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From jonathanhur...@apache.org
Subject [16/35] git commit: AMBARI-6061. OutOfMemoryError during host checks on 2k nodes cluster (dlysnichenko)
Date Wed, 27 Aug 2014 14:04:57 GMT
AMBARI-6061. OutOfMemoryError during host checks on 2k nodes cluster (dlysnichenko)


Project: http://git-wip-us.apache.org/repos/asf/ambari/repo
Commit: http://git-wip-us.apache.org/repos/asf/ambari/commit/9faeaf5a
Tree: http://git-wip-us.apache.org/repos/asf/ambari/tree/9faeaf5a
Diff: http://git-wip-us.apache.org/repos/asf/ambari/diff/9faeaf5a

Branch: refs/heads/branch-alerts-dev
Commit: 9faeaf5a525bfee0932c1a654b28651c0b1705dd
Parents: db83ea2
Author: Lisnichenko Dmitro <dlysnichenko@hortonworks.com>
Authored: Tue Aug 26 15:02:41 2014 +0300
Committer: Lisnichenko Dmitro <dlysnichenko@hortonworks.com>
Committed: Tue Aug 26 17:24:48 2014 +0300

----------------------------------------------------------------------
 .../server/actionmanager/ActionScheduler.java   |  33 +++++
 .../ambari/server/actionmanager/Stage.java      |  32 ++++-
 .../server/actionmanager/StageFactory.java      |   4 +-
 .../ambari/server/agent/ExecutionCommand.java   |   2 +-
 .../controller/AmbariActionExecutionHelper.java |   9 +-
 .../AmbariCustomCommandExecutionHelper.java     |  34 ++---
 .../AmbariManagementControllerImpl.java         | 128 ++++++++++---------
 .../ambari/server/orm/entities/StageEntity.java |  28 ++++
 .../ambari/server/stageplanner/RoleGraph.java   |   3 +-
 .../server/upgrade/UpgradeCatalog170.java       |   7 +-
 .../apache/ambari/server/utils/StageUtils.java  |  57 +++++----
 .../main/resources/Ambari-DDL-MySQL-CREATE.sql  |   2 +-
 .../main/resources/Ambari-DDL-Oracle-CREATE.sql |   2 +-
 .../resources/Ambari-DDL-Postgres-CREATE.sql    |   2 +-
 .../Ambari-DDL-Postgres-EMBEDDED-CREATE.sql     |   2 +-
 .../ExecutionCommandWrapperTest.java            |   2 +-
 .../actionmanager/TestActionDBAccessorImpl.java |  20 +--
 .../server/actionmanager/TestActionManager.java |  31 +++--
 .../actionmanager/TestActionScheduler.java      |  33 +++--
 .../ambari/server/actionmanager/TestStage.java  |   4 +-
 .../server/agent/TestHeartbeatHandler.java      |  15 ++-
 .../AmbariManagementControllerTest.java         |  84 ++++++++----
 .../server/stageplanner/TestStagePlanner.java   |   6 +-
 .../server/upgrade/UpgradeCatalog170Test.java   |  30 +++++
 .../ambari/server/utils/TestStageUtils.java     |  13 +-
 .../app/controllers/wizard/step3_controller.js  |   1 -
 26 files changed, 381 insertions(+), 203 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionScheduler.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionScheduler.java b/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionScheduler.java
index b9a67b7..0385686 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionScheduler.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionScheduler.java
@@ -121,6 +121,8 @@ class ActionScheduler implements Runnable {
   private boolean activeAwakeRequest = false;
   //Cache for clusterHostinfo, key - stageId-requestId
   private Cache<String, Map<String, Set<String>>> clusterHostInfoCache;
+  private Cache<String, Map<String, String>> commandParamsStageCache;
+  private Cache<String, Map<String, String>> hostParamsStageCache;
 
   public ActionScheduler(long sleepTimeMilliSec, long actionTimeoutMilliSec,
       ActionDBAccessor db, ActionQueue actionQueue, Clusters fsmObject,
@@ -138,6 +140,12 @@ class ActionScheduler implements Runnable {
     this.clusterHostInfoCache = CacheBuilder.newBuilder().
         expireAfterAccess(5, TimeUnit.MINUTES).
         build();
+    this.commandParamsStageCache = CacheBuilder.newBuilder().
+      expireAfterAccess(5, TimeUnit.MINUTES).
+      build();
+    this.hostParamsStageCache = CacheBuilder.newBuilder().
+      expireAfterAccess(5, TimeUnit.MINUTES).
+      build();
     this.configuration = configuration;
   }
 
@@ -748,6 +756,31 @@ class ActionScheduler implements Runnable {
     }
 
     cmd.setClusterHostInfo(clusterHostInfo);
+ 
+    //Try to get commandParams from cache and merge them with command-level parameters
+    Map<String, String> commandParams = commandParamsStageCache.getIfPresent(stagePk);
+
+    if (commandParams == null){
+      Type type = new TypeToken<Map<String, String>>() {}.getType();
+      commandParams = StageUtils.getGson().fromJson(s.getCommandParamsStage(), type);
+      commandParamsStageCache.put(stagePk, commandParams);
+    }
+    Map<String, String> commandParamsCmd = cmd.getCommandParams();
+    commandParamsCmd.putAll(commandParams);
+    cmd.setCommandParams(commandParamsCmd);
+
+
+    //Try to get hostParams from cache and merge them with command-level parameters
+    Map<String, String> hostParams = hostParamsStageCache.getIfPresent(stagePk);
+    if (hostParams == null) {
+      Type type = new TypeToken<Map<String, String>>() {}.getType();
+      hostParams = StageUtils.getGson().fromJson(s.getHostParamsStage(), type);
+      hostParamsStageCache.put(stagePk, hostParams);
+    }
+    Map<String, String> hostParamsCmd = cmd.getHostLevelParams();
+    hostParamsCmd.putAll(hostParams);
+    cmd.setHostLevelParams(hostParamsCmd);
+
 
     commandsToUpdate.add(cmd);
   }

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/Stage.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/Stage.java b/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/Stage.java
index c4bbb46..bbc5ac3 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/Stage.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/Stage.java
@@ -39,7 +39,6 @@ import org.apache.ambari.server.orm.entities.StageEntity;
 import org.apache.ambari.server.serveraction.ServerAction;
 import org.apache.ambari.server.state.Clusters;
 import org.apache.ambari.server.state.ServiceComponentHostEvent;
-import org.apache.ambari.server.state.fsm.event.Event;
 import org.apache.ambari.server.state.svccomphost.ServiceComponentHostUpgradeEvent;
 import org.apache.ambari.server.utils.StageUtils;
 import org.apache.commons.lang.StringUtils;
@@ -63,6 +62,8 @@ public class Stage {
   private final String logDir;
   private final String requestContext;
   private String clusterHostInfo;
+  private String commandParamsStage;
+  private String hostParamsStage;
 
   private int stageTimeout = -1;
 
@@ -83,7 +84,9 @@ public class Stage {
       @Assisted("clusterName") @Nullable String clusterName,
       @Assisted("clusterId") long clusterId,
       @Assisted("requestContext") @Nullable String requestContext,
-      @Assisted("clusterHostInfo") String clusterHostInfo) {
+      @Assisted("clusterHostInfo") String clusterHostInfo,
+      @Assisted("commandParamsStage") String commandParamsStage,
+      @Assisted("hostParamsStage") String hostParamsStage) {
     this.wrappersLoaded = true;
     this.requestId = requestId;
     this.logDir = logDir;
@@ -91,6 +94,8 @@ public class Stage {
     this.clusterId = clusterId;
     this.requestContext = requestContext == null ? "" : requestContext;
     this.clusterHostInfo = clusterHostInfo;
+    this.commandParamsStage = commandParamsStage;
+    this.hostParamsStage = hostParamsStage;
   }
 
   @AssistedInject
@@ -113,6 +118,8 @@ public class Stage {
     
     requestContext = stageEntity.getRequestContext();
     clusterHostInfo = stageEntity.getClusterHostInfo();
+    commandParamsStage = stageEntity.getCommandParamsStage();
+    hostParamsStage = stageEntity.getHostParamsStage();
 
 
     List<Long> taskIds = hostRoleCommandDAO.findTaskIdsByStage(requestId, stageId);
@@ -147,6 +154,8 @@ public class Stage {
     stageEntity.setHostRoleCommands(new ArrayList<HostRoleCommandEntity>());
     stageEntity.setRoleSuccessCriterias(new ArrayList<RoleSuccessCriteriaEntity>());
     stageEntity.setClusterHostInfo(clusterHostInfo);
+    stageEntity.setCommandParamsStage(commandParamsStage);
+    stageEntity.setHostParamsStage(hostParamsStage);
 
     for (Role role : successFactors.keySet()) {
       RoleSuccessCriteriaEntity roleSuccessCriteriaEntity = new RoleSuccessCriteriaEntity();
@@ -198,6 +207,23 @@ public class Stage {
   public void setClusterHostInfo(String clusterHostInfo) {
     this.clusterHostInfo = clusterHostInfo;
   }
+ 
+  public String getCommandParamsStage() {
+    return commandParamsStage;
+  }
+
+  public void setCommandParamsStage(String commandParamsStage) {
+    this.commandParamsStage = commandParamsStage;
+  }
+
+  public String getHostParamsStage() {
+    return hostParamsStage;
+  }
+
+  public void setHostParamsStage(String hostParamsStage) {
+    this.hostParamsStage = hostParamsStage;
+  }
+
 
   public synchronized void setStageId(long stageId) {
     if (this.stageId != -1) {
@@ -539,6 +565,8 @@ public class Stage {
     builder.append("logDir=" + logDir+"\n");
     builder.append("requestContext="+requestContext+"\n");
     builder.append("clusterHostInfo="+clusterHostInfo+"\n");
+    builder.append("commandParamsStage="+commandParamsStage+"\n");
+    builder.append("hostParamsStage="+hostParamsStage+"\n");
     builder.append("Success Factors:\n");
     for (Role r : successFactors.keySet()) {
       builder.append("  role: "+r+", factor: "+successFactors.get(r)+"\n");

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/StageFactory.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/StageFactory.java b/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/StageFactory.java
index fab2e96..a88558c 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/StageFactory.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/actionmanager/StageFactory.java
@@ -29,7 +29,9 @@ public interface StageFactory {
       @Assisted("clusterName") String clusterName,
       @Assisted("clusterId") long clusterId,
       @Assisted("requestContext") String requestContext,
-      @Assisted("clusterHostInfo") String clusterHostInfo);
+      @Assisted("clusterHostInfo") String clusterHostInfo,
+      @Assisted("commandParamsStage") String commandParamsStage,
+      @Assisted("hostParamsStage") String hostParamsStage);
 
   Stage createExisting(StageEntity stageEntity);
 }

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/agent/ExecutionCommand.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/agent/ExecutionCommand.java b/ambari-server/src/main/java/org/apache/ambari/server/agent/ExecutionCommand.java
index fdf96df..33c5af4 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/agent/ExecutionCommand.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/agent/ExecutionCommand.java
@@ -57,7 +57,7 @@ public class ExecutionCommand extends AgentCommand {
   private Map<String, Map<String, Map<String, String>>> configurationAttributes;
   private Map<String, Map<String, String>> configurationTags;
   private Set<String> forceRefreshConfigTags = new HashSet<String>();
-  private Map<String, String> commandParams;
+  private Map<String, String> commandParams = new HashMap<String, String>();
   private String serviceName;
   private String componentName;
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariActionExecutionHelper.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariActionExecutionHelper.java b/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariActionExecutionHelper.java
index 64f132e..efe85e0 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariActionExecutionHelper.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariActionExecutionHelper.java
@@ -20,7 +20,6 @@ package org.apache.ambari.server.controller;
 
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.COMMAND_TIMEOUT;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.COMPONENT_CATEGORY;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JDK_LOCATION;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT_TYPE;
 
@@ -206,12 +205,10 @@ public class AmbariActionExecutionHelper {
    * Add tasks to the stage based on the requested action execution
    * @param actionContext the context associated with the action
    * @param stage stage into which tasks must be inserted
-   * @param hostLevelParams host level params to send with the command
    * @throws AmbariException
    */
   public void addExecutionCommandsToStage(
-          final ActionExecutionContext actionContext,
-          Stage stage, Map<String, String> hostLevelParams)
+          final ActionExecutionContext actionContext, Stage stage)
       throws AmbariException {
 
     String actionName = actionContext.getActionName();
@@ -337,9 +334,8 @@ public class AmbariActionExecutionHelper {
         configTags = managementController.findConfigurationTagsWithOverrides(cluster, hostName);
       }
 
-      Map<String, String> commandParams = actionContext.getParameters();
+      Map<String, String> commandParams = new TreeMap<String, String>();
       commandParams.put(COMMAND_TIMEOUT, actionContext.getTimeout().toString());
-      commandParams.put(JDK_LOCATION, managementController.getJdkResourceUrl());
       commandParams.put(SCRIPT, actionName + ".py");
       commandParams.put(SCRIPT_TYPE, TYPE_PYTHON);
 
@@ -353,7 +349,6 @@ public class AmbariActionExecutionHelper {
       execCmd.setConfigurations(configurations);
       execCmd.setConfigurationAttributes(configurationAttributes);
       execCmd.setConfigurationTags(configTags);
-      execCmd.setHostLevelParams(hostLevelParams);
       execCmd.setCommandParams(commandParams);
       execCmd.setServiceName(serviceName == null || serviceName.isEmpty() ?
         resourceFilter.getServiceName() : serviceName);

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariCustomCommandExecutionHelper.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariCustomCommandExecutionHelper.java b/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariCustomCommandExecutionHelper.java
index 339194f..156427d 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariCustomCommandExecutionHelper.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariCustomCommandExecutionHelper.java
@@ -22,7 +22,6 @@ import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.COMMAND_T
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.COMPONENT_CATEGORY;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.CUSTOM_COMMAND;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.HOOKS_FOLDER;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JDK_LOCATION;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.REPO_INFO;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT;
 import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT_TYPE;
@@ -204,7 +203,7 @@ public class AmbariCustomCommandExecutionHelper {
 
   private void addCustomCommandAction(final ActionExecutionContext actionExecutionContext,
                                       final RequestResourceFilter resourceFilter,
-                                      Stage stage, Map<String, String> hostLevelParams,
+                                      Stage stage,
                                       Map<String, String> additionalCommandParams,
                                       String commandDetail)
                                       throws AmbariException {
@@ -290,6 +289,8 @@ public class AmbariCustomCommandExecutionHelper {
       if(actionExecutionContext.getParameters() != null && actionExecutionContext.getParameters().containsKey(KeyNames.REFRESH_ADITIONAL_COMPONENT_TAGS)){
         execCmd.setForceRefreshConfigTags(parseAndValidateComponentsMapping(actionExecutionContext.getParameters().get(KeyNames.REFRESH_ADITIONAL_COMPONENT_TAGS)));
       }
+ 
+      Map<String, String> hostLevelParams = new TreeMap<String, String>();
 
       hostLevelParams.put(CUSTOM_COMMAND, commandName);
       // Set parameters required for re-installing clients on restart
@@ -330,7 +331,6 @@ public class AmbariCustomCommandExecutionHelper {
       }
 
       commandParams.put(COMMAND_TIMEOUT, commandTimeout);
-      commandParams.put(JDK_LOCATION, managementController.getJdkResourceUrl());
 
       commandParams.put(SERVICE_PACKAGE_FOLDER,
           serviceInfo.getServicePackageFolder());
@@ -357,7 +357,7 @@ public class AmbariCustomCommandExecutionHelper {
 
   /**
    * splits the passed commaseparated value and returns it as set
-   * @param comma separated list
+   * @param commaSeparatedTags separated list
    * @return set of items or null
    * @throws AmbariException
    */
@@ -372,7 +372,7 @@ public class AmbariCustomCommandExecutionHelper {
   private void findHostAndAddServiceCheckAction(
           final ActionExecutionContext actionExecutionContext,
           final RequestResourceFilter resourceFilter,
-          Stage stage, Map<String, String> hostLevelParams)
+          Stage stage)
           throws AmbariException {
 
     String clusterName = actionExecutionContext.getClusterName();
@@ -438,8 +438,7 @@ public class AmbariCustomCommandExecutionHelper {
     }
 
     addServiceCheckAction(stage, hostName, smokeTestRole, nowTimestamp,
-        serviceName, componentName, actionParameters,
-        hostLevelParams);
+        serviceName, componentName, actionParameters);
   }
 
   /**
@@ -452,8 +451,7 @@ public class AmbariCustomCommandExecutionHelper {
                                     long nowTimestamp,
                                     String serviceName,
                                     String componentName,
-                                    Map<String, String> actionParameters,
-                                    Map<String, String> hostLevelParams)
+                                    Map<String, String> actionParameters)
                                     throws AmbariException {
 
     String clusterName = stage.getClusterName();
@@ -496,11 +494,6 @@ public class AmbariCustomCommandExecutionHelper {
     execCmd.setClusterHostInfo(
         StageUtils.getClusterHostInfo(clusters.getHostsForCluster(clusterName), cluster));
 
-    if (hostLevelParams == null) {
-      hostLevelParams = new TreeMap<String, String>();
-    }
-    execCmd.setHostLevelParams(hostLevelParams);
-
     Map<String, String> commandParams = new TreeMap<String, String>();
 
     String commandTimeout = configs.getDefaultAgentTaskTimeout();
@@ -525,7 +518,6 @@ public class AmbariCustomCommandExecutionHelper {
     }
 
     commandParams.put(COMMAND_TIMEOUT, commandTimeout);
-    commandParams.put(JDK_LOCATION, managementController.getJdkResourceUrl());
 
     commandParams.put(SERVICE_PACKAGE_FOLDER,
         serviceInfo.getServicePackageFolder());
@@ -557,7 +549,7 @@ public class AmbariCustomCommandExecutionHelper {
    */
   private void addDecommissionAction(final ActionExecutionContext actionExecutionContext,
                                      final RequestResourceFilter resourceFilter,
-                                     Stage stage, Map<String, String> hostLevelParams)
+                                     Stage stage)
                                      throws AmbariException {
 
     String clusterName = actionExecutionContext.getClusterName();
@@ -741,7 +733,7 @@ public class AmbariCustomCommandExecutionHelper {
       if (!serviceName.equals(Service.Type.HBASE.name()) || hostName.equals(primaryCandidate)) {
         commandParams.put(UPDATE_EXCLUDE_FILE_ONLY, "false");
         addCustomCommandAction(commandContext, commandFilter, stage,
-          hostLevelParams, commandParams, commandDetail.toString());
+          commandParams, commandDetail.toString());
       }
     }
   }
@@ -800,12 +792,10 @@ public class AmbariCustomCommandExecutionHelper {
    * Other than Service_Check and Decommission all other commands are pass-through
    * @param actionExecutionContext received request to execute a command
    * @param stage the initial stage for task creation
-   * @param hostLevelParams specific parameters for the hosts
    * @throws AmbariException
    */
   public void addExecutionCommandsToStage(ActionExecutionContext actionExecutionContext,
                                           Stage stage,
-                                          Map<String, String> hostLevelParams,
                                           Map<String, String> requestParams)
                                           throws AmbariException {
 
@@ -819,9 +809,9 @@ public class AmbariCustomCommandExecutionHelper {
 
       if (actionExecutionContext.getActionName().contains(SERVICE_CHECK_COMMAND_NAME)) {
         findHostAndAddServiceCheckAction(actionExecutionContext,
-          resourceFilter, stage, hostLevelParams);
+          resourceFilter, stage);
       } else if (actionExecutionContext.getActionName().equals(DECOMMISSION_COMMAND_NAME)) {
-        addDecommissionAction(actionExecutionContext, resourceFilter, stage, hostLevelParams);
+        addDecommissionAction(actionExecutionContext, resourceFilter, stage);
       } else if (isValidCustomCommand(actionExecutionContext, resourceFilter)) {
         String commandDetail = getReadableCustomCommandDetail(actionExecutionContext, resourceFilter);
 
@@ -838,7 +828,7 @@ public class AmbariCustomCommandExecutionHelper {
           actionExecutionContext.getParameters().put(KeyNames.REFRESH_ADITIONAL_COMPONENT_TAGS, requestParams.get(KeyNames.REFRESH_ADITIONAL_COMPONENT_TAGS));
         }
         addCustomCommandAction(actionExecutionContext, resourceFilter, stage,
-          hostLevelParams, extraParams, commandDetail);
+          extraParams, commandDetail);
       } else {
         throw new AmbariException("Unsupported action " +
           actionExecutionContext.getActionName());

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementControllerImpl.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementControllerImpl.java b/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementControllerImpl.java
index 3b80515..c465189 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementControllerImpl.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementControllerImpl.java
@@ -18,13 +18,48 @@
 
 package org.apache.ambari.server.controller;
 
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import com.google.gson.Gson;
-import com.google.inject.Inject;
-import com.google.inject.Injector;
-import com.google.inject.Singleton;
-import com.google.inject.persist.Transactional;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_DRIVER;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_PASSWORD;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_URL;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_USERNAME;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.COMMAND_TIMEOUT;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.DB_DRIVER_FILENAME;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.DB_NAME;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.HOOKS_FOLDER;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JAVA_HOME;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JCE_NAME;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JDK_LOCATION;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JDK_NAME;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.MYSQL_JDBC_URL;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.ORACLE_JDBC_URL;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.PACKAGE_LIST;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.REPO_INFO;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT_TYPE;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SERVICE_PACKAGE_FOLDER;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SERVICE_REPO_INFO;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.STACK_NAME;
+import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.STACK_VERSION;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.InetAddress;
+import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.EnumMap;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.concurrent.TimeUnit;
+
 import org.apache.ambari.server.AmbariException;
 import org.apache.ambari.server.ClusterNotFoundException;
 import org.apache.ambari.server.DuplicateResourceException;
@@ -101,46 +136,14 @@ import org.apache.commons.lang.math.NumberUtils;
 import org.apache.http.client.utils.URIBuilder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import java.io.File;
-import java.io.IOException;
-import java.net.InetAddress;
-import java.text.MessageFormat;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.EnumMap;
-import java.util.EnumSet;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-import java.util.TreeMap;
-import java.util.concurrent.TimeUnit;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_DRIVER;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_PASSWORD;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_URL;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.AMBARI_DB_RCA_USERNAME;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.COMMAND_TIMEOUT;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.DB_DRIVER_FILENAME;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.DB_NAME;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.HOOKS_FOLDER;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JAVA_HOME;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JCE_NAME;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JDK_LOCATION;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.JDK_NAME;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.MYSQL_JDBC_URL;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.ORACLE_JDBC_URL;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.PACKAGE_LIST;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.REPO_INFO;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SCRIPT_TYPE;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SERVICE_PACKAGE_FOLDER;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.SERVICE_REPO_INFO;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.STACK_NAME;
-import static org.apache.ambari.server.agent.ExecutionCommand.KeyNames.STACK_VERSION;
+
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import com.google.gson.Gson;
+import com.google.inject.Inject;
+import com.google.inject.Injector;
+import com.google.inject.Singleton;
+import com.google.inject.persist.Transactional;
 
 @Singleton
 public class AmbariManagementControllerImpl implements AmbariManagementController {
@@ -798,13 +801,16 @@ public class AmbariManagementControllerImpl implements AmbariManagementControlle
     }
   }
 
-  private Stage createNewStage(long id, Cluster cluster, long requestId, String requestContext, String clusterHostInfo) {
+  private Stage createNewStage(long id, Cluster cluster, long requestId,
+                               String requestContext, String clusterHostInfo,
+                               String commandParamsStage, String hostParamsStage) {
     String logDir = BASE_LOG_DIR + File.pathSeparator + requestId;
     Stage stage =
         stageFactory.createNew(requestId, logDir,
             null == cluster ? null : cluster.getClusterName(),
             null == cluster ? -1L : cluster.getClusterId(),
-            requestContext, clusterHostInfo);
+            requestContext, clusterHostInfo, commandParamsStage,
+            hostParamsStage);
     stage.setStageId(id);
     return stage;
   }
@@ -1582,7 +1588,7 @@ public class AmbariManagementControllerImpl implements AmbariManagementControlle
         + ", repoInfo=" + repoInfo);
     }
 
-    Map<String, String> hostParams = createDefaultHostParams(cluster);
+    Map<String, String> hostParams = new TreeMap<String, String>();
     hostParams.put(REPO_INFO, repoInfo);
     hostParams.putAll(getRcaParameters());
 
@@ -1731,9 +1737,11 @@ public class AmbariManagementControllerImpl implements AmbariManagementControlle
           clusters.getHostsForCluster(cluster.getClusterName()), cluster);
 
       String clusterHostInfoJson = StageUtils.getGson().toJson(clusterHostInfo);
+      String HostParamsJson = StageUtils.getGson().toJson(createDefaultHostParams(cluster));
 
       Stage stage = createNewStage(requestStages.getLastStageId() + 1, cluster,
-          requestStages.getId(), requestProperties.get(REQUEST_CONTEXT_PROPERTY), clusterHostInfoJson);
+          requestStages.getId(), requestProperties.get(REQUEST_CONTEXT_PROPERTY),
+          clusterHostInfoJson, "{}", HostParamsJson);
 
       //HACK
       String jobtrackerHost = getJobTrackerHost(cluster);
@@ -1945,7 +1953,7 @@ public class AmbariManagementControllerImpl implements AmbariManagementControlle
 
         customCommandExecutionHelper.addServiceCheckAction(stage, clientHost,
           smokeTestRole, nowTimestamp, serviceName,
-          null, null, createDefaultHostParams(cluster));
+          null, null);
       }
 
       RoleCommandOrder rco = getRoleCommandOrder(cluster);
@@ -2947,24 +2955,28 @@ public class AmbariManagementControllerImpl implements AmbariManagementControlle
       actionExecutionHelper.validateAction(actionRequest);
     }
 
-    Map<String, String> params = new HashMap<String, String>();
+    Map<String, String> commandParamsStage = StageUtils.getCommandParamsStage(actionExecContext);
+    Map<String, String> hostParamsStage = new HashMap<String, String>();
     Map<String, Set<String>> clusterHostInfo;
     String clusterHostInfoJson = "{}";
 
     if (null != cluster) {
       clusterHostInfo = StageUtils.getClusterHostInfo(
         clusters.getHostsForCluster(cluster.getClusterName()), cluster);
-      params = createDefaultHostParams(cluster);
+      hostParamsStage = createDefaultHostParams(cluster);
       clusterHostInfoJson = StageUtils.getGson().toJson(clusterHostInfo);
     }
 
-    Stage stage = createNewStage(0, cluster, actionManager.getNextRequestId(), requestContext, clusterHostInfoJson);
+    String hostParamsStageJson = StageUtils.getGson().toJson(hostParamsStage);
+    String commandParamsStageJson = StageUtils.getGson().toJson(commandParamsStage);
+
+    Stage stage = createNewStage(0, cluster, actionManager.getNextRequestId(), requestContext,
+      clusterHostInfoJson, commandParamsStageJson, hostParamsStageJson);
 
     if (actionRequest.isCommand()) {
-      customCommandExecutionHelper.addExecutionCommandsToStage(actionExecContext, stage,
-          params, requestProperties);
+      customCommandExecutionHelper.addExecutionCommandsToStage(actionExecContext, stage, requestProperties);
     } else {
-      actionExecutionHelper.addExecutionCommandsToStage(actionExecContext, stage, params);
+      actionExecutionHelper.addExecutionCommandsToStage(actionExecContext, stage);
     }
 
     RoleGraph rg;

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/orm/entities/StageEntity.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/orm/entities/StageEntity.java b/ambari-server/src/main/java/org/apache/ambari/server/orm/entities/StageEntity.java
index 245c9e9..a7bc948 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/orm/entities/StageEntity.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/orm/entities/StageEntity.java
@@ -51,6 +51,14 @@ public class StageEntity {
   @Column(name = "cluster_host_info")
   @Basic
   private byte[] clusterHostInfo;
+ 
+  @Column(name = "command_params")
+  @Basic
+  private byte[] commandParamsStage;
+
+  @Column(name = "host_params")
+  @Basic
+  private byte[] hostParamsStage;
 
   @ManyToOne
   @JoinColumn(name = "request_id", referencedColumnName = "request_id", nullable = false)
@@ -106,6 +114,22 @@ public class StageEntity {
   public void setClusterHostInfo(String clusterHostInfo) {
     this.clusterHostInfo = clusterHostInfo.getBytes();
   }
+ 
+  public String getCommandParamsStage() {
+    return commandParamsStage == null ? new String() : new String(commandParamsStage);
+  }
+
+  public void setCommandParamsStage(String commandParamsStage) {
+    this.commandParamsStage = commandParamsStage.getBytes();
+  }
+
+  public String getHostParamsStage() {
+    return hostParamsStage == null ? new String() : new String(hostParamsStage);
+  }
+
+  public void setHostParamsStage(String hostParamsStage) {
+    this.hostParamsStage = hostParamsStage.getBytes();
+  }
 
   public void setRequestContext(String requestContext) {
     if (requestContext != null) {
@@ -125,6 +149,8 @@ public class StageEntity {
     if (requestId != null ? !requestId.equals(that.requestId) : that.requestId != null) return false;
     if (stageId != null ? !stageId.equals(that.stageId) : that.stageId != null) return false;
     if (clusterHostInfo != null ? !clusterHostInfo.equals(that.clusterHostInfo) : that.clusterHostInfo != null) return false;
+    if (commandParamsStage != null ? !commandParamsStage.equals(that.commandParamsStage) : that.commandParamsStage != null) return false;
+    if (hostParamsStage != null ? !hostParamsStage.equals(that.hostParamsStage) : that.hostParamsStage != null) return false;
     return !(requestContext != null ? !requestContext.equals(that.requestContext) : that.requestContext != null);
 
   }
@@ -136,6 +162,8 @@ public class StageEntity {
     result = 31 * result + (stageId != null ? stageId.hashCode() : 0);
     result = 31 * result + (logInfo != null ? logInfo.hashCode() : 0);
     result = 31 * result + (clusterHostInfo != null ? clusterHostInfo.hashCode() : 0);
+    result = 31 * result + (commandParamsStage != null ? commandParamsStage.hashCode() : 0);
+    result = 31 * result + (hostParamsStage != null ? hostParamsStage.hashCode() : 0);
     result = 31 * result + (requestContext != null ? requestContext.hashCode() : 0);
     return result;
   }

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/stageplanner/RoleGraph.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/stageplanner/RoleGraph.java b/ambari-server/src/main/java/org/apache/ambari/server/stageplanner/RoleGraph.java
index 913b878..4fe3787 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/stageplanner/RoleGraph.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/stageplanner/RoleGraph.java
@@ -139,7 +139,8 @@ public class RoleGraph {
     Stage newStage = new Stage(origStage.getRequestId(),
         origStage.getLogDir(), origStage.getClusterName(),
         origStage.getClusterId(),
-        origStage.getRequestContext(), origStage.getClusterHostInfo());
+        origStage.getRequestContext(), origStage.getClusterHostInfo(),
+        origStage.getCommandParamsStage(), origStage.getHostParamsStage());
     newStage.setSuccessFactors(origStage.getSuccessFactors());
     for (RoleGraphNode rgn : stageGraphNodes) {
       for (String host : rgn.getHosts()) {

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog170.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog170.java b/ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog170.java
index 30059ac..dc3d5b8 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog170.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog170.java
@@ -73,7 +73,6 @@ import org.apache.ambari.server.state.Cluster;
 import org.apache.ambari.server.state.Clusters;
 import org.apache.ambari.server.state.Config;
 import org.apache.ambari.server.state.ConfigHelper;
-import org.apache.ambari.server.view.configuration.InstanceConfig;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -249,6 +248,12 @@ public class UpgradeCatalog170 extends AbstractUpgradeCatalog {
 
     dbAccessor.addColumn("host_role_command", new DBColumnInfo("output_log",
         String.class, 255, null, true));
+
+    dbAccessor.addColumn("stage", new DBColumnInfo("command_params",
+      byte[].class, null, null, true));
+    dbAccessor.addColumn("stage", new DBColumnInfo("host_params",
+      byte[].class, null, null, true));
+
     dbAccessor.addColumn("host_role_command", new DBColumnInfo("error_log",
         String.class, 255, null, true));
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/java/org/apache/ambari/server/utils/StageUtils.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/utils/StageUtils.java b/ambari-server/src/main/java/org/apache/ambari/server/utils/StageUtils.java
index 7160bcf..2a13653 100644
--- a/ambari-server/src/main/java/org/apache/ambari/server/utils/StageUtils.java
+++ b/ambari-server/src/main/java/org/apache/ambari/server/utils/StageUtils.java
@@ -17,14 +17,32 @@
  */
 package org.apache.ambari.server.utils;
 
-import com.google.common.base.Joiner;
-import com.google.gson.Gson;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import javax.xml.bind.JAXBException;
+
 import org.apache.ambari.server.AmbariException;
 import org.apache.ambari.server.Role;
 import org.apache.ambari.server.RoleCommand;
 import org.apache.ambari.server.actionmanager.Stage;
 import org.apache.ambari.server.agent.ExecutionCommand;
-import org.apache.ambari.server.configuration.Configuration;
+import org.apache.ambari.server.controller.ActionExecutionContext;
 import org.apache.ambari.server.state.Cluster;
 import org.apache.ambari.server.state.Host;
 import org.apache.ambari.server.state.HostComponentAdminState;
@@ -40,25 +58,8 @@ import org.codehaus.jackson.map.JsonMappingException;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.codehaus.jackson.map.SerializationConfig;
 
-import javax.xml.bind.JAXBException;
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.InetAddress;
-import java.net.UnknownHostException;
-import java.nio.charset.Charset;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-import java.util.SortedSet;
-import java.util.TreeMap;
-import java.util.TreeSet;
+import com.google.common.base.Joiner;
+import com.google.gson.Gson;
 
 public class StageUtils {
 
@@ -148,20 +149,20 @@ public class StageUtils {
     return requestStageIds;
   }
 
-  public static Stage getATestStage(long requestId, long stageId, String clusterHostInfo) {
+  public static Stage getATestStage(long requestId, long stageId, String clusterHostInfo, String commandParamsStage, String hostParamsStage) {
     String hostname;
     try {
       hostname = InetAddress.getLocalHost().getHostName();
     } catch (UnknownHostException e) {
       hostname = "host-dummy";
     }
-    return getATestStage(requestId, stageId, hostname, clusterHostInfo);
+    return getATestStage(requestId, stageId, hostname, clusterHostInfo, commandParamsStage, hostParamsStage);
   }
 
   //For testing only
-  public static Stage getATestStage(long requestId, long stageId, String hostname, String clusterHostInfo) {
+  public static Stage getATestStage(long requestId, long stageId, String hostname, String clusterHostInfo, String commandParamsStage, String hostParamsStage) {
 
-    Stage s = new Stage(requestId, "/tmp", "cluster1", 1L, "context", clusterHostInfo);
+    Stage s = new Stage(requestId, "/tmp", "cluster1", 1L, "context", clusterHostInfo, commandParamsStage, hostParamsStage);
     s.setStageId(stageId);
     long now = System.currentTimeMillis();
     s.addHostRoleExecutionCommand(hostname, Role.NAMENODE, RoleCommand.INSTALL,
@@ -221,6 +222,10 @@ public class StageUtils {
     InputStream is = new ByteArrayInputStream(json.getBytes(Charset.forName("UTF8")));
     return mapper.readValue(is, clazz);
   }
+ 
+  public static Map<String, String> getCommandParamsStage(ActionExecutionContext actionExecContext) throws AmbariException {
+    return actionExecContext.getParameters() != null ? actionExecContext.getParameters() : new TreeMap<String, String>();
+  }
 
   public static Map<String, Set<String>> getClusterHostInfo(
       Map<String, Host> allHosts, Cluster cluster) throws AmbariException {

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/resources/Ambari-DDL-MySQL-CREATE.sql
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/Ambari-DDL-MySQL-CREATE.sql b/ambari-server/src/main/resources/Ambari-DDL-MySQL-CREATE.sql
index 29fa041..2d83aeb 100644
--- a/ambari-server/src/main/resources/Ambari-DDL-MySQL-CREATE.sql
+++ b/ambari-server/src/main/resources/Ambari-DDL-MySQL-CREATE.sql
@@ -45,7 +45,7 @@ CREATE TABLE members (member_id INTEGER, group_id INTEGER NOT NULL, user_id INTE
 CREATE TABLE execution_command (task_id BIGINT NOT NULL, command LONGBLOB, PRIMARY KEY (task_id));
 CREATE TABLE host_role_command (task_id BIGINT NOT NULL, attempt_count SMALLINT NOT NULL, event LONGTEXT NOT NULL, exitcode INTEGER NOT NULL, host_name VARCHAR(255) NOT NULL, last_attempt_time BIGINT NOT NULL, request_id BIGINT NOT NULL, role VARCHAR(255), role_command VARCHAR(255), stage_id BIGINT NOT NULL, start_time BIGINT NOT NULL, end_time BIGINT, status VARCHAR(255), std_error LONGBLOB, std_out LONGBLOB, output_log VARCHAR(255) NULL, error_log VARCHAR(255) NULL, structured_out LONGBLOB, command_detail VARCHAR(255), custom_command_name VARCHAR(255), PRIMARY KEY (task_id));
 CREATE TABLE role_success_criteria (role VARCHAR(255) NOT NULL, request_id BIGINT NOT NULL, stage_id BIGINT NOT NULL, success_factor DOUBLE NOT NULL, PRIMARY KEY (role, request_id, stage_id));
-CREATE TABLE stage (stage_id BIGINT NOT NULL, request_id BIGINT NOT NULL, cluster_id BIGINT, log_info VARCHAR(255) NOT NULL, request_context VARCHAR(255), cluster_host_info LONGBLOB, PRIMARY KEY (stage_id, request_id));
+CREATE TABLE stage (stage_id BIGINT NOT NULL, request_id BIGINT NOT NULL, cluster_id BIGINT, log_info VARCHAR(255) NOT NULL, request_context VARCHAR(255), cluster_host_info LONGBLOB, command_params LONGBLOB, host_params LONGBLOB, PRIMARY KEY (stage_id, request_id));
 CREATE TABLE request (request_id BIGINT NOT NULL, cluster_id BIGINT, request_schedule_id BIGINT, command_name VARCHAR(255), create_time BIGINT NOT NULL, end_time BIGINT NOT NULL, inputs LONGBLOB, request_context VARCHAR(255), request_type VARCHAR(255), start_time BIGINT NOT NULL, status VARCHAR(255), PRIMARY KEY (request_id));
 CREATE TABLE requestresourcefilter (filter_id BIGINT NOT NULL, request_id BIGINT NOT NULL, service_name VARCHAR(255), component_name VARCHAR(255), hosts LONGBLOB, PRIMARY KEY (filter_id));
 CREATE TABLE requestoperationlevel (operation_level_id BIGINT NOT NULL, request_id BIGINT NOT NULL, level_name VARCHAR(255), cluster_name VARCHAR(255), service_name VARCHAR(255), host_component_name VARCHAR(255), host_name VARCHAR(255), PRIMARY KEY (operation_level_id));

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/resources/Ambari-DDL-Oracle-CREATE.sql
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/Ambari-DDL-Oracle-CREATE.sql b/ambari-server/src/main/resources/Ambari-DDL-Oracle-CREATE.sql
index 457404d..241bb2b 100644
--- a/ambari-server/src/main/resources/Ambari-DDL-Oracle-CREATE.sql
+++ b/ambari-server/src/main/resources/Ambari-DDL-Oracle-CREATE.sql
@@ -36,7 +36,7 @@ CREATE TABLE members (member_id NUMBER(10), group_id NUMBER(10) NOT NULL, user_i
 CREATE TABLE execution_command (task_id NUMBER(19) NOT NULL, command BLOB NULL, PRIMARY KEY (task_id));
 CREATE TABLE host_role_command (task_id NUMBER(19) NOT NULL, attempt_count NUMBER(5) NOT NULL, event CLOB NULL, exitcode NUMBER(10) NOT NULL, host_name VARCHAR2(255) NOT NULL, last_attempt_time NUMBER(19) NOT NULL, request_id NUMBER(19) NOT NULL, role VARCHAR2(255) NULL, role_command VARCHAR2(255) NULL, stage_id NUMBER(19) NOT NULL, start_time NUMBER(19) NOT NULL, end_time NUMBER(19), status VARCHAR2(255) NULL, std_error BLOB NULL, std_out BLOB NULL, output_log VARCHAR2(255) NULL, error_log VARCHAR2(255) NULL, structured_out BLOB NULL,  command_detail VARCHAR2(255) NULL, custom_command_name VARCHAR2(255) NULL, PRIMARY KEY (task_id));
 CREATE TABLE role_success_criteria (role VARCHAR2(255) NOT NULL, request_id NUMBER(19) NOT NULL, stage_id NUMBER(19) NOT NULL, success_factor NUMBER(19,4) NOT NULL, PRIMARY KEY (role, request_id, stage_id));
-CREATE TABLE stage (stage_id NUMBER(19) NOT NULL, request_id NUMBER(19) NOT NULL, cluster_id NUMBER(19) NULL, log_info VARCHAR2(255) NULL, request_context VARCHAR2(255) NULL, cluster_host_info BLOB NOT NULL, PRIMARY KEY (stage_id, request_id));
+CREATE TABLE stage (stage_id NUMBER(19) NOT NULL, request_id NUMBER(19) NOT NULL, cluster_id NUMBER(19) NULL, log_info VARCHAR2(255) NULL, request_context VARCHAR2(255) NULL, cluster_host_info BLOB NOT NULL, command_params BLOB, host_params BLOB, PRIMARY KEY (stage_id, request_id));
 CREATE TABLE request (request_id NUMBER(19) NOT NULL, cluster_id NUMBER(19), request_schedule_id NUMBER(19), command_name VARCHAR(255), create_time NUMBER(19) NOT NULL, end_time NUMBER(19) NOT NULL, inputs BLOB, request_context VARCHAR(255), request_type VARCHAR(255), start_time NUMBER(19) NOT NULL, status VARCHAR(255), PRIMARY KEY (request_id));
 CREATE TABLE requestresourcefilter (filter_id NUMBER(19) NOT NULL, request_id NUMBER(19) NOT NULL, service_name VARCHAR2(255), component_name VARCHAR2(255), hosts BLOB, PRIMARY KEY (filter_id));
 CREATE TABLE requestoperationlevel (operation_level_id NUMBER(19) NOT NULL, request_id NUMBER(19) NOT NULL, level_name VARCHAR2(255), cluster_name VARCHAR2(255), service_name VARCHAR2(255), host_component_name VARCHAR2(255), host_name VARCHAR2(255), PRIMARY KEY (operation_level_id));

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/resources/Ambari-DDL-Postgres-CREATE.sql
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/Ambari-DDL-Postgres-CREATE.sql b/ambari-server/src/main/resources/Ambari-DDL-Postgres-CREATE.sql
index b58fd21..ddea71c 100644
--- a/ambari-server/src/main/resources/Ambari-DDL-Postgres-CREATE.sql
+++ b/ambari-server/src/main/resources/Ambari-DDL-Postgres-CREATE.sql
@@ -57,7 +57,7 @@ CREATE TABLE host_role_command (task_id BIGINT NOT NULL, attempt_count SMALLINT
 
 CREATE TABLE role_success_criteria (role VARCHAR(255) NOT NULL, request_id BIGINT NOT NULL, stage_id BIGINT NOT NULL, success_factor FLOAT NOT NULL, PRIMARY KEY (role, request_id, stage_id));
 
-CREATE TABLE stage (stage_id BIGINT NOT NULL, request_id BIGINT NOT NULL, cluster_id BIGINT NOT NULL, log_info VARCHAR(255) NOT NULL, request_context VARCHAR(255), cluster_host_info BYTEA NOT NULL, PRIMARY KEY (stage_id, request_id));
+CREATE TABLE stage (stage_id BIGINT NOT NULL, request_id BIGINT NOT NULL, cluster_id BIGINT NOT NULL, log_info VARCHAR(255) NOT NULL, request_context VARCHAR(255), cluster_host_info BYTEA NOT NULL, command_params BYTEA, host_params BYTEA, PRIMARY KEY (stage_id, request_id));
 
 CREATE TABLE request (request_id BIGINT NOT NULL, cluster_id BIGINT, command_name VARCHAR(255), create_time BIGINT NOT NULL, end_time BIGINT NOT NULL, inputs BYTEA, request_context VARCHAR(255), request_type VARCHAR(255), request_schedule_id BIGINT, start_time BIGINT NOT NULL, status VARCHAR(255), PRIMARY KEY (request_id));
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/main/resources/Ambari-DDL-Postgres-EMBEDDED-CREATE.sql
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/Ambari-DDL-Postgres-EMBEDDED-CREATE.sql b/ambari-server/src/main/resources/Ambari-DDL-Postgres-EMBEDDED-CREATE.sql
index 664bbe9..17b95c2 100644
--- a/ambari-server/src/main/resources/Ambari-DDL-Postgres-EMBEDDED-CREATE.sql
+++ b/ambari-server/src/main/resources/Ambari-DDL-Postgres-EMBEDDED-CREATE.sql
@@ -88,7 +88,7 @@ GRANT ALL PRIVILEGES ON TABLE ambari.host_role_command TO :username;
 CREATE TABLE ambari.role_success_criteria (role VARCHAR(255) NOT NULL, request_id BIGINT NOT NULL, stage_id BIGINT NOT NULL, success_factor FLOAT NOT NULL, PRIMARY KEY (role, request_id, stage_id));
 GRANT ALL PRIVILEGES ON TABLE ambari.role_success_criteria TO :username;
 
-CREATE TABLE ambari.stage (stage_id BIGINT NOT NULL, request_id BIGINT NOT NULL, cluster_id BIGINT NOT NULL, log_info VARCHAR(255) NOT NULL, request_context VARCHAR(255), cluster_host_info BYTEA NOT NULL, PRIMARY KEY (stage_id, request_id));
+CREATE TABLE ambari.stage (stage_id BIGINT NOT NULL, request_id BIGINT NOT NULL, cluster_id BIGINT NOT NULL, log_info VARCHAR(255) NOT NULL, request_context VARCHAR(255), cluster_host_info BYTEA NOT NULL, command_params BYTEA, host_params BYTEA, PRIMARY KEY (stage_id, request_id));
 GRANT ALL PRIVILEGES ON TABLE ambari.stage TO :username;
 
 CREATE TABLE ambari.request (request_id BIGINT NOT NULL, cluster_id BIGINT, command_name VARCHAR(255), create_time BIGINT NOT NULL, end_time BIGINT NOT NULL, inputs BYTEA, request_context VARCHAR(255), request_type VARCHAR(255), request_schedule_id BIGINT, start_time BIGINT NOT NULL, status VARCHAR(255), PRIMARY KEY (request_id));

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/ExecutionCommandWrapperTest.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/ExecutionCommandWrapperTest.java b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/ExecutionCommandWrapperTest.java
index 034ac5b..948f137 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/ExecutionCommandWrapperTest.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/ExecutionCommandWrapperTest.java
@@ -155,7 +155,7 @@ public class ExecutionCommandWrapperTest {
   
   private static void createTask(ActionDBAccessor db, long requestId, long stageId, String hostName, String clusterName) throws AmbariException {
     
-    Stage s = new Stage(requestId, "/var/log", clusterName, 1L, "execution command wrapper test", "clusterHostInfo");
+    Stage s = new Stage(requestId, "/var/log", clusterName, 1L, "execution command wrapper test", "clusterHostInfo", "commandParamsStage", "hostParamsStage");
     s.setStageId(stageId);
     s.addHostRoleExecutionCommand(hostName, Role.NAMENODE,
         RoleCommand.START,

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionDBAccessorImpl.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionDBAccessorImpl.java b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionDBAccessorImpl.java
index 2850897..6d4f056 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionDBAccessorImpl.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionDBAccessorImpl.java
@@ -16,15 +16,15 @@
  * limitations under the License.
  */
 package org.apache.ambari.server.actionmanager;
+ 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
-import com.google.inject.persist.UnitOfWork;
-
-import junit.framework.Assert;
-
 import org.apache.ambari.server.AmbariException;
 import org.apache.ambari.server.Role;
 import org.apache.ambari.server.RoleCommand;
@@ -52,8 +52,9 @@ import com.google.inject.Guice;
 import com.google.inject.Inject;
 import com.google.inject.Injector;
 import com.google.inject.persist.PersistService;
+import com.google.inject.persist.UnitOfWork;
 
-import static org.junit.Assert.*;
+import junit.framework.Assert;
 
 public class TestActionDBAccessorImpl {
   private static final Logger log = LoggerFactory.getLogger(TestActionDBAccessorImpl.class);
@@ -348,7 +349,8 @@ public class TestActionDBAccessorImpl {
 
   @Test
   public void testAbortRequest() throws AmbariException {
-    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action db accessor test", "clusterHostInfo");
+    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action db accessor test",
+      "clusterHostInfo", "commandParamsStage", "hostParamsStage");
     s.setStageId(stageId);
 
     clusters.addHost("host2");
@@ -412,7 +414,8 @@ public class TestActionDBAccessorImpl {
   }
 
   private Stage createStubStage(String hostname, long requestId, long stageId) {
-    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action db accessor test", "clusterHostInfo");
+    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action db accessor test",
+      "clusterHostInfo", "commandParamsStage", "hostParamsStage");
     s.setStageId(stageId);
     s.addHostRoleExecutionCommand(hostname, Role.HBASE_MASTER,
         RoleCommand.START,
@@ -429,7 +432,8 @@ public class TestActionDBAccessorImpl {
 
   private void populateActionDBWithCustomAction(ActionDBAccessor db, String hostname,
                                 long requestId, long stageId) throws AmbariException {
-    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action db accessor test", "");
+    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action db accessor test",
+      "", "commandParamsStage", "hostParamsStage");
     s.setStageId(stageId);
     s.addHostRoleExecutionCommand(hostname, Role.valueOf(actionName),
         RoleCommand.ACTIONEXECUTE,

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionManager.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionManager.java b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionManager.java
index 39bc762..5a2c467 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionManager.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionManager.java
@@ -17,17 +17,24 @@
  */
 package org.apache.ambari.server.actionmanager;
 
-import com.google.inject.Guice;
-import com.google.inject.Injector;
-import com.google.inject.persist.PersistService;
-import com.google.inject.persist.UnitOfWork;
-import junit.framework.Assert;
+import static org.easymock.EasyMock.createNiceMock;
+import static org.easymock.EasyMock.createStrictMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.verify;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertSame;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
 import org.apache.ambari.server.AmbariException;
 import org.apache.ambari.server.Role;
 import org.apache.ambari.server.RoleCommand;
 import org.apache.ambari.server.agent.ActionQueue;
 import org.apache.ambari.server.agent.CommandReport;
-import org.apache.ambari.server.api.services.BaseRequest;
 import org.apache.ambari.server.controller.HostsMap;
 import org.apache.ambari.server.orm.GuiceJpaInitializer;
 import org.apache.ambari.server.orm.InMemoryDefaultTestModule;
@@ -39,12 +46,12 @@ import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Test;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import com.google.inject.persist.PersistService;
+import com.google.inject.persist.UnitOfWork;
 
-import static org.easymock.EasyMock.*;
-import static org.junit.Assert.*;
+import junit.framework.Assert;
 
 public class TestActionManager {
 
@@ -160,7 +167,7 @@ public class TestActionManager {
   }
 
   private void populateActionDB(ActionDBAccessor db, String hostname) throws AmbariException {
-    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action manager test", "clusterHostInfo");
+    Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action manager test", "clusterHostInfo", "commandParamsStage", "hostParamsStage");
     s.setStageId(stageId);
     s.addHostRoleExecutionCommand(hostname, Role.HBASE_MASTER,
         RoleCommand.START,

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionScheduler.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionScheduler.java b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionScheduler.java
index a536bef..c4a88cf 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionScheduler.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionScheduler.java
@@ -127,7 +127,8 @@ public class TestActionScheduler {
 
     ActionDBAccessor db = mock(ActionDBAccessorImpl.class);
     List<Stage> stages = new ArrayList<Stage>();
-    Stage s = StageUtils.getATestStage(1, 977, hostname, CLUSTER_HOST_INFO);
+    Stage s = StageUtils.getATestStage(1, 977, hostname, CLUSTER_HOST_INFO,
+      "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
     stages.add(s);
     when(db.getStagesInProgress()).thenReturn(stages);
 
@@ -207,7 +208,8 @@ public class TestActionScheduler {
     when(host.getHostName()).thenReturn(hostname);
 
     List<Stage> stages = new ArrayList<Stage>();
-    final Stage s = StageUtils.getATestStage(1, 977, hostname, CLUSTER_HOST_INFO);
+    final Stage s = StageUtils.getATestStage(1, 977, hostname, CLUSTER_HOST_INFO,
+      "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
     stages.add(s);
 
     ActionDBAccessor db = mock(ActionDBAccessor.class);
@@ -271,7 +273,8 @@ public class TestActionScheduler {
     when(host.getHostName()).thenReturn(hostname);
 
     List<Stage> stages = new ArrayList<Stage>();
-    final Stage s = StageUtils.getATestStage(1, 977, hostname, CLUSTER_HOST_INFO);
+    final Stage s = StageUtils.getATestStage(1, 977, hostname, CLUSTER_HOST_INFO,
+      "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
     stages.add(s);
 
     ActionDBAccessor db = mock(ActionDBAccessor.class);
@@ -349,7 +352,7 @@ public class TestActionScheduler {
 
     final List<Stage> stages = new ArrayList<Stage>();
     Stage stage = new Stage(1, "/tmp", "cluster1", 1L, "stageWith2Tasks",
-      CLUSTER_HOST_INFO);
+      CLUSTER_HOST_INFO, "", "");
     addInstallTaskToStage(stage, hostname1, "cluster1", Role.DATANODE,
       RoleCommand.INSTALL, Service.Type.HDFS, 1);
     addInstallTaskToStage(stage, hostname2, "cluster1", Role.NAMENODE,
@@ -575,7 +578,8 @@ public class TestActionScheduler {
 
   private static Stage getStageWithServerAction(long requestId, long stageId, String hostName,
                                                 Map<String, String> payload, String requestContext) {
-    Stage stage = new Stage(requestId, "/tmp", "cluster1", 1L, requestContext, CLUSTER_HOST_INFO);
+    Stage stage = new Stage(requestId, "/tmp", "cluster1", 1L, requestContext, CLUSTER_HOST_INFO,
+      "", "");
     stage.setStageId(stageId);
     long now = System.currentTimeMillis();
     stage.addServerActionCommand(ServerAction.Command.FINALIZE_UPGRADE, Role.AMBARI_SERVER_ACTION,
@@ -989,7 +993,7 @@ public class TestActionScheduler {
 
     long now = System.currentTimeMillis();
     Stage stage = new Stage(1, "/tmp", "cluster1", 1L,
-        "testRequestFailureBasedOnSuccessFactor", CLUSTER_HOST_INFO);
+        "testRequestFailureBasedOnSuccessFactor", CLUSTER_HOST_INFO, "", "");
     stage.setStageId(1);
 
     addHostRoleExecutionCommand(now, stage, Role.SQOOP, Service.Type.SQOOP,
@@ -1174,7 +1178,8 @@ public class TestActionScheduler {
     final List<Stage> stages = new ArrayList<Stage>();
 
     long now = System.currentTimeMillis();
-    Stage stage = new Stage(1, "/tmp", "cluster1", 1L, "testRequestFailureBasedOnSuccessFactor", CLUSTER_HOST_INFO);
+    Stage stage = new Stage(1, "/tmp", "cluster1", 1L, "testRequestFailureBasedOnSuccessFactor",
+      CLUSTER_HOST_INFO, "", "");
     stage.setStageId(1);
     stage.addHostRoleExecutionCommand("host1", Role.DATANODE, RoleCommand.UPGRADE,
         new ServiceComponentHostUpgradeEvent(Role.DATANODE.toString(), "host1", now, "HDP-0.2"),
@@ -1310,7 +1315,8 @@ public class TestActionScheduler {
   private Stage getStageWithSingleTask(String hostname, String clusterName, Role role,
                                        RoleCommand roleCommand, Service.Type service, int taskId,
                                        int stageId, int requestId) {
-    Stage stage = new Stage(requestId, "/tmp", clusterName, 1L, "getStageWithSingleTask", CLUSTER_HOST_INFO);
+    Stage stage = new Stage(requestId, "/tmp", clusterName, 1L, "getStageWithSingleTask",
+      CLUSTER_HOST_INFO, "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
     stage.setStageId(stageId);
     stage.addHostRoleExecutionCommand(hostname, role, roleCommand,
         new ServiceComponentHostUpgradeEvent(role.toString(), hostname, System.currentTimeMillis(), "HDP-0.2"),
@@ -1354,7 +1360,8 @@ public class TestActionScheduler {
 
   @Test
   public void testSuccessFactors() {
-    Stage s = StageUtils.getATestStage(1, 1, CLUSTER_HOST_INFO);
+    Stage s = StageUtils.getATestStage(1, 1, CLUSTER_HOST_INFO,
+      "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
     assertEquals(new Float(0.5), new Float(s.getSuccessFactor(Role.DATANODE)));
     assertEquals(new Float(0.5), new Float(s.getSuccessFactor(Role.TASKTRACKER)));
     assertEquals(new Float(0.5), new Float(s.getSuccessFactor(Role.GANGLIA_MONITOR)));
@@ -1427,8 +1434,10 @@ public class TestActionScheduler {
 
 
     ActionDBAccessor db = mock(ActionDBAccessorImpl.class);
-    Stage s1 = StageUtils.getATestStage(requestId1, stageId, hostname, CLUSTER_HOST_INFO);
-    Stage s2 = StageUtils.getATestStage(requestId2, stageId, hostname, CLUSTER_HOST_INFO_UPDATED);
+    Stage s1 = StageUtils.getATestStage(requestId1, stageId, hostname, CLUSTER_HOST_INFO,
+      "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
+    Stage s2 = StageUtils.getATestStage(requestId2, stageId, hostname, CLUSTER_HOST_INFO_UPDATED,
+      "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
     when(db.getStagesInProgress()).thenReturn(Collections.singletonList(s1));
 
     //Keep large number of attempts so that the task is not expired finally
@@ -1499,7 +1508,7 @@ public class TestActionScheduler {
 
     final List<Stage> stages = new ArrayList<Stage>();
     Stage stage1 = new Stage(1, "/tmp", "cluster1", 1L, "stageWith2Tasks",
-            CLUSTER_HOST_INFO);
+            CLUSTER_HOST_INFO, "", "");
     addInstallTaskToStage(stage1, hostname1, "cluster1", Role.HBASE_MASTER,
             RoleCommand.INSTALL, Service.Type.HBASE, 1);
     addInstallTaskToStage(stage1, hostname1, "cluster1", Role.HBASE_REGIONSERVER,

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestStage.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestStage.java b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestStage.java
index ba6286f..bde19a1 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestStage.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestStage.java
@@ -34,7 +34,7 @@ public class TestStage {
 
   @Test
   public void testTaskTimeout() {
-    Stage s = StageUtils.getATestStage(1, 1, "h1", CLUSTER_HOST_INFO);
+    Stage s = StageUtils.getATestStage(1, 1, "h1", CLUSTER_HOST_INFO, "{\"host_param\":\"param_value\"}", "{\"stage_param\":\"param_value\"}");
     s.addHostRoleExecutionCommand("h1", Role.DATANODE, RoleCommand.INSTALL,
         null, "c1", "HDFS");
     s.addHostRoleExecutionCommand("h1", Role.HBASE_MASTER, RoleCommand.INSTALL,
@@ -50,7 +50,7 @@ public class TestStage {
   @Test
   public void testGetRequestContext() {
 
-    Stage stage = new Stage(1, "/logDir", "c1", 1L, "My Context", CLUSTER_HOST_INFO);
+    Stage stage = new Stage(1, "/logDir", "c1", 1L, "My Context", CLUSTER_HOST_INFO, "", "");
     assertEquals("My Context", stage.getRequestContext());
     assertEquals(CLUSTER_HOST_INFO, stage.getClusterHostInfo());
   }

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/agent/TestHeartbeatHandler.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/agent/TestHeartbeatHandler.java b/ambari-server/src/test/java/org/apache/ambari/server/agent/TestHeartbeatHandler.java
index 5c4a4f1..8c975d6 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/agent/TestHeartbeatHandler.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/agent/TestHeartbeatHandler.java
@@ -32,11 +32,16 @@ import static org.apache.ambari.server.agent.DummyHeartbeatConstants.HDFS;
 import static org.apache.ambari.server.agent.DummyHeartbeatConstants.HDFS_CLIENT;
 import static org.apache.ambari.server.agent.DummyHeartbeatConstants.NAMENODE;
 import static org.apache.ambari.server.agent.DummyHeartbeatConstants.SECONDARY_NAMENODE;
+import static org.easymock.EasyMock.anyObject;
+import static org.easymock.EasyMock.createMockBuilder;
+import static org.easymock.EasyMock.createNiceMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.reset;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-import static org.mockito.Matchers.anyList;
 import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
@@ -91,7 +96,6 @@ import org.apache.ambari.server.state.svccomphost.ServiceComponentHostStartEvent
 import org.apache.ambari.server.state.svccomphost.ServiceComponentHostUpgradeEvent;
 import org.apache.ambari.server.utils.StageUtils;
 import org.codehaus.jackson.JsonGenerationException;
-import static org.easymock.EasyMock.*;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -699,7 +703,8 @@ public class TestHeartbeatHandler {
   }
 
   private void populateActionDB(ActionDBAccessor db, String DummyHostname1) throws AmbariException {
-    Stage s = new Stage(requestId, "/a/b", DummyCluster, 1L, "heartbeat handler test", "clusterHostInfo");
+    Stage s = new Stage(requestId, "/a/b", DummyCluster, 1L, "heartbeat handler test",
+      "clusterHostInfo", "commandParamsStage", "hostParamsStage");
     s.setStageId(stageId);
     String filename = null;
     s.addHostRoleExecutionCommand(DummyHostname1, Role.HBASE_MASTER,
@@ -1084,7 +1089,7 @@ public class TestHeartbeatHandler {
     serviceComponentHost1.setState(State.INSTALLING);
 
     Stage s = new Stage(1, "/a/b", "cluster1", 1L, "action manager test",
-      "clusterHostInfo");
+      "clusterHostInfo", "commandParamsStage", "hostParamsStage");
     s.setStageId(1);
     s.addHostRoleExecutionCommand(DummyHostname1, Role.DATANODE, RoleCommand.INSTALL,
       new ServiceComponentHostInstallEvent(Role.DATANODE.toString(),
@@ -1657,7 +1662,7 @@ public class TestHeartbeatHandler {
     serviceComponentHost2.setStackVersion(stack122);
 
     Stage s = new Stage(requestId, "/a/b", "cluster1", 1L, "action manager test",
-      "clusterHostInfo");
+      "clusterHostInfo", "commandParamsStage", "hostParamsStage");
     s.setStageId(stageId);
     s.addHostRoleExecutionCommand(DummyHostname1, Role.DATANODE, RoleCommand.UPGRADE,
       new ServiceComponentHostUpgradeEvent(Role.DATANODE.toString(),

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/controller/AmbariManagementControllerTest.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/controller/AmbariManagementControllerTest.java b/ambari-server/src/test/java/org/apache/ambari/server/controller/AmbariManagementControllerTest.java
index 3aafb9a..ca76dc5 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/controller/AmbariManagementControllerTest.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/controller/AmbariManagementControllerTest.java
@@ -3130,12 +3130,15 @@ public class AmbariManagementControllerTest {
     Assert.assertNull(stage1.getExecutionCommandWrapper(host2, "DATANODE"));
     Assert.assertNotNull(stage3.getExecutionCommandWrapper(host1, "HBASE_SERVICE_CHECK"));
     Assert.assertNotNull(stage2.getExecutionCommandWrapper(host2, "HDFS_SERVICE_CHECK"));
+ 
+    Type type = new TypeToken<Map<String, String>>() {}.getType();
+
 
     for (Stage s : stages) {
       for (List<ExecutionCommandWrapper> list : s.getExecutionCommands().values()) {
         for (ExecutionCommandWrapper ecw : list) {
           if (ecw.getExecutionCommand().getRole().contains("SERVICE_CHECK")) {
-            Map<String, String> hostParams = ecw.getExecutionCommand().getHostLevelParams();
+            Map<String, String> hostParams = StageUtils.getGson().fromJson(s.getHostParamsStage(), type);
             Assert.assertNotNull(hostParams);
             Assert.assertTrue(hostParams.size() > 0);
             Assert.assertTrue(hostParams.containsKey("stack_version"));
@@ -3936,12 +3939,14 @@ public class AmbariManagementControllerTest {
     Assert.assertEquals("a1", task.getRole().name());
     Assert.assertEquals("h1", task.getHostName());
     ExecutionCommand cmd = task.getExecutionCommandWrapper().getExecutionCommand();
-    Map<String, String> commandParameters = cmd.getCommandParams();
+    Type type = new TypeToken<Map<String, String>>(){}.getType();
+    Map<String, String> hostParametersStage = StageUtils.getGson().fromJson(stage.getHostParamsStage(), type);
+    Map<String, String> commandParametersStage = StageUtils.getGson().fromJson(stage.getCommandParamsStage(), type);
 
-    Assert.assertTrue(commandParameters.containsKey("test"));
+    Assert.assertTrue(commandParametersStage.containsKey("test"));
     Assert.assertEquals("HDFS", cmd.getServiceName());
     Assert.assertEquals("DATANODE", cmd.getComponentName());
-    Assert.assertNotNull(commandParameters.get("jdk_location"));
+    Assert.assertNotNull(hostParametersStage.get("jdk_location"));
 
     resourceFilters.clear();
     resourceFilter = new RequestResourceFilter("", "", null);
@@ -3965,9 +3970,9 @@ public class AmbariManagementControllerTest {
     Assert.assertEquals(expectedHosts, actualHosts);
 
     cmd = task.getExecutionCommandWrapper().getExecutionCommand();
-    commandParameters = cmd.getCommandParams();
+    commandParametersStage = StageUtils.getGson().fromJson(stage.getCommandParamsStage(), type);
 
-    Assert.assertTrue(commandParameters.containsKey("test"));
+    Assert.assertTrue(commandParametersStage.containsKey("test"));
     Assert.assertEquals("HDFS", cmd.getServiceName());
     Assert.assertEquals("DATANODE", cmd.getComponentName());
 
@@ -4063,24 +4068,24 @@ public class AmbariManagementControllerTest {
     Assert.assertNotNull(stages);
 
     HostRoleCommand hrc = null;
+    Type type = new TypeToken<Map<String, String>>(){}.getType();
     for (Stage stage : stages) {
       for (HostRoleCommand cmd : stage.getOrderedHostRoleCommands()) {
         if (cmd.getRole().equals(Role.HDFS_CLIENT)) {
           hrc = cmd;
         }
+        Map<String, String> hostParamStage = StageUtils.getGson().fromJson(stage.getHostParamsStage(), type);
+        Assert.assertTrue(hostParamStage.containsKey(ExecutionCommand.KeyNames.DB_DRIVER_FILENAME));
+        Assert.assertTrue(hostParamStage.containsKey(ExecutionCommand.KeyNames.MYSQL_JDBC_URL));
+        Assert.assertTrue(hostParamStage.containsKey(ExecutionCommand.KeyNames.ORACLE_JDBC_URL));
       }
     }
     Assert.assertNotNull(hrc);
     Assert.assertEquals("RESTART HDFS/HDFS_CLIENT", hrc.getCommandDetail());
     Map<String, String> roleParams = hrc.getExecutionCommandWrapper()
       .getExecutionCommand().getRoleParams();
-    Map<String, String> hostParams = hrc.getExecutionCommandWrapper()
-        .getExecutionCommand().getHostLevelParams();
 
     Assert.assertNotNull(roleParams);
-    Assert.assertTrue(hostParams.containsKey(ExecutionCommand.KeyNames.DB_DRIVER_FILENAME));
-    Assert.assertTrue(hostParams.containsKey(ExecutionCommand.KeyNames.MYSQL_JDBC_URL));
-    Assert.assertTrue(hostParams.containsKey(ExecutionCommand.KeyNames.ORACLE_JDBC_URL));
     Assert.assertEquals("CLIENT", roleParams.get(ExecutionCommand.KeyNames.COMPONENT_CATEGORY));
     Assert.assertTrue(hrc.getExecutionCommandWrapper().getExecutionCommand().getCommandParams().containsKey("hdfs_client"));
     Assert.assertEquals("abc", hrc.getExecutionCommandWrapper().getExecutionCommand().getCommandParams().get("hdfs_client"));
@@ -6321,7 +6326,11 @@ public class AmbariManagementControllerTest {
     Assert.assertNotNull(nnCommand);
     ExecutionCommand cmd = nnCommand.getExecutionCommandWrapper().getExecutionCommand();
     Assert.assertEquals("a1", cmd.getRole());
-    Assert.assertTrue(cmd.getCommandParams().containsKey("test"));
+    Type type = new TypeToken<Map<String, String>>(){}.getType();
+    for (Stage stage : actionDB.getAllStages(response.getRequestId())){
+      Map<String, String> commandParamsStage = StageUtils.getGson().fromJson(stage.getCommandParamsStage(), type);
+      Assert.assertTrue(commandParamsStage.containsKey("test"));
+    }
   }
 
   @Test
@@ -6400,8 +6409,6 @@ public class AmbariManagementControllerTest {
     int expectedRestartCount = 0;
     for (HostRoleCommand hrc : storedTasks) {
       Assert.assertEquals("RESTART", hrc.getCustomCommandName());
-      Assert.assertNotNull(hrc.getExecutionCommandWrapper()
-          .getExecutionCommand().getCommandParams().get("jdk_location"));
 
       if (hrc.getHostName().equals("h1") && hrc.getRole().equals(Role.DATANODE)) {
         expectedRestartCount++;
@@ -6506,6 +6513,13 @@ public class AmbariManagementControllerTest {
         }
       }
     }
+ 
+    Type type = new TypeToken<Map<String, String>>(){}.getType();
+    for (Stage stage : actionDB.getAllStages(requestId)){
+      Map<String, String> hostParamsStage = StageUtils.getGson().fromJson(stage.getHostParamsStage(), type);
+      Assert.assertNotNull(hostParamsStage.get("jdk_location"));
+    }
+
     Assert.assertEquals(true, serviceCheckFound);
   }
 
@@ -6630,15 +6644,21 @@ public class AmbariManagementControllerTest {
         .getDesiredState());
 
     List<Stage> stages = actionDB.getAllStages(trackAction.getRequestId());
-    Map<String, String> params = stages.get(0).getOrderedHostRoleCommands().get
+    Type type = new TypeToken<Map<String, String>>(){}.getType();
+
+    for (Stage stage : stages){
+      Map<String, String> params = StageUtils.getGson().fromJson(stage.getHostParamsStage(), type);
+      Assert.assertEquals("0.1", params.get("stack_version"));
+      Assert.assertNotNull(params.get("jdk_location"));
+      Assert.assertNotNull(params.get("db_name"));
+      Assert.assertNotNull(params.get("mysql_jdbc_url"));
+      Assert.assertNotNull(params.get("oracle_jdbc_url"));
+    }
+
+    Map<String, String> paramsCmd = stages.get(0).getOrderedHostRoleCommands().get
       (0).getExecutionCommandWrapper().getExecutionCommand()
       .getHostLevelParams();
-    Assert.assertEquals("0.1", params.get("stack_version"));
-    Assert.assertNotNull(params.get("jdk_location"));
-    Assert.assertNotNull(params.get("repo_info"));
-    Assert.assertNotNull(params.get("db_name"));
-    Assert.assertNotNull(params.get("mysql_jdbc_url"));
-    Assert.assertNotNull(params.get("oracle_jdbc_url"));
+    Assert.assertNotNull(paramsCmd.get("repo_info"));
   }
 
   @Test
@@ -7874,7 +7894,8 @@ public class AmbariManagementControllerTest {
 
 
     List<Stage> stages = new ArrayList<Stage>();
-    stages.add(new Stage(requestId1, "/a1", clusterName, 1L, context, CLUSTER_HOST_INFO));
+    stages.add(new Stage(requestId1, "/a1", clusterName, 1L, context,
+      CLUSTER_HOST_INFO, "", ""));
     stages.get(0).setStageId(1);
     stages.get(0).addHostRoleExecutionCommand(hostName1, Role.HBASE_MASTER,
             RoleCommand.START,
@@ -7882,14 +7903,16 @@ public class AmbariManagementControllerTest {
                     hostName1, System.currentTimeMillis()),
             clusterName, "HBASE");
 
-    stages.add(new Stage(requestId1, "/a2", clusterName, 1L, context, CLUSTER_HOST_INFO));
+    stages.add(new Stage(requestId1, "/a2", clusterName, 1L, context,
+      CLUSTER_HOST_INFO, "", ""));
     stages.get(1).setStageId(2);
     stages.get(1).addHostRoleExecutionCommand(hostName1, Role.HBASE_CLIENT,
             RoleCommand.START,
             new ServiceComponentHostStartEvent(Role.HBASE_CLIENT.toString(),
                     hostName1, System.currentTimeMillis()), clusterName, "HBASE");
 
-    stages.add(new Stage(requestId1, "/a3", clusterName, 1L, context, CLUSTER_HOST_INFO));
+    stages.add(new Stage(requestId1, "/a3", clusterName, 1L, context,
+      CLUSTER_HOST_INFO, "", ""));
     stages.get(2).setStageId(3);
     stages.get(2).addHostRoleExecutionCommand(hostName1, Role.HBASE_CLIENT,
             RoleCommand.START,
@@ -7900,14 +7923,16 @@ public class AmbariManagementControllerTest {
     actionDB.persistActions(request);
 
     stages.clear();
-    stages.add(new Stage(requestId2, "/a4", clusterName, 1L, context, CLUSTER_HOST_INFO));
+    stages.add(new Stage(requestId2, "/a4", clusterName, 1L, context,
+      CLUSTER_HOST_INFO, "", ""));
     stages.get(0).setStageId(4);
     stages.get(0).addHostRoleExecutionCommand(hostName1, Role.HBASE_CLIENT,
             RoleCommand.START,
             new ServiceComponentHostStartEvent(Role.HBASE_CLIENT.toString(),
                     hostName1, System.currentTimeMillis()), clusterName, "HBASE");
 
-    stages.add(new Stage(requestId2, "/a5", clusterName, 1L, context, CLUSTER_HOST_INFO));
+    stages.add(new Stage(requestId2, "/a5", clusterName, 1L, context,
+      CLUSTER_HOST_INFO, "", ""));
     stages.get(1).setStageId(5);
     stages.get(1).addHostRoleExecutionCommand(hostName1, Role.HBASE_CLIENT,
             RoleCommand.START,
@@ -10142,7 +10167,9 @@ public class AmbariManagementControllerTest {
     Assert.assertEquals(hostname1, task.getHostName());
 
     ExecutionCommand cmd = task.getExecutionCommandWrapper().getExecutionCommand();
-    Assert.assertTrue(cmd.getCommandParams().containsKey("some_custom_param"));
+    Type type = new TypeToken<Map<String, String>>(){}.getType();
+    Map<String, String> commandParamsStage = StageUtils.getGson().fromJson(stage.getCommandParamsStage(), type);
+    Assert.assertTrue(commandParamsStage.containsKey("some_custom_param"));
     Assert.assertEquals(null, cmd.getServiceName());
     Assert.assertEquals(null, cmd.getComponentName());
 
@@ -10181,7 +10208,8 @@ public class AmbariManagementControllerTest {
     Assert.assertEquals(hostname1, task.getHostName());
 
     cmd = task.getExecutionCommandWrapper().getExecutionCommand();
-    Assert.assertTrue(cmd.getCommandParams().containsKey("some_custom_param"));
+    commandParamsStage = StageUtils.getGson().fromJson(stage.getCommandParamsStage(), type);
+    Assert.assertTrue(commandParamsStage.containsKey("some_custom_param"));
     Assert.assertEquals(null, cmd.getServiceName());
     Assert.assertEquals(null, cmd.getComponentName());
   }

http://git-wip-us.apache.org/repos/asf/ambari/blob/9faeaf5a/ambari-server/src/test/java/org/apache/ambari/server/stageplanner/TestStagePlanner.java
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/java/org/apache/ambari/server/stageplanner/TestStagePlanner.java b/ambari-server/src/test/java/org/apache/ambari/server/stageplanner/TestStagePlanner.java
index cf1e412..f008980 100644
--- a/ambari-server/src/test/java/org/apache/ambari/server/stageplanner/TestStagePlanner.java
+++ b/ambari-server/src/test/java/org/apache/ambari/server/stageplanner/TestStagePlanner.java
@@ -67,7 +67,7 @@ public class TestStagePlanner {
 
     RoleGraph rg = new RoleGraph(rco);
     String hostname = "dummy";
-    Stage stage = StageUtils.getATestStage(1, 1, hostname);
+    Stage stage = StageUtils.getATestStage(1, 1, hostname, "", "");
     rg.build(stage);
     List<Stage> outStages = rg.getStages();
     for (Stage s: outStages) {
@@ -86,7 +86,7 @@ public class TestStagePlanner {
     rco.initialize(cluster);
     RoleGraph rg = new RoleGraph(rco);
     long now = System.currentTimeMillis();
-    Stage stage = StageUtils.getATestStage(1, 1, "host1");
+    Stage stage = StageUtils.getATestStage(1, 1, "host1", "", "");
     stage.addHostRoleExecutionCommand("host2", Role.HBASE_MASTER,
         RoleCommand.START, new ServiceComponentHostStartEvent("HBASE_MASTER",
             "host2", now), "cluster1", "HBASE");
@@ -112,7 +112,7 @@ public class TestStagePlanner {
     rco.initialize(cluster);
     RoleGraph rg = new RoleGraph(rco);
     long now = System.currentTimeMillis();
-    Stage stage = StageUtils.getATestStage(1, 1, "host1");
+    Stage stage = StageUtils.getATestStage(1, 1, "host1", "", "");
     stage.addHostRoleExecutionCommand("host11", Role.SECONDARY_NAMENODE,
         RoleCommand.START, new ServiceComponentHostStartEvent("SECONDARY_NAMENODE",
             "host11", now), "cluster1", "HDFS");


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