication();
+          Application application = getMetaInfo().getApplication();
 
-          if (canAnyMasterPublishConfig(componentGroup) == false || 
canPublishConfig(componentGroup)) {
+          if (canAnyMasterPublishConfig() == false || 
canPublishConfig(componentGroup)) {
             // If no Master can explicitly publish then publish if its a master
             // Otherwise, wait till the master that can publish is ready
 
@@ -1778,7 +1727,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
     String hostNamePattern = "${THIS_HOST}";
     Map<String, String> toPublish = new HashMap<String, String>();
 
-    Application application = getMetaInfo(componentGroup).getApplication();
+    Application application = getMetaInfo().getApplication();
     for (Component component : application.getComponents()) {
       if (component.getName().equals(componentGroup)) {
         if (component.getComponentExports().size() > 0) {
@@ -1829,8 +1778,8 @@ public class AgentProviderService extends 
AbstractProviderService implements
     String portVarFormat = "${site.%s}";
     String hostNamePattern = "${" + compGroup + "_HOST}";
 
-    List<ExportGroup> appExportGroups = 
getMetaInfo(compGroup).getApplication().getExportGroups();
-    Component component = getApplicationComponent(compGroup);
+    List<ExportGroup> appExportGroups = 
getMetaInfo().getApplication().getExportGroups();
+    Component component = getMetaInfo().getApplicationComponent(compGroup);
     if (component != null && SliderUtils.isSet(component.getCompExports())
         && SliderUtils.isNotEmpty(appExportGroups)) {
 
@@ -1932,11 +1881,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
    * @return the component entry or null for no match
    */
   protected Component getApplicationComponent(String roleGroup) {
-    Metainfo metainfo = getMetaInfo(roleGroup);
-    if (metainfo == null) {
-      return null;
-    }
-    return metainfo.getApplicationComponent(roleGroup);
+    return getMetaInfo().getApplicationComponent(roleGroup);
   }
 
   /**
@@ -2005,9 +1950,9 @@ public class AgentProviderService extends 
AbstractProviderService implements
    *
    * @return true if the condition holds
    */
-  protected boolean canAnyMasterPublishConfig(String roleGroup) {
+  protected boolean canAnyMasterPublishConfig() {
     if (canAnyMasterPublish == null) {
-      Application application = getMetaInfo(roleGroup).getApplication();
+      Application application = getMetaInfo().getApplication();
       if (application == null) {
         log.error("Malformed app definition: Expect application as root 
element in the metainfo.xml");
       } else {
@@ -2082,7 +2027,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
     cmd.setPkg(pkg);
     Map<String, String> hostLevelParams = new TreeMap<String, String>();
     hostLevelParams.put(JAVA_HOME, 
appConf.getGlobalOptions().getOption(JAVA_HOME, getJDKDir()));
-    hostLevelParams.put(PACKAGE_LIST, getPackageList(roleGroup));
+    hostLevelParams.put(PACKAGE_LIST, getPackageList());
     hostLevelParams.put(CONTAINER_ID, containerId);
     cmd.setHostLevelParams(hostLevelParams);
 
@@ -2131,7 +2076,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
     cmd.setComponentName(roleName);
     cmd.setRole(roleName);
     Map<String, String> hostLevelParams = new TreeMap<String, String>();
-    hostLevelParams.put(PACKAGE_LIST, getPackageList(roleGroup));
+    hostLevelParams.put(PACKAGE_LIST, getPackageList());
     hostLevelParams.put(CONTAINER_ID, containerId);
     cmd.setHostLevelParams(hostLevelParams);
 
@@ -2151,7 +2096,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
     configurations.get("global").put("exec_cmd", effectiveCommand.getExec());
 
     cmd.setHostname(getClusterInfoPropertyValue(StatusKeys.INFO_AM_HOSTNAME));
-    cmd.addContainerDetails(roleGroup, getMetaInfo(roleGroup));
+    cmd.addContainerDetails(roleGroup, getMetaInfo());
 
     Map<String, String> dockerConfig = new HashMap<String, String>();
     if(isYarnDockerContainer(roleGroup)){
@@ -2234,8 +2179,8 @@ public class AgentProviderService extends 
AbstractProviderService implements
     }
   }
 
-  private String getPackageList(String roleGroup) {
-    return 
getPackageListFromApplication(getMetaInfo(roleGroup).getApplication());
+  private String getPackageList() {
+    return getPackageListFromApplication(getMetaInfo().getApplication());
   }
 
   private void prepareExecutionCommand(ExecutionCommand cmd) {
@@ -2400,7 +2345,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
   private String getConfigFromMetaInfoWithAppConfigOverriding(String roleGroup,
       String configName){
     ConfTreeOperations appConf = getAmState().getAppConfSnapshot();
-    String containerName = getApplicationComponent(roleGroup)
+    String containerName = getMetaInfo().getApplicationComponent(roleGroup)
         .getDockerContainers().get(0).getName();
     String composedConfigName = null;
     String appConfigValue = null;
@@ -2541,7 +2486,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
     
     cmd.setConfigurations(configurations);
    // configurations.get("global").put("exec_cmd", startCommand.getExec());
-    cmd.addContainerDetails(roleGroup, getMetaInfo(roleGroup));
+    cmd.addContainerDetails(roleGroup, getMetaInfo());
 
     log.info("Docker- command: {}", cmd.toString());
 
@@ -2551,7 +2496,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
   private String getConfigFromMetaInfo(String roleGroup, String configName) {
     String result = null;
 
-    List<DockerContainer> containers = getApplicationComponent(
+    List<DockerContainer> containers = getMetaInfo().getApplicationComponent(
         roleGroup).getDockerContainers();// to support multi container per
                                              // component later
     log.debug("Docker- containers metainfo: {}", containers.toString());
@@ -2853,11 +2798,10 @@ public class AgentProviderService extends 
AbstractProviderService implements
 
     for (String configType : configs) {
       addNamedConfiguration(configType, appConf.getGlobalOptions().options,
-                            configurations, tokens, containerId, roleName,
-                            roleGroup);
+                            configurations, tokens, containerId, roleName);
       if (appConf.getComponent(roleGroup) != null) {
         addNamedConfiguration(configType, 
appConf.getComponent(roleGroup).options,
-            configurations, tokens, containerId, roleName, roleGroup);
+            configurations, tokens, containerId, roleName);
       }
     }
 
@@ -2900,32 +2844,15 @@ public class AgentProviderService extends 
AbstractProviderService implements
     tokens.put("${NN_HOST}", URI.create(nnuri).getHost());
     tokens.put("${ZK_HOST}", appConf.get(OptionKeys.ZOOKEEPER_HOSTS));
     tokens.put("${DEFAULT_ZK_PATH}", appConf.get(OptionKeys.ZOOKEEPER_PATH));
-    String mapKey = getMetainfoMapKey(componentGroup);
-    String dataDirSuffix = "";
-    if (!DEFAULT_METAINFO_MAP_KEY.equals(mapKey)) {
-      dataDirSuffix = "_" + mapKey.substring(0, mapKey.length()-1);
-    } else {
-      mapKey = "";
-    }
-    mapKey = mapKey.toLowerCase();
     tokens.put("${DEFAULT_DATA_DIR}", getAmState()
         .getInternalsSnapshot()
         .getGlobalOptions()
-        .getMandatoryOption(InternalKeys.INTERNAL_DATA_DIR_PATH) + 
dataDirSuffix);
+        .getMandatoryOption(InternalKeys.INTERNAL_DATA_DIR_PATH));
     tokens.put("${JAVA_HOME}", appConf.get(AgentKeys.JAVA_HOME));
     tokens.put("${COMPONENT_NAME}", componentName);
-    tokens.put("${COMPONENT_NAME.lc}", componentName.toLowerCase());
-    tokens.put("${COMPONENT_PREFIX}", mapKey);
-    tokens.put("${COMPONENT_PREFIX.lc}", mapKey.toLowerCase());
     if (!componentName.equals(componentGroup) && 
componentName.startsWith(componentGroup)) {
       tokens.put("${COMPONENT_ID}", 
componentName.substring(componentGroup.length()));
     }
-    tokens.put("${CLUSTER_NAME}", getClusterName());
-    tokens.put("${CLUSTER_NAME.lc}", getClusterName().toLowerCase());
-    tokens.put("${APP_NAME}", getClusterName());
-    tokens.put("${APP_NAME.lc}", getClusterName().toLowerCase());
-    tokens.put("${APP_COMPONENT_NAME}", componentName);
-    tokens.put("${APP_COMPONENT_NAME.lc}", componentName.toLowerCase());
     return tokens;
   }
 
@@ -2950,12 +2877,12 @@ public class AgentProviderService extends 
AbstractProviderService implements
     List<String> configList = new ArrayList<String>();
     configList.add(GLOBAL_CONFIG_TAG);
 
-    List<ConfigFile> configFiles = 
getMetaInfo(roleGroup).getApplication().getConfigFiles();
+    List<ConfigFile> configFiles = 
getMetaInfo().getApplication().getConfigFiles();
     for (ConfigFile configFile : configFiles) {
       log.info("Expecting config type {}.", configFile.getDictionaryName());
       configList.add(configFile.getDictionaryName());
     }
-    for (Component component : 
getMetaInfo(roleGroup).getApplication().getComponents()) {
+    for (Component component : getMetaInfo().getApplication().getComponents()) 
{
       if (!component.getName().equals(roleGroup)) {
         continue;
       }
@@ -2980,7 +2907,7 @@ public class AgentProviderService extends 
AbstractProviderService implements
   private void addNamedConfiguration(String configName, Map<String, String> 
sourceConfig,
                                      Map<String, Map<String, String>> 
configurations,
                                      Map<String, String> tokens, String 
containerId,
-                                     String roleName, String roleGroup) {
+                                     String roleName) {
     Map<String, String> config = new HashMap<String, String>();
     if (configName.equals(GLOBAL_CONFIG_TAG)) {
       addDefaultGlobalConfig(config, containerId, roleName);
@@ -3009,9 +2936,9 @@ public class AgentProviderService extends 
AbstractProviderService implements
     }
 
     //apply defaults only if the key is not present and value is not empty
-    if (getDefaultConfigs(roleGroup).containsKey(configName)) {
+    if (getDefaultConfigs().containsKey(configName)) {
       log.info("Adding default configs for type {}.", configName);
-      for (PropertyInfo defaultConfigProp : 
getDefaultConfigs(roleGroup).get(configName).getPropertyInfos()) {
+      for (PropertyInfo defaultConfigProp : 
getDefaultConfigs().get(configName).getPropertyInfos()) {
         if (!config.containsKey(defaultConfigProp.getName())) {
           if (!defaultConfigProp.getName().isEmpty() &&
               defaultConfigProp.getValue() != null &&

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/providers/agent/AgentUtils.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentUtils.java 
b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentUtils.java
index ed5108c..cfcfc5d 100644
--- 
a/slider-core/src/main/java/org/apache/slider/providers/agent/AgentUtils.java
+++ 
b/slider-core/src/main/java/org/apache/slider/providers/agent/AgentUtils.java
@@ -35,9 +35,6 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 
-import static org.apache.slider.common.SliderKeys.COMPONENT_SEPARATOR;
-import static 
org.apache.slider.providers.agent.AgentKeys.DEFAULT_METAINFO_MAP_KEY;
-
 /**
  *
  */
@@ -134,25 +131,4 @@ public class AgentUtils {
 
     return new DefaultConfigParser().parse(configStream);
   }
-
-  static String getMetainfoMapKey(String roleGroup) {
-    if (roleGroup == null) {
-      return DEFAULT_METAINFO_MAP_KEY;
-    }
-    int lastIndex = roleGroup.lastIndexOf(COMPONENT_SEPARATOR);
-    if (lastIndex == -1) {
-      return DEFAULT_METAINFO_MAP_KEY;
-    } else {
-      return roleGroup.substring(0, lastIndex+1);
-    }
-  }
-
-  static String getMetainfoComponentName(String roleGroup) {
-    int lastIndex = roleGroup.lastIndexOf(COMPONENT_SEPARATOR);
-    if (lastIndex == -1) {
-      return roleGroup;
-    } else {
-      return roleGroup.substring(lastIndex+1);
-    }
-  }
 }

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/providers/agent/ComponentCommandOrder.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/providers/agent/ComponentCommandOrder.java
 
b/slider-core/src/main/java/org/apache/slider/providers/agent/ComponentCommandOrder.java
index e2c879e..91f1259 100644
--- 
a/slider-core/src/main/java/org/apache/slider/providers/agent/ComponentCommandOrder.java
+++ 
b/slider-core/src/main/java/org/apache/slider/providers/agent/ComponentCommandOrder.java
@@ -40,13 +40,7 @@ public class ComponentCommandOrder {
   Map<Command, Map<String, List<ComponentState>>> dependencies =
       new HashMap<Command, Map<String, List<ComponentState>>>();
 
-  public ComponentCommandOrder() {}
-
   public ComponentCommandOrder(List<CommandOrder> commandOrders) {
-    mergeCommandOrders(commandOrders);
-  }
-
-  void mergeCommandOrders(List<CommandOrder> commandOrders) {
     if (commandOrders != null && commandOrders.size() > 0) {
       for (CommandOrder commandOrder : commandOrders) {
         ComponentCommand componentCmd = 
getComponentCommand(commandOrder.getCommand());

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/server/appmaster/SliderAppMaster.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/server/appmaster/SliderAppMaster.java
 
b/slider-core/src/main/java/org/apache/slider/server/appmaster/SliderAppMaster.java
index 040f12b..b767059 100644
--- 
a/slider-core/src/main/java/org/apache/slider/server/appmaster/SliderAppMaster.java
+++ 
b/slider-core/src/main/java/org/apache/slider/server/appmaster/SliderAppMaster.java
@@ -882,8 +882,7 @@ public class SliderAppMaster extends 
AbstractSliderLaunchedService
       Configuration providerConf =
         providerService.loadProviderConfigurationInformation(confDir);
 
-      providerService.initializeApplicationConfiguration(instanceDefinition,
-          fs, null);
+      providerService.initializeApplicationConfiguration(instanceDefinition, 
fs);
 
       providerService.validateApplicationConfiguration(instanceDefinition,
           confDir,

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/main/java/org/apache/slider/server/appmaster/web/rest/agent/AgentResource.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/main/java/org/apache/slider/server/appmaster/web/rest/agent/AgentResource.java
 
b/slider-core/src/main/java/org/apache/slider/server/appmaster/web/rest/agent/AgentResource.java
index 20ef068..f1e105a 100644
--- 
a/slider-core/src/main/java/org/apache/slider/server/appmaster/web/rest/agent/AgentResource.java
+++ 
b/slider-core/src/main/java/org/apache/slider/server/appmaster/web/rest/agent/AgentResource.java
@@ -73,7 +73,7 @@ public class AgentResource extends AbstractSliderResource {
   }
 
   @POST
-  @Path("/{agent_name: [a-zA-Z][a-zA-Z0-9_-]*}/register")
+  @Path("/{agent_name: [a-zA-Z][a-zA-Z_0-9]*}/register")
   @Consumes({MediaType.APPLICATION_JSON})
   @Produces({MediaType.APPLICATION_JSON})
   public RegistrationResponse register(Register registration,
@@ -87,7 +87,7 @@ public class AgentResource extends AbstractSliderResource {
   }
 
   @POST
-  @Path("/{agent_name: [a-zA-Z][a-zA-Z0-9_-]*}/heartbeat")
+  @Path("/{agent_name: [a-zA-Z][a-zA-Z_0-9]*}/heartbeat")
   @Consumes(MediaType.APPLICATION_JSON)
   @Produces({MediaType.APPLICATION_JSON})
   public HeartBeatResponse heartbeat(HeartBeat message,

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/appConfig_external_component.json
----------------------------------------------------------------------
diff --git 
a/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/appConfig_external_component.json
 
b/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/appConfig_external_component.json
deleted file mode 100644
index 853310d..0000000
--- 
a/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/appConfig_external_component.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "schema": "http://example.org/specification/v2.0.0";,
-  "metadata": {
-  },
-  "global": {
-  },
-  "components": {
-    "test_sleep": {
-      "site.global.component_type": "external"
-    }
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/resources_external_component.json
----------------------------------------------------------------------
diff --git 
a/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/resources_external_component.json
 
b/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/resources_external_component.json
deleted file mode 100644
index bccea68..0000000
--- 
a/slider-core/src/test/app_packages/test_min_pkg/sleep_cmd/resources_external_component.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-  "schema" : "http://example.org/specification/v2.0.0";,
-  "metadata" : {
-  },
-  "global" : {
-  },
-  "components": {
-    "slider-appmaster": {
-      "yarn.memory": "384"
-    },
-    "SLEEP_100": {
-      "yarn.role.priority": "1",
-      "yarn.component.instances": "0",
-      "yarn.memory": "128"
-    },
-    "SLEEP_LONG": {
-      "yarn.role.priority": "2",
-      "yarn.component.instances": "1",
-      "yarn.memory": "128"
-    }
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/test/groovy/org/apache/slider/client/TestReplaceTokens.groovy
----------------------------------------------------------------------
diff --git 
a/slider-core/src/test/groovy/org/apache/slider/client/TestReplaceTokens.groovy 
b/slider-core/src/test/groovy/org/apache/slider/client/TestReplaceTokens.groovy
index a35bcc0..c4c755d 100644
--- 
a/slider-core/src/test/groovy/org/apache/slider/client/TestReplaceTokens.groovy
+++ 
b/slider-core/src/test/groovy/org/apache/slider/client/TestReplaceTokens.groovy
@@ -51,9 +51,8 @@ class TestReplaceTokens extends Assert {
       new JsonSerDeser<ConfTree>(ConfTree)
     def confTree = confTreeJsonSerDeser.fromResource(PACKAGE + 
app_configuration)
     SliderClient.replaceTokens(confTree, "testUser", "testCluster")
-    // cluster name is resolved later now
-    assert confTree.global.get("site.fs.defaultFS") == 
"hdfs://\${CLUSTER_NAME}:8020"
-    assert confTree.global.get("site.fs.default.name") == 
"hdfs://\${CLUSTER_NAME}:8020"
+    assert confTree.global.get("site.fs.defaultFS") == 
"hdfs://testCluster:8020"
+    assert confTree.global.get("site.fs.default.name") == 
"hdfs://testCluster:8020"
     assert confTree.global.get("site.hbase.user_name") == "testUser"
     assert confTree.global.get("site.hbase.another.user") == "testUser"
 

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockProviderService.groovy
----------------------------------------------------------------------
diff --git 
a/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockProviderService.groovy
 
b/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockProviderService.groovy
index 1ea2277..659af0e 100644
--- 
a/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockProviderService.groovy
+++ 
b/slider-core/src/test/groovy/org/apache/slider/server/appmaster/model/mock/MockProviderService.groovy
@@ -175,8 +175,7 @@ class MockProviderService implements ProviderService {
 
   @Override
   void initializeApplicationConfiguration(AggregateConf instanceDefinition,
-      SliderFileSystem fileSystem, String roleGroup)
-    throws IOException, SliderException {
+      SliderFileSystem fileSystem) throws IOException, SliderException {
   }
 
   @Override

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-core/src/test/java/org/apache/slider/providers/agent/TestAgentProviderService.java
----------------------------------------------------------------------
diff --git 
a/slider-core/src/test/java/org/apache/slider/providers/agent/TestAgentProviderService.java
 
b/slider-core/src/test/java/org/apache/slider/providers/agent/TestAgentProviderService.java
index 07d21d7..9fbb3d0 100644
--- 
a/slider-core/src/test/java/org/apache/slider/providers/agent/TestAgentProviderService.java
+++ 
b/slider-core/src/test/java/org/apache/slider/providers/agent/TestAgentProviderService.java
@@ -471,7 +471,7 @@ public class TestAgentProviderService {
     metainfo.setApplication(application);
     doReturn(metainfo).when(mockAps).getApplicationMetainfo(
         any(SliderFileSystem.class), anyString());
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
 
 
 
@@ -664,7 +664,7 @@ public class TestAgentProviderService {
     hbaseMaster.setName("HBASE_MASTER");
     application.addComponent(hbaseMaster);
     metainfo.setApplication(application);
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
     doReturn(metainfo).when(mockAps).getApplicationMetainfo(
         any(SliderFileSystem.class), anyString(), anyBoolean());
 
@@ -679,7 +679,7 @@ public class TestAgentProviderService {
     reg.setActualState(State.STARTED);
 
     mockAps.initializeApplicationConfiguration(instanceDefinition,
-        null, null);
+        null);
 
     RegistrationResponse resp = mockAps.handleRegistration(reg);
     Assert.assertEquals(0, resp.getResponseId());
@@ -735,7 +735,7 @@ public class TestAgentProviderService {
     metainfo.setApplication(application);
     doReturn(metainfo).when(mockAps).getApplicationMetainfo(
         any(SliderFileSystem.class), anyString(), anyBoolean());
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
     doNothing().when(mockAps).addRoleRelatedTokens(anyMap());
 
     Register reg = new Register();
@@ -748,7 +748,7 @@ public class TestAgentProviderService {
     // Simulating agent in INSTALLED state
     reg.setActualState(State.INSTALLED);
 
-    mockAps.initializeApplicationConfiguration(instanceDefinition, null, 
"HBASE_MASTER");
+    mockAps.initializeApplicationConfiguration(instanceDefinition, null);
 
     RegistrationResponse resp = mockAps.handleRegistration(reg);
     Assert.assertEquals(0, resp.getResponseId());
@@ -853,7 +853,7 @@ public class TestAgentProviderService {
     AgentProviderService aps = createAgentProviderService(new Configuration());
     AgentProviderService mockAps = Mockito.spy(aps);
     doNothing().when(mockAps).publishApplicationInstanceData(anyString(), 
anyString(), anyCollection());
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
 
     Map<String, String> ports = new HashMap<String, String>();
     ports.put("global.listen_port", "10010");
@@ -892,7 +892,7 @@ public class TestAgentProviderService {
     AgentProviderService aps = createAgentProviderService(new Configuration());
     AgentProviderService mockAps = Mockito.spy(aps);
     doNothing().when(mockAps).publishApplicationInstanceData(anyString(), 
anyString(), anyCollection());
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
     StateAccessForProviders access = 
createNiceMock(StateAccessForProviders.class);
     doReturn(access).when(mockAps).getAmState();
     PublishedExportsSet pubExpSet = new PublishedExportsSet();
@@ -1005,7 +1005,7 @@ public class TestAgentProviderService {
         new MockContainerId(1), "cid");
     AgentProviderService mockAps = Mockito.spy(aps);
     doNothing().when(mockAps).publishApplicationInstanceData(anyString(), 
anyString(), anyCollection());
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
     doReturn(roleClusterNodeMap).when(mockAps).getRoleClusterNodeMapping();
     StateAccessForProviders access = 
createNiceMock(StateAccessForProviders.class);
     doReturn(access).when(mockAps).getAmState();
@@ -1149,7 +1149,7 @@ public class TestAgentProviderService {
 
     AgentProviderService aps = createAgentProviderService(new Configuration());
     AgentProviderService mockAps = Mockito.spy(aps);
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
     CommandScript script = 
mockAps.getScriptPathForMasterPackage("HBASE_MASTER");
     Assert.assertEquals(script.getScript(), "scripts/hbase_master.py");
 
@@ -1178,24 +1178,22 @@ public class TestAgentProviderService {
 
     AgentProviderService aps1 = createAgentProviderService(new 
Configuration());
     AgentProviderService mockAps = Mockito.spy(aps1);
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
 
     AgentProviderService mockAps2 = Mockito.spy(aps1);
-    doReturn(metainfo2).when(mockAps2).getMetaInfo(anyString());
+    doReturn(metainfo2).when(mockAps2).getMetaInfo();
 
     Assert.assertTrue(mockAps.isMaster(role_hm));
     Assert.assertFalse(mockAps.isMaster(role_hrs));
     Assert.assertTrue(mockAps.canPublishConfig(role_hm));
     Assert.assertFalse(mockAps.canPublishConfig(role_hrs));
-    Assert.assertTrue(mockAps.canAnyMasterPublishConfig(role_hm));
-    Assert.assertTrue(mockAps.canAnyMasterPublishConfig(role_hrs));
+    Assert.assertTrue(mockAps.canAnyMasterPublishConfig());
 
     Assert.assertTrue(mockAps2.isMaster(role_hm));
     Assert.assertFalse(mockAps2.isMaster(role_hrs));
     Assert.assertTrue(mockAps2.canPublishConfig(role_hm));
     Assert.assertFalse(mockAps2.canPublishConfig(role_hrs));
-    Assert.assertTrue(mockAps2.canAnyMasterPublishConfig(role_hm));
-    Assert.assertTrue(mockAps2.canAnyMasterPublishConfig(role_hrs));
+    Assert.assertTrue(mockAps2.canAnyMasterPublishConfig());
   }
 
   @Test
@@ -1630,8 +1628,8 @@ public class TestAgentProviderService {
     expect(access.isApplicationLive()).andReturn(true).anyTimes();
 
     doReturn("HOST1").when(mockAps).getClusterInfoPropertyValue(anyString());
-    doReturn(metainfo).when(mockAps).getMetaInfo(anyString());
-    doReturn(new HashMap<String, 
DefaultConfig>()).when(mockAps).getDefaultConfigs(anyString());
+    doReturn(metainfo).when(mockAps).getMetaInfo();
+    doReturn(new HashMap<String, 
DefaultConfig>()).when(mockAps).getDefaultConfigs();
 
     Map<String, Map<String, ClusterNode>> roleClusterNodeMap = new 
HashMap<String, Map<String, ClusterNode>>();
     Map<String, ClusterNode> container = new HashMap<String, ClusterNode>();
@@ -1697,7 +1695,7 @@ public class TestAgentProviderService {
     expect(access.isApplicationLive()).andReturn(true).anyTimes();
 
     doReturn("HOST1").when(mockAps).getClusterInfoPropertyValue(anyString());
-    doReturn(defaultConfigMap).when(mockAps).getDefaultConfigs(anyString());
+    doReturn(defaultConfigMap).when(mockAps).getDefaultConfigs();
     List<String> configurations = new ArrayList<String>();
     configurations.add("hbase-site");
     configurations.add("global");
@@ -1785,7 +1783,7 @@ public class TestAgentProviderService {
     expect(access.isApplicationLive()).andReturn(true).anyTimes();
 
     doReturn("HOST1").when(mockAps).getClusterInfoPropertyValue(anyString());
-    doReturn(defaultConfigMap).when(mockAps).getDefaultConfigs(anyString());
+    doReturn(defaultConfigMap).when(mockAps).getDefaultConfigs();
     List<String> configurations = new ArrayList<String>();
     configurations.add("hbase-site");
     configurations.add("global");

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-funtest/src/test/groovy/org/apache/slider/funtest/ResourcePaths.groovy
----------------------------------------------------------------------
diff --git 
a/slider-funtest/src/test/groovy/org/apache/slider/funtest/ResourcePaths.groovy 
b/slider-funtest/src/test/groovy/org/apache/slider/funtest/ResourcePaths.groovy
index 1cb6f0f..5de2b8e 100644
--- 
a/slider-funtest/src/test/groovy/org/apache/slider/funtest/ResourcePaths.groovy
+++ 
b/slider-funtest/src/test/groovy/org/apache/slider/funtest/ResourcePaths.groovy
@@ -38,6 +38,4 @@ interface ResourcePaths {
   String SLEEP_META = 
"$SLIDER_CORE_APP_PACKAGES/test_min_pkg/sleep_cmd/metainfo.json"
   String SLEEP_APPCONFIG = 
"$SLIDER_CORE_APP_PACKAGES/test_min_pkg/sleep_cmd/appConfig.json"
 
-  String EXTERNAL_RESOURCES = 
"$SLIDER_CORE_APP_PACKAGES/test_min_pkg/sleep_cmd/resources_external_component.json"
-  String EXTERNAL_APPCONFIG = 
"$SLIDER_CORE_APP_PACKAGES/test_min_pkg/sleep_cmd/appConfig_external_component.json"
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-slider/blob/c0f4e922/slider-funtest/src/test/groovy/org/apache/slider/funtest/misc/ExternalComponentIT.groovy
----------------------------------------------------------------------
diff --git 
a/slider-funtest/src/test/groovy/org/apache/slider/funtest/misc/ExternalComponentIT.groovy
 
b/slider-funtest/src/test/groovy/org/apache/slider/funtest/misc/ExternalComponentIT.groovy
deleted file mode 100644
index b5e0270..0000000
--- 
a/slider-funtest/src/test/groovy/org/apache/slider/funtest/misc/ExternalComponentIT.groovy
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * 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.slider.funtest.lifecycle
-
-import groovy.transform.CompileStatic
-import groovy.util.logging.Slf4j
-import org.apache.slider.api.ClusterDescription
-import org.apache.slider.api.ResourceKeys
-import org.apache.slider.common.SliderExitCodes
-import org.apache.slider.common.SliderKeys
-import org.apache.slider.common.params.Arguments
-import org.apache.slider.common.params.SliderActions
-import org.apache.slider.funtest.ResourcePaths
-import org.apache.slider.funtest.framework.AgentCommandTestBase
-import org.apache.slider.funtest.framework.FuntestProperties
-import org.junit.After
-import org.junit.Before
-import org.junit.Test
-
-@CompileStatic
-@Slf4j
-public class ExternalComponentIT extends AgentCommandTestBase
-  implements FuntestProperties, Arguments, SliderExitCodes, SliderActions {
-
-  static String NAME = "test-external-component"
-  static String EXT_NAME = "test_sleep"
-
-  static String BUILD_APPCONFIG = ResourcePaths.SLEEP_APPCONFIG
-  static String BUILD_RESOURCES = ResourcePaths.EXTERNAL_RESOURCES
-  static String BUILD_METAINFO = ResourcePaths.SLEEP_META
-  static String TEST_APPCONFIG = ResourcePaths.EXTERNAL_APPCONFIG
-  static String TEST_RESOURCES = ResourcePaths.EXTERNAL_RESOURCES
-  static String TEST_METAINFO = ResourcePaths.SLEEP_META
-  public static final String SLEEP_100 = "SLEEP_100"
-  public static final String SLEEP_LONG = "SLEEP_LONG"
-  public static final String EXT_SLEEP_100 = EXT_NAME +
-    SliderKeys.COMPONENT_SEPARATOR + SLEEP_100
-  public static final String EXT_SLEEP_LONG = EXT_NAME +
-    SliderKeys.COMPONENT_SEPARATOR + SLEEP_LONG
-
-  @Before
-  public void prepareCluster() {
-    setupCluster(NAME)
-    setupCluster(EXT_NAME)
-  }
-
-  @After
-  public void destroyCluster() {
-    cleanup(NAME)
-    cleanup(EXT_NAME)
-  }
-
-  @Test
-  public void testExternalComponent() throws Throwable {
-    assumeAgentTestsEnabled()
-    describe NAME
-
-    slider(0, [ACTION_BUILD, EXT_NAME, ARG_METAINFO, BUILD_METAINFO,
-               ARG_TEMPLATE, BUILD_APPCONFIG, ARG_RESOURCES, BUILD_RESOURCES,
-               ARG_RES_COMP_OPT, SLEEP_100, ResourceKeys.COMPONENT_INSTANCES, 
"0",
-               ARG_RES_COMP_OPT, SLEEP_LONG, ResourceKeys.COMPONENT_INSTANCES, 
"1"
-    ])
-
-    slider(0, [ACTION_CREATE, NAME, ARG_METAINFO, TEST_METAINFO,
-               ARG_TEMPLATE, TEST_APPCONFIG, ARG_RESOURCES, TEST_RESOURCES])
-
-    ensureApplicationIsUp(NAME)
-    status(0, NAME)
-
-    ClusterDescription cd = execStatus(NAME)
-
-    assert 5 == cd.statistics.size()
-    assert cd.statistics.keySet().containsAll([SliderKeys.COMPONENT_AM,
-                                               SLEEP_100, SLEEP_LONG,
-                                               EXT_SLEEP_100, EXT_SLEEP_LONG])
-
-    expectLiveContainerCountReached(NAME, SLEEP_LONG, 1,
-      CONTAINER_LAUNCH_TIMEOUT)
-    expectLiveContainerCountReached(NAME, EXT_SLEEP_LONG, 1,
-      CONTAINER_LAUNCH_TIMEOUT)
-    expectLiveContainerCountReached(NAME, SLEEP_100, 0,
-      CONTAINER_LAUNCH_TIMEOUT)
-    expectLiveContainerCountReached(NAME, EXT_SLEEP_100, 0,
-      CONTAINER_LAUNCH_TIMEOUT)
-
-    cleanup(NAME)
-
-    // test overriding the number of instances of external components
-    describe NAME + "-2"
-
-    slider(0, [ACTION_CREATE, NAME, ARG_METAINFO, TEST_METAINFO,
-               ARG_TEMPLATE, TEST_APPCONFIG, ARG_RESOURCES, TEST_RESOURCES,
-               ARG_RES_COMP_OPT, SLEEP_LONG, ResourceKeys.COMPONENT_INSTANCES, 
"0",
-               ARG_RES_COMP_OPT, EXT_SLEEP_LONG, 
ResourceKeys.COMPONENT_INSTANCES, "2",
-    ])
-
-    ensureApplicationIsUp(NAME)
-    status(0, NAME)
-
-    cd = execStatus(NAME)
-
-    assert 5 == cd.statistics.size()
-    assert cd.statistics.keySet().containsAll([SliderKeys.COMPONENT_AM,
-                                               SLEEP_100, SLEEP_LONG,
-                                               EXT_SLEEP_100, EXT_SLEEP_LONG])
-
-    expectLiveContainerCountReached(NAME, SLEEP_LONG, 0,
-      CONTAINER_LAUNCH_TIMEOUT)
-    expectLiveContainerCountReached(NAME, EXT_SLEEP_LONG, 2,
-      CONTAINER_LAUNCH_TIMEOUT)
-    expectLiveContainerCountReached(NAME, SLEEP_100, 0,
-      CONTAINER_LAUNCH_TIMEOUT)
-    expectLiveContainerCountReached(NAME, EXT_SLEEP_100, 0,
-      CONTAINER_LAUNCH_TIMEOUT)
-
-  }
-}

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