HBASE-22737 Add a new admin method and shell cmd to trigger the hbck chore to run (#425)

Signed-off-by: stack <stack@apache.org>

hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseHbck.java

@@ -19,27 +19,29 @@ package org.apache.hadoop.hbase.client;
 
 import java.io.IOException;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.Callable;
 import java.util.stream.Collectors;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.ServerName;
-import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.ipc.RpcControllerFactory;
-import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
-import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.GetTableStateResponse;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.HbckService.BlockingInterface;
-
-import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;
-
 import org.apache.yetus.audience.InterfaceAudience;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
+import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.AssignsResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.BypassProcedureRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.BypassProcedureResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.GetTableStateResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.HbckService.BlockingInterface;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunHbckChoreRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunHbckChoreResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.ScheduleServerCrashProcedureResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.UnassignsResponse;
+
+import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;
 
 /**
  * Use {@link ClusterConnection#getHbck()} to obtain an instance of {@link Hbck} instead of
@@ -108,8 +110,7 @@ public class HBaseHbck implements Hbck {
   public List<Long> assigns(List<String> encodedRegionNames, boolean override)
       throws IOException {
     try {
-      MasterProtos.AssignsResponse response =
+      AssignsResponse response = this.hbck.assigns(rpcControllerFactory.newController(),
-          this.hbck.assigns(rpcControllerFactory.newController(),
           RequestConverter.toAssignRegionsRequest(encodedRegionNames, override));
       return response.getPidList();
     } catch (ServiceException se) {
@@ -122,8 +123,7 @@ public class HBaseHbck implements Hbck {
   public List<Long> unassigns(List<String> encodedRegionNames, boolean override)
       throws IOException {
     try {
-      MasterProtos.UnassignsResponse response =
+      UnassignsResponse response = this.hbck.unassigns(rpcControllerFactory.newController(),
-          this.hbck.unassigns(rpcControllerFactory.newController(),
           RequestConverter.toUnassignRegionsRequest(encodedRegionNames, override));
       return response.getPidList();
     } catch (ServiceException se) {
@@ -140,13 +140,13 @@ public class HBaseHbck implements Hbck {
   public List<Boolean> bypassProcedure(List<Long> pids, long waitTime, boolean override,
       boolean recursive)
       throws IOException {
-    MasterProtos.BypassProcedureResponse response = ProtobufUtil.call(
+    BypassProcedureResponse response = ProtobufUtil.call(
-        new Callable<MasterProtos.BypassProcedureResponse>() {
+        new Callable<BypassProcedureResponse>() {
           @Override
-          public MasterProtos.BypassProcedureResponse call() throws Exception {
+          public BypassProcedureResponse call() throws Exception {
             try {
               return hbck.bypassProcedure(rpcControllerFactory.newController(),
-                  MasterProtos.BypassProcedureRequest.newBuilder().addAllProcId(pids).
+                  BypassProcedureRequest.newBuilder().addAllProcId(pids).
                       setWaitTime(waitTime).setOverride(override).setRecursive(recursive).build());
             } catch (Throwable t) {
               LOG.error(pids.stream().map(i -> i.toString()).
@@ -162,7 +162,7 @@ public class HBaseHbck implements Hbck {
   public List<Long> scheduleServerCrashProcedures(List<ServerName> serverNames)
       throws IOException {
     try {
-      MasterProtos.ScheduleServerCrashProcedureResponse response =
+      ScheduleServerCrashProcedureResponse response =
           this.hbck.scheduleServerCrashProcedure(rpcControllerFactory.newController(),
             RequestConverter.toScheduleServerCrashProcedureRequest(serverNames));
       return response.getPidList();
@@ -174,4 +174,16 @@ public class HBaseHbck implements Hbck {
       throw new IOException(se);
     }
   }
+
+  @Override
+  public boolean runHbckChore() throws IOException {
+    try {
+      RunHbckChoreResponse response = this.hbck.runHbckChore(rpcControllerFactory.newController(),
+          RunHbckChoreRequest.newBuilder().build());
+      return response.getRan();
+    } catch (ServiceException se) {
+      LOG.debug("Failed to run HBCK chore", se);
+      throw new IOException(se);
+    }
+  }
 }

hbase-client/src/main/java/org/apache/hadoop/hbase/client/Hbck.java

@@ -122,4 +122,12 @@ public interface Hbck extends Abortable, Closeable {
   }
 
   List<Long> scheduleServerCrashProcedures(List<ServerName> serverNames) throws IOException;
+
+  /**
+   * Request HBCK chore to run at master side.
+   *
+   * @return <code>true</code> if HBCK chore ran, <code>false</code> if HBCK chore already running
+   * @throws IOException if a remote or network exception occurs
+   */
+  boolean runHbckChore() throws IOException;
 }

hbase-protocol-shaded/src/main/protobuf/Master.proto

@@ -358,6 +358,13 @@ message IsNormalizerEnabledResponse {
   required bool enabled = 1;
 }
 
+message RunHbckChoreRequest {
+}
+
+message RunHbckChoreResponse {
+  required bool ran = 1;
+}
+
 message RunCatalogScanRequest {
 }
 
@@ -1134,4 +1141,10 @@ service HbckService {
   /** Schedule a ServerCrashProcedure to help recover a crash server */
   rpc ScheduleServerCrashProcedure(ScheduleServerCrashProcedureRequest)
     returns(ScheduleServerCrashProcedureResponse);
+
+  /**
+   * Request HBCK chore to run at master side.
+   */
+  rpc RunHbckChore(RunHbckChoreRequest)
+    returns(RunHbckChoreResponse);
 }

hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java

@@ -378,7 +378,7 @@ public class HMaster extends HRegionServer implements MasterServices {
   private ClusterStatusPublisher clusterStatusPublisherChore = null;
   private SnapshotCleanerChore snapshotCleanerChore = null;
 
-  private HbckChecker hbckChecker;
+  private HbckChore hbckChore;
   CatalogJanitor catalogJanitorChore;
   private LogCleaner logCleaner;
   private HFileCleaner hfileCleaner;
@@ -1092,8 +1092,8 @@ public class HMaster extends HRegionServer implements MasterServices {
     getChoreService().scheduleChore(normalizerChore);
     this.catalogJanitorChore = new CatalogJanitor(this);
     getChoreService().scheduleChore(catalogJanitorChore);
-    this.hbckChecker = new HbckChecker(this);
+    this.hbckChore = new HbckChore(this);
-    getChoreService().scheduleChore(hbckChecker);
+    getChoreService().scheduleChore(hbckChore);
 
     // NAMESPACE READ!!!!
     // Here we expect hbase:namespace to be online. See inside initClusterSchemaService.
@@ -1567,7 +1567,7 @@ public class HMaster extends HRegionServer implements MasterServices {
       choreService.cancelChore(this.hfileCleaner);
       choreService.cancelChore(this.replicationBarrierCleaner);
       choreService.cancelChore(this.snapshotCleanerChore);
-      choreService.cancelChore(this.hbckChecker);
+      choreService.cancelChore(this.hbckChore);
     }
   }
 
@@ -3709,7 +3709,7 @@ public class HMaster extends HRegionServer implements MasterServices {
     return super.getWalGroupsReplicationStatus();
   }
 
-  public HbckChecker getHbckChecker() {
+  public HbckChore getHbckChore() {
-    return this.hbckChecker;
+    return this.hbckChore;
   }
 }

hbase-server/src/main/java/org/apache/hadoop/hbase/master/HbckChore.java

@@ -47,11 +47,11 @@ import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
  */
 @InterfaceAudience.Private
 @InterfaceStability.Evolving
-public class HbckChecker extends ScheduledChore {
+public class HbckChore extends ScheduledChore {
-  private static final Logger LOG = LoggerFactory.getLogger(HbckChecker.class.getName());
+  private static final Logger LOG = LoggerFactory.getLogger(HbckChore.class.getName());
 
-  private static final String HBCK_CHECKER_INTERVAL = "hbase.master.hbck.checker.interval";
+  private static final String HBCK_CHORE_INTERVAL = "hbase.master.hbck.chore.interval";
-  private static final int DEFAULT_HBCK_CHECKER_INTERVAL = 60 * 60 * 1000;
+  private static final int DEFAULT_HBCK_CHORE_INTERVAL = 60 * 60 * 1000;
 
   private final MasterServices master;
 
@@ -100,14 +100,14 @@ public class HbckChecker extends ScheduledChore {
   private volatile long checkingStartTimestamp = 0;
   private volatile long checkingEndTimestamp = 0;
 
-  public HbckChecker(MasterServices master) {
+  public HbckChore(MasterServices master) {
-    super("HbckChecker-", master,
+    super("HbckChore-", master,
-        master.getConfiguration().getInt(HBCK_CHECKER_INTERVAL, DEFAULT_HBCK_CHECKER_INTERVAL));
+        master.getConfiguration().getInt(HBCK_CHORE_INTERVAL, DEFAULT_HBCK_CHORE_INTERVAL));
     this.master = master;
   }
 
   @Override
-  protected void chore() {
+  protected synchronized void chore() {
     running = true;
     regionInfoMap.clear();
     orphanRegionsOnRS.clear();
@@ -277,6 +277,6 @@ public class HbckChecker extends ScheduledChore {
    * Used for web ui to show when the HBCK checking report generated.
    */
   public long getCheckingEndTimestamp() {
-    return this.checkingStartTimestamp;
+    return this.checkingEndTimestamp;
   }
 }

hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java

@@ -49,7 +49,6 @@ import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
 import org.apache.hadoop.hbase.client.MasterSwitchType;
 import org.apache.hadoop.hbase.client.RegionInfo;
 import org.apache.hadoop.hbase.client.RegionInfoBuilder;
-import org.apache.hadoop.hbase.client.Result;
 import org.apache.hadoop.hbase.client.Table;
 import org.apache.hadoop.hbase.client.TableDescriptor;
 import org.apache.hadoop.hbase.client.TableState;
@@ -68,10 +67,7 @@ import org.apache.hadoop.hbase.ipc.RpcServer.BlockingServiceAndInterface;
 import org.apache.hadoop.hbase.ipc.RpcServerFactory;
 import org.apache.hadoop.hbase.ipc.RpcServerInterface;
 import org.apache.hadoop.hbase.ipc.ServerRpcController;
-import org.apache.hadoop.hbase.master.assignment.MergeTableRegionsProcedure;
-import org.apache.hadoop.hbase.master.assignment.RegionStateStore;
 import org.apache.hadoop.hbase.master.assignment.RegionStates;
-import org.apache.hadoop.hbase.master.assignment.SplitTableRegionProcedure;
 import org.apache.hadoop.hbase.master.locking.LockProcedure;
 import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;
 import org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil;
@@ -91,7 +87,6 @@ import org.apache.hadoop.hbase.quotas.MasterQuotaManager;
 import org.apache.hadoop.hbase.quotas.QuotaObserverChore;
 import org.apache.hadoop.hbase.quotas.QuotaUtil;
 import org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot;
-import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;
 import org.apache.hadoop.hbase.regionserver.RSRpcServices;
 import org.apache.hadoop.hbase.regionserver.RpcSchedulerFactory;
 import org.apache.hadoop.hbase.replication.ReplicationException;
@@ -112,10 +107,8 @@ import org.apache.hadoop.hbase.snapshot.ClientSnapshotDescriptionUtils;
 import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
-import org.apache.hadoop.hbase.util.FSUtils;
 import org.apache.hadoop.hbase.util.ForeignExceptionUtil;
 import org.apache.hadoop.hbase.util.Pair;
-import org.apache.hadoop.hbase.util.PairOfSameType;
 import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;
 import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;
 import org.apache.yetus.audience.InterfaceAudience;
@@ -264,6 +257,8 @@ import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunCatalog
 import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunCatalogScanResponse;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunCleanerChoreRequest;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunCleanerChoreResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunHbckChoreRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.RunHbckChoreResponse;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.SecurityCapabilitiesRequest;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.SecurityCapabilitiesResponse;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos.SetBalancerRunningRequest;
@@ -2337,6 +2332,20 @@ public class MasterRpcServices extends RSRpcServices
  
   // HBCK Services
 
+  @Override
+  public RunHbckChoreResponse runHbckChore(RpcController c, RunHbckChoreRequest req)
+      throws ServiceException {
+    rpcPreCheck("runHbckChore");
+    LOG.info("{} request HBCK chore to run", master.getClientIdAuditPrefix());
+    HbckChore hbckChore = master.getHbckChore();
+    boolean ran = false;
+    if (!hbckChore.isRunning()) {
+      hbckChore.chore();
+      ran = true;
+    }
+    return RunHbckChoreResponse.newBuilder().setRan(ran).build();
+  }
+
   /**
    * Update state of the table in meta only. This is required by hbck in some situations to cleanup
    * stuck assign/ unassign regions procedures for the table.

hbase-server/src/main/resources/hbase-webapps/master/hbck.jsp

@@ -27,7 +27,7 @@
          import="java.time.ZonedDateTime"
          import="java.time.format.DateTimeFormatter"
 %>
-<%@ page import="org.apache.hadoop.hbase.master.HbckChecker" %>
+<%@ page import="org.apache.hadoop.hbase.master.HbckChore" %>
 <%@ page import="org.apache.hadoop.hbase.master.HMaster" %>
 <%@ page import="org.apache.hadoop.hbase.ServerName" %>
 <%@ page import="org.apache.hadoop.hbase.util.Bytes" %>
@@ -38,18 +38,18 @@
 <%
   HMaster master = (HMaster) getServletContext().getAttribute(HMaster.MASTER);
   pageContext.setAttribute("pageTitle", "HBase Master HBCK Report: " + master.getServerName());
-  HbckChecker hbckChecker = master.getHbckChecker();
+  HbckChore hbckChore = master.getHbckChore();
   Map<String, Pair<ServerName, List<ServerName>>> inconsistentRegions = null;
   Map<String, ServerName> orphanRegionsOnRS = null;
   List<String> orphanRegionsOnFS = null;
   long startTimestamp = 0;
   long endTimestamp = 0;
-  if (hbckChecker != null) {
+  if (hbckChore != null) {
-    inconsistentRegions = hbckChecker.getInconsistentRegions();
+    inconsistentRegions = hbckChore.getInconsistentRegions();
-    orphanRegionsOnRS = hbckChecker.getOrphanRegionsOnRS();
+    orphanRegionsOnRS = hbckChore.getOrphanRegionsOnRS();
-    orphanRegionsOnFS = hbckChecker.getOrphanRegionsOnFS();
+    orphanRegionsOnFS = hbckChore.getOrphanRegionsOnFS();
-    startTimestamp = hbckChecker.getCheckingStartTimestamp();
+    startTimestamp = hbckChore.getCheckingStartTimestamp();
-    endTimestamp = hbckChecker.getCheckingEndTimestamp();
+    endTimestamp = hbckChore.getCheckingEndTimestamp();
   }
   ZonedDateTime zdt = ZonedDateTime.ofInstant(Instant.ofEpochMilli(startTimestamp),
     ZoneId.systemDefault());

hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestHbck.java

@@ -37,6 +37,7 @@ import org.apache.hadoop.hbase.coprocessor.MasterCoprocessor;
 import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;
 import org.apache.hadoop.hbase.coprocessor.MasterObserver;
 import org.apache.hadoop.hbase.coprocessor.ObserverContext;
+import org.apache.hadoop.hbase.master.HMaster;
 import org.apache.hadoop.hbase.master.RegionState;
 import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;
 import org.apache.hadoop.hbase.master.procedure.TableProcedureInterface;
@@ -238,6 +239,20 @@ public class TestHbck {
     waitOnPids(pids);
   }
 
+  @Test
+  public void testRunHbckChore() throws Exception {
+    HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
+    long endTimestamp = master.getHbckChore().getCheckingEndTimestamp();
+    Hbck hbck = getHbck();
+    boolean ran = false;
+    while (!ran) {
+      ran = hbck.runHbckChore();
+      if (ran) {
+        assertTrue(master.getHbckChore().getCheckingEndTimestamp() > endTimestamp);
+      }
+    }
+  }
+
   public static class FailingSplitAfterMetaUpdatedMasterObserver
       implements MasterCoprocessor, MasterObserver {
     public volatile CountDownLatch latch;

hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestHbckChore.java

@@ -31,7 +31,7 @@ import org.apache.hadoop.hbase.ServerName;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.client.RegionInfo;
 import org.apache.hadoop.hbase.client.RegionInfoBuilder;
-import org.apache.hadoop.hbase.master.HbckChecker;
+import org.apache.hadoop.hbase.master.HbckChore;
 import org.apache.hadoop.hbase.testclassification.MasterTests;
 import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.util.Pair;
@@ -43,19 +43,19 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @Category({ MasterTests.class, MediumTests.class })
-public class TestHbckChecker extends TestAssignmentManagerBase {
+public class TestHbckChore extends TestAssignmentManagerBase {
-  private static final Logger LOG = LoggerFactory.getLogger(TestHbckChecker.class);
+  private static final Logger LOG = LoggerFactory.getLogger(TestHbckChore.class);
 
   @ClassRule
   public static final HBaseClassTestRule CLASS_RULE =
-      HBaseClassTestRule.forClass(TestHbckChecker.class);
+      HBaseClassTestRule.forClass(TestHbckChore.class);
 
-  private HbckChecker hbckChecker;
+  private HbckChore hbckChore;
 
   @Before
   public void setUp() throws Exception {
     super.setUp();
-    hbckChecker = new HbckChecker(master);
+    hbckChore = new HbckChore(master);
   }
 
   @Test
@@ -65,9 +65,9 @@ public class TestHbckChecker extends TestAssignmentManagerBase {
     List<ServerName> serverNames = master.getServerManager().getOnlineServersList();
     assertEquals(NSERVERS, serverNames.size());
 
-    hbckChecker.choreForTesting();
+    hbckChore.choreForTesting();
     Map<String, Pair<ServerName, List<ServerName>>> inconsistentRegions =
-        hbckChecker.getInconsistentRegions();
+        hbckChore.getInconsistentRegions();
 
     // Test for case1: Master thought this region opened, but no regionserver reported it.
     assertTrue(inconsistentRegions.containsKey(metaRegionName));
@@ -79,8 +79,8 @@ public class TestHbckChecker extends TestAssignmentManagerBase {
 
     // Reported right region location. Then not in problematic regions.
     am.reportOnlineRegions(locationInMeta, Collections.singleton(metaRegionNameAsBytes));
-    hbckChecker.choreForTesting();
+    hbckChore.choreForTesting();
-    inconsistentRegions = hbckChecker.getInconsistentRegions();
+    inconsistentRegions = hbckChore.getInconsistentRegions();
     assertFalse(inconsistentRegions.containsKey(metaRegionName));
   }
 
@@ -97,9 +97,9 @@ public class TestHbckChecker extends TestAssignmentManagerBase {
     assertEquals(NSERVERS, serverNames.size());
 
     // Test for case1: Master thought this region opened, but no regionserver reported it.
-    hbckChecker.choreForTesting();
+    hbckChore.choreForTesting();
     Map<String, Pair<ServerName, List<ServerName>>> inconsistentRegions =
-        hbckChecker.getInconsistentRegions();
+        hbckChore.getInconsistentRegions();
     assertTrue(inconsistentRegions.containsKey(regionName));
     Pair<ServerName, List<ServerName>> pair = inconsistentRegions.get(regionName);
     ServerName locationInMeta = pair.getFirst();
@@ -113,8 +113,8 @@ public class TestHbckChecker extends TestAssignmentManagerBase {
     final ServerName anotherServer =
         serverNames.stream().filter(s -> !s.equals(tempLocationInMeta)).findFirst().get();
     am.reportOnlineRegions(anotherServer, Collections.singleton(hri.getRegionName()));
-    hbckChecker.choreForTesting();
+    hbckChore.choreForTesting();
-    inconsistentRegions = hbckChecker.getInconsistentRegions();
+    inconsistentRegions = hbckChore.getInconsistentRegions();
     assertTrue(inconsistentRegions.containsKey(regionName));
     pair = inconsistentRegions.get(regionName);
     locationInMeta = pair.getFirst();
@@ -125,8 +125,8 @@ public class TestHbckChecker extends TestAssignmentManagerBase {
 
     // Test for case3: More than one regionservers reported opened this region.
     am.reportOnlineRegions(locationInMeta, Collections.singleton(hri.getRegionName()));
-    hbckChecker.choreForTesting();
+    hbckChore.choreForTesting();
-    inconsistentRegions = hbckChecker.getInconsistentRegions();
+    inconsistentRegions = hbckChore.getInconsistentRegions();
     assertTrue(inconsistentRegions.containsKey(regionName));
     pair = inconsistentRegions.get(regionName);
     locationInMeta = pair.getFirst();
@@ -137,8 +137,8 @@ public class TestHbckChecker extends TestAssignmentManagerBase {
 
     // Reported right region location. Then not in problematic regions.
     am.reportOnlineRegions(anotherServer, Collections.EMPTY_SET);
-    hbckChecker.choreForTesting();
+    hbckChore.choreForTesting();
-    inconsistentRegions = hbckChecker.getInconsistentRegions();
+    inconsistentRegions = hbckChore.getInconsistentRegions();
     assertFalse(inconsistentRegions.containsKey(regionName));
   }
 }

hbase-shell/src/main/ruby/hbase/admin.rb

@@ -37,6 +37,7 @@ module Hbase
       @connection = connection
       # Java Admin instance
       @admin = @connection.getAdmin
+      @hbck = @connection.getHbck
       @conf = @connection.getConfiguration
     end
 
@@ -249,6 +250,12 @@ module Hbase
       @admin.isMasterInMaintenanceMode
     end
 
+    #----------------------------------------------------------------------------------------------
+    # Request HBCK chore to run
+    def hbck_chore_run
+      @hbck.runHbckChore
+    end
+
     #----------------------------------------------------------------------------------------------
     # Request a scan of the catalog table (for garbage collection)
     # Returns an int signifying the number of entries cleaned

hbase-shell/src/main/ruby/shell.rb

@@ -344,6 +344,7 @@ Shell.load_command_group(
     unassign
     zk_dump
     wal_roll
+    hbck_chore_run
     catalogjanitor_run
     catalogjanitor_switch
     catalogjanitor_enabled

hbase-shell/src/main/ruby/shell/commands/hbck_chore_run.rb

@@ -0,0 +1,38 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+module Shell
+  module Commands
+    class HbckChoreRun < Command
+      def help
+        <<-EOF
+Request HBCK chore to run at master side. It will try to find the orphan
+regions on RegionServer or FileSystem and find the inconsistent regions.
+You can check the HBCK report at Master web UI.
+
+  hbase> hbck_chore_run
+
+EOF
+      end
+
+      def command
+        admin.hbck_chore_run
+      end
+    end
+  end
+end

hbase-shell/src/test/ruby/hbase/admin2_test.rb

@@ -73,6 +73,10 @@ module Hbase
       # Some text which isn't in the simple output
       assert output.include? 'regionsInTransition'
     end
+
+    define_test 'hbck_chore_run' do
+      command(:hbck_chore_run)
+    end
   end
 
   # Simple administration methods tests