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Posted to commits@hbase.apache.org by ap...@apache.org on 2019/06/04 01:24:18 UTC

[hbase] 02/02: Revert "HBASE-16488 Starting namespace and quota services in master startup asynchronously"

This is an automated email from the ASF dual-hosted git repository.

apurtell pushed a commit to branch branch-1
in repository https://gitbox.apache.org/repos/asf/hbase.git

commit 5c4708ea73b2f8bca05b390d49a93acaf88ed60f
Author: Andrew Purtell <ap...@apache.org>
AuthorDate: Mon Jun 3 18:05:59 2019 -0700

    Revert "HBASE-16488 Starting namespace and quota services in master startup asynchronously"
    
    This reverts commit e4644c35c1e0de420a548bc0dfbe4d8049aca915.
---
 .../org/apache/hadoop/hbase/master/HMaster.java    | 105 ++++-----------------
 .../hadoop/hbase/master/MasterRpcServices.java     |   4 +-
 .../hadoop/hbase/master/TableNamespaceManager.java |  21 +----
 .../master/procedure/CreateNamespaceProcedure.java |  19 ++--
 .../master/procedure/CreateTableProcedure.java     |   2 +-
 .../master/procedure/DeleteNamespaceProcedure.java |   4 +-
 .../hbase/master/procedure/MasterProcedureEnv.java |   4 -
 .../master/procedure/ModifyNamespaceProcedure.java |   4 +-
 .../apache/hadoop/hbase/HBaseTestingUtility.java   |  34 -------
 .../hbase/client/TestRollbackFromClient.java       |   2 +-
 .../hbase/master/TestAssignmentListener.java       |  22 +----
 .../hadoop/hbase/master/TestMasterFailover.java    |   3 -
 .../hadoop/hbase/master/TestMasterMetrics.java     |   3 -
 .../hadoop/hbase/master/TestMasterNoCluster.java   |   8 ++
 .../master/handler/TestCreateTableHandler.java     |   2 +-
 .../procedure/TestCreateNamespaceProcedure.java    |   4 -
 .../procedure/TestMasterProcedureEvents.java       |  71 +-------------
 .../procedure/TestModifyNamespaceProcedure.java    |   4 -
 .../hadoop/hbase/regionserver/TestRegionOpen.java  |   7 --
 .../hbase/wal/TestWALOpenAfterDNRollingStart.java  |   1 -
 20 files changed, 51 insertions(+), 273 deletions(-)

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 503cc6b..ab0865d 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
@@ -160,7 +160,6 @@ import org.apache.hadoop.hbase.util.CommonFSUtils;
 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.HFileArchiveUtil;
 import org.apache.hadoop.hbase.util.HasThread;
 import org.apache.hadoop.hbase.util.ModifyRegionUtils;
@@ -314,10 +313,6 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
   // initialization may have not completed yet.
   volatile boolean serviceStarted = false;
 
-  // flag set after we complete asynchronized 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");
@@ -885,9 +880,8 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     periodicDoMetricsChore = new PeriodicDoMetrics(msgInterval, this);
     getChoreService().scheduleChore(periodicDoMetricsChore);
 
-
-    status.setStatus("Starting namespace manager and quota manager");
-    initNamespaceAndQuotaManager();
+    status.setStatus("Starting namespace manager");
+    initNamespace();
 
     if (this.cpHost != null) {
       try {
@@ -908,6 +902,11 @@ 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,
@@ -950,6 +949,12 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     }
   }
 
+  private void initQuotaManager() throws IOException {
+    quotaManager = new MasterQuotaManager(this);
+    this.assignmentManager.setRegionStateListener((RegionStateListener) quotaManager);
+    quotaManager.start();
+  }
+
   /**
    * Create a {@link ServerManager} instance.
    * @param master
@@ -1096,61 +1101,12 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
     }
   }
 
-  /*
-   * The main purpose is to start namespace manager and quota manager async to
-   * unblock overall master initialization
-   *
-   * @throws IOException
-  */
-  private void initNamespaceAndQuotaManager() throws IOException {
+  void initNamespace() throws IOException {
     //create namespace manager
     tableNamespaceManager = new TableNamespaceManager(this);
-    //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);
-
-      quotaManager.start();
-    } 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.");
-            } 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.");
-            } 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();
+    tableNamespaceManager.start();
   }
 
-
-
   boolean isCatalogJanitorEnabled() {
     return catalogJanitorChore != null ?
       catalogJanitorChore.getEnabled() : false;
@@ -2709,28 +2665,11 @@ public class HMaster extends HRegionServer implements MasterServices, Server {
 
   void checkNamespaceManagerReady() throws IOException {
     checkInitialized();
-
-    if (tableNamespaceManager == null) {
+    if (tableNamespaceManager == null ||
+        !tableNamespaceManager.isTableAvailableAndInitialized(true)) {
       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.
@@ -2779,16 +2718,6 @@ 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.
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 122d629..02cd80c 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
@@ -1338,7 +1338,7 @@ public class MasterRpcServices extends RSRpcServices
   public RestoreSnapshotResponse restoreSnapshot(RpcController controller,
       RestoreSnapshotRequest request) throws ServiceException {
     try {
-      master.checkNamespaceManagerReady();
+      master.checkInitialized();
       master.snapshotManager.checkSnapshotSupport();
 
       // ensure namespace exists
@@ -1646,7 +1646,7 @@ public class MasterRpcServices extends RSRpcServices
   @Override
   public SetQuotaResponse setQuota(RpcController c, SetQuotaRequest req) throws ServiceException {
     try {
-      master.checkNamespaceManagerReady();
+      master.checkInitialized();
       return master.getMasterQuotaManager().setQuota(req);
     } catch (Exception e) {
       throw new ServiceException(e);
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 1a58aa9..5929f26 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
@@ -18,9 +18,6 @@
 
 package org.apache.hadoop.hbase.master;
 
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.collect.Sets;
-
 import java.io.IOException;
 import java.io.InterruptedIOException;
 import java.util.NavigableSet;
@@ -51,6 +48,8 @@ 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.collect.Sets;
+
 /**
  * This is a helper class used to manage the namespace
  * metadata that is stored in TableName.NAMESPACE_TABLE_NAME
@@ -73,8 +72,7 @@ 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 = 1800000; // default is 30 minutes
-  private static final int WAIT_MESSAGE_TO_PRINTOUT = 300000; // print out message every 5 minutes
+  static final int DEFAULT_NS_INIT_TIMEOUT = 300000;
 
   public TableNamespaceManager(MasterServices masterServices) {
     this.masterServices = masterServices;
@@ -93,18 +91,12 @@ 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)) {
-        waitTime = EnvironmentEdgeManager.currentTime() - startTime;
-        if (waitTime > timeout) {
+        if (EnvironmentEdgeManager.currentTime() - startTime + 100 > 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);
       }
@@ -113,11 +105,6 @@ 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");
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 d19635c..e873156 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
@@ -193,20 +193,21 @@ public class CreateNamespaceProcedure
     sb.append(")");
   }
 
-  private static boolean isBootstrapNamespace(final NamespaceDescriptor nsDescriptor) {
+  private boolean isBootstrapNamespace() {
     return nsDescriptor.equals(NamespaceDescriptor.DEFAULT_NAMESPACE) ||
         nsDescriptor.equals(NamespaceDescriptor.SYSTEM_NAMESPACE);
   }
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    // 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;
+    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;
+      }
     }
-
     return env.getProcedureQueue().tryAcquireNamespaceExclusiveLock(this, getNamespaceName());
   }
 
@@ -330,7 +331,7 @@ public class CreateNamespaceProcedure
   protected static void setNamespaceQuota(
       final MasterProcedureEnv env,
       final NamespaceDescriptor nsDescriptor) throws IOException {
-    if (env.getMasterServices().isInitialized() && !isBootstrapNamespace(nsDescriptor)) {
+    if (env.getMasterServices().isInitialized()) {
       env.getMasterServices().getMasterQuotaManager().setNamespaceQuota(nsDescriptor);
     }
   }
@@ -369,6 +370,6 @@ 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(nsDescriptor);
+    return !isBootstrapNamespace();
   }
 }
\ No newline at end of file
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 6de55fa..152af45 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
@@ -275,7 +275,7 @@ public class CreateTableProcedure
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    if (!getTableName().isSystemTable() && env.waitNamespaceManagerInitialized(this)) {
+    if (!getTableName().isSystemTable() && env.waitInitialized(this)) {
       return false;
     }
     return env.getProcedureQueue().tryAcquireTableExclusiveLock(this, getTableName());
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 e011f29..a7ebc30 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
@@ -210,9 +210,7 @@ public class DeleteNamespaceProcedure
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    if (env.waitNamespaceManagerInitialized(this)) {
-      return false;
-    }
+    if (env.waitInitialized(this)) return false;
     return env.getProcedureQueue().tryAcquireNamespaceExclusiveLock(this, getNamespaceName());
   }
 
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 75822c8..3911f54 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
@@ -132,10 +132,6 @@ 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);
   }
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 5953032..5d9548b 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
@@ -191,9 +191,7 @@ public class ModifyNamespaceProcedure
 
   @Override
   protected boolean acquireLock(final MasterProcedureEnv env) {
-    if (env.waitNamespaceManagerInitialized(this)) {
-      return false;
-    }
+    if (env.waitInitialized(this)) return false;
     return env.getProcedureQueue().tryAcquireNamespaceExclusiveLock(this, getNamespaceName());
   }
 
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
index c0092be..cdebddb 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
@@ -106,7 +106,6 @@ import org.apache.hadoop.hbase.security.User;
 import org.apache.hadoop.hbase.security.visibility.VisibilityLabelsCache;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.CommonFSUtils;
-import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
 import org.apache.hadoop.hbase.util.FSTableDescriptors;
 import org.apache.hadoop.hbase.util.FSUtils;
 import org.apache.hadoop.hbase.util.JVMClusterUtil;
@@ -1484,7 +1483,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
           .setMaxVersions(numVersions);
       desc.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc, startKey, endKey, numRegions);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(tableName);
@@ -1544,7 +1542,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
       hcd.setBlocksize(blockSize);
       htd.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(htd, splitKeys);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are
     // assigned
@@ -1561,7 +1558,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
    */
   public HTable createTable(HTableDescriptor htd, byte[][] splitRows)
       throws IOException {
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(htd, splitRows);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(htd.getTableName());
@@ -1616,7 +1612,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
       hcd.setBloomFilterType(BloomType.NONE);
       desc.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc);
     return new HTable(c, desc.getTableName());
   }
@@ -1639,7 +1634,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
           .setMaxVersions(numVersions);
       desc.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(tableName);
@@ -1664,7 +1658,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
           .setMaxVersions(numVersions);
       desc.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc);
     return new HTable(c, desc.getTableName());
   }
@@ -1739,7 +1732,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
       HColumnDescriptor hcd = new HColumnDescriptor(family).setMaxVersions(numVersions);
       desc.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc, splitKeys);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(tableName);
@@ -1792,7 +1784,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
           .setBlocksize(blockSize);
       desc.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(tableName);
@@ -1832,7 +1823,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
       desc.addFamily(hcd);
       i++;
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(tableName);
@@ -1865,7 +1855,6 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
     HTableDescriptor desc = new HTableDescriptor(tableName);
     HColumnDescriptor hcd = new HColumnDescriptor(family);
     desc.addFamily(hcd);
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc, splitRows);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(tableName);
@@ -1898,35 +1887,12 @@ public class HBaseTestingUtility extends HBaseCommonTestingUtility {
       HColumnDescriptor hcd = new HColumnDescriptor(family);
       desc.addFamily(hcd);
     }
-    waitUntilTableNamespaceManagerStarted();
     getHBaseAdmin().createTable(desc, splitRows);
     // HBaseAdmin only waits for regions to appear in hbase:meta we should wait until they are assigned
     waitUntilAllRegionsAssigned(desc.getTableName());
     return new HTable(getConfiguration(), desc.getTableName());
   }
 
-  public void waitUntilTableNamespaceManagerStarted() throws IOException {
-    final int maxwait = 60000;
-    final long startTime = EnvironmentEdgeManager.currentTime();
-    final HMaster master = getMiniHBaseCluster().getMaster();
-    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");
-    }
-  }
-
-
   /**
    * Create an unmanaged WAL. Be sure to close it when you're through.
    */
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 fc20d70..f91adf4 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.createTable(tableName, FAMILY, versions);
+    TEST_UTIL.getHBaseAdmin().createTable(desc);
     int expected;
     List<Cell> cells;
     try (Connection conn = ConnectionFactory.createConnection(TEST_UTIL.getConfiguration());
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentListener.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentListener.java
index bd5e0fd..12d04ff 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentListener.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentListener.java
@@ -22,7 +22,6 @@ import static org.junit.Assert.assertEquals;
 
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
@@ -85,18 +84,6 @@ public class TestAssignmentListener {
         Thread.sleep(100);
       }
     }
-
-    //wait on multiple possible values.
-    public int awaitModifications(List<Integer> values) throws InterruptedException {
-      while (true) {
-        for (int v : values) {
-          if (modified.compareAndSet(v, 0)) {
-            return v;
-          }
-          Thread.sleep(100);
-        }
-      }
-    }
   }
 
   static class DummyAssignmentListener extends DummyListener implements AssignmentListener {
@@ -239,13 +226,10 @@ public class TestAssignmentListener {
       final byte[] FAMILY = Bytes.toBytes("cf");
 
       // Create a new table, with a single region
-      LOG.info("Create Table testtb");
+      LOG.info("Create Table");
       TEST_UTIL.createTable(TABLE_NAME, FAMILY);
-      // Wait for 1 or 2 since if namespace table is created before testtb, modified value will be 2
-      // Waiting on 1 will fail this test indefinitely.
-      List<Integer> modificationValues = Arrays.asList(1,2);
-      int modification = listener.awaitModifications(modificationValues);
-      assertEquals(modification, listener.getLoadCount());
+      listener.awaitModifications(1);
+      assertEquals(1, listener.getLoadCount());
       assertEquals(0, listener.getCloseCount());
 
       // Add some data
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 47577c4..2228188 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
@@ -508,9 +508,6 @@ 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);
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 c273afa..f6f9b49 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
@@ -66,9 +66,6 @@ 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");
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 3b1daf2..4483fce 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
@@ -215,6 +215,10 @@ public class TestMasterNoCluster {
       public ClusterConnection getConnection() {
         return mockedConnection;
       }
+
+      @Override
+      void initNamespace() {
+      }
     };
     master.start();
 
@@ -292,6 +296,10 @@ public class TestMasterNoCluster {
           return null;
         }
       }
+
+      @Override
+      void initNamespace() {
+      }
     };
     master.start();
 
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 eed85c1..f25e45c 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);
   }
 
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 c59b27d..e7ddff6 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
@@ -52,10 +52,6 @@ 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
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 d23ab8a..b7a6434 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
@@ -35,7 +35,6 @@ 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;
@@ -44,8 +43,6 @@ 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);
@@ -79,77 +76,13 @@ public class TestMasterProcedureEvents {
     ProcedureExecutor<MasterProcedureEnv> procExec = master.getMasterProcedureExecutor();
     MasterProcedureScheduler procSched = procExec.getEnvironment().getProcedureQueue();
 
-    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
+    master.setInitialized(false); // fake it, set back later
 
     CreateTableProcedure proc = new CreateTableProcedure(
       procExec.getEnvironment(), htd, new HRegionInfo[] { hri });
@@ -164,7 +97,7 @@ public class TestMasterProcedureEvents {
       assertEquals(nullPollCalls, procSched.getNullPollCalls());
     }
 
-    master.setNamespaceManagerInitializedEvent(true);
+    master.setInitialized(true);
     ProcedureTestingUtility.waitProcedure(procExec, procId);
 
     assertEquals(pollCalls + 2, procSched.getPollCalls());
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 394b114..327afc4 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
@@ -48,10 +48,6 @@ 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
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 e69d717..f45df18 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
@@ -66,9 +66,6 @@ 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);
   }
 
@@ -87,10 +84,6 @@ public class TestRegionOpen {
     ThreadPoolExecutor exec = getRS().getExecutorService()
         .getExecutorThreadPool(ExecutorType.RS_OPEN_PRIORITY_REGION);
 
-    // This test depends on namespace region open; therefore, we have to wait for namespace
-    // manager start before continue.
-    HTU.waitUntilTableNamespaceManagerStarted();
-
     assertEquals(1, exec.getCompletedTaskCount()); // namespace region
 
     HTableDescriptor htd = new HTableDescriptor(tableName);
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 4eb949f..ee1692e 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
@@ -48,7 +48,6 @@ 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);