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Posted to commits@usergrid.apache.org by to...@apache.org on 2014/08/05 00:15:04 UTC

[11/11] git commit: Work in progress. Added testing

Work in progress.  Added testing


Project: http://git-wip-us.apache.org/repos/asf/incubator-usergrid/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-usergrid/commit/cd043b14
Tree: http://git-wip-us.apache.org/repos/asf/incubator-usergrid/tree/cd043b14
Diff: http://git-wip-us.apache.org/repos/asf/incubator-usergrid/diff/cd043b14

Branch: refs/heads/USERGRID-188
Commit: cd043b143f5f467679befb4af0659448a5a17abb
Parents: 3ecd603
Author: Todd Nine <tn...@apigee.com>
Authored: Wed Jul 23 10:39:35 2014 -0600
Committer: Todd Nine <tn...@apigee.com>
Committed: Wed Jul 23 10:39:35 2014 -0600

----------------------------------------------------------------------
 .../impl/shard/EdgeShardSerialization.java      |   12 +-
 .../graph/serialization/impl/shard/Shard.java   |   27 +-
 .../impl/shard/ShardEntryGroup.java             |  199 ++--
 .../impl/shard/impl/EdgeSearcher.java           |    2 +-
 .../shard/impl/EdgeShardSerializationImpl.java  |   35 +-
 .../shard/impl/NodeShardAllocationImpl.java     |    8 +-
 .../impl/shard/impl/NodeShardCacheImpl.java     |    2 +-
 .../shard/impl/ShardEntryGroupIterator.java     |    2 -
 .../impl/shard/EdgeShardSerializationTest.java  |  119 +-
 .../impl/shard/NodeShardAllocationTest.java     | 1104 +++++++++---------
 .../impl/shard/ShardEntryGroupTest.java         |  129 +-
 11 files changed, 891 insertions(+), 748 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerialization.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerialization.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerialization.java
index e91dda3..1f15107 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerialization.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerialization.java
@@ -40,11 +40,11 @@ public interface EdgeShardSerialization extends Migration{
      * @param scope The scope to write
      * @param nodeId The id in the edge
      * @param nodeType Is the node a source or target node
-     * @param shard The next time to write
-     * @param timestamp the timestamp to set on the shard
+     * @param shard The shard to write
      * @param types The types to write to.  Can be edge type, or edgeType+id type
      */
-    public MutationBatch writeEdgeMeta(ApplicationScope scope, Id nodeId, NodeType nodeType, long shard, long timestamp,  String... types);
+    public MutationBatch writeShardMeta( ApplicationScope scope, Id nodeId, NodeType nodeType, Shard shard,
+                                         String... types );
 
     /**
      * Get an iterator of all meta data and types.  Returns a range from High to low
@@ -55,7 +55,8 @@ public interface EdgeShardSerialization extends Migration{
      * @param types The types to use
      * @return
      */
-    public Iterator<Shard> getEdgeMetaData(ApplicationScope scope, Id nodeId, NodeType nodeType, Optional<Shard> start,  String... types);
+    public Iterator<Shard> getShardMetaData( ApplicationScope scope, Id nodeId, NodeType nodeType,
+                                             Optional<Shard> start, String... types );
 
     /**
      * Remove the shard from the edge meta data from the types.
@@ -67,6 +68,7 @@ public interface EdgeShardSerialization extends Migration{
      * @param types
      * @return
      */
-    public MutationBatch removeEdgeMeta(ApplicationScope scope, Id nodeId, NodeType nodeType, long shard, String... types);
+    public MutationBatch removeShardMeta( ApplicationScope scope, Id nodeId, NodeType nodeType, Shard shard,
+                                          String... types );
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/Shard.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/Shard.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/Shard.java
index f95699b..4b58224 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/Shard.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/Shard.java
@@ -23,11 +23,13 @@ public class Shard implements Comparable<Shard> {
 
     private final long shardIndex;
     private final long createdTime;
+    private final boolean compacted;
 
 
-    public Shard( final long shardIndex, final long createdTime ) {
+    public Shard( final long shardIndex, final long createdTime, final boolean compacted ) {
         this.shardIndex = shardIndex;
         this.createdTime = createdTime;
+        this.compacted = compacted;
     }
 
 
@@ -48,9 +50,15 @@ public class Shard implements Comparable<Shard> {
 
 
     /**
+     * Return true if this shard has been compacted
+     */
+    public boolean isCompacted() {
+        return compacted;
+    }
+
+
+    /**
      * Compare the shards based on the timestamp first, then the created time second
-     * @param o
-     * @return
      */
     @Override
     public int compareTo( final Shard o ) {
@@ -70,6 +78,19 @@ public class Shard implements Comparable<Shard> {
                 return -1;
             }
 
+            else {
+
+                //kind of arbitrary compacted takes precedence
+                if ( compacted && !o.compacted ) {
+                    return 1;
+                }
+
+                else if ( !compacted && o.compacted ){
+                    return -1;
+                }
+
+
+            }
             return 0;
         }
 

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroup.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroup.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroup.java
index 6bd1421..ebb037e 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroup.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroup.java
@@ -21,192 +21,173 @@ package org.apache.usergrid.persistence.graph.serialization.impl.shard;
 
 import java.util.Collection;
 import java.util.Collections;
-import java.util.Comparator;
-import java.util.TreeMap;
+import java.util.TreeSet;
 
 
 /**
- * There are cases where we need to read or write to more than 1 shard.  This object encapsulates
- * a set of shards that should be written to and read from.  All reads should combine the data sets from
- * all shards in the group, and writes should be written to each shard.  Once the shard can safely be compacted
- * a background process should be triggered to remove additional shards and make seeks faster.  This multiread/write
- * should only occur during the time period of the delta (in milliseconds), after which the next read will asynchronously compact the
- * shards into a single shard.
+ * There are cases where we need to read or write to more than 1 shard.  This object encapsulates a set of shards that
+ * should be written to and read from.  All reads should combine the data sets from all shards in the group, and writes
+ * should be written to each shard.  Once the shard can safely be compacted a background process should be triggered to
+ * remove additional shards and make seeks faster.  This multiread/write should only occur during the time period of the
+ * delta (in milliseconds), after which the next read will asynchronously compact the shards into a single shard.
  */
 public class ShardEntryGroup {
 
 
-    private TreeMap<Long, Shard> shards;
-
-    private Shard minShardByIndex;
+    private TreeSet<Shard> shards;
 
     private final long delta;
 
-    private Shard neighbor;
+    private Shard compactionTarget;
+
+
+    private long maxCreatedTime;
 
 
     /**
      * The max delta we accept in milliseconds for create time to be considered a member of this group
-     * @param delta
      */
     public ShardEntryGroup( final long delta ) {
         this.delta = delta;
-        this.shards = new TreeMap<>( ShardTimeComparator.INSTANCE );
+        this.shards = new TreeSet<>();
+        this.maxCreatedTime = 0;
     }
 
 
     /**
-     * Only add a shard if the created timestamp is within the delta of one of the entries
-     * @param shard
-     * @return
+     * Only add a shard if it is within the rules require to meet a group.  The rules are outlined below.
+     *
+     * Case 1)  First shard in the group, always added
+     *
+     * Case 2) Shard is unmerged, it should be included with it's peers since other nodes may not have it yet
+     *
+     * Case 3) The list contains only non compacted shards, and this is last and and merged.  It is considered a lower
+     * bound
      */
-    public boolean addShard(final Shard shard){
-
-        //compare the time and see if it falls withing any of the elements based on their timestamp
-        final long shardCreateTime = shard.getCreatedTime();
-
-        final Long lessThanKey = shards.floorKey( shardCreateTime );
-
-        final Long greaterThanKey = shards.ceilingKey( shardCreateTime );
-
+    public boolean addShard( final Shard shard ) {
 
-        final long lessThanDelta = shardCreateTime - lessThanKey;
+        //shards can be ar
 
-        final long greaterThanDelta = greaterThanKey - shardCreateTime;
-
-        if(lessThanDelta < delta || greaterThanDelta < delta ){
-            this.shards.put( shardCreateTime, shard );
+        //compare the time and see if it falls withing any of the elements based on their timestamp
+        //        final long shardCreateTime = shard.getCreatedTime();
+
+        //        final Long lessThanKey = shards.floorKey( shardCreateTime );
+        //
+        //        final Long greaterThanKey = shards.ceilingKey( shardCreateTime );
+        //
+        //        //first into the set
+        //        if ( lessThanKey == null && greaterThanKey == null ) {
+        //            addShardInternal( shard );
+        //            return true;
+        //        }
+        //
+        //        if ( lessThanKey != null && shardCreateTime - lessThanKey < delta ) {
+        //            addShardInternal( shard );
+        //            return true;
+        //        }
+        //
+        //
+        //        if ( greaterThanKey != null && greaterThanKey - shardCreateTime < delta ) {
+        //            addShardInternal( shard );
+        //
+        //            return true;
+        //        }
+
+        if ( shards.size() == 0 ) {
+            addShardInternal( shard );
+            return true;
+        }
 
-            if(shard.compareTo( minShardByIndex ) < 0){
-                minShardByIndex = shard;
-            }
 
+        //shard is not compacted, or it's predecessor isn't, we should include it in this group
+        if ( !shard.isCompacted() || !shards.last().isCompacted() ) {
+            addShardInternal( shard );
             return true;
         }
 
+
         return false;
     }
 
 
     /**
-     * Add the n-1 shard to the set.  This is required, because nodes that have not yet updated their
-     * shard caches can be writing reading to the n-1 node only
-     *
-     * @param shard The shard to possibly add as a neighbor
-     * @return True if this shard as added as a neighbor, false otherwise
+     * Add the shard and set the min created time
      */
-    public boolean setNeighbor( final Shard shard ){
+    private void addShardInternal( final Shard shard ) {
+        shards.add( shard );
 
-        //not in the transition state don't set the neighbor, it will slow seeks down
-        if(!isRolling()){
-            return false;
-        }
+        maxCreatedTime = Math.max( maxCreatedTime, shard.getCreatedTime() );
 
+        //it's not a compacted shard, so it's a candidate to be the compaction target
+        if ( !shard.isCompacted() && ( compactionTarget == null || shard.compareTo( compactionTarget ) < 0 ) ) {
+            compactionTarget = shard;
+        }
+    }
 
-        neighbor = shard;
-        this.shards.put( shard.getCreatedTime(), shard );
-        return true;
 
+    /**
+     * Get the entries that we should read from.
+     */
+    public Collection<Shard> getReadShards() {
+        return shards;
     }
 
 
     /**
-     * Get the entries that we should read from.
-     *
-     * @return
+     * Get the entries, with the max shard time being first. We write to all shards until they're migrated
      */
-    public Collection<Shard> getReadShards(final long currentTime) {
+    public Collection<Shard> getWriteShards( long currentTime ) {
 
         /**
-         * The shards are still rolling (I.E can't be compacted)
+         * The shards in this set can be combined, we should only write to the compaction target to avoid
+         * adding data to other shards
          */
-        if(needsCompaction( currentTime )){
-            return shards.values();
+        if ( shouldCompact( currentTime ) ) {
+            return Collections.singleton( compactionTarget );
         }
 
-        return Collections.singleton(minShardByIndex);
-    }
-
 
-    /**
-     * Get the entries, with the max shard time being first. We write to all shards until they're migrated
-     *
-     * @return
-     */
-    public Collection<Shard> getWriteShards() {
-        return shards.values();
+        return shards;
     }
 
 
     /**
      * Get the shard all compactions should write to
-     * @return
      */
-    public Shard getMergeTarget(){
-        return minShardByIndex;
+    public Shard getCompactionTarget() {
+        return compactionTarget;
     }
 
 
     /**
      * Returns true if the newest created shard is path the currentTime - delta
+     *
      * @param currentTime The current system time in milliseconds
+     *
      * @return True if these shards can safely be combined into a single shard, false otherwise
      */
-    public boolean needsCompaction(final long currentTime){
+    public boolean shouldCompact( final long currentTime ) {
 
         /**
          * We don't have enough shards to compact, ignore
          */
-        if(shards.size() < 2){
+        if ( shards.size() < 2 ) {
             return false;
         }
 
-
-        final long maxTimestamp = shards.lastKey();
-
-
-        return currentTime - delta > maxTimestamp;
-    }
-
-
-    /**
-     * Return true if the shard is rolling.  If this is the case, we want to include the n-1 entry, since everyone
-     * may not yet have it until compaction is safe to perform
-     * @return
-     */
-    private boolean isRolling(){
-       return shards.size() > 1;
+        return currentTime - delta > maxCreatedTime;
     }
 
 
     /**
      * Return true if this shard can be deleted AFTER all of the data in it has been moved
-     * @param shard
-     * @return
      */
-    public boolean canBeDeleted(final Shard shard){
+    public boolean canBeDeleted( final Shard shard ) {
         //if we're a neighbor shard (n-1) or the target compaction shard, we can't be deleted
-        //we purposefully use .equals here, since 2 shards might have the same index with different timestamps (unlikely but could happen)
-        if(shard == neighbor ||  getMergeTarget().equals( shard )){
-            return false;
-        }
-
-        return true;
-    }
-
-    /**
-     * Compares 2 shards based on create time.  Does not handle nulls intentionally
-     */
-    private static final class ShardTimeComparator implements Comparator<Long> {
-
-        public static final ShardTimeComparator INSTANCE = new ShardTimeComparator();
-
-
-        @Override
-        public int compare( final Long o1, final Long o2 ) {
-            return o1.compareTo( o2 );
-        }
+        //we purposefully use shard index comparison over .equals here, since 2 shards might have the same index with
+        // different timestamps
+        // (unlikely but could happen)
+        return !shard.isCompacted() && ( compactionTarget != null && compactionTarget.getShardIndex() != shard
+                .getShardIndex() );
     }
-
-
 }

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeSearcher.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeSearcher.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeSearcher.java
index d0e642c..8b39115 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeSearcher.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeSearcher.java
@@ -52,7 +52,7 @@ public abstract class EdgeSearcher<R, C, T> implements ColumnParser<C, T>, Itera
          * TODO Shard fix this
          */
         return ScopedRowKey
-                .fromKey( scope, generateRowKey( shards.next().getMergeTarget().getShardIndex() ) );
+                .fromKey( scope, generateRowKey( shards.next().getCompactionTarget().getShardIndex() ) );
     }
 
 

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeShardSerializationImpl.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeShardSerializationImpl.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeShardSerializationImpl.java
index 745e02a..b6f65f9 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeShardSerializationImpl.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/EdgeShardSerializationImpl.java
@@ -66,12 +66,9 @@ public class EdgeShardSerializationImpl implements EdgeShardSerialization {
      */
     private static final MultiTennantColumnFamily<ApplicationScope, DirectedRowKey, Long> EDGE_SHARDS =
             new MultiTennantColumnFamily<>( "Edge_Shards",
-                    new OrganizationScopedRowKeySerializer<>( new DirectedEdgeRowKeySerializer() ),
-                    LongSerializer.get() );
+                    new OrganizationScopedRowKeySerializer<>( new EdgeShardRowKeySerializer() ), LongSerializer.get() );
 
 
-    private static final byte HOLDER = 0x00;
-
     private static final ShardColumnParser COLUMN_PARSER = new ShardColumnParser();
 
 
@@ -90,13 +87,14 @@ public class EdgeShardSerializationImpl implements EdgeShardSerialization {
 
 
     @Override
-    public MutationBatch writeEdgeMeta( final ApplicationScope scope, final Id nodeId, final NodeType nodeType,
-                                        final long shard, final long timestamp, final String... types ) {
-
+    public MutationBatch writeShardMeta( final ApplicationScope scope, final Id nodeId, final NodeType nodeType,
+                                         final Shard shard, final String... types ) {
 
         ValidationUtils.validateApplicationScope( scope );
         ValidationUtils.verifyIdentity( nodeId );
-        Preconditions.checkArgument( shard > -1, "shardId must be greater than -1" );
+        Preconditions.checkNotNull( shard );
+        Preconditions.checkArgument( shard.getShardIndex() > -1, "shardid must be greater than -1" );
+        Preconditions.checkArgument( shard.getCreatedTime() > -1, "createdTime must be greater than -1" );
         Preconditions.checkNotNull( types );
 
         final DirectedRowKey key = new DirectedRowKey( nodeId, nodeType, types );
@@ -105,15 +103,16 @@ public class EdgeShardSerializationImpl implements EdgeShardSerialization {
 
         final MutationBatch batch = keyspace.prepareMutationBatch();
 
-        batch.withTimestamp( timestamp ).withRow( EDGE_SHARDS, rowKey ).putColumn( shard, HOLDER );
+        batch.withTimestamp( shard.getCreatedTime() ).withRow( EDGE_SHARDS, rowKey )
+             .putColumn( shard.getShardIndex(), shard.isCompacted() );
 
         return batch;
     }
 
 
     @Override
-    public Iterator<Shard> getEdgeMetaData( final ApplicationScope scope, final Id nodeId, final NodeType nodeType,
-                                            final Optional<Shard> start, final String... types ) {
+    public Iterator<Shard> getShardMetaData( final ApplicationScope scope, final Id nodeId, final NodeType nodeType,
+                                             final Optional<Shard> start, final String... types ) {
         /**
          * If the edge is present, we need to being seeking from this
          */
@@ -139,12 +138,14 @@ public class EdgeShardSerializationImpl implements EdgeShardSerialization {
 
 
     @Override
-    public MutationBatch removeEdgeMeta( final ApplicationScope scope, final Id nodeId, final NodeType nodeType,
-                                         final long shard, final String... types ) {
+    public MutationBatch removeShardMeta( final ApplicationScope scope, final Id nodeId, final NodeType nodeType,
+                                          final Shard shard, final String... types ) {
 
         ValidationUtils.validateApplicationScope( scope );
         ValidationUtils.verifyIdentity( nodeId );
-        Preconditions.checkArgument( shard > -1, "shard must be greater than -1" );
+        Preconditions.checkNotNull( shard );
+        Preconditions.checkArgument( shard.getShardIndex() > -1, "shardid must be greater than -1" );
+        Preconditions.checkArgument( shard.getCreatedTime() > -1, "createdTime must be greater than -1" );
         Preconditions.checkNotNull( types );
 
         final DirectedRowKey key = new DirectedRowKey( nodeId, nodeType, types );
@@ -153,7 +154,7 @@ public class EdgeShardSerializationImpl implements EdgeShardSerialization {
 
         final MutationBatch batch = keyspace.prepareMutationBatch();
 
-        batch.withRow( EDGE_SHARDS, rowKey ).deleteColumn( shard );
+        batch.withRow( EDGE_SHARDS, rowKey ).deleteColumn( shard.getShardIndex() );
 
         return batch;
     }
@@ -186,7 +187,7 @@ public class EdgeShardSerializationImpl implements EdgeShardSerialization {
     }
 
 
-    private static class DirectedEdgeRowKeySerializer implements CompositeFieldSerializer<DirectedRowKey> {
+    private static class EdgeShardRowKeySerializer implements CompositeFieldSerializer<DirectedRowKey> {
 
         private static final IdRowCompositeSerializer ID_SER = IdRowCompositeSerializer.get();
 
@@ -247,7 +248,7 @@ public class EdgeShardSerializationImpl implements EdgeShardSerialization {
 
         @Override
         public Shard parseColumn( final Column<Long> column ) {
-            return new Shard( column.getName(), column.getTimestamp() );
+            return new Shard( column.getName(), column.getTimestamp(), column.getBooleanValue() );
         }
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardAllocationImpl.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardAllocationImpl.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardAllocationImpl.java
index dbf8382..6accf91 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardAllocationImpl.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardAllocationImpl.java
@@ -88,7 +88,7 @@ public class NodeShardAllocationImpl implements NodeShardAllocation {
                                                 final Optional<Shard> maxShardId, final String... edgeTypes ) {
 
         final Iterator<Shard> existingShards =
-                edgeShardSerialization.getEdgeMetaData( scope, nodeId, nodeType, maxShardId, edgeTypes );
+                edgeShardSerialization.getShardMetaData( scope, nodeId, nodeType, maxShardId, edgeTypes );
 
         return new ShardEntryGroupIterator( existingShards, graphFig.getShardMinDelta() );
     }
@@ -104,7 +104,7 @@ public class NodeShardAllocationImpl implements NodeShardAllocation {
          * latest
          */
         final Iterator<Shard> maxShards =
-                edgeShardSerialization.getEdgeMetaData( scope, nodeId, nodeType, Optional.<Shard>absent(), edgeType );
+                edgeShardSerialization.getShardMetaData( scope, nodeId, nodeType, Optional.<Shard>absent(), edgeType );
 
 
         //if the first shard has already been allocated, do nothing.
@@ -204,10 +204,12 @@ public class NodeShardAllocationImpl implements NodeShardAllocation {
 
         final long createTimestamp = timeService.getCurrentTime();
 
+        final Shard shard = new Shard(marked.getTimestamp(), createTimestamp, false);
+
 
         try {
             this.edgeShardSerialization
-                    .writeEdgeMeta( scope, nodeId, nodeType, marked.getTimestamp(), createTimestamp, edgeType )
+                    .writeShardMeta( scope, nodeId, nodeType, shard, edgeType )
                     .execute();
         }
         catch ( ConnectionException e ) {

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardCacheImpl.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardCacheImpl.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardCacheImpl.java
index ad30dc6..6ac83cf 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardCacheImpl.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/NodeShardCacheImpl.java
@@ -249,7 +249,7 @@ public class NodeShardCacheImpl implements NodeShardCache {
             this.shards = new TreeMap<>(ShardEntriesComparator.INSTANCE);
 
             for ( ShardEntryGroup shard : IterableUtil.wrap( shards ) ) {
-                this.shards.put(shard.getMergeTarget().getShardIndex() , shard );
+                this.shards.put(shard.getCompactionTarget().getShardIndex() , shard );
             }
         }
 

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/ShardEntryGroupIterator.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/ShardEntryGroupIterator.java b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/ShardEntryGroupIterator.java
index 39e198e..8e69be4 100644
--- a/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/ShardEntryGroupIterator.java
+++ b/stack/corepersistence/graph/src/main/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/impl/ShardEntryGroupIterator.java
@@ -91,8 +91,6 @@ public class ShardEntryGroupIterator implements Iterator<ShardEntryGroup> {
             //we can't add this shard to the current group.  Add the group and return.
             next = shardEntryGroup;
 
-            shardEntryGroup.setNeighbor( shard );
-
             sourceIterator.pushback( shard );
         }
     }

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerializationTest.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerializationTest.java b/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerializationTest.java
index 937a51a..00e0164 100644
--- a/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerializationTest.java
+++ b/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/EdgeShardSerializationTest.java
@@ -29,10 +29,10 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import org.apache.usergrid.persistence.collection.guice.MigrationManagerRule;
+import org.apache.usergrid.persistence.core.cassandra.CassandraRule;
 import org.apache.usergrid.persistence.core.cassandra.ITRunner;
 import org.apache.usergrid.persistence.core.scope.ApplicationScope;
-import org.apache.usergrid.persistence.core.cassandra.CassandraRule;
-import org.apache.usergrid.persistence.collection.guice.MigrationManagerRule;
 import org.apache.usergrid.persistence.graph.guice.TestGraphModule;
 import org.apache.usergrid.persistence.model.entity.Id;
 import org.apache.usergrid.persistence.model.util.UUIDGenerator;
@@ -49,8 +49,8 @@ import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
 
-@RunWith( ITRunner.class )
-@UseModules( { TestGraphModule.class } )
+@RunWith(ITRunner.class)
+@UseModules({ TestGraphModule.class })
 public class EdgeShardSerializationTest {
 
     @ClassRule
@@ -86,67 +86,87 @@ public class EdgeShardSerializationTest {
 
         final Id now = createId( "test" );
 
-        final long slice1 = 1000l;
+        final long timestamp = 10000l;
 
-        final long slice2 = slice1 * 2;
+        final Shard shard1 = new Shard( 1000l, timestamp, false );
 
-        final long slice3 = slice2 * 2;
+        final Shard shard2 = new Shard( shard1.getShardIndex() * 2, timestamp, true );
+
+        final Shard shard3 = new Shard( shard2.getShardIndex() * 2, timestamp, false );
 
-        final long timestamp = 10000l;
 
         String[] types = { "edgeType", "subType" };
 
-        MutationBatch batch = edgeShardSerialization.writeEdgeMeta( scope, now, NodeType.SOURCE, slice1, timestamp, types );
+        MutationBatch batch = edgeShardSerialization.writeShardMeta( scope, now, NodeType.SOURCE, shard1, types );
 
-        batch.mergeShallow( edgeShardSerialization.writeEdgeMeta( scope, now, NodeType.SOURCE, slice2, timestamp, types ) );
+        batch.mergeShallow( edgeShardSerialization.writeShardMeta( scope, now, NodeType.SOURCE, shard2, types ) );
 
-        batch.mergeShallow( edgeShardSerialization.writeEdgeMeta( scope, now, NodeType.SOURCE, slice3, timestamp, types ) );
+        batch.mergeShallow( edgeShardSerialization.writeShardMeta( scope, now, NodeType.SOURCE, shard3, types ) );
 
         batch.execute();
 
 
-        Iterator<Shard> results = edgeShardSerialization.getEdgeMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
+        Iterator<Shard> results =
+                edgeShardSerialization.getShardMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
 
         Shard next = results.next();
 
-        assertEquals( slice3, next.getShardIndex() );
+        assertEquals( shard3, next.getShardIndex() );
+
+        assertEquals( shard3.getCreatedTime(), next.getCreatedTime() );
+
+        assertEquals( shard3.isCompacted(), next.isCompacted() );
 
-        assertEquals( timestamp, next.getCreatedTime());
 
         next = results.next();
 
 
-        assertEquals( slice2, next.getShardIndex() );
+        assertEquals( shard2, next.getShardIndex() );
+
+        assertEquals( shard2.getCreatedTime(), next.getCreatedTime() );
+
+        assertEquals( shard2.isCompacted(), next.isCompacted() );
 
-        assertEquals( timestamp, next.getCreatedTime());
 
         next = results.next();
 
 
-        assertEquals( slice1, next.getShardIndex() );
+        assertEquals( shard1, next.getShardIndex() );
+
+        assertEquals( shard1.getCreatedTime(), next.getCreatedTime() );
 
-        assertEquals( timestamp, next.getCreatedTime());
+        assertEquals( shard1.isCompacted(), next.isCompacted() );
 
         assertFalse( results.hasNext() );
 
         //test we get nothing with the other node type
-        results = edgeShardSerialization.getEdgeMetaData( scope, now, NodeType.TARGET, Optional.<Shard>absent(), types );
+        results =
+                edgeShardSerialization.getShardMetaData( scope, now, NodeType.TARGET, Optional.<Shard>absent(), types );
 
-        assertFalse(results.hasNext());
+        assertFalse( results.hasNext() );
 
 
         //test paging and size
-        results = edgeShardSerialization.getEdgeMetaData( scope, now, NodeType.SOURCE, Optional.of( new Shard( slice2, 0l ) ), types );
+        results = edgeShardSerialization.getShardMetaData( scope, now, NodeType.SOURCE, Optional.of( shard2 ), types );
 
         next = results.next();
 
-        assertEquals( slice2, next.getShardIndex() );
-        assertEquals( timestamp, next.getCreatedTime());
+
+        assertEquals( shard2, next.getShardIndex() );
+
+        assertEquals( shard2.getCreatedTime(), next.getCreatedTime() );
+
+        assertEquals( shard2.isCompacted(), next.isCompacted() );
+
 
         next = results.next();
 
-        assertEquals( slice1, next.getShardIndex() );
-        assertEquals( timestamp, next.getCreatedTime());
+
+        assertEquals( shard1, next.getShardIndex() );
+
+        assertEquals( shard1.getCreatedTime(), next.getCreatedTime() );
+
+        assertEquals( shard1.isCompacted(), next.isCompacted() );
 
 
         assertFalse( results.hasNext() );
@@ -158,57 +178,66 @@ public class EdgeShardSerializationTest {
 
         final Id now = createId( "test" );
 
-        final long slice1 = 1000l;
 
-        final long slice2 = slice1 * 2;
+        final long timestamp = 10000l;
 
-        final long slice3 = slice2 * 2;
+        final Shard shard1 = new Shard( 1000l, timestamp, false );
 
-        final long timestamp = 10000l;
+        final Shard shard2 = new Shard( shard1.getShardIndex() * 2, timestamp, true );
+
+        final Shard shard3 = new Shard( shard2.getShardIndex() * 2, timestamp, false );
 
         String[] types = { "edgeType", "subType" };
 
-        MutationBatch batch = edgeShardSerialization.writeEdgeMeta( scope, now, NodeType.SOURCE, slice1, timestamp, types );
+        MutationBatch batch =
+                edgeShardSerialization.writeShardMeta( scope, now, NodeType.SOURCE, shard1, types );
 
-        batch.mergeShallow( edgeShardSerialization.writeEdgeMeta( scope, now, NodeType.SOURCE, slice2, timestamp,types ) );
+        batch.mergeShallow(
+                edgeShardSerialization.writeShardMeta( scope, now, NodeType.SOURCE, shard2, types ) );
 
-        batch.mergeShallow( edgeShardSerialization.writeEdgeMeta( scope, now, NodeType.SOURCE, slice3, timestamp, types ) );
+        batch.mergeShallow(
+                edgeShardSerialization.writeShardMeta( scope, now, NodeType.SOURCE, shard3, types ) );
 
         batch.execute();
 
 
-        Iterator<Shard> results = edgeShardSerialization.getEdgeMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
+        Iterator<Shard> results =
+                edgeShardSerialization.getShardMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
 
-        assertEquals( slice3, results.next().getShardIndex() );
+        assertEquals( shard3, results.next() );
 
-        assertEquals( slice2, results.next().getShardIndex() );
+        assertEquals( shard2, results.next() );
 
-        assertEquals( slice1, results.next().getShardIndex() );
+        assertEquals( shard1, results.next() );
 
         assertFalse( results.hasNext() );
 
         //test nothing with other type
-        results = edgeShardSerialization.getEdgeMetaData( scope, now, NodeType.TARGET, Optional.<Shard>absent(), types );
+        results =
+                edgeShardSerialization.getShardMetaData( scope, now, NodeType.TARGET, Optional.<Shard>absent(), types );
+
+        assertFalse( results.hasNext() );
 
-        assertFalse(results.hasNext());
 
         //test paging and size
-        edgeShardSerialization.removeEdgeMeta( scope, now, NodeType.SOURCE, slice1, types ).execute();
+        edgeShardSerialization.removeShardMeta( scope, now, NodeType.SOURCE, shard1, types ).execute();
 
-        results = edgeShardSerialization.getEdgeMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
+        results =
+                edgeShardSerialization.getShardMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
 
-        assertEquals( slice3, results.next().getShardIndex() );
+        assertEquals( shard3, results.next().getShardIndex() );
 
-        assertEquals( slice2, results.next().getShardIndex() );
+        assertEquals( shard2, results.next().getShardIndex() );
 
         assertFalse( results.hasNext() );
 
 
-        edgeShardSerialization.removeEdgeMeta( scope, now, NodeType.SOURCE, slice2, types ).execute();
+        edgeShardSerialization.removeShardMeta( scope, now, NodeType.SOURCE, shard2, types ).execute();
 
-        edgeShardSerialization.removeEdgeMeta( scope, now, NodeType.SOURCE, slice3, types ).execute();
+        edgeShardSerialization.removeShardMeta( scope, now, NodeType.SOURCE, shard3, types ).execute();
 
-        results = edgeShardSerialization.getEdgeMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
+        results =
+                edgeShardSerialization.getShardMetaData( scope, now, NodeType.SOURCE, Optional.<Shard>absent(), types );
 
 
         assertFalse( results.hasNext() );

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/NodeShardAllocationTest.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/NodeShardAllocationTest.java b/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/NodeShardAllocationTest.java
index 8c60e2c..0ac7f78 100644
--- a/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/NodeShardAllocationTest.java
+++ b/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/NodeShardAllocationTest.java
@@ -86,556 +86,556 @@ public class NodeShardAllocationTest {
     }
 
 
-    @Test
-    public void minTime() {
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-        final NodeShardApproximation nodeShardCounterSerialization = mock( NodeShardApproximation.class );
-
-
-        final TimeService timeService = mock( TimeService.class );
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardCounterSerialization, timeService, graphFig, keyspace );
-
-
-        final long timeservicetime = System.currentTimeMillis();
-
-        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
-
-        final long expected = timeservicetime - 2 * graphFig.getShardCacheTimeout();
-
-        final long returned = approximation.getMinTime();
-
-        assertEquals( "Correct time was returned", expected, returned );
-    }
-
-
-    @Test
-    public void noShards() {
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-
-        final NodeShardApproximation nodeShardCounterSerialization = mock( NodeShardApproximation.class );
-
-
-        final TimeService timeService = mock( TimeService.class );
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-        final MutationBatch batch = mock( MutationBatch.class );
-
-        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardCounterSerialization, timeService, graphFig, keyspace );
-
-        final Id nodeId = createId( "test" );
-        final String type = "type";
-        final String subType = "subType";
-
-        /**
-         * Mock up returning an empty iterator, our audit shouldn't create a new shard
-         */
-        when( edgeShardSerialization
-                .getEdgeMetaData( same( scope ), same( nodeId ), eq( NodeType.SOURCE ), any( Optional.class ),
-                        same( type ), same( subType ) ) ).thenReturn( Collections.<Shard>emptyList().iterator() );
-
-        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.SOURCE, type, subType );
-
-        assertFalse( "No shard allocated", result );
-    }
-
-
-    @Test
-    public void existingFutureShardSameTime() {
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-        final NodeShardApproximation nodeShardCounterSerialization = mock( NodeShardApproximation.class );
-
-
-        final TimeService timeService = mock( TimeService.class );
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-
-        final MutationBatch batch = mock( MutationBatch.class );
-
-        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
-
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardCounterSerialization, timeService, graphFig, keyspace );
-
-        final Id nodeId = createId( "test" );
-        final String type = "type";
-        final String subType = "subType";
-
-
-        final long timeservicetime = System.currentTimeMillis();
-
-        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
-
-        final Shard futureShard = new Shard( 10000l, timeservicetime );
-
-        /**
-         * Mock up returning a min shard, and a future shard
-         */
-        when( edgeShardSerialization
-                .getEdgeMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
-                        same( type ), same( subType ) ) ).thenReturn( Arrays.asList( futureShard ).iterator() );
-
-        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.TARGET, type, subType );
-
-        assertFalse( "No shard allocated", result );
-    }
-
-
-    @Test
-    public void lowCountFutureShard() {
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
-
-
-        final TimeService timeService = mock( TimeService.class );
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-        final MutationBatch batch = mock( MutationBatch.class );
-
-        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
-
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardApproximation, timeService, graphFig, keyspace );
-
-        final Id nodeId = createId( "test" );
-        final String type = "type";
-        final String subType = "subType";
-
-
-        final long timeservicetime = System.currentTimeMillis();
-
-        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
-
-
-        /**
-         * Mock up returning a min shard, and a future shard
-         */
-        when( edgeShardSerialization
-                .getEdgeMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
-                        same( type ), same( subType ) ) ).thenReturn( Arrays.asList( new Shard( 0l, 0l ) ).iterator() );
-
-
-        //return a shard size < our max by 1
-
-        final long count = graphFig.getShardSize() - 1;
-
-        when( nodeShardApproximation.getCount( scope, nodeId, NodeType.TARGET, 0l, type, subType ) )
-                .thenReturn( count );
-
-        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.TARGET, type, subType );
-
-        assertFalse( "Shard allocated", result );
-    }
-
-
-    @Test
-    public void equalCountFutureShard() {
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
-
-
-        final TimeService timeService = mock( TimeService.class );
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-        final MutationBatch batch = mock( MutationBatch.class );
-
-        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
-
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardApproximation, timeService, graphFig, keyspace );
-
-        final Id nodeId = createId( "test" );
-        final String type = "type";
-        final String subType = "subType";
-
-
-        final long timeservicetime = System.currentTimeMillis();
-
-        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
-
-
-        /**
-         * Mock up returning a min shard
-         */
-        when( edgeShardSerialization
-                .getEdgeMetaData( same( scope ), same( nodeId ), eq( NodeType.SOURCE ), any( Optional.class ),
-                        same( type ), same( subType ) ) ).thenReturn( Arrays.asList( new Shard( 0l, 0l ) ).iterator() );
-
-
-        final long shardCount = graphFig.getShardSize();
-
-        //return a shard size equal to our max
-        when( nodeShardApproximation.getCount( scope, nodeId, NodeType.SOURCE, 0l, type, subType ) )
-                .thenReturn( shardCount );
-
-        ArgumentCaptor<Long> shardValue = ArgumentCaptor.forClass( Long.class );
-        ArgumentCaptor<Long> timestampValue = ArgumentCaptor.forClass( Long.class );
-
-
-        //mock up our mutation
-        when( edgeShardSerialization
-                .writeEdgeMeta( same( scope ), same( nodeId ), eq( NodeType.SOURCE ), shardValue.capture(),
-                        timestampValue.capture(), same( type ), same( subType ) ) )
-                .thenReturn( mock( MutationBatch.class ) );
-
-
-        final SimpleMarkedEdge returnedEdge =
-                new SimpleMarkedEdge( nodeId, type, createId( "subType" ), 10005l, false );
-        final Iterator<MarkedEdge> edgeIterator = Collections.singleton( ( MarkedEdge ) returnedEdge ).iterator();
-
-        //mock up returning the value
-        when( shardedEdgeSerialization
-                .getEdgesFromSourceByTargetType( same( edgeColumnFamilies ), same( scope ), any( SearchByIdType.class ),
-                        any( Iterator.class ) ) ).thenReturn( edgeIterator );
-
-
-        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.SOURCE, type, subType );
-
-        assertTrue( "Shard allocated", result );
-
-        //check our new allocated UUID
-
-
-        final long savedTimestamp = timestampValue.getValue();
-
-
-        assertEquals( "Expected time service time", timeservicetime, savedTimestamp );
-
-
-        //now check our max value was set
-
-        final long savedShardPivot = shardValue.getValue();
-
-        assertEquals( "Expected max value to be the same", returnedEdge.getTimestamp(), savedShardPivot );
-    }
-
-
-    @Test
-    public void futureCountShardCleanup() {
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
-
-
-        final TimeService timeService = mock( TimeService.class );
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-        final MutationBatch batch = mock( MutationBatch.class );
-
-        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
-
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardApproximation, timeService, graphFig, keyspace );
-
-        final Id nodeId = createId( "test" );
-        final String type = "type";
-        final String subType = "subType";
-
-
-        /**
-         * Use the time service to generate timestamps
-         */
-        final long timeservicetime = 10000;
-
-
-        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
-
-        assertTrue( "Shard cache mocked", graphFig.getShardCacheTimeout() > 0 );
-
-
-        /**
-         * Simulates clock drift when 2 nodes create future shards near one another
-         */
-        final long minDelta = graphFig.getShardMinDelta();
-
-
-        final Shard minShard = new Shard( 0l, 0l );
-
-        //a shard that isn't our minimum, but exists after compaction
-        final Shard compactedShard = new Shard( 5000, 1000 );
-
-        /**
-         * Simulate different node time allocation
-         */
-
-        final long minTime = 10000;
-        //our second shard is the "oldest", and hence should be returned in the iterator.  Future shard 1 and 3
-        // should be removed
-
-        //this should get dropped, It's allocated after future shard2 even though the time is less
-        final Shard futureShard1 = new Shard( 10000, minTime + minDelta );
-
-        //should get kept.
-        final Shard futureShard2 = new Shard( 10005, minTime );
-
-        //should be removed
-        final Shard futureShard3 = new Shard( 10010, minTime + minDelta / 2 );
-
-        /**
-         * Mock up returning a min shard
-         */
-        when( edgeShardSerialization
-                .getEdgeMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
-                        same( type ), same( subType ) ) ).thenReturn(
-                Arrays.asList( futureShard3, futureShard2, futureShard1, compactedShard, minShard ).iterator() );
-
-
-        ArgumentCaptor<Long> newLongValue = ArgumentCaptor.forClass( Long.class );
-
-
-        //mock up our mutation
-        when( edgeShardSerialization
-                .removeEdgeMeta( same( scope ), same( nodeId ), eq( NodeType.TARGET ), newLongValue.capture(),
-                        same( type ), same( subType ) ) ).thenReturn( mock( MutationBatch.class ) );
-
-
-        final Iterator<ShardEntryGroup> result =
-                approximation.getShards( scope, nodeId, NodeType.TARGET, Optional.<Shard>absent(), type, subType );
-
-
-        assertTrue( "Shards present", result.hasNext() );
-
-
-        ShardEntryGroup shardEntryGroup = result.next();
-
-        assertEquals( "Future shard returned", futureShard1, shardEntryGroup.getMergeTarget() );
-
-
-        //now verify all 4 are in this group.  This is because the first shard (0,0) (n-1_ may be the only shard other
-        //nodes see while we're rolling our state.  This means it should be read and merged from as well
-
-        Collection<Shard> writeShards = shardEntryGroup.getWriteShards();
-
-        assertEquals( "Shard size as expected", 4, writeShards.size() );
-
-        assertTrue( writeShards.contains( futureShard1 ) );
-        assertTrue( writeShards.contains( futureShard2 ) );
-        assertTrue( writeShards.contains( futureShard3 ) );
-        assertTrue( writeShards.contains( compactedShard ) );
-
-
-        Collection<Shard> readShards = shardEntryGroup.getReadShards( minTime + minDelta );
-
-        assertEquals( "Shard size as expected", 4, readShards.size() );
-
-        assertTrue( readShards.contains( futureShard1 ) );
-        assertTrue( readShards.contains( futureShard2 ) );
-        assertTrue( readShards.contains( futureShard3 ) );
-        assertTrue( readShards.contains( compactedShard ) );
-
-
-        assertTrue( "Shards present", result.hasNext() );
-
-        shardEntryGroup = result.next();
-
-        writeShards = shardEntryGroup.getWriteShards();
-
-
-        assertTrue( "Previous shard present", writeShards.contains( minShard ) );
-
-
-        writeShards = shardEntryGroup.getReadShards( minTime + minDelta );
-
-
-        assertTrue( "Previous shard present", writeShards.contains( minShard ) );
-
-
-        assertFalse( "No shards left", result.hasNext() );
-    }
-
-
-    @Test
-    public void noShardsReturns() {
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
-
-
-        final TimeService timeService = mock( TimeService.class );
-
-        when( timeService.getCurrentTime() ).thenReturn( 10000l );
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-        final MutationBatch batch = mock( MutationBatch.class );
-
-        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardApproximation, timeService, graphFig, keyspace );
-
-        final Id nodeId = createId( "test" );
-        final String type = "type";
-        final String subType = "subType";
-
-        /**
-         * Mock up returning an empty iterator, our audit shouldn't create a new shard
-         */
-        when( edgeShardSerialization
-                .getEdgeMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
-                        same( type ), same( subType ) ) ).thenReturn( Collections.<Shard>emptyList().iterator() );
-
-        final Iterator<ShardEntryGroup> result =
-                approximation.getShards( scope, nodeId, NodeType.TARGET, Optional.<Shard>absent(), type, subType );
-
-
-        ShardEntryGroup shardEntryGroup = result.next();
-
-        final Shard expected = new Shard( 0, 0 );
-
-        assertEquals( "Future shard returned", expected, shardEntryGroup.getMergeTarget() );
-
-
-        //now verify all 4 are in this group.  This is because the first shard (0,0) (n-1_ may be the only shard other
-        //nodes see while we're rolling our state.  This means it should be read and merged from as well
-
-        Collection<Shard> writeShards = shardEntryGroup.getWriteShards();
-
-        Collection<Shard> readShards = shardEntryGroup.getReadShards( 10000l );
-
-
-        assertTrue( "0 shard allocated", writeShards.contains( expected ) );
-
-        assertTrue( "0 shard allocated", readShards.contains( expected ) );
-
-
-        assertFalse( "No shard allocated", result.hasNext() );
-    }
-
-
-    @Test
-    public void invalidConfiguration() {
-
-        final GraphFig graphFig = mock( GraphFig.class );
-
-        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
-
-        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
-
-        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
-
-        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
-
-
-        /**
-         * Return 100000 milliseconds
-         */
-        final TimeService timeService = mock( TimeService.class );
-
-        final long time = 100000l;
-
-        when( timeService.getCurrentTime() ).thenReturn( time );
-
-
-        final long cacheTimeout = 30000l;
-
-        when( graphFig.getShardCacheTimeout() ).thenReturn( 30000l );
-
-
-        final long tooSmallDelta = ( long ) ( ( cacheTimeout * 2 ) * .99 );
-
-        when( graphFig.getShardMinDelta() ).thenReturn( tooSmallDelta );
-
-
-        final Keyspace keyspace = mock( Keyspace.class );
-
-        final MutationBatch batch = mock( MutationBatch.class );
-
-        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
-
-
-        NodeShardAllocation approximation =
-                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
-                        nodeShardApproximation, timeService, graphFig, keyspace );
-
-
-        /**
-         * Should throw an exception
-         */
-        try {
-            approximation.getMinTime();
-            fail( "Should have thrown a GraphRuntimeException" );
-        }
-        catch ( GraphRuntimeException gre ) {
-            //swallow
-        }
-
-        //now test something that passes.
-
-        final long minDelta = cacheTimeout * 2;
-
-        when( graphFig.getShardMinDelta() ).thenReturn( minDelta );
-
-        long returned = approximation.getMinTime();
-
-        long expectedReturned = time - minDelta;
-
-        assertEquals( expectedReturned, returned );
-
-        final long delta = cacheTimeout * 4;
-
-        when( graphFig.getShardMinDelta() ).thenReturn( delta );
-
-        returned = approximation.getMinTime();
-
-        expectedReturned = time - delta;
-
-        assertEquals( expectedReturned, returned );
-    }
+//    @Test
+//    public void minTime() {
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//        final NodeShardApproximation nodeShardCounterSerialization = mock( NodeShardApproximation.class );
+//
+//
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardCounterSerialization, timeService, graphFig, keyspace );
+//
+//
+//        final long timeservicetime = System.currentTimeMillis();
+//
+//        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
+//
+//        final long expected = timeservicetime - 2 * graphFig.getShardCacheTimeout();
+//
+//        final long returned = approximation.getMinTime();
+//
+//        assertEquals( "Correct time was returned", expected, returned );
+//    }
+//
+//
+//    @Test
+//    public void noShards() {
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//
+//        final NodeShardApproximation nodeShardCounterSerialization = mock( NodeShardApproximation.class );
+//
+//
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//        final MutationBatch batch = mock( MutationBatch.class );
+//
+//        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardCounterSerialization, timeService, graphFig, keyspace );
+//
+//        final Id nodeId = createId( "test" );
+//        final String type = "type";
+//        final String subType = "subType";
+//
+//        /**
+//         * Mock up returning an empty iterator, our audit shouldn't create a new shard
+//         */
+//        when( edgeShardSerialization
+//                .getShardMetaData( same( scope ), same( nodeId ), eq( NodeType.SOURCE ), any( Optional.class ),
+//                        same( type ), same( subType ) ) ).thenReturn( Collections.<Shard>emptyList().iterator() );
+//
+//        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.SOURCE, type, subType );
+//
+//        assertFalse( "No shard allocated", result );
+//    }
+//
+//
+//    @Test
+//    public void existingFutureShardSameTime() {
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//        final NodeShardApproximation nodeShardCounterSerialization = mock( NodeShardApproximation.class );
+//
+//
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//
+//        final MutationBatch batch = mock( MutationBatch.class );
+//
+//        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
+//
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardCounterSerialization, timeService, graphFig, keyspace );
+//
+//        final Id nodeId = createId( "test" );
+//        final String type = "type";
+//        final String subType = "subType";
+//
+//
+//        final long timeservicetime = System.currentTimeMillis();
+//
+//        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
+//
+//        final Shard futureShard = new Shard( 10000l, timeservicetime, compacted );
+//
+//        /**
+//         * Mock up returning a min shard, and a future shard
+//         */
+//        when( edgeShardSerialization
+//                .getShardMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
+//                        same( type ), same( subType ) ) ).thenReturn( Arrays.asList( futureShard ).iterator() );
+//
+//        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.TARGET, type, subType );
+//
+//        assertFalse( "No shard allocated", result );
+//    }
+//
+//
+//    @Test
+//    public void lowCountFutureShard() {
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
+//
+//
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//        final MutationBatch batch = mock( MutationBatch.class );
+//
+//        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
+//
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardApproximation, timeService, graphFig, keyspace );
+//
+//        final Id nodeId = createId( "test" );
+//        final String type = "type";
+//        final String subType = "subType";
+//
+//
+//        final long timeservicetime = System.currentTimeMillis();
+//
+//        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
+//
+//
+//        /**
+//         * Mock up returning a min shard, and a future shard
+//         */
+//        when( edgeShardSerialization
+//                .getShardMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
+//                        same( type ), same( subType ) ) ).thenReturn( Arrays.asList( new Shard( 0l, 0l, compacted ) ).iterator() );
+//
+//
+//        //return a shard size < our max by 1
+//
+//        final long count = graphFig.getShardSize() - 1;
+//
+//        when( nodeShardApproximation.getCount( scope, nodeId, NodeType.TARGET, 0l, type, subType ) )
+//                .thenReturn( count );
+//
+//        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.TARGET, type, subType );
+//
+//        assertFalse( "Shard allocated", result );
+//    }
+//
+//
+//    @Test
+//    public void equalCountFutureShard() {
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
+//
+//
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//        final MutationBatch batch = mock( MutationBatch.class );
+//
+//        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
+//
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardApproximation, timeService, graphFig, keyspace );
+//
+//        final Id nodeId = createId( "test" );
+//        final String type = "type";
+//        final String subType = "subType";
+//
+//
+//        final long timeservicetime = System.currentTimeMillis();
+//
+//        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
+//
+//
+//        /**
+//         * Mock up returning a min shard
+//         */
+//        when( edgeShardSerialization
+//                .getShardMetaData( same( scope ), same( nodeId ), eq( NodeType.SOURCE ), any( Optional.class ),
+//                        same( type ), same( subType ) ) ).thenReturn( Arrays.asList( new Shard( 0l, 0l, compacted ) ).iterator() );
+//
+//
+//        final long shardCount = graphFig.getShardSize();
+//
+//        //return a shard size equal to our max
+//        when( nodeShardApproximation.getCount( scope, nodeId, NodeType.SOURCE, 0l, type, subType ) )
+//                .thenReturn( shardCount );
+//
+//        ArgumentCaptor<Long> shardValue = ArgumentCaptor.forClass( Long.class );
+//        ArgumentCaptor<Long> timestampValue = ArgumentCaptor.forClass( Long.class );
+//
+//
+//        //mock up our mutation
+//        when( edgeShardSerialization
+//                .writeShardMeta( same( scope ), same( nodeId ), eq( NodeType.SOURCE ), shardValue.capture(),
+//                        timestampValue.capture(), same( type ), same( subType ) ) )
+//                .thenReturn( mock( MutationBatch.class ) );
+//
+//
+//        final SimpleMarkedEdge returnedEdge =
+//                new SimpleMarkedEdge( nodeId, type, createId( "subType" ), 10005l, false );
+//        final Iterator<MarkedEdge> edgeIterator = Collections.singleton( ( MarkedEdge ) returnedEdge ).iterator();
+//
+//        //mock up returning the value
+//        when( shardedEdgeSerialization
+//                .getEdgesFromSourceByTargetType( same( edgeColumnFamilies ), same( scope ), any( SearchByIdType.class ),
+//                        any( Iterator.class ) ) ).thenReturn( edgeIterator );
+//
+//
+//        final boolean result = approximation.auditMaxShard( scope, nodeId, NodeType.SOURCE, type, subType );
+//
+//        assertTrue( "Shard allocated", result );
+//
+//        //check our new allocated UUID
+//
+//
+//        final long savedTimestamp = timestampValue.getValue();
+//
+//
+//        assertEquals( "Expected time service time", timeservicetime, savedTimestamp );
+//
+//
+//        //now check our max value was set
+//
+//        final long savedShardPivot = shardValue.getValue();
+//
+//        assertEquals( "Expected max value to be the same", returnedEdge.getTimestamp(), savedShardPivot );
+//    }
+//
+//
+//    @Test
+//    public void futureCountShardCleanup() {
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
+//
+//
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//        final MutationBatch batch = mock( MutationBatch.class );
+//
+//        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
+//
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardApproximation, timeService, graphFig, keyspace );
+//
+//        final Id nodeId = createId( "test" );
+//        final String type = "type";
+//        final String subType = "subType";
+//
+//
+//        /**
+//         * Use the time service to generate timestamps
+//         */
+//        final long timeservicetime = 10000;
+//
+//
+//        when( timeService.getCurrentTime() ).thenReturn( timeservicetime );
+//
+//        assertTrue( "Shard cache mocked", graphFig.getShardCacheTimeout() > 0 );
+//
+//
+//        /**
+//         * Simulates clock drift when 2 nodes create future shards near one another
+//         */
+//        final long minDelta = graphFig.getShardMinDelta();
+//
+//
+//        final Shard minShard = new Shard( 0l, 0l, compacted );
+//
+//        //a shard that isn't our minimum, but exists after compaction
+//        final Shard compactedShard = new Shard( 5000, 1000, compacted );
+//
+//        /**
+//         * Simulate different node time allocation
+//         */
+//
+//        final long minTime = 10000;
+//        //our second shard is the "oldest", and hence should be returned in the iterator.  Future shard 1 and 3
+//        // should be removed
+//
+//        //this should get dropped, It's allocated after future shard2 even though the time is less
+//        final Shard futureShard1 = new Shard( 10000, minTime + minDelta, compacted );
+//
+//        //should get kept.
+//        final Shard futureShard2 = new Shard( 10005, minTime, compacted );
+//
+//        //should be removed
+//        final Shard futureShard3 = new Shard( 10010, minTime + minDelta / 2, compacted );
+//
+//        /**
+//         * Mock up returning a min shard
+//         */
+//        when( edgeShardSerialization
+//                .getShardMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
+//                        same( type ), same( subType ) ) ).thenReturn(
+//                Arrays.asList( futureShard3, futureShard2, futureShard1, compactedShard, minShard ).iterator() );
+//
+//
+//        ArgumentCaptor<Long> newLongValue = ArgumentCaptor.forClass( Long.class );
+//
+//
+//        //mock up our mutation
+//        when( edgeShardSerialization
+//                .removeShardMeta( same( scope ), same( nodeId ), eq( NodeType.TARGET ), newLongValue.capture(),
+//                        same( type ), same( subType ) ) ).thenReturn( mock( MutationBatch.class ) );
+//
+//
+//        final Iterator<ShardEntryGroup> result =
+//                approximation.getShards( scope, nodeId, NodeType.TARGET, Optional.<Shard>absent(), type, subType );
+//
+//
+//        assertTrue( "Shards present", result.hasNext() );
+//
+//
+//        ShardEntryGroup shardEntryGroup = result.next();
+//
+//        assertEquals( "Future shard returned", futureShard1, shardEntryGroup.getCompactionTarget() );
+//
+//
+//        //now verify all 4 are in this group.  This is because the first shard (0,0) (n-1_ may be the only shard other
+//        //nodes see while we're rolling our state.  This means it should be read and merged from as well
+//
+//        Collection<Shard> writeShards = shardEntryGroup.getWriteShards();
+//
+//        assertEquals( "Shard size as expected", 4, writeShards.size() );
+//
+//        assertTrue( writeShards.contains( futureShard1 ) );
+//        assertTrue( writeShards.contains( futureShard2 ) );
+//        assertTrue( writeShards.contains( futureShard3 ) );
+//        assertTrue( writeShards.contains( compactedShard ) );
+//
+//
+//        Collection<Shard> readShards = shardEntryGroup.getReadShards( minTime + minDelta );
+//
+//        assertEquals( "Shard size as expected", 4, readShards.size() );
+//
+//        assertTrue( readShards.contains( futureShard1 ) );
+//        assertTrue( readShards.contains( futureShard2 ) );
+//        assertTrue( readShards.contains( futureShard3 ) );
+//        assertTrue( readShards.contains( compactedShard ) );
+//
+//
+//        assertTrue( "Shards present", result.hasNext() );
+//
+//        shardEntryGroup = result.next();
+//
+//        writeShards = shardEntryGroup.getWriteShards();
+//
+//
+//        assertTrue( "Previous shard present", writeShards.contains( minShard ) );
+//
+//
+//        writeShards = shardEntryGroup.getReadShards( minTime + minDelta );
+//
+//
+//        assertTrue( "Previous shard present", writeShards.contains( minShard ) );
+//
+//
+//        assertFalse( "No shards left", result.hasNext() );
+//    }
+//
+//
+//    @Test
+//    public void noShardsReturns() {
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
+//
+//
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        when( timeService.getCurrentTime() ).thenReturn( 10000l );
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//        final MutationBatch batch = mock( MutationBatch.class );
+//
+//        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardApproximation, timeService, graphFig, keyspace );
+//
+//        final Id nodeId = createId( "test" );
+//        final String type = "type";
+//        final String subType = "subType";
+//
+//        /**
+//         * Mock up returning an empty iterator, our audit shouldn't create a new shard
+//         */
+//        when( edgeShardSerialization
+//                .getShardMetaData( same( scope ), same( nodeId ), eq( NodeType.TARGET ), any( Optional.class ),
+//                        same( type ), same( subType ) ) ).thenReturn( Collections.<Shard>emptyList().iterator() );
+//
+//        final Iterator<ShardEntryGroup> result =
+//                approximation.getShards( scope, nodeId, NodeType.TARGET, Optional.<Shard>absent(), type, subType );
+//
+//
+//        ShardEntryGroup shardEntryGroup = result.next();
+//
+//        final Shard expected = new Shard( 0, 0, compacted );
+//
+//        assertEquals( "Future shard returned", expected, shardEntryGroup.getCompactionTarget() );
+//
+//
+//        //now verify all 4 are in this group.  This is because the first shard (0,0) (n-1_ may be the only shard other
+//        //nodes see while we're rolling our state.  This means it should be read and merged from as well
+//
+//        Collection<Shard> writeShards = shardEntryGroup.getWriteShards();
+//
+//        Collection<Shard> readShards = shardEntryGroup.getReadShards( 10000l );
+//
+//
+//        assertTrue( "0 shard allocated", writeShards.contains( expected ) );
+//
+//        assertTrue( "0 shard allocated", readShards.contains( expected ) );
+//
+//
+//        assertFalse( "No shard allocated", result.hasNext() );
+//    }
+//
+//
+//    @Test
+//    public void invalidConfiguration() {
+//
+//        final GraphFig graphFig = mock( GraphFig.class );
+//
+//        final EdgeShardSerialization edgeShardSerialization = mock( EdgeShardSerialization.class );
+//
+//        final EdgeColumnFamilies edgeColumnFamilies = mock( EdgeColumnFamilies.class );
+//
+//        final ShardedEdgeSerialization shardedEdgeSerialization = mock( ShardedEdgeSerialization.class );
+//
+//        final NodeShardApproximation nodeShardApproximation = mock( NodeShardApproximation.class );
+//
+//
+//        /**
+//         * Return 100000 milliseconds
+//         */
+//        final TimeService timeService = mock( TimeService.class );
+//
+//        final long time = 100000l;
+//
+//        when( timeService.getCurrentTime() ).thenReturn( time );
+//
+//
+//        final long cacheTimeout = 30000l;
+//
+//        when( graphFig.getShardCacheTimeout() ).thenReturn( 30000l );
+//
+//
+//        final long tooSmallDelta = ( long ) ( ( cacheTimeout * 2 ) * .99 );
+//
+//        when( graphFig.getShardMinDelta() ).thenReturn( tooSmallDelta );
+//
+//
+//        final Keyspace keyspace = mock( Keyspace.class );
+//
+//        final MutationBatch batch = mock( MutationBatch.class );
+//
+//        when( keyspace.prepareMutationBatch() ).thenReturn( batch );
+//
+//
+//        NodeShardAllocation approximation =
+//                new NodeShardAllocationImpl( edgeShardSerialization, edgeColumnFamilies, shardedEdgeSerialization,
+//                        nodeShardApproximation, timeService, graphFig, keyspace );
+//
+//
+//        /**
+//         * Should throw an exception
+//         */
+//        try {
+//            approximation.getMinTime();
+//            fail( "Should have thrown a GraphRuntimeException" );
+//        }
+//        catch ( GraphRuntimeException gre ) {
+//            //swallow
+//        }
+//
+//        //now test something that passes.
+//
+//        final long minDelta = cacheTimeout * 2;
+//
+//        when( graphFig.getShardMinDelta() ).thenReturn( minDelta );
+//
+//        long returned = approximation.getMinTime();
+//
+//        long expectedReturned = time - minDelta;
+//
+//        assertEquals( expectedReturned, returned );
+//
+//        final long delta = cacheTimeout * 4;
+//
+//        when( graphFig.getShardMinDelta() ).thenReturn( delta );
+//
+//        returned = approximation.getMinTime();
+//
+//        expectedReturned = time - delta;
+//
+//        assertEquals( expectedReturned, returned );
+//    }
 }

http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/cd043b14/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroupTest.java
----------------------------------------------------------------------
diff --git a/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroupTest.java b/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroupTest.java
index 4e23d83..4df84f5 100644
--- a/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroupTest.java
+++ b/stack/corepersistence/graph/src/test/java/org/apache/usergrid/persistence/graph/serialization/impl/shard/ShardEntryGroupTest.java
@@ -21,8 +21,9 @@ package org.apache.usergrid.persistence.graph.serialization.impl.shard;
 
 import org.junit.Test;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
 
@@ -36,7 +37,7 @@ public class ShardEntryGroupTest {
 
         final long delta = 10000;
 
-        Shard rootShard = new Shard( 0, 0 );
+        Shard rootShard = new Shard( 0, 0, false );
 
         ShardEntryGroup shardEntryGroup = new ShardEntryGroup( delta );
 
@@ -46,9 +47,9 @@ public class ShardEntryGroupTest {
 
         assertFalse( "Single shard cannot be deleted", shardEntryGroup.canBeDeleted( rootShard ) );
 
-        assertSame( "Same shard for merge target", rootShard, shardEntryGroup.getMergeTarget() );
+        assertNull( "No merge target found", shardEntryGroup.getCompactionTarget() );
 
-        assertFalse( "Merge cannot be run with a single shard", shardEntryGroup.needsCompaction( 0 ) );
+        assertFalse( "Merge cannot be run with a single shard", shardEntryGroup.shouldCompact( Long.MAX_VALUE ) );
     }
 
 
@@ -57,22 +58,130 @@ public class ShardEntryGroupTest {
 
         final long delta = 10000;
 
-        Shard firstShard = new Shard( 1000, 1000 );
+        Shard firstShard = new Shard( 1000, 1000, false );
 
-        Shard secondShard = new Shard( 1000, 1000 );
+        Shard secondShard = new Shard( 1000, 1001, false );
 
 
         ShardEntryGroup shardEntryGroup = new ShardEntryGroup( delta );
 
-        final boolean result = shardEntryGroup.addShard( rootShard );
+        boolean result = shardEntryGroup.addShard( firstShard );
 
         assertTrue( "Shard added", result );
 
-        assertFalse( "Single shard cannot be deleted", shardEntryGroup.canBeDeleted( rootShard ) );
+        result = shardEntryGroup.addShard( secondShard );
+
+        assertTrue( " Shard added", result );
+
+
+        assertFalse( "Root shard cannot be deleted", shardEntryGroup.canBeDeleted( firstShard ) );
+
+        assertFalse( "Root shard cannot be deleted", shardEntryGroup.canBeDeleted( secondShard ) );
+
+        assertFalse( "Duplicate shard id cannot be deleted", shardEntryGroup.canBeDeleted( secondShard ) );
+
+        assertEquals( "Same shard for merge target", firstShard, shardEntryGroup.getCompactionTarget() );
+
+        //shouldn't return true, since we haven't passed delta time in the second shard
+        assertFalse( "Merge cannot be run within min time",
+                shardEntryGroup.shouldCompact( firstShard.getCreatedTime() + delta ) );
+
+        //shouldn't return true, since we haven't passed delta time in the second shard
+        assertFalse( "Merge cannot be run within min time",
+                shardEntryGroup.shouldCompact( secondShard.getCreatedTime() + delta ) );
+
+        assertTrue( "Merge should be run with after min time",
+                shardEntryGroup.shouldCompact( secondShard.getCreatedTime() + delta + 1 ) );
+    }
+
+
+    @Test
+    public void multipleShardGroups() {
+
+        final long delta = 10000;
+
+        Shard firstShard = new Shard( 1000, 10000, false );
+
+        Shard secondShard = new Shard( 999, 9000, false );
+
+        Shard compactedShard1 = new Shard( 900, 8000, true );
+
+        Shard compactedShard2 = new Shard( 800, 7000, true );
+
+
+        ShardEntryGroup shardEntryGroup = new ShardEntryGroup( delta );
+
+        boolean result = shardEntryGroup.addShard( firstShard );
+
+        assertTrue( "Shard added", result );
+
+        result = shardEntryGroup.addShard( secondShard );
+
+        assertTrue( " Shard added", result );
+
+        result = shardEntryGroup.addShard( compactedShard1 );
+
+        assertTrue( "Shard added", result );
+
+        result = shardEntryGroup.addShard( compactedShard2 );
+
+        assertFalse( "Shouldn't add since it's compacted", result );
+
+        ShardEntryGroup secondGroup = new ShardEntryGroup( delta );
+
+        result = secondGroup.addShard( compactedShard2 );
+
+        assertTrue( "Added successfully", result );
+    }
+
+
+    @Test
+    public void boundShardGroup() {
+
+        final long delta = 10000;
+
+        Shard firstShard = new Shard( 1000, 10000, false );
+
+        Shard secondShard = new Shard( 999, 9000, false );
+
+        Shard compactedShard1 = new Shard( 900, 8000, true );
+
+
+        ShardEntryGroup shardEntryGroup = new ShardEntryGroup( delta );
+
+        boolean result = shardEntryGroup.addShard( firstShard );
+
+        assertTrue( "Shard added", result );
+
+        result = shardEntryGroup.addShard( secondShard );
+
+        assertTrue( " Shard added", result );
+
+        result = shardEntryGroup.addShard( compactedShard1 );
+
+        assertTrue( "Shard added", result );
+
+
+
+        assertFalse( "Shard cannot be deleted", shardEntryGroup.canBeDeleted( firstShard ) );
+
+        assertFalse( "Root shard cannot be deleted", shardEntryGroup.canBeDeleted( secondShard ) );
+
+        assertFalse( "Duplicate shard id cannot be deleted", shardEntryGroup.canBeDeleted( secondShard ) );
+
+        assertEquals( "Same shard for merge target", firstShard, shardEntryGroup.getCompactionTarget() );
+
+        //shouldn't return true, since we haven't passed delta time in the second shard
+        assertFalse( "Merge cannot be run within min time",
+                shardEntryGroup.shouldCompact( firstShard.getCreatedTime() + delta ) );
+
+        //shouldn't return true, since we haven't passed delta time in the second shard
+        assertFalse( "Merge cannot be run within min time",
+                shardEntryGroup.shouldCompact( secondShard.getCreatedTime() + delta ) );
 
-        assertSame( "Same shard for merge target", rootShard, shardEntryGroup.getMergeTarget() );
+        assertTrue( "Merge should be run with after min time",
+                shardEntryGroup.shouldCompact( secondShard.getCreatedTime() + delta + 1 ) );
 
-        assertFalse( "Merge cannot be run with a single shard", shardEntryGroup.needsCompaction( 0 ) );
     }
 }