diff --git a/client/src/main/java/com/metamx/druid/shard/LinearShardSpec.java b/client/src/main/java/com/metamx/druid/shard/LinearShardSpec.java
new file mode 100644
index 00000000000..249cb002bd2
--- /dev/null
+++ b/client/src/main/java/com/metamx/druid/shard/LinearShardSpec.java
@@ -0,0 +1,49 @@
+package com.metamx.druid.shard;
+
+import com.metamx.druid.input.InputRow;
+import com.metamx.druid.partition.LinearPartitionChunk;
+import com.metamx.druid.partition.PartitionChunk;
+import org.codehaus.jackson.annotate.JsonProperty;
+
+import java.util.Map;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: jbae
+ * Date: 2/4/13
+ * Time: 10:22 AM
+ * To change this template use File | Settings | File Templates.
+ */
+public class LinearShardSpec implements ShardSpec {
+  private int partitionNum;
+
+  public LinearShardSpec() {
+    this(-1);
+  }
+
+  public LinearShardSpec(int partitionNum) {
+    this.partitionNum = partitionNum;
+  }
+
+  @JsonProperty("partitionNum")
+  @Override
+  public int getPartitionNum() {
+    return partitionNum;
+  }
+
+
+  @Override
+  public <T> PartitionChunk<T> createChunk(T obj) {
+    return new LinearPartitionChunk<T>(partitionNum, obj);
+  }
+
+  @Override
+  public boolean isInChunk(Map<String, String> dimensions) {
+    return true;
+  }
+
+  @Override
+  public boolean isInChunk(InputRow inputRow) {
+    return true;
+  }
+}
\ No newline at end of file
diff --git a/client/src/main/java/com/metamx/druid/shard/ShardSpec.java b/client/src/main/java/com/metamx/druid/shard/ShardSpec.java
index c0127b055e9..df3eb29004a 100644
--- a/client/src/main/java/com/metamx/druid/shard/ShardSpec.java
+++ b/client/src/main/java/com/metamx/druid/shard/ShardSpec.java
@@ -32,7 +32,8 @@ import java.util.Map;
 @JsonTypeInfo(use=JsonTypeInfo.Id.NAME, property="type", include=JsonTypeInfo.As.PROPERTY)
 @JsonSubTypes({
     @JsonSubTypes.Type(name="single", value=SingleDimensionShardSpec.class),
-    @JsonSubTypes.Type(name="none", value=NoneShardSpec.class)
+    @JsonSubTypes.Type(name="none", value=NoneShardSpec.class),
+    @JsonSubTypes.Type(name="linear", value=LinearShardSpec.class)
 })
 public interface ShardSpec
 {
diff --git a/common/src/main/java/com/metamx/druid/partition/LinearPartitionChunk.java b/common/src/main/java/com/metamx/druid/partition/LinearPartitionChunk.java
new file mode 100644
index 00000000000..fecc541fd84
--- /dev/null
+++ b/common/src/main/java/com/metamx/druid/partition/LinearPartitionChunk.java
@@ -0,0 +1,91 @@
+package com.metamx.druid.partition;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: jbae
+ * Date: 2/4/13
+ * Time: 10:24 AM
+ * To change this template use File | Settings | File Templates.
+ */
+public class LinearPartitionChunk <T> implements PartitionChunk<T>
+{
+  private final int chunkNumber;
+  private final T object;
+
+  public static <T> LinearPartitionChunk<T> make(int chunkNumber, T obj)
+  {
+    return new LinearPartitionChunk<T>(chunkNumber, obj);
+  }
+
+
+  public LinearPartitionChunk(
+      int chunkNumber,
+      T object
+  )
+  {
+    this.chunkNumber = chunkNumber;
+    this.object = object;
+  }
+
+  @Override
+  public T getObject()
+  {
+    return object;
+  }
+
+  @Override
+  public boolean abuts(PartitionChunk<T> chunk)
+  {
+    return true; // always complete
+  }
+
+  @Override
+  public boolean isStart()
+  {
+    return true; // always complete
+  }
+
+  @Override
+
+  public boolean isEnd()
+  {
+    return true; // always complete
+  }
+
+  @Override
+  public int getChunkNumber()
+  {
+    return chunkNumber;
+  }
+
+  @Override
+  public int compareTo(PartitionChunk<T> chunk)
+  {
+    if (chunk instanceof LinearPartitionChunk) {
+      LinearPartitionChunk<T> linearChunk = (LinearPartitionChunk<T>) chunk;
+
+      return chunkNumber - chunk.getChunkNumber();
+    }
+    throw new IllegalArgumentException("Cannot compare against something that is not a LinearPartitionChunk.");
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public boolean equals(Object o)
+  {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+
+    return compareTo((LinearPartitionChunk<T>) o) == 0;
+  }
+
+  @Override
+  public int hashCode()
+  {
+    return chunkNumber;
+  }
+}
\ No newline at end of file
diff --git a/server/src/main/java/com/metamx/druid/loading/S3SegmentPusher.java b/server/src/main/java/com/metamx/druid/loading/S3SegmentPusher.java
index 4d0c1148593..4d64c3ed464 100644
--- a/server/src/main/java/com/metamx/druid/loading/S3SegmentPusher.java
+++ b/server/src/main/java/com/metamx/druid/loading/S3SegmentPusher.java
@@ -31,14 +31,11 @@ import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.IOUtils;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.jets3t.service.S3ServiceException;
+import org.jets3t.service.acl.gs.GSAccessControlList;
 import org.jets3t.service.impl.rest.httpclient.RestS3Service;
 import org.jets3t.service.model.S3Object;
 
-import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
+import java.io.*;
 import java.security.NoSuchAlgorithmException;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
@@ -105,6 +102,7 @@ public class S3SegmentPusher implements SegmentPusher
       final String outputBucket = config.getBucket();
       toPush.setBucketName(outputBucket);
       toPush.setKey(outputKey + "/index.zip");
+      toPush.setAcl(GSAccessControlList.REST_CANNED_BUCKET_OWNER_FULL_CONTROL);
 
       log.info("Pushing %s.", toPush);
       s3Client.putObject(outputBucket, toPush);
@@ -124,6 +122,7 @@ public class S3SegmentPusher implements SegmentPusher
       S3Object descriptorObject = new S3Object(descriptorFile);
       descriptorObject.setBucketName(outputBucket);
       descriptorObject.setKey(outputKey + "/descriptor.json");
+      descriptorObject.setAcl(GSAccessControlList.REST_CANNED_BUCKET_OWNER_FULL_CONTROL);
 
       log.info("Pushing %s", descriptorObject);
       s3Client.putObject(outputBucket, descriptorObject);