HBASE-17001 Enforce quota violation policies in the RegionServer

The nuts-and-bolts of filesystem quotas. The Master must inform
RegionServers of the violation of a quota by a table. The RegionServer
must apply the violation policy as configured. Need to ensure
that the proper interfaces exist to satisfy all necessary policies.

This required a massive rewrite of the internal tracking by
the general space quota feature. Instead of tracking "violations",
we need to start tracking "usage". This allows us to make the decision
at the RegionServer level as to when the files in a bulk load request
should be accept or rejected which ultimately lets us avoid bulk loads
dramatically exceeding a configured space quota.


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/66cf4809
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/66cf4809
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/66cf4809

Branch: refs/heads/HBASE-16961
Commit: 66cf48095cfcfbc04bf34873e909b1e60b24fb5e
Parents: cfd374d
Author: Josh Elser <els...@apache.org>
Authored: Thu Dec 15 13:27:56 2016 -0500
Committer: Josh Elser <els...@apache.org>
Committed: Tue Apr 25 18:24:20 2017 -0400

----------------------------------------------------------------------
 .../hbase/quotas/QuotaExceededException.java    |    4 +
 .../hadoop/hbase/quotas/QuotaTableUtil.java     |   47 +-
 .../hadoop/hbase/quotas/SpaceQuotaSnapshot.java |  192 +++
 .../shaded/protobuf/generated/QuotaProtos.java  | 1384 +++++++++++++++++-
 .../src/main/protobuf/Quota.proto               |   15 +
 .../hbase/protobuf/generated/QuotaProtos.java   | 1324 ++++++++++++++++-
 hbase-protocol/src/main/protobuf/Quota.proto    |   15 +
 .../org/apache/hadoop/hbase/master/HMaster.java |   29 +-
 .../hbase/quotas/ActivePolicyEnforcement.java   |   86 ++
 .../quotas/NamespaceQuotaSnapshotStore.java     |  127 ++
 .../quotas/NamespaceQuotaViolationStore.java    |  127 --
 .../hadoop/hbase/quotas/QuotaObserverChore.java |  344 +++--
 .../hadoop/hbase/quotas/QuotaSnapshotStore.java |   96 ++
 .../hbase/quotas/QuotaViolationStore.java       |   89 --
 .../quotas/RegionServerSpaceQuotaManager.java   |  179 ++-
 .../hbase/quotas/SpaceLimitingException.java    |   95 ++
 .../hbase/quotas/SpaceQuotaRefresherChore.java  |  225 +++
 .../quotas/SpaceQuotaSnapshotNotifier.java      |   45 +
 .../SpaceQuotaSnapshotNotifierFactory.java      |   62 +
 .../quotas/SpaceQuotaViolationNotifier.java     |   54 -
 .../SpaceQuotaViolationNotifierFactory.java     |   62 -
 .../SpaceQuotaViolationNotifierForTest.java     |   54 -
 ...SpaceQuotaViolationPolicyRefresherChore.java |  154 --
 .../quotas/SpaceViolationPolicyEnforcement.java |   91 ++
 .../SpaceViolationPolicyEnforcementFactory.java |   95 ++
 .../hbase/quotas/TableQuotaSnapshotStore.java   |  127 ++
 .../hbase/quotas/TableQuotaViolationStore.java  |  127 --
 .../quotas/TableSpaceQuotaSnapshotNotifier.java |   52 +
 .../TableSpaceQuotaViolationNotifier.java       |   55 -
 .../AbstractViolationPolicyEnforcement.java     |  118 ++
 ...LoadVerifyingViolationPolicyEnforcement.java |   50 +
 .../DisableTableViolationPolicyEnforcement.java |   80 +
 .../NoInsertsViolationPolicyEnforcement.java    |   55 +
 ...esCompactionsViolationPolicyEnforcement.java |   64 +
 .../NoWritesViolationPolicyEnforcement.java     |   54 +
 .../hbase/regionserver/CompactSplitThread.java  |   12 +
 .../hbase/regionserver/RSRpcServices.java       |   92 +-
 .../hbase/quotas/SpaceQuotaHelperForTests.java  |  228 +++
 .../SpaceQuotaSnapshotNotifierForTest.java      |   55 +
 .../quotas/TestActivePolicyEnforcement.java     |   74 +
 .../quotas/TestFileSystemUtilizationChore.java  |    3 +-
 .../TestNamespaceQuotaViolationStore.java       |   16 +-
 .../hbase/quotas/TestQuotaObserverChore.java    |   30 +-
 .../TestQuotaObserverChoreWithMiniCluster.java  |  351 ++---
 .../hadoop/hbase/quotas/TestQuotaTableUtil.java |   34 +-
 .../TestRegionServerSpaceQuotaManager.java      |  174 ++-
 ...SpaceQuotaViolationPolicyRefresherChore.java |  193 ++-
 .../hadoop/hbase/quotas/TestSpaceQuotas.java    |  452 ++++++
 .../quotas/TestTableQuotaViolationStore.java    |   22 +-
 .../TestTableSpaceQuotaViolationNotifier.java   |   48 +-
 .../hbase/quotas/TestTablesWithQuotas.java      |    8 +-
 .../BaseViolationPolicyEnforcement.java         |   31 +
 ...kLoadCheckingViolationPolicyEnforcement.java |  142 ++
 ...tDisableTableViolationPolicyEnforcement.java |   59 +
 ...TestNoInsertsViolationPolicyEnforcement.java |   57 +
 ...esCompactionsViolationPolicyEnforcement.java |   58 +
 .../TestNoWritesViolationPolicyEnforcement.java |   57 +
 57 files changed, 6492 insertions(+), 1481 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/66cf4809/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaExceededException.java
----------------------------------------------------------------------
diff --git 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaExceededException.java
 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaExceededException.java
index 0ab75da..fc1e41c 100644
--- 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaExceededException.java
+++ 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaExceededException.java
@@ -29,4 +29,8 @@ public class QuotaExceededException extends 
DoNotRetryIOException {
   public QuotaExceededException(String msg) {
     super(msg);
   }
+
+  public QuotaExceededException(String msg, Throwable cause) {
+    super(msg, cause);
+  }
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/66cf4809/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
----------------------------------------------------------------------
diff --git 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
index b5eac48..66535b2 100644
--- 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
+++ 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
@@ -35,7 +35,6 @@ import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.classification.InterfaceAudience;
 import org.apache.hadoop.hbase.classification.InterfaceStability;
 import org.apache.hadoop.hbase.client.Connection;
-import org.apache.hadoop.hbase.client.Delete;
 import org.apache.hadoop.hbase.client.Get;
 import org.apache.hadoop.hbase.client.Put;
 import org.apache.hadoop.hbase.client.Result;
@@ -52,6 +51,7 @@ import 
org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString;
 import 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException;
 import org.apache.hadoop.hbase.shaded.com.google.protobuf.UnsafeByteOperations;
 import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.Quotas;
 import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuota;
 import org.apache.hadoop.hbase.util.Bytes;
@@ -62,8 +62,9 @@ import org.apache.hadoop.hbase.util.Strings;
  * <pre>
  *     ROW-KEY      FAM/QUAL        DATA
  *   n.&lt;namespace&gt; q:s         &lt;global-quotas&gt;
+ *   t.&lt;namespace&gt; u:p        &lt;namespace-quota policy&gt;
  *   t.&lt;table&gt;     q:s         &lt;global-quotas&gt;
- *   t.&lt;table&gt;     u:v        &lt;space violation policy&gt;
+ *   t.&lt;table&gt;     u:p        &lt;table-quota policy&gt;
  *   u.&lt;user&gt;      q:s         &lt;global-quotas&gt;
  *   u.&lt;user&gt;      q:s.&lt;table&gt; &lt;table-quotas&gt;
  *   u.&lt;user&gt;      q:s.&lt;ns&gt;:   &lt;namespace-quotas&gt;
@@ -82,7 +83,9 @@ public class QuotaTableUtil {
   protected static final byte[] QUOTA_FAMILY_USAGE = Bytes.toBytes("u");
   protected static final byte[] QUOTA_QUALIFIER_SETTINGS = Bytes.toBytes("s");
   protected static final byte[] QUOTA_QUALIFIER_SETTINGS_PREFIX = 
Bytes.toBytes("s.");
-  protected static final byte[] QUOTA_QUALIFIER_VIOLATION = Bytes.toBytes("v");
+  protected static final byte[] QUOTA_QUALIFIER_POLICY = Bytes.toBytes("p");
+  protected static final String QUOTA_POLICY_COLUMN =
+      Bytes.toString(QUOTA_FAMILY_USAGE) + ":" + 
Bytes.toString(QUOTA_QUALIFIER_POLICY);
   protected static final byte[] QUOTA_USER_ROW_KEY_PREFIX = 
Bytes.toBytes("u.");
   protected static final byte[] QUOTA_TABLE_ROW_KEY_PREFIX = 
Bytes.toBytes("t.");
   protected static final byte[] QUOTA_NAMESPACE_ROW_KEY_PREFIX = 
Bytes.toBytes("n.");
@@ -214,10 +217,10 @@ public class QuotaTableUtil {
   /**
    * Creates a {@link Scan} which returns only quota violations from the quota 
table.
    */
-  public static Scan makeQuotaViolationScan() {
+  public static Scan makeQuotaSnapshotScan() {
     Scan s = new Scan();
     // Limit to "u:v" column
-    s.addColumn(QUOTA_FAMILY_USAGE, QUOTA_QUALIFIER_VIOLATION);
+    s.addColumn(QUOTA_FAMILY_USAGE, QUOTA_QUALIFIER_POLICY);
     // Limit rowspace to the "t:" prefix
     s.setRowPrefixFilter(QUOTA_TABLE_ROW_KEY_PREFIX);
     return s;
@@ -230,26 +233,25 @@ public class QuotaTableUtil {
    * will throw an {@link IllegalArgumentException}.
    *
    * @param result A row from the quota table.
-   * @param policies A map of policies to add the result of this method into.
+   * @param snapshots A map of violations to add the result of this method 
into.
    */
-  public static void extractViolationPolicy(
-      Result result, Map<TableName,SpaceViolationPolicy> policies) {
+  public static void extractQuotaSnapshot(
+      Result result, Map<TableName,SpaceQuotaSnapshot> snapshots) {
     byte[] row = Objects.requireNonNull(result).getRow();
     if (null == row) {
       throw new IllegalArgumentException("Provided result had a null row");
     }
     final TableName targetTableName = getTableFromRowKey(row);
-    Cell c = result.getColumnLatestCell(QUOTA_FAMILY_USAGE, 
QUOTA_QUALIFIER_VIOLATION);
+    Cell c = result.getColumnLatestCell(QUOTA_FAMILY_USAGE, 
QUOTA_QUALIFIER_POLICY);
     if (null == c) {
       throw new IllegalArgumentException("Result did not contain the expected 
column "
-          + Bytes.toString(QUOTA_FAMILY_USAGE) + ":" + 
Bytes.toString(QUOTA_QUALIFIER_VIOLATION)
-          + ", " + result.toString());
+          + QUOTA_POLICY_COLUMN + ", " + result.toString());
     }
     ByteString buffer = UnsafeByteOperations.unsafeWrap(
         c.getValueArray(), c.getValueOffset(), c.getValueLength());
     try {
-      SpaceQuota quota = SpaceQuota.parseFrom(buffer);
-      policies.put(targetTableName, getViolationPolicy(quota));
+      QuotaProtos.SpaceQuotaSnapshot snapshot = 
QuotaProtos.SpaceQuotaSnapshot.parseFrom(buffer);
+      snapshots.put(targetTableName, 
SpaceQuotaSnapshot.toSpaceQuotaSnapshot(snapshot));
     } catch (InvalidProtocolBufferException e) {
       throw new IllegalArgumentException(
           "Result did not contain a valid SpaceQuota protocol buffer message", 
e);
@@ -385,23 +387,14 @@ public class QuotaTableUtil {
   /**
    * Creates a {@link Put} to enable the given <code>policy</code> on the 
<code>table</code>.
    */
-  public static Put createEnableViolationPolicyUpdate(
-      TableName tableName, SpaceViolationPolicy policy) {
+  public static Put createPutSpaceSnapshot(TableName tableName, 
SpaceQuotaSnapshot snapshot) {
     Put p = new Put(getTableRowKey(tableName));
-    SpaceQuota quota = getProtoViolationPolicy(policy);
-    p.addColumn(QUOTA_FAMILY_USAGE, QUOTA_QUALIFIER_VIOLATION, 
quota.toByteArray());
+    p.addColumn(
+        QUOTA_FAMILY_USAGE, QUOTA_QUALIFIER_POLICY,
+        SpaceQuotaSnapshot.toProtoSnapshot(snapshot).toByteArray());
     return p;
   }
 
-  /**
-   * Creates a {@link Delete} to remove a policy on the given 
<code>table</code>.
-   */
-  public static Delete createRemoveViolationPolicyUpdate(TableName tableName) {
-    Delete d = new Delete(getTableRowKey(tableName));
-    d.addColumn(QUOTA_FAMILY_USAGE, QUOTA_QUALIFIER_VIOLATION);
-    return d;
-  }
-
   /* =========================================================================
    *  Quotas protobuf helpers
    */
@@ -536,4 +529,4 @@ public class QuotaTableUtil {
     }
     return ProtobufUtil.toViolationPolicy(proto.getViolationPolicy());
   }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/hbase/blob/66cf4809/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/SpaceQuotaSnapshot.java
----------------------------------------------------------------------
diff --git 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/SpaceQuotaSnapshot.java
 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/SpaceQuotaSnapshot.java
new file mode 100644
index 0000000..86d64d3
--- /dev/null
+++ 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/SpaceQuotaSnapshot.java
@@ -0,0 +1,192 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.quotas;
+
+import java.util.Objects;
+
+import org.apache.commons.lang.builder.HashCodeBuilder;
+import org.apache.hadoop.hbase.classification.InterfaceAudience;
+import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos;
+
+/**
+ * A point-in-time view of a space quota on a table.
+ */
+@InterfaceAudience.Private
+public class SpaceQuotaSnapshot {
+  private static final SpaceQuotaSnapshot NO_SUCH_SNAPSHOT = new 
SpaceQuotaSnapshot(
+      SpaceQuotaStatus.notInViolation(), 0, Long.MAX_VALUE);
+  private final SpaceQuotaStatus quotaStatus;
+  private final long usage;
+  private final long limit;
+
+  /**
+   * Encapsulates the state of a quota on a table. The quota may or may not be 
in violation.
+   * If it is in violation, there will be a non-null violation policy.
+   */
+  @InterfaceAudience.Private
+  public static class SpaceQuotaStatus {
+    private static final SpaceQuotaStatus NOT_IN_VIOLATION = new 
SpaceQuotaStatus(null, false);
+    final SpaceViolationPolicy policy;
+    final boolean inViolation;
+
+    public SpaceQuotaStatus(SpaceViolationPolicy policy) {
+      this.policy = Objects.requireNonNull(policy);
+      this.inViolation = true;
+    }
+
+    private SpaceQuotaStatus(SpaceViolationPolicy policy, boolean inViolation) 
{
+      this.policy = policy;
+      this.inViolation = inViolation;
+    }
+
+    /**
+     * The violation policy which may be null. Is guaranteed to be non-null if
+     * {@link #isInViolation()} is <code>true</code>, and <code>false</code>
+     * otherwise.
+     */
+    public SpaceViolationPolicy getPolicy() {
+      return policy;
+    }
+
+    /**
+     * <code>true</code> if the quota is being violated, <code>false</code> 
otherwise.
+     */
+    public boolean isInViolation() {
+      return inViolation;
+    }
+
+    /**
+     * Returns a singleton referring to a quota which is not in violation.
+     */
+    public static SpaceQuotaStatus notInViolation() {
+      return NOT_IN_VIOLATION;
+    }
+
+    @Override
+    public int hashCode() {
+      return new HashCodeBuilder().append(policy == null ? 0 : 
policy.hashCode())
+          .append(inViolation).toHashCode();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (o instanceof SpaceQuotaStatus) {
+        SpaceQuotaStatus other = (SpaceQuotaStatus) o;
+        return Objects.equals(policy, other.policy) && inViolation == 
other.inViolation;
+      }
+      return false;
+    }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder(getClass().getSimpleName());
+      sb.append("[policy=").append(policy);
+      sb.append(", inViolation=").append(inViolation).append("]");
+      return sb.toString();
+    }
+
+    public static QuotaProtos.SpaceQuotaStatus toProto(SpaceQuotaStatus 
status) {
+      QuotaProtos.SpaceQuotaStatus.Builder builder = 
QuotaProtos.SpaceQuotaStatus.newBuilder();
+      builder.setInViolation(status.inViolation);
+      if (status.isInViolation()) {
+        
builder.setPolicy(ProtobufUtil.toProtoViolationPolicy(status.getPolicy()));
+      }
+      return builder.build();
+    }
+
+    public static SpaceQuotaStatus toStatus(QuotaProtos.SpaceQuotaStatus 
proto) {
+      if (proto.getInViolation()) {
+        return new 
SpaceQuotaStatus(ProtobufUtil.toViolationPolicy(proto.getPolicy()));
+      } else {
+        return NOT_IN_VIOLATION;
+      }
+    }
+  }
+
+  public SpaceQuotaSnapshot(SpaceQuotaStatus quotaStatus, long usage, long 
limit) {
+    this.quotaStatus = Objects.requireNonNull(quotaStatus);
+    this.usage = usage;
+    this.limit = limit;
+  }
+
+  /**
+   * Returns the status of the quota.
+   */
+  public SpaceQuotaStatus getQuotaStatus() {
+    return quotaStatus;
+  }
+
+  /**
+   * Returns the current usage, in bytes, of the target (e.g. table, 
namespace).
+   */
+  public long getUsage() {
+    return usage;
+  }
+
+  /**
+   * Returns the limit, in bytes, of the target (e.g. table, namespace).
+   */
+  public long getLimit() {
+    return limit;
+  }
+
+  @Override
+  public int hashCode() {
+    return new HashCodeBuilder()
+        .append(quotaStatus.hashCode())
+        .append(usage)
+        .append(limit)
+        .toHashCode();
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o instanceof SpaceQuotaSnapshot) {
+      SpaceQuotaSnapshot other = (SpaceQuotaSnapshot) o;
+      return quotaStatus.equals(other.quotaStatus) && usage == other.usage && 
limit == other.limit;
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder(32);
+    sb.append("SpaceQuotaSnapshot[policy=").append(quotaStatus).append(", 
use=");
+    sb.append(usage).append("bytes/").append(limit).append("bytes]");
+    return sb.toString();
+  }
+
+  // ProtobufUtil is in hbase-client, and this doesn't need to be public.
+  public static SpaceQuotaSnapshot 
toSpaceQuotaSnapshot(QuotaProtos.SpaceQuotaSnapshot proto) {
+    return new SpaceQuotaSnapshot(SpaceQuotaStatus.toStatus(proto.getStatus()),
+        proto.getUsage(), proto.getLimit());
+  }
+
+  public static QuotaProtos.SpaceQuotaSnapshot 
toProtoSnapshot(SpaceQuotaSnapshot snapshot) {
+    return QuotaProtos.SpaceQuotaSnapshot.newBuilder()
+        .setStatus(SpaceQuotaStatus.toProto(snapshot.getQuotaStatus()))
+        .setUsage(snapshot.getUsage()).setLimit(snapshot.getLimit()).build();
+  }
+
+  /**
+   * Returns a singleton that corresponds to no snapshot information.
+   */
+  public static SpaceQuotaSnapshot getNoSuchSnapshot() {
+    return NO_SUCH_SNAPSHOT;
+  }
+}

http://git-wip-us.apache.org/repos/asf/hbase/blob/66cf4809/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/QuotaProtos.java
----------------------------------------------------------------------
diff --git 
a/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/QuotaProtos.java
 
b/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/QuotaProtos.java
index 0ab2576..117e839 100644
--- 
a/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/QuotaProtos.java
+++ 
b/hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/QuotaProtos.java
@@ -6018,6 +6018,1344 @@ public final class QuotaProtos {
 
   }
 
+  public interface SpaceQuotaStatusOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:hbase.pb.SpaceQuotaStatus)
+      org.apache.hadoop.hbase.shaded.com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+     */
+    boolean hasPolicy();
+    /**
+     * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+     */
+    
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy
 getPolicy();
+
+    /**
+     * <code>optional bool in_violation = 2;</code>
+     */
+    boolean hasInViolation();
+    /**
+     * <code>optional bool in_violation = 2;</code>
+     */
+    boolean getInViolation();
+  }
+  /**
+   * <pre>
+   * Represents the state of a quota on a table. Either the quota is not in 
violation
+   * or it is in violatino there is a violation policy which should be in 
effect.
+   * </pre>
+   *
+   * Protobuf type {@code hbase.pb.SpaceQuotaStatus}
+   */
+  public  static final class SpaceQuotaStatus extends
+      org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3 
implements
+      // @@protoc_insertion_point(message_implements:hbase.pb.SpaceQuotaStatus)
+      SpaceQuotaStatusOrBuilder {
+    // Use SpaceQuotaStatus.newBuilder() to construct.
+    private 
SpaceQuotaStatus(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<?>
 builder) {
+      super(builder);
+    }
+    private SpaceQuotaStatus() {
+      policy_ = 1;
+      inViolation_ = false;
+    }
+
+    @java.lang.Override
+    public final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SpaceQuotaStatus(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      this();
+      int mutable_bitField0_ = 0;
+      
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet.Builder 
unknownFields =
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 8: {
+              int rawValue = input.readEnum();
+              
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy
 value = 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy.valueOf(rawValue);
+              if (value == null) {
+                unknownFields.mergeVarintField(1, rawValue);
+              } else {
+                bitField0_ |= 0x00000001;
+                policy_ = rawValue;
+              }
+              break;
+            }
+            case 16: {
+              bitField0_ |= 0x00000002;
+              inViolation_ = input.readBool();
+              break;
+            }
+          }
+        }
+      } catch 
(org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaStatus_descriptor;
+    }
+
+    protected 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaStatus_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.class,
 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder.class);
+    }
+
+    private int bitField0_;
+    public static final int POLICY_FIELD_NUMBER = 1;
+    private int policy_;
+    /**
+     * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+     */
+    public boolean hasPolicy() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    /**
+     * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+     */
+    public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy
 getPolicy() {
+      
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy
 result = 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy.valueOf(policy_);
+      return result == null ? 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy.DISABLE
 : result;
+    }
+
+    public static final int IN_VIOLATION_FIELD_NUMBER = 2;
+    private boolean inViolation_;
+    /**
+     * <code>optional bool in_violation = 2;</code>
+     */
+    public boolean hasInViolation() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    /**
+     * <code>optional bool in_violation = 2;</code>
+     */
+    public boolean getInViolation() {
+      return inViolation_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void 
writeTo(org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream 
output)
+                        throws java.io.IOException {
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeEnum(1, policy_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeBool(2, inViolation_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += 
org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
+          .computeEnumSize(1, policy_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += 
org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
+          .computeBoolSize(2, inViolation_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus))
 {
+        return super.equals(obj);
+      }
+      
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
other = 
(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus)
 obj;
+
+      boolean result = true;
+      result = result && (hasPolicy() == other.hasPolicy());
+      if (hasPolicy()) {
+        result = result && policy_ == other.policy_;
+      }
+      result = result && (hasInViolation() == other.hasInViolation());
+      if (hasInViolation()) {
+        result = result && (getInViolation()
+            == other.getInViolation());
+      }
+      result = result && unknownFields.equals(other.unknownFields);
+      return result;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasPolicy()) {
+        hash = (37 * hash) + POLICY_FIELD_NUMBER;
+        hash = (53 * hash) + policy_;
+      }
+      if (hasInViolation()) {
+        hash = (37 * hash) + IN_VIOLATION_FIELD_NUMBER;
+        hash = (53 * hash) + 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Internal.hashBoolean(
+            getInViolation());
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(byte[] data)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(
+        byte[] data,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(
+        java.io.InputStream input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseDelimitedFrom(
+        java.io.InputStream input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder 
newBuilder(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus
 prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.BuilderParent
 parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * <pre>
+     * Represents the state of a quota on a table. Either the quota is not in 
violation
+     * or it is in violatino there is a violation policy which should be in 
effect.
+     * </pre>
+     *
+     * Protobuf type {@code hbase.pb.SpaceQuotaStatus}
+     */
+    public static final class Builder extends
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<Builder>
 implements
+        // 
@@protoc_insertion_point(builder_implements:hbase.pb.SpaceQuotaStatus)
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatusOrBuilder
 {
+      public static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaStatus_descriptor;
+      }
+
+      protected 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaStatus_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.class,
 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder.class);
+      }
+
+      // Construct using 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.BuilderParent
 parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if 
(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      public Builder clear() {
+        super.clear();
+        policy_ = 1;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        inViolation_ = false;
+        bitField0_ = (bitField0_ & ~0x00000002);
+        return this;
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaStatus_descriptor;
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
getDefaultInstanceForType() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.getDefaultInstance();
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
build() {
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
buildPartial() {
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
result = new 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.policy_ = policy_;
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        result.inViolation_ = inViolation_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder clone() {
+        return (Builder) super.clone();
+      }
+      public Builder setField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field,
+          Object value) {
+        return (Builder) super.setField(field, value);
+      }
+      public Builder clearField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field) {
+        return (Builder) super.clearField(field);
+      }
+      public Builder clearOneof(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.OneofDescriptor 
oneof) {
+        return (Builder) super.clearOneof(oneof);
+      }
+      public Builder setRepeatedField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field,
+          int index, Object value) {
+        return (Builder) super.setRepeatedField(field, index, value);
+      }
+      public Builder addRepeatedField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field,
+          Object value) {
+        return (Builder) super.addRepeatedField(field, value);
+      }
+      public Builder 
mergeFrom(org.apache.hadoop.hbase.shaded.com.google.protobuf.Message other) {
+        if (other instanceof 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus) 
{
+          return 
mergeFrom((org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder 
mergeFrom(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus
 other) {
+        if (other == 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.getDefaultInstance())
 return this;
+        if (other.hasPolicy()) {
+          setPolicy(other.getPolicy());
+        }
+        if (other.hasInViolation()) {
+          setInViolation(other.getInViolation());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      public Builder mergeFrom(
+          org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+          throws java.io.IOException {
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch 
(org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 e) {
+          parsedMessage = 
(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus)
 e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      private int policy_ = 1;
+      /**
+       * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+       */
+      public boolean hasPolicy() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+       */
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy
 getPolicy() {
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy
 result = 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy.valueOf(policy_);
+        return result == null ? 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy.DISABLE
 : result;
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+       */
+      public Builder 
setPolicy(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceViolationPolicy
 value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000001;
+        policy_ = value.getNumber();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceViolationPolicy policy = 1;</code>
+       */
+      public Builder clearPolicy() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        policy_ = 1;
+        onChanged();
+        return this;
+      }
+
+      private boolean inViolation_ ;
+      /**
+       * <code>optional bool in_violation = 2;</code>
+       */
+      public boolean hasInViolation() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      /**
+       * <code>optional bool in_violation = 2;</code>
+       */
+      public boolean getInViolation() {
+        return inViolation_;
+      }
+      /**
+       * <code>optional bool in_violation = 2;</code>
+       */
+      public Builder setInViolation(boolean value) {
+        bitField0_ |= 0x00000002;
+        inViolation_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional bool in_violation = 2;</code>
+       */
+      public Builder clearInViolation() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        inViolation_ = false;
+        onChanged();
+        return this;
+      }
+      public final Builder setUnknownFields(
+          final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet 
unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      public final Builder mergeUnknownFields(
+          final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet 
unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:hbase.pb.SpaceQuotaStatus)
+    }
+
+    // @@protoc_insertion_point(class_scope:hbase.pb.SpaceQuotaStatus)
+    private static final 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus();
+    }
+
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    @java.lang.Deprecated public static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<SpaceQuotaStatus>
+        PARSER = new 
org.apache.hadoop.hbase.shaded.com.google.protobuf.AbstractParser<SpaceQuotaStatus>()
 {
+      public SpaceQuotaStatus parsePartialFrom(
+          org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+          throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+          return new SpaceQuotaStatus(input, extensionRegistry);
+      }
+    };
+
+    public static 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<SpaceQuotaStatus> 
parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<SpaceQuotaStatus> 
getParserForType() {
+      return PARSER;
+    }
+
+    public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  public interface SpaceQuotaSnapshotOrBuilder extends
+      // 
@@protoc_insertion_point(interface_extends:hbase.pb.SpaceQuotaSnapshot)
+      org.apache.hadoop.hbase.shaded.com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+     */
+    boolean hasStatus();
+    /**
+     * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+     */
+    
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
getStatus();
+    /**
+     * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+     */
+    
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatusOrBuilder
 getStatusOrBuilder();
+
+    /**
+     * <code>optional uint64 usage = 2;</code>
+     */
+    boolean hasUsage();
+    /**
+     * <code>optional uint64 usage = 2;</code>
+     */
+    long getUsage();
+
+    /**
+     * <code>optional uint64 limit = 3;</code>
+     */
+    boolean hasLimit();
+    /**
+     * <code>optional uint64 limit = 3;</code>
+     */
+    long getLimit();
+  }
+  /**
+   * <pre>
+   * Message stored in the value of hbase:quota table to denote the status of 
a table WRT
+   * the quota applicable to it.
+   * </pre>
+   *
+   * Protobuf type {@code hbase.pb.SpaceQuotaSnapshot}
+   */
+  public  static final class SpaceQuotaSnapshot extends
+      org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3 
implements
+      // 
@@protoc_insertion_point(message_implements:hbase.pb.SpaceQuotaSnapshot)
+      SpaceQuotaSnapshotOrBuilder {
+    // Use SpaceQuotaSnapshot.newBuilder() to construct.
+    private 
SpaceQuotaSnapshot(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<?>
 builder) {
+      super(builder);
+    }
+    private SpaceQuotaSnapshot() {
+      usage_ = 0L;
+      limit_ = 0L;
+    }
+
+    @java.lang.Override
+    public final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SpaceQuotaSnapshot(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      this();
+      int mutable_bitField0_ = 0;
+      
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet.Builder 
unknownFields =
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 10: {
+              
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder
 subBuilder = null;
+              if (((bitField0_ & 0x00000001) == 0x00000001)) {
+                subBuilder = status_.toBuilder();
+              }
+              status_ = 
input.readMessage(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.PARSER,
 extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(status_);
+                status_ = subBuilder.buildPartial();
+              }
+              bitField0_ |= 0x00000001;
+              break;
+            }
+            case 16: {
+              bitField0_ |= 0x00000002;
+              usage_ = input.readUInt64();
+              break;
+            }
+            case 24: {
+              bitField0_ |= 0x00000004;
+              limit_ = input.readUInt64();
+              break;
+            }
+          }
+        }
+      } catch 
(org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaSnapshot_descriptor;
+    }
+
+    protected 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaSnapshot_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot.class,
 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot.Builder.class);
+    }
+
+    private int bitField0_;
+    public static final int STATUS_FIELD_NUMBER = 1;
+    private 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
status_;
+    /**
+     * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+     */
+    public boolean hasStatus() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    /**
+     * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+     */
+    public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
getStatus() {
+      return status_ == null ? 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.getDefaultInstance()
 : status_;
+    }
+    /**
+     * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+     */
+    public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatusOrBuilder
 getStatusOrBuilder() {
+      return status_ == null ? 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.getDefaultInstance()
 : status_;
+    }
+
+    public static final int USAGE_FIELD_NUMBER = 2;
+    private long usage_;
+    /**
+     * <code>optional uint64 usage = 2;</code>
+     */
+    public boolean hasUsage() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    /**
+     * <code>optional uint64 usage = 2;</code>
+     */
+    public long getUsage() {
+      return usage_;
+    }
+
+    public static final int LIMIT_FIELD_NUMBER = 3;
+    private long limit_;
+    /**
+     * <code>optional uint64 limit = 3;</code>
+     */
+    public boolean hasLimit() {
+      return ((bitField0_ & 0x00000004) == 0x00000004);
+    }
+    /**
+     * <code>optional uint64 limit = 3;</code>
+     */
+    public long getLimit() {
+      return limit_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void 
writeTo(org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream 
output)
+                        throws java.io.IOException {
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeMessage(1, getStatus());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeUInt64(2, usage_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        output.writeUInt64(3, limit_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += 
org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, getStatus());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += 
org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(2, usage_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        size += 
org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(3, limit_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot))
 {
+        return super.equals(obj);
+      }
+      
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 other = 
(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot)
 obj;
+
+      boolean result = true;
+      result = result && (hasStatus() == other.hasStatus());
+      if (hasStatus()) {
+        result = result && getStatus()
+            .equals(other.getStatus());
+      }
+      result = result && (hasUsage() == other.hasUsage());
+      if (hasUsage()) {
+        result = result && (getUsage()
+            == other.getUsage());
+      }
+      result = result && (hasLimit() == other.hasLimit());
+      if (hasLimit()) {
+        result = result && (getLimit()
+            == other.getLimit());
+      }
+      result = result && unknownFields.equals(other.unknownFields);
+      return result;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasStatus()) {
+        hash = (37 * hash) + STATUS_FIELD_NUMBER;
+        hash = (53 * hash) + getStatus().hashCode();
+      }
+      if (hasUsage()) {
+        hash = (37 * hash) + USAGE_FIELD_NUMBER;
+        hash = (53 * hash) + 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Internal.hashLong(
+            getUsage());
+      }
+      if (hasLimit()) {
+        hash = (37 * hash) + LIMIT_FIELD_NUMBER;
+        hash = (53 * hash) + 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Internal.hashLong(
+            getLimit());
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString data,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(byte[] data)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(
+        byte[] data,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(
+        java.io.InputStream input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseDelimitedFrom(
+        java.io.InputStream input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parseFrom(
+        org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+        throws java.io.IOException {
+      return 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder 
newBuilder(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.BuilderParent
 parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * <pre>
+     * Message stored in the value of hbase:quota table to denote the status 
of a table WRT
+     * the quota applicable to it.
+     * </pre>
+     *
+     * Protobuf type {@code hbase.pb.SpaceQuotaSnapshot}
+     */
+    public static final class Builder extends
+        
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.Builder<Builder>
 implements
+        // 
@@protoc_insertion_point(builder_implements:hbase.pb.SpaceQuotaSnapshot)
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshotOrBuilder
 {
+      public static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaSnapshot_descriptor;
+      }
+
+      protected 
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaSnapshot_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot.class,
 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot.Builder.class);
+      }
+
+      // Construct using 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.BuilderParent
 parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if 
(org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+          getStatusFieldBuilder();
+        }
+      }
+      public Builder clear() {
+        super.clear();
+        if (statusBuilder_ == null) {
+          status_ = null;
+        } else {
+          statusBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        usage_ = 0L;
+        bitField0_ = (bitField0_ & ~0x00000002);
+        limit_ = 0L;
+        bitField0_ = (bitField0_ & ~0x00000004);
+        return this;
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.internal_static_hbase_pb_SpaceQuotaSnapshot_descriptor;
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 getDefaultInstanceForType() {
+        return 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot.getDefaultInstance();
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 build() {
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 buildPartial() {
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 result = new 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        if (statusBuilder_ == null) {
+          result.status_ = status_;
+        } else {
+          result.status_ = statusBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        result.usage_ = usage_;
+        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
+          to_bitField0_ |= 0x00000004;
+        }
+        result.limit_ = limit_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder clone() {
+        return (Builder) super.clone();
+      }
+      public Builder setField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field,
+          Object value) {
+        return (Builder) super.setField(field, value);
+      }
+      public Builder clearField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field) {
+        return (Builder) super.clearField(field);
+      }
+      public Builder clearOneof(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.OneofDescriptor 
oneof) {
+        return (Builder) super.clearOneof(oneof);
+      }
+      public Builder setRepeatedField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field,
+          int index, Object value) {
+        return (Builder) super.setRepeatedField(field, index, value);
+      }
+      public Builder addRepeatedField(
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FieldDescriptor 
field,
+          Object value) {
+        return (Builder) super.addRepeatedField(field, value);
+      }
+      public Builder 
mergeFrom(org.apache.hadoop.hbase.shaded.com.google.protobuf.Message other) {
+        if (other instanceof 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot)
 {
+          return 
mergeFrom((org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder 
mergeFrom(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 other) {
+        if (other == 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot.getDefaultInstance())
 return this;
+        if (other.hasStatus()) {
+          mergeStatus(other.getStatus());
+        }
+        if (other.hasUsage()) {
+          setUsage(other.getUsage());
+        }
+        if (other.hasLimit()) {
+          setLimit(other.getLimit());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      public Builder mergeFrom(
+          org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+          throws java.io.IOException {
+        
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch 
(org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 e) {
+          parsedMessage = 
(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot)
 e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      private 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
status_ = null;
+      private 
org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
+          
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus, 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder,
 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatusOrBuilder>
 statusBuilder_;
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public boolean hasStatus() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus 
getStatus() {
+        if (statusBuilder_ == null) {
+          return status_ == null ? 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.getDefaultInstance()
 : status_;
+        } else {
+          return statusBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public Builder 
setStatus(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus
 value) {
+        if (statusBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          status_ = value;
+          onChanged();
+        } else {
+          statusBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public Builder setStatus(
+          
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder
 builderForValue) {
+        if (statusBuilder_ == null) {
+          status_ = builderForValue.build();
+          onChanged();
+        } else {
+          statusBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public Builder 
mergeStatus(org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus
 value) {
+        if (statusBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) == 0x00000001) &&
+              status_ != null &&
+              status_ != 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.getDefaultInstance())
 {
+            status_ =
+              
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.newBuilder(status_).mergeFrom(value).buildPartial();
+          } else {
+            status_ = value;
+          }
+          onChanged();
+        } else {
+          statusBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000001;
+        return this;
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public Builder clearStatus() {
+        if (statusBuilder_ == null) {
+          status_ = null;
+          onChanged();
+        } else {
+          statusBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder
 getStatusBuilder() {
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return getStatusFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatusOrBuilder
 getStatusOrBuilder() {
+        if (statusBuilder_ != null) {
+          return statusBuilder_.getMessageOrBuilder();
+        } else {
+          return status_ == null ?
+              
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.getDefaultInstance()
 : status_;
+        }
+      }
+      /**
+       * <code>optional .hbase.pb.SpaceQuotaStatus status = 1;</code>
+       */
+      private 
org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
+          
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus, 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder,
 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatusOrBuilder>
+          getStatusFieldBuilder() {
+        if (statusBuilder_ == null) {
+          statusBuilder_ = new 
org.apache.hadoop.hbase.shaded.com.google.protobuf.SingleFieldBuilderV3<
+              
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus, 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatus.Builder,
 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaStatusOrBuilder>(
+                  getStatus(),
+                  getParentForChildren(),
+                  isClean());
+          status_ = null;
+        }
+        return statusBuilder_;
+      }
+
+      private long usage_ ;
+      /**
+       * <code>optional uint64 usage = 2;</code>
+       */
+      public boolean hasUsage() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      /**
+       * <code>optional uint64 usage = 2;</code>
+       */
+      public long getUsage() {
+        return usage_;
+      }
+      /**
+       * <code>optional uint64 usage = 2;</code>
+       */
+      public Builder setUsage(long value) {
+        bitField0_ |= 0x00000002;
+        usage_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint64 usage = 2;</code>
+       */
+      public Builder clearUsage() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        usage_ = 0L;
+        onChanged();
+        return this;
+      }
+
+      private long limit_ ;
+      /**
+       * <code>optional uint64 limit = 3;</code>
+       */
+      public boolean hasLimit() {
+        return ((bitField0_ & 0x00000004) == 0x00000004);
+      }
+      /**
+       * <code>optional uint64 limit = 3;</code>
+       */
+      public long getLimit() {
+        return limit_;
+      }
+      /**
+       * <code>optional uint64 limit = 3;</code>
+       */
+      public Builder setLimit(long value) {
+        bitField0_ |= 0x00000004;
+        limit_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint64 limit = 3;</code>
+       */
+      public Builder clearLimit() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        limit_ = 0L;
+        onChanged();
+        return this;
+      }
+      public final Builder setUnknownFields(
+          final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet 
unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      public final Builder mergeUnknownFields(
+          final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnknownFieldSet 
unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:hbase.pb.SpaceQuotaSnapshot)
+    }
+
+    // @@protoc_insertion_point(class_scope:hbase.pb.SpaceQuotaSnapshot)
+    private static final 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot();
+    }
+
+    public static 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    @java.lang.Deprecated public static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<SpaceQuotaSnapshot>
+        PARSER = new 
org.apache.hadoop.hbase.shaded.com.google.protobuf.AbstractParser<SpaceQuotaSnapshot>()
 {
+      public SpaceQuotaSnapshot parsePartialFrom(
+          org.apache.hadoop.hbase.shaded.com.google.protobuf.CodedInputStream 
input,
+          
org.apache.hadoop.hbase.shaded.com.google.protobuf.ExtensionRegistryLite 
extensionRegistry)
+          throws 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException
 {
+          return new SpaceQuotaSnapshot(input, extensionRegistry);
+      }
+    };
+
+    public static 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<SpaceQuotaSnapshot> 
parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Parser<SpaceQuotaSnapshot> 
getParserForType() {
+      return PARSER;
+    }
+
+    public 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuotaSnapshot
 getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
   private static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
     internal_static_hbase_pb_TimedQuota_descriptor;
   private static final
@@ -6053,6 +7391,16 @@ public final class QuotaProtos {
   private static final
     
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_hbase_pb_SpaceLimitRequest_fieldAccessorTable;
+  private static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+    internal_static_hbase_pb_SpaceQuotaStatus_descriptor;
+  private static final
+    
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_hbase_pb_SpaceQuotaStatus_fieldAccessorTable;
+  private static final 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.Descriptor
+    internal_static_hbase_pb_SpaceQuotaSnapshot_descriptor;
+  private static final
+    
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_hbase_pb_SpaceQuotaSnapshot_fieldAccessorTable;
 
   public static 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FileDescriptor
       getDescriptor() {
@@ -6082,16 +7430,20 @@ public final class QuotaProtos {
       "limit\030\001 \001(\004\0228\n\020violation_policy\030\002 
\001(\0162\036." +
       "hbase.pb.SpaceViolationPolicy\"8\n\021SpaceLi" +
       "mitRequest\022#\n\005quota\030\001 \001(\0132\024.hbase.pb.Spa",
-      "ceQuota*&\n\nQuotaScope\022\013\n\007CLUSTER\020\001\022\013\n\007MA" +
-      "CHINE\020\002*v\n\014ThrottleType\022\022\n\016REQUEST_NUMBE" +
-      
"R\020\001\022\020\n\014REQUEST_SIZE\020\002\022\020\n\014WRITE_NUMBER\020\003\022"
 +
-      
"\016\n\nWRITE_SIZE\020\004\022\017\n\013READ_NUMBER\020\005\022\r\n\tREAD" +
-      
"_SIZE\020\006*$\n\tQuotaType\022\014\n\010THROTTLE\020\001\022\t\n\005SP" +
-      "ACE\020\002*]\n\024SpaceViolationPolicy\022\013\n\007DISABLE" +
-      "\020\001\022\031\n\025NO_WRITES_COMPACTIONS\020\002\022\r\n\tNO_WRIT" +
-      "ES\020\003\022\016\n\nNO_INSERTS\020\004BH\n1org.apache.hadoo" +
-      "p.hbase.shaded.protobuf.generatedB\013Quota" +
-      "ProtosH\001\210\001\001\240\001\001"
+      "ceQuota\"X\n\020SpaceQuotaStatus\022.\n\006policy\030\001 " +
+      "\001(\0162\036.hbase.pb.SpaceViolationPolicy\022\024\n\014i" +
+      "n_violation\030\002 \001(\010\"^\n\022SpaceQuotaSnapshot\022" +
+      "*\n\006status\030\001 \001(\0132\032.hbase.pb.SpaceQuotaSta" +
+      "tus\022\r\n\005usage\030\002 \001(\004\022\r\n\005limit\030\003 
\001(\004*&\n\nQuo" +
+      
"taScope\022\013\n\007CLUSTER\020\001\022\013\n\007MACHINE\020\002*v\n\014Thr" +
+      "ottleType\022\022\n\016REQUEST_NUMBER\020\001\022\020\n\014REQUEST" +
+      
"_SIZE\020\002\022\020\n\014WRITE_NUMBER\020\003\022\016\n\nWRITE_SIZE\020" +
+      
"\004\022\017\n\013READ_NUMBER\020\005\022\r\n\tREAD_SIZE\020\006*$\n\tQuo" +
+      
"taType\022\014\n\010THROTTLE\020\001\022\t\n\005SPACE\020\002*]\n\024Space",
+      "ViolationPolicy\022\013\n\007DISABLE\020\001\022\031\n\025NO_WRITE" +
+      "S_COMPACTIONS\020\002\022\r\n\tNO_WRITES\020\003\022\016\n\nNO_INS" +
+      "ERTS\020\004BH\n1org.apache.hadoop.hbase.shaded" +
+      ".protobuf.generatedB\013QuotaProtosH\001\210\001\001\240\001\001"
     };
     
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner
 assigner =
         new 
org.apache.hadoop.hbase.shaded.com.google.protobuf.Descriptors.FileDescriptor.  
  InternalDescriptorAssigner() {
@@ -6148,6 +7500,18 @@ public final class QuotaProtos {
       
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_hbase_pb_SpaceLimitRequest_descriptor,
         new java.lang.String[] { "Quota", });
+    internal_static_hbase_pb_SpaceQuotaStatus_descriptor =
+      getDescriptor().getMessageTypes().get(7);
+    internal_static_hbase_pb_SpaceQuotaStatus_fieldAccessorTable = new
+      
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_hbase_pb_SpaceQuotaStatus_descriptor,
+        new java.lang.String[] { "Policy", "InViolation", });
+    internal_static_hbase_pb_SpaceQuotaSnapshot_descriptor =
+      getDescriptor().getMessageTypes().get(8);
+    internal_static_hbase_pb_SpaceQuotaSnapshot_fieldAccessorTable = new
+      
org.apache.hadoop.hbase.shaded.com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_hbase_pb_SpaceQuotaSnapshot_descriptor,
+        new java.lang.String[] { "Status", "Usage", "Limit", });
     
org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.getDescriptor();
   }
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/66cf4809/hbase-protocol-shaded/src/main/protobuf/Quota.proto
----------------------------------------------------------------------
diff --git a/hbase-protocol-shaded/src/main/protobuf/Quota.proto 
b/hbase-protocol-shaded/src/main/protobuf/Quota.proto
index b53219a..5ea1ddb 100644
--- a/hbase-protocol-shaded/src/main/protobuf/Quota.proto
+++ b/hbase-protocol-shaded/src/main/protobuf/Quota.proto
@@ -95,3 +95,18 @@ message SpaceQuota {
 message SpaceLimitRequest {
   optional SpaceQuota quota = 1;
 }
+
+// Represents the state of a quota on a table. Either the quota is not in 
violation
+// or it is in violatino there is a violation policy which should be in effect.
+message SpaceQuotaStatus {
+  optional SpaceViolationPolicy policy = 1;
+  optional bool in_violation = 2;
+}
+
+// Message stored in the value of hbase:quota table to denote the status of a 
table WRT
+// the quota applicable to it.
+message SpaceQuotaSnapshot {
+  optional SpaceQuotaStatus status = 1;
+  optional uint64 usage = 2;
+  optional uint64 limit = 3;
+}

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