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Posted to commits@hbase.apache.org by sy...@apache.org on 2017/07/18 13:58:39 UTC

hbase git commit: HBASE-16488 Starting namespace and quota services in master startup asynchronizely (Stephen Yuan Jiang)

Repository: hbase
Updated Branches:
  refs/heads/branch-1 5a28437a7 -> af359d03b


HBASE-16488 Starting namespace and quota services in master startup asynchronizely (Stephen Yuan Jiang)


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/af359d03
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/af359d03
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/af359d03

Branch: refs/heads/branch-1
Commit: af359d03b5e2cc798cee8ba52d2a9fcbb1022104
Parents: 5a28437
Author: Stephen Yuan Jiang <sy...@gmail.com>
Authored: Tue Jul 18 06:58:29 2017 -0700
Committer: Stephen Yuan Jiang <sy...@gmail.com>
Committed: Tue Jul 18 06:58:29 2017 -0700

----------------------------------------------------------------------
 .../org/apache/hadoop/hbase/master/HMaster.java | 103 ++++++++++++++++---
 .../hadoop/hbase/master/MasterRpcServices.java  |   4 +-
 .../hbase/master/TableNamespaceManager.java     |  17 ++-
 .../procedure/CreateNamespaceProcedure.java     |  19 ++--
 .../master/procedure/CreateTableProcedure.java  |   2 +-
 .../procedure/DeleteNamespaceProcedure.java     |   4 +-
 .../master/procedure/MasterProcedureEnv.java    |   4 +
 .../procedure/ModifyNamespaceProcedure.java     |   4 +-
 .../hbase/client/TestRollbackFromClient.java    |   2 +-
 .../hadoop/hbase/master/TestMasterFailover.java |   3 +
 .../hadoop/hbase/master/TestMasterMetrics.java  |   3 +
 .../hbase/master/TestMasterNoCluster.java       |   8 --
 .../master/handler/TestCreateTableHandler.java  |   2 +-
 .../procedure/TestCreateNamespaceProcedure.java |   4 +
 .../procedure/TestMasterProcedureEvents.java    |  69 ++++++++++++-
 .../procedure/TestModifyNamespaceProcedure.java |   4 +
 .../TestRSKilledWhenInitializing.java           |  27 ++++-
 .../hbase/regionserver/TestRegionOpen.java      |   4 +-
 .../wal/TestWALOpenAfterDNRollingStart.java     |   1 +
 19 files changed, 233 insertions(+), 51 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
index feda7fd..98a3dfb 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
@@ -156,6 +156,7 @@ import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.CompressionTest;
 import org.apache.hadoop.hbase.util.ConfigUtil;
 import org.apache.hadoop.hbase.util.EncryptionTest;
+import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
 import org.apache.hadoop.hbase.util.FSUtils;
 import org.apache.hadoop.hbase.util.HFileArchiveUtil;
 import org.apache.hadoop.hbase.util.HasThread;
@@ -309,6 +310,10 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
   // initialization may have not completed yet.
   volatile boolean serviceStarted = false;
 
+  // flag set after we complete asynchorized services and master initialization is done,
+  private final ProcedureEvent namespaceManagerInitialized =
+      new ProcedureEvent("master namespace manager initialized");
+
   // flag set after we complete assignMeta.
   private final ProcedureEvent serverCrashProcessingEnabled =
     new ProcedureEvent("server crash processing");
@@ -874,8 +879,8 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     periodicDoMetricsChore = new PeriodicDoMetrics(msgInterval, this);
     getChoreService().scheduleChore(periodicDoMetricsChore);
 
-    status.setStatus("Starting namespace manager");
-    initNamespace();
+    status.setStatus("Starting namespace manager and quota manager");
+    initNamespaceAndQuotaManager();
 
     if (this.cpHost != null) {
       try {
@@ -892,11 +897,6 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     // Set master as 'initialized'.
     setInitialized(true);
 
-    assignmentManager.checkIfShouldMoveSystemRegionAsync();
-
-    status.setStatus("Starting quota manager");
-    initQuotaManager();
-
     // assign the meta replicas
     Set<ServerName> EMPTY_SET = new HashSet<ServerName>();
     int numReplicas = conf.getInt(HConstants.META_REPLICAS_NUM,
@@ -928,12 +928,6 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     zombieDetector.interrupt();
   }
 
-  private void initQuotaManager() throws IOException {
-    quotaManager = new MasterQuotaManager(this);
-    this.assignmentManager.setRegionStateListener((RegionStateListener) quotaManager);
-    quotaManager.start();
-  }
-
   /**
    * Create a {@link ServerManager} instance.
    * @param master
@@ -1080,10 +1074,60 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     }
   }
 
-  void initNamespace() throws IOException {
+  /*
+   * The main purpose is to start namespace manager and quota manager async to
+   * unblock overall master initialization
+   *
+   * @throws IOException
+   */
+  private void initNamespaceAndQuotaManager() throws IOException {
     //create namespace manager
     tableNamespaceManager = new TableNamespaceManager(this);
-    tableNamespaceManager.start();
+
+    //create quota manager
+    this.quotaManager = new MasterQuotaManager(this);
+    this.assignmentManager.setRegionStateListener((RegionStateListener)quotaManager);
+
+    if (conf.getBoolean("hbase.master.start.wait.for.namespacemanager", false)) {
+      // If being asked not to async start namespace manager, then just block
+      // master service starting until namespace manager is ready.
+      //
+      // Note: Quota manager depends on namespace manager.  Therefore, its starting
+      // method has to be in-sync with namespace manager.
+      LOG.info("Starting namespace manager and quota manager synchronously");
+
+      tableNamespaceManager.start();
+      setNamespaceManagerInitializedEvent(true);
+      LOG.info("Namespace manager started successfully.");
+
+      quotaManager.start();
+      LOG.info("Quota manager started successfully.");
+    } else { // else asynchronously start namespace manager and quota manager
+      LOG.info("Starting namespace manager and quota manager asynchronously");
+      Threads.setDaemonThreadRunning(new Thread(new Runnable() {
+        @Override
+        public void run() {
+          // Start namespace manager and wait to it to be fully started.
+          try {
+            tableNamespaceManager.start();
+            setNamespaceManagerInitializedEvent(true);
+            LOG.info("Namespace manager started successfully.");
+          } catch (IOException e) {
+            LOG.error("Namespace manager failed to start. ", e);
+            abort("Shutdown Master due to namespace manager failed to start. ", e);
+          }
+          // Quota Manager depends on Namespace manager to be fully initialized.
+          try {
+            quotaManager.start();
+            LOG.info("Quota manager started successfully.");
+          } catch (IOException ie) {
+            LOG.error("Quota Manager failed to start. ", ie);
+            abort("Shutdown Master due to Quota Manager failure to start. ", ie);
+          }
+        }
+      }, "Init Namespace Manager and Quota Manager Async"));
+    }
+    assignmentManager.checkIfShouldMoveSystemRegionAsync();
   }
 
   boolean isCatalogJanitorEnabled() {
@@ -2615,11 +2659,26 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
 
   void checkNamespaceManagerReady() throws IOException {
     checkInitialized();
-    if (tableNamespaceManager == null ||
-        !tableNamespaceManager.isTableAvailableAndInitialized(true)) {
+    if (tableNamespaceManager == null) {
       throw new IOException("Table Namespace Manager not ready yet, try again later");
+    } else if (!tableNamespaceManager.isTableAvailableAndInitialized(true)) {
+      try {
+        // Wait some time.
+        long startTime = EnvironmentEdgeManager.currentTime();
+        int timeout = conf.getInt("hbase.master.namespace.wait.for.ready", 30000);
+        while (!tableNamespaceManager.isTableNamespaceManagerStarted() &&
+            EnvironmentEdgeManager.currentTime() - startTime < timeout) {
+          Thread.sleep(100);
+        }
+      } catch (InterruptedException e) {
+        throw (InterruptedIOException) new InterruptedIOException().initCause(e);
+      }
+      if (!tableNamespaceManager.isTableNamespaceManagerStarted()) {
+        throw new IOException("Table Namespace Manager not fully initialized, try again later");
+      }
     }
   }
+
   /**
    * Report whether this master is currently the active master or not.
    * If not active master, we are parked on ZK waiting to become active.
@@ -2665,6 +2724,16 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     return initialized;
   }
 
+  public void setNamespaceManagerInitializedEvent(boolean isNamespaceManagerInitialized) {
+    procedureExecutor.getEnvironment().setEventReady(
+      namespaceManagerInitialized,
+      isNamespaceManagerInitialized);
+  }
+
+  public ProcedureEvent getNamespaceManagerInitializedEvent() {
+    return namespaceManagerInitialized;
+  }
+
   /**
    * ServerCrashProcessingEnabled is set false before completing assignMeta to prevent processing
    * of crashed servers.

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java
index 0155e8a..c216995 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java
@@ -1303,7 +1303,7 @@ public class MasterRpcServices extends RSRpcServices
   public RestoreSnapshotResponse restoreSnapshot(RpcController controller,
       RestoreSnapshotRequest request) throws ServiceException {
     try {
-      master.checkInitialized();
+      master.checkNamespaceManagerReady();
       master.snapshotManager.checkSnapshotSupport();
 
       // ensure namespace exists
@@ -1606,7 +1606,7 @@ public class MasterRpcServices extends RSRpcServices
   @Override
   public SetQuotaResponse setQuota(RpcController c, SetQuotaRequest req) throws ServiceException {
     try {
-      master.checkInitialized();
+      master.checkNamespaceManagerReady();
       return master.getMasterQuotaManager().setQuota(req);
     } catch (Exception e) {
       throw new ServiceException(e);

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableNamespaceManager.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableNamespaceManager.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableNamespaceManager.java
index 6bcfb77..224cda0 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableNamespaceManager.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableNamespaceManager.java
@@ -48,6 +48,7 @@ import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
 
+import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.Sets;
 
 /**
@@ -72,7 +73,8 @@ public class TableNamespaceManager {
   public static final String KEY_MAX_REGIONS = "hbase.namespace.quota.maxregions";
   public static final String KEY_MAX_TABLES = "hbase.namespace.quota.maxtables";
   static final String NS_INIT_TIMEOUT = "hbase.master.namespace.init.timeout";
-  static final int DEFAULT_NS_INIT_TIMEOUT = 300000;
+  static final int DEFAULT_NS_INIT_TIMEOUT = 1800000; // default is 30 minutes
+  private static final int WAIT_MESSAGE_TO_PRINTOUT = 300000; // print out message every 5 minutes
 
   public TableNamespaceManager(MasterServices masterServices) {
     this.masterServices = masterServices;
@@ -91,12 +93,18 @@ public class TableNamespaceManager {
       // If timed out, we will move ahead without initializing it.
       // So that it should be initialized later on lazily.
       long startTime = EnvironmentEdgeManager.currentTime();
+      long msgCount = 0;
+      long waitTime;
       int timeout = conf.getInt(NS_INIT_TIMEOUT, DEFAULT_NS_INIT_TIMEOUT);
       while (!isTableAvailableAndInitialized(false)) {
-        if (EnvironmentEdgeManager.currentTime() - startTime + 100 > timeout) {
+        waitTime = EnvironmentEdgeManager.currentTime() - startTime;
+        if (waitTime > timeout) {
           // We can't do anything if ns is not online.
           throw new IOException("Timedout " + timeout + "ms waiting for namespace table to " +
             "be assigned");
+        } else if (waitTime > msgCount * WAIT_MESSAGE_TO_PRINTOUT) {
+          LOG.info("Waiting for namespace table to be online. Time waited = " + waitTime + " ms.");
+          msgCount++;
         }
         Thread.sleep(100);
       }
@@ -105,6 +113,11 @@ public class TableNamespaceManager {
     }
   }
 
+  @VisibleForTesting
+  public boolean isTableNamespaceManagerStarted() {
+    return initialized;
+  }
+
   private synchronized Table getNamespaceTable() throws IOException {
     if (!isTableNamespaceManagerInitialized()) {
       throw new IOException(this.getClass().getName() + " isn't ready to serve");

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateNamespaceProcedure.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateNamespaceProcedure.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateNamespaceProcedure.java
index e873156..d19635c 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateNamespaceProcedure.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateNamespaceProcedure.java
@@ -193,21 +193,20 @@ public class CreateNamespaceProcedure
     sb.append(")");
   }
 
-  private boolean isBootstrapNamespace() {
+  private static boolean isBootstrapNamespace(final NamespaceDescriptor nsDescriptor) {
     return nsDescriptor.equals(NamespaceDescriptor.DEFAULT_NAMESPACE) ||
         nsDescriptor.equals(NamespaceDescriptor.SYSTEM_NAMESPACE);
   }
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    if (!env.getMasterServices().isInitialized()) {
-      // Namespace manager might not be ready if master is not fully initialized,
-      // return false to reject user namespace creation; return true for default
-      // and system namespace creation (this is part of master initialization).
-      if (!isBootstrapNamespace() && env.waitInitialized(this)) {
-        return false;
-      }
+    // Namespace manager might not be ready if master is not fully initialized,
+    // return false to reject user namespace creation; return true for default
+    // and system namespace creation (this is part of master initialization).
+    if (!isBootstrapNamespace(nsDescriptor) && env.waitNamespaceManagerInitialized(this)) {
+      return false;
     }
+
     return env.getProcedureQueue().tryAcquireNamespaceExclusiveLock(this, getNamespaceName());
   }
 
@@ -331,7 +330,7 @@ public class CreateNamespaceProcedure
   protected static void setNamespaceQuota(
       final MasterProcedureEnv env,
       final NamespaceDescriptor nsDescriptor) throws IOException {
-    if (env.getMasterServices().isInitialized()) {
+    if (env.getMasterServices().isInitialized() && !isBootstrapNamespace(nsDescriptor)) {
       env.getMasterServices().getMasterQuotaManager().setNamespaceQuota(nsDescriptor);
     }
   }
@@ -370,6 +369,6 @@ public class CreateNamespaceProcedure
   protected boolean shouldWaitClientAck(MasterProcedureEnv env) {
     // hbase and default namespaces are created on bootstrap internally by the system
     // the client does not know about this procedures.
-    return !isBootstrapNamespace();
+    return !isBootstrapNamespace(nsDescriptor);
   }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateTableProcedure.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateTableProcedure.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateTableProcedure.java
index 74433b4..905f5b1 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateTableProcedure.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/CreateTableProcedure.java
@@ -269,7 +269,7 @@ public class CreateTableProcedure
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    if (!getTableName().isSystemTable() && env.waitInitialized(this)) {
+    if (!getTableName().isSystemTable() && env.waitNamespaceManagerInitialized(this)) {
       return false;
     }
     return env.getProcedureQueue().tryAcquireTableExclusiveLock(this, getTableName());

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/DeleteNamespaceProcedure.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/DeleteNamespaceProcedure.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/DeleteNamespaceProcedure.java
index a7ebc30..e011f29 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/DeleteNamespaceProcedure.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/DeleteNamespaceProcedure.java
@@ -210,7 +210,9 @@ public class DeleteNamespaceProcedure
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    if (env.waitInitialized(this)) return false;
+    if (env.waitNamespaceManagerInitialized(this)) {
+      return false;
+    }
     return env.getProcedureQueue().tryAcquireNamespaceExclusiveLock(this, getNamespaceName());
   }
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.java
index 3911f54..75822c8 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.java
@@ -132,6 +132,10 @@ public class MasterProcedureEnv {
     return procSched.waitEvent(((HMaster)master).getInitializedEvent(), proc);
   }
 
+  public boolean waitNamespaceManagerInitialized(Procedure proc) {
+    return procSched.waitEvent(((HMaster)master).getNamespaceManagerInitializedEvent(), proc);
+  }
+
   public boolean waitServerCrashProcessingEnabled(Procedure proc) {
     return procSched.waitEvent(((HMaster)master).getServerCrashProcessingEnabledEvent(), proc);
   }

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ModifyNamespaceProcedure.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ModifyNamespaceProcedure.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ModifyNamespaceProcedure.java
index 5d9548b..5953032 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ModifyNamespaceProcedure.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ModifyNamespaceProcedure.java
@@ -191,7 +191,9 @@ public class ModifyNamespaceProcedure
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    if (env.waitInitialized(this)) return false;
+    if (env.waitNamespaceManagerInitialized(this)) {
+      return false;
+    }
     return env.getProcedureQueue().tryAcquireNamespaceExclusiveLock(this, getNamespaceName());
   }
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestRollbackFromClient.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestRollbackFromClient.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestRollbackFromClient.java
index 9230f31..01717ff 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestRollbackFromClient.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestRollbackFromClient.java
@@ -222,7 +222,7 @@ public class TestRollbackFromClient {
     HColumnDescriptor col = new HColumnDescriptor(FAMILY);
     col.setMaxVersions(versions);
     desc.addFamily(col);
-    TEST_UTIL.getHBaseAdmin().createTable(desc);
+    TEST_UTIL.createTable(tableName, FAMILY, versions);
     int expected;
     List<Cell> cells;
     try (Connection conn = ConnectionFactory.createConnection(TEST_UTIL.getConfiguration());

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
index 292ec72..eb0af08 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
@@ -508,6 +508,9 @@ public class TestMasterFailover {
     HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
     Configuration conf = TEST_UTIL.getConfiguration();
     conf.setBoolean("hbase.assignment.usezk", true);
+    // The test depends on namespace region is online, therefore, we have to
+    // wait for namespace manager starting.
+    conf.setBoolean("hbase.master.start.wait.for.namespacemanager", true);
 
     conf.setInt(ServerManager.WAIT_ON_REGIONSERVERS_MINTOSTART, 1);
     conf.setInt(ServerManager.WAIT_ON_REGIONSERVERS_MAXTOSTART, 2);

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
index f6f9b49..c273afa 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
@@ -66,6 +66,9 @@ public class TestMasterMetrics {
   public static void startCluster() throws Exception {
     LOG.info("Starting cluster");
     TEST_UTIL = new HBaseTestingUtility();
+    // The metrics depends on namespace region is online, therefore, we have to
+    // wait for namespace manager starting.
+    TEST_UTIL.getConfiguration().setBoolean("hbase.master.start.wait.for.namespacemanager", true);
     TEST_UTIL.startMiniCluster(1, 1, 1, null, MyMaster.class, null);
     cluster = TEST_UTIL.getHBaseCluster();
     LOG.info("Waiting for active/ready master");

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNoCluster.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNoCluster.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNoCluster.java
index 4483fce..3b1daf2 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNoCluster.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNoCluster.java
@@ -215,10 +215,6 @@ public class TestMasterNoCluster {
       public ClusterConnection getConnection() {
         return mockedConnection;
       }
-
-      @Override
-      void initNamespace() {
-      }
     };
     master.start();
 
@@ -296,10 +292,6 @@ public class TestMasterNoCluster {
           return null;
         }
       }
-
-      @Override
-      void initNamespace() {
-      }
     };
     master.start();
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/master/handler/TestCreateTableHandler.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/handler/TestCreateTableHandler.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/handler/TestCreateTableHandler.java
index f25e45c..eed85c1 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/handler/TestCreateTableHandler.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/handler/TestCreateTableHandler.java
@@ -54,10 +54,10 @@ public class TestCreateTableHandler {
   private static final Log LOG = LogFactory.getLog(TestCreateTableHandler.class);
   private static final byte[] FAMILYNAME = Bytes.toBytes("fam");
   private static boolean throwException = false;
-  
 
   @Before
   public void setUp() throws Exception {
+    TEST_UTIL.getConfiguration().setBoolean("hbase.master.start.wait.for.namespacemanager", true);
     TEST_UTIL.startMiniCluster(1);
   }
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestCreateNamespaceProcedure.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestCreateNamespaceProcedure.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestCreateNamespaceProcedure.java
index e7ddff6..c59b27d 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestCreateNamespaceProcedure.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestCreateNamespaceProcedure.java
@@ -52,6 +52,10 @@ public class TestCreateNamespaceProcedure {
 
   private static void setupConf(Configuration conf) {
     conf.setInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, 1);
+    // We have to disable the async namespace manager startup due to the recovery and rollback
+    // tests would halt the execution of procedure.  If at that time the namespace table is
+    // not created, it would be forced to stop/wait and cause the test to fail.
+    conf.setBoolean("hbase.master.start.wait.for.namespacemanager", true);
   }
 
   @BeforeClass

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestMasterProcedureEvents.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestMasterProcedureEvents.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestMasterProcedureEvents.java
index b7a6434..39b7926 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestMasterProcedureEvents.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestMasterProcedureEvents.java
@@ -35,6 +35,7 @@ import org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore;
 import org.apache.hadoop.hbase.regionserver.HRegionServer;
 import org.apache.hadoop.hbase.testclassification.MasterTests;
 import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -43,6 +44,8 @@ import org.junit.experimental.categories.Category;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
+import java.io.IOException;
+
 @Category({MasterTests.class, MediumTests.class})
 public class TestMasterProcedureEvents {
   private static final Log LOG = LogFactory.getLog(TestCreateTableProcedure.class);
@@ -76,14 +79,76 @@ public class TestMasterProcedureEvents {
     ProcedureExecutor<MasterProcedureEnv> procExec = master.getMasterProcedureExecutor();
     MasterProcedureScheduler procSched = procExec.getEnvironment().getProcedureQueue();
 
-    HRegionInfo hri = new HRegionInfo(tableName);
     HTableDescriptor htd = new HTableDescriptor(tableName);
     HColumnDescriptor hcd = new HColumnDescriptor("f");
     htd.addFamily(hcd);
 
     while (!master.isInitialized()) Thread.sleep(250);
+    UTIL.createTable(htd, null);
+
+    // Modify the table descriptor
+    HTableDescriptor newHTD =
+        new HTableDescriptor(UTIL.getHBaseAdmin().getTableDescriptor(tableName));
+    long newMaxFileSize = newHTD.getMaxFileSize() * 2;
+    newHTD.setMaxFileSize(newMaxFileSize);
+    newHTD.setRegionReplication(3);
+
     master.setInitialized(false); // fake it, set back later
 
+    ModifyTableProcedure proc = new ModifyTableProcedure(procExec.getEnvironment(), newHTD);
+
+    long pollCalls = procSched.getPollCalls();
+    long nullPollCalls = procSched.getNullPollCalls();
+
+    long procId = procExec.submitProcedure(proc);
+    for (int i = 0; i < 10; ++i) {
+      Thread.sleep(100);
+      assertEquals(pollCalls + 1, procSched.getPollCalls());
+      assertEquals(nullPollCalls, procSched.getNullPollCalls());
+    }
+
+    master.setInitialized(true);
+    ProcedureTestingUtility.waitProcedure(procExec, procId);
+
+    assertEquals(pollCalls + 2, procSched.getPollCalls());
+    assertEquals(nullPollCalls, procSched.getNullPollCalls());
+  }
+
+  @Test
+  public void testNamespaceManagerInitializedEvent() throws Exception {
+    TableName tableName = TableName.valueOf("testNamespaceManagerInitializedEvent");
+    HMaster master = UTIL.getMiniHBaseCluster().getMaster();
+    ProcedureExecutor<MasterProcedureEnv> procExec = master.getMasterProcedureExecutor();
+    MasterProcedureScheduler procSched = procExec.getEnvironment().getProcedureQueue();
+
+    HRegionInfo hri = new HRegionInfo(tableName);
+    HTableDescriptor htd = new HTableDescriptor(tableName);
+    HColumnDescriptor hcd = new HColumnDescriptor("f");
+    htd.addFamily(hcd);
+
+    while (!master.isInitialized()) Thread.sleep(250);
+
+    final int maxwait = 60000;
+    final long startTime = EnvironmentEdgeManager.currentTime();
+    do {
+      if(master.getTableNamespaceManager().isTableNamespaceManagerStarted()) {
+        break;
+      }
+      try {
+        Thread.sleep(100);
+      } catch (InterruptedException e) {
+        throw new IOException("Interrupt while waiting for master namespace manager starting.");
+      }
+    } while (EnvironmentEdgeManager.currentTime() - startTime < maxwait);
+
+    if(!master.getTableNamespaceManager().isTableNamespaceManagerStarted()) {
+      throw new IOException(
+        "Cannot continue testing due to master namespace manager not started after waiting " +
+        (EnvironmentEdgeManager.currentTime() - startTime) + " milliseconds");
+    }
+
+    master.setNamespaceManagerInitializedEvent(false); // fake it, set back later
+
     CreateTableProcedure proc = new CreateTableProcedure(
       procExec.getEnvironment(), htd, new HRegionInfo[] { hri });
 
@@ -97,7 +162,7 @@ public class TestMasterProcedureEvents {
       assertEquals(nullPollCalls, procSched.getNullPollCalls());
     }
 
-    master.setInitialized(true);
+    master.setNamespaceManagerInitializedEvent(true);
     ProcedureTestingUtility.waitProcedure(procExec, procId);
 
     assertEquals(pollCalls + 2, procSched.getPollCalls());

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestModifyNamespaceProcedure.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestModifyNamespaceProcedure.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestModifyNamespaceProcedure.java
index 327afc4..394b114 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestModifyNamespaceProcedure.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestModifyNamespaceProcedure.java
@@ -48,6 +48,10 @@ public class TestModifyNamespaceProcedure {
 
   private static void setupConf(Configuration conf) {
     conf.setInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, 1);
+    // We have to disable the async namespace manager startup due to the recovery and rollback
+    // tests would halt the execution of procedure.  If at that time the namespace table is
+    // not created, it would be forced to stop/wait and cause the test to fail.
+    conf.setBoolean("hbase.master.start.wait.for.namespacemanager", true);
   }
 
   @BeforeClass

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRSKilledWhenInitializing.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRSKilledWhenInitializing.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRSKilledWhenInitializing.java
index 8dd2457..6b83368 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRSKilledWhenInitializing.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRSKilledWhenInitializing.java
@@ -18,12 +18,10 @@
  */
 package org.apache.hadoop.hbase.regionserver;
 
-import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 import java.io.IOException;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicReference;
 
@@ -34,7 +32,6 @@ import org.apache.hadoop.hbase.CategoryBasedTimeout;
 import org.apache.hadoop.hbase.CoordinatedStateManager;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
-import org.apache.hadoop.hbase.HRegionInfo;
 import org.apache.hadoop.hbase.LocalHBaseCluster;
 import org.apache.hadoop.hbase.MiniHBaseCluster;
 import org.apache.hadoop.hbase.ServerName;
@@ -44,7 +41,6 @@ import org.apache.hadoop.hbase.master.ServerManager;
 import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionServerStartupResponse;
 import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
-import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.JVMClusterUtil.MasterThread;
 import org.apache.hadoop.hbase.util.Threads;
 import org.junit.Rule;
@@ -84,6 +80,7 @@ public class TestRSKilledWhenInitializing {
     // Create config to use for this cluster
     Configuration conf = HBaseConfiguration.create();
     conf.setInt(ServerManager.WAIT_ON_REGIONSERVERS_MINTOSTART, 1);
+    conf.setBoolean("hbase.master.start.wait.for.namespacemanager", false);
     // Start the cluster
     final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(conf);
     TEST_UTIL.startMiniDFSCluster(3);
@@ -100,24 +97,46 @@ public class TestRSKilledWhenInitializing {
       }
       // Now wait on master to see NUM_RS + 1 servers as being online, thats NUM_RS plus
       // the Master itself (because Master hosts hbase:meta and checks in as though it a RS).
+      ServerManager serverManager = master.getMaster().getServerManager();
       List<ServerName> onlineServersList = null;
       do {
         onlineServersList = master.getMaster().getServerManager().getOnlineServersList();
       } while (onlineServersList.size() < NUM_RS);
+
+      LOG.info("!!!Print online Server list: " + onlineServersList);
       // Wait until killedRS is set. Means RegionServer is starting to go down.
       while (killedRS.get() == null) {
         Threads.sleep(1);
       }
+      LOG.info("!!!Print dead server: " + killedRS);
+      LOG.info("!!!Print online Server list: " + serverManager.getOnlineServersList());
       // Wait on the RegionServer to fully die.
       while (cluster.getLiveRegionServers().size() >= NUM_RS) {
         Threads.sleep(1);
       }
+
+      LOG.info("!!!Print live server size: " + cluster.getLiveRegionServers().size());
+      LOG.info("!!!Print online Server list after kill: " + serverManager.getOnlineServersList());
+      LOG.info("!!!Print is server " + killedRS.get() + " online: " + serverManager.isServerOnline(killedRS.get()));
+
       // Make sure Master is fully up before progressing. Could take a while if regions
       // being reassigned.
       while (!master.getMaster().isInitialized()) {
         Threads.sleep(1);
       }
 
+      int i=0;
+      while (i < 100000) {
+        if (!serverManager.isServerOnline(killedRS.get())) {
+          break;
+        }
+        Threads.sleep(100);
+        i +=100;
+      }
+      LOG.info("!!!Print online Server list after kill: " + serverManager.getOnlineServersList());
+      LOG.info("!!!Print wait: " + i + " ms.");
+      LOG.info("!!!Print is server " + killedRS.get() + " online: " + serverManager.isServerOnline(killedRS.get()));
+
       // Now in steady state. Make sure the killed RS is no longer registered.
       // branch-1 works differently to master branch.
       assertTrue(!master.getMaster().getServerManager().isServerOnline(killedRS.get()));

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
index aac872d..7889504 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
@@ -51,6 +51,9 @@ public class TestRegionOpen {
 
   @BeforeClass
   public static void before() throws Exception {
+    // This test depends on namespace region open; therefore, we have to wait for namespace
+    // manager start before continue.
+    HTU.getConfiguration().setBoolean("hbase.master.start.wait.for.namespacemanager", true);
     HTU.startMiniCluster(NB_SERVERS);
   }
 
@@ -67,7 +70,6 @@ public class TestRegionOpen {
   public void testPriorityRegionIsOpenedWithSeparateThreadPool() throws Exception {
     ThreadPoolExecutor exec = getRS().getExecutorService()
         .getExecutorThreadPool(ExecutorType.RS_OPEN_PRIORITY_REGION);
-
     assertEquals(1, exec.getCompletedTaskCount()); // namespace region
 
     HTableDescriptor htd = new HTableDescriptor(tableName);

http://git-wip-us.apache.org/repos/asf/hbase/blob/af359d03/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALOpenAfterDNRollingStart.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALOpenAfterDNRollingStart.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALOpenAfterDNRollingStart.java
index ee1692e..4eb949f 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALOpenAfterDNRollingStart.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALOpenAfterDNRollingStart.java
@@ -48,6 +48,7 @@ public class TestWALOpenAfterDNRollingStart {
         false);
     TEST_UTIL.getConfiguration().setLong("hbase.regionserver.hlog.check.lowreplication.interval",
         checkLowReplicationInterval);
+    TEST_UTIL.getConfiguration().setBoolean("hbase.master.start.wait.for.namespacemanager", true);
     TEST_UTIL.startMiniDFSCluster(3);
     TEST_UTIL.startMiniCluster(1);