Repository: hadoop
Updated Branches:
  refs/heads/trunk 34424e98a -> 7515e7510


HDFS-11505. Do not enable any erasure coding policies by default. Contributed 
by Manoj Govindassamy.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/7515e751
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/7515e751
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/7515e751

Branch: refs/heads/trunk
Commit: 7515e75103c06ce7139b305dd04d4fb2e94b12ad
Parents: 34424e9
Author: Andrew Wang <w...@apache.org>
Authored: Tue Mar 14 11:47:25 2017 -0700
Committer: Andrew Wang <w...@apache.org>
Committed: Tue Mar 14 11:47:25 2017 -0700

----------------------------------------------------------------------
 .../java/org/apache/hadoop/hdfs/DFSConfigKeys.java   |  2 +-
 .../server/namenode/ErasureCodingPolicyManager.java  |  5 ++++-
 .../hadoop-hdfs/src/main/resources/hdfs-default.xml  |  5 +++--
 .../src/site/markdown/HDFSErasureCoding.md           | 13 +++++++++----
 .../hadoop/hdfs/TestDecommissionWithStriped.java     |  2 ++
 .../hdfs/TestErasureCodeBenchmarkThroughput.java     |  2 ++
 .../hdfs/TestErasureCodingPolicyWithSnapshot.java    |  2 ++
 .../org/apache/hadoop/hdfs/TestFileChecksum.java     |  2 ++
 .../hadoop/hdfs/TestFileStatusWithECPolicy.java      |  5 ++++-
 .../apache/hadoop/hdfs/TestLeaseRecoveryStriped.java |  2 ++
 .../hadoop/hdfs/TestReadStripedFileWithDecoding.java |  2 ++
 .../hdfs/TestReadStripedFileWithMissingBlocks.java   |  2 ++
 .../hadoop/hdfs/TestReconstructStripedFile.java      |  2 ++
 .../hadoop/hdfs/TestSafeModeWithStripedFile.java     |  2 ++
 .../apache/hadoop/hdfs/TestWriteReadStripedFile.java |  2 ++
 .../hadoop/hdfs/server/balancer/TestBalancer.java    |  2 ++
 .../TestBlockTokenWithDFSStriped.java                |  4 ++++
 ...estReconstructStripedBlocksWithRackAwareness.java |  6 ++++++
 .../blockmanagement/TestSequentialBlockGroupId.java  |  2 ++
 .../datanode/TestDataNodeErasureCodingMetrics.java   |  2 ++
 .../apache/hadoop/hdfs/server/mover/TestMover.java   |  2 ++
 .../namenode/TestAddOverReplicatedStripedBlocks.java |  4 +++-
 .../server/namenode/TestAddStripedBlockInFBR.java    |  3 +++
 .../hdfs/server/namenode/TestAddStripedBlocks.java   | 10 ++++++----
 .../hdfs/server/namenode/TestEnabledECPolicies.java  | 15 +++++++++++++--
 .../hdfs/server/namenode/TestFSEditLogLoader.java    |  4 ++++
 .../apache/hadoop/hdfs/server/namenode/TestFsck.java |  8 ++++++++
 .../hdfs/server/namenode/TestNameNodeMXBean.java     |  2 ++
 .../server/namenode/TestQuotaWithStripedBlocks.java  |  2 ++
 .../namenode/TestReconstructStripedBlocks.java       |  6 ++++++
 .../hdfs/server/namenode/TestStripedINodeFile.java   |  4 ++++
 .../TestOfflineImageViewerWithStripedBlocks.java     |  2 ++
 32 files changed, 112 insertions(+), 16 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
index 3fc4980..06b33f9 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
@@ -563,7 +563,7 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
       "10m";
 
   public static final String  DFS_NAMENODE_EC_POLICIES_ENABLED_KEY = 
"dfs.namenode.ec.policies.enabled";
-  public static final String  DFS_NAMENODE_EC_POLICIES_ENABLED_DEFAULT = 
"RS-6-3-64k";
+  public static final String  DFS_NAMENODE_EC_POLICIES_ENABLED_DEFAULT = "";
   public static final String  
DFS_DN_EC_RECONSTRUCTION_STRIPED_READ_THREADS_KEY = 
"dfs.datanode.ec.reconstruction.stripedread.threads";
   public static final int     
DFS_DN_EC_RECONSTRUCTION_STRIPED_READ_THREADS_DEFAULT = 20;
   public static final String  
DFS_DN_EC_RECONSTRUCTION_STRIPED_READ_BUFFER_SIZE_KEY = 
"dfs.datanode.ec.reconstruction.stripedread.buffer.size";

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ErasureCodingPolicyManager.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ErasureCodingPolicyManager.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ErasureCodingPolicyManager.java
index 29af207..c23b034 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ErasureCodingPolicyManager.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ErasureCodingPolicyManager.java
@@ -98,12 +98,15 @@ public final class ErasureCodingPolicyManager {
         DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_DEFAULT);
     this.enabledPoliciesByName = new TreeMap<>();
     for (String policyName : policyNames) {
+      if (policyName.trim().isEmpty()) {
+        continue;
+      }
       ErasureCodingPolicy ecPolicy = SYSTEM_POLICIES_BY_NAME.get(policyName);
       if (ecPolicy == null) {
         String sysPolicies = Arrays.asList(SYS_POLICIES).stream()
             .map(ErasureCodingPolicy::getName)
             .collect(Collectors.joining(", "));
-        String msg = String.format("EC policy %s specified at %s is not a " +
+        String msg = String.format("EC policy '%s' specified at %s is not a " +
             "valid policy. Please choose from list of available policies: " +
             "[%s]",
             policyName,

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml 
b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
index fa5d814..2b14951 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
@@ -2930,10 +2930,11 @@
 
 <property>
   <name>dfs.namenode.ec.policies.enabled</name>
-  <value>RS-6-3-64k</value>
+  <value></value>
   <description>Comma-delimited list of enabled erasure coding policies.
     The NameNode will enforce this when setting an erasure coding policy
-    on a directory.
+    on a directory. By default, none of the built-in erasure coding
+    policies are enabled.
   </description>
 </property>
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSErasureCoding.md
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSErasureCoding.md 
b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSErasureCoding.md
index 9d9f2ce..04acdce 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSErasureCoding.md
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSErasureCoding.md
@@ -66,7 +66,7 @@ Architecture
 
     Policies are named *codec*-*num data blocks*-*num parity blocks*-*cell 
size*. Currently, five built-in policies are supported: `RS-3-2-64k`, 
`RS-6-3-64k`, `RS-10-4-64k`, `RS-LEGACY-6-3-64k`, and `XOR-2-1-64k`.
 
-    By default, only `RS-6-3-64k` is enabled.
+    By default, all built-in erasure coding policies are disabled.
 
     Similar to HDFS storage policies, erasure coding policies are set on a 
directory. When a file is created, it inherits the EC policy of its nearest 
ancestor directory.
 
@@ -91,15 +91,20 @@ Deployment
   Network bisection bandwidth is thus very important.
 
   For rack fault-tolerance, it is also important to have at least as many 
racks as the configured EC stripe width.
-  For the default EC policy of RS (6,3), this means minimally 9 racks, and 
ideally 10 or 11 to handle planned and unplanned outages.
+  For EC policy RS (6,3), this means minimally 9 racks, and ideally 10 or 11 
to handle planned and unplanned outages.
   For clusters with fewer racks than the stripe width, HDFS cannot maintain 
rack fault-tolerance, but will still attempt
   to spread a striped file across multiple nodes to preserve node-level 
fault-tolerance.
 
 ### Configuration keys
 
-  The set of enabled erasure coding policies can be configured on the NameNode 
via `dfs.namenode.ec.policies.enabled`. This restricts what EC policies can be 
set by clients. It does not affect the behavior of already set file or 
directory-level EC policies.
+  The set of enabled erasure coding policies can be configured on the NameNode 
via `dfs.namenode.ec.policies.enabled` configuration. This restricts
+  what EC policies can be set by clients. It does not affect the behavior of 
already set file or directory-level EC policies.
 
-  By default, only the `RS-6-3-64k` policy is enabled. Typically, the cluster 
administrator will configure the set of enabled policies based on the size of 
the cluster and the desired fault-tolerance properties. For instance, for a 
cluster with 9 racks, a policy like `RS-10-4-64k` will not preserve rack-level 
fault-tolerance, and `RS-6-3-64k` or `RS-3-2-64k` might be more appropriate. If 
the administrator only cares about node-level fault-tolerance, `RS-10-4-64k` 
would still be appropriate as long as there are at least 14 DataNodes in the 
cluster.
+  By default, all built-in erasure coding policies are disabled. Typically, 
the cluster administrator will enable set of policies by including them
+  in the `dfs .namenode.ec.policies.enabled` configuration based on the size 
of the cluster and the desired fault-tolerance properties. For instance,
+  for a cluster with 9 racks, a policy like `RS-10-4-64k` will not preserve 
rack-level fault-tolerance, and `RS-6-3-64k` or `RS-3-2-64k` might
+  be more appropriate. If the administrator only cares about node-level 
fault-tolerance, `RS-10-4-64k` would still be appropriate as long as
+  there are at least 14 DataNodes in the cluster.
 
   The codec implementation for Reed-Solomon and XOR can be configured with the 
following client and DataNode configuration keys:
   `io.erasurecode.codec.rs.rawcoder` for the default RS codec,

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommissionWithStriped.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommissionWithStriped.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommissionWithStriped.java
index a5df85f..bb394fe 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommissionWithStriped.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommissionWithStriped.java
@@ -131,6 +131,8 @@ public class TestDecommissionWithStriped {
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
     conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
         false);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
 
     numDNs = dataBlocks + parityBlocks + 2;
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodeBenchmarkThroughput.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodeBenchmarkThroughput.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodeBenchmarkThroughput.java
index 383e53a..be962dc 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodeBenchmarkThroughput.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodeBenchmarkThroughput.java
@@ -48,6 +48,8 @@ public class TestErasureCodeBenchmarkThroughput {
     conf = new HdfsConfiguration();
     int numDN = ErasureCodeBenchmarkThroughput.getEcPolicy().getNumDataUnits() 
+
         ErasureCodeBenchmarkThroughput.getEcPolicy().getNumParityUnits();
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        ErasureCodeBenchmarkThroughput.getEcPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDN).build();
     cluster.waitActive();
     fs = cluster.getFileSystem();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodingPolicyWithSnapshot.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodingPolicyWithSnapshot.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodingPolicyWithSnapshot.java
index 4833c24..c5651ee 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodingPolicyWithSnapshot.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodingPolicyWithSnapshot.java
@@ -48,6 +48,8 @@ public class TestErasureCodingPolicyWithSnapshot {
   @Before
   public void setupCluster() throws IOException {
     conf = new HdfsConfiguration();
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        sysDefaultPolicy.getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize).build();
     cluster.waitActive();
     fs = cluster.getFileSystem();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileChecksum.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileChecksum.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileChecksum.java
index 7f63e18..b804523 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileChecksum.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileChecksum.java
@@ -77,6 +77,8 @@ public class TestFileChecksum {
     conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
         false);
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_MAX_STREAMS_KEY, 0);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     Path ecPath = new Path(ecDir);
     cluster.getFileSystem().mkdir(ecPath, FsPermission.getDirDefault());

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileStatusWithECPolicy.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileStatusWithECPolicy.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileStatusWithECPolicy.java
index 3be0e8d..f033ab7 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileStatusWithECPolicy.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileStatusWithECPolicy.java
@@ -43,8 +43,11 @@ public class TestFileStatusWithECPolicy {
 
   @Before
   public void before() throws IOException {
+    HdfsConfiguration conf = new HdfsConfiguration();
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster =
-        new MiniDFSCluster.Builder(new 
Configuration()).numDataNodes(1).build();
+        new MiniDFSCluster.Builder(conf).numDataNodes(1).build();
     cluster.waitActive();
     fs = cluster.getFileSystem();
     client = fs.getClient();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLeaseRecoveryStriped.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLeaseRecoveryStriped.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLeaseRecoveryStriped.java
index 2ba5aed..86b1aad 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLeaseRecoveryStriped.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLeaseRecoveryStriped.java
@@ -88,6 +88,8 @@ public class TestLeaseRecoveryStriped {
         false);
     conf.setInt(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 1);
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_MAX_STREAMS_KEY, 0);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        ecPolicy.getName());
     final int numDNs = dataBlocks + parityBlocks;
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.waitActive();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithDecoding.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithDecoding.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithDecoding.java
index 4c6ad99..cb1640c 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithDecoding.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithDecoding.java
@@ -100,6 +100,8 @@ public class TestReadStripedFileWithDecoding {
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_STREAMS_HARD_LIMIT_KEY, 
0);
     conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
         false);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.getFileSystem().getClient().setErasureCodingPolicy("/",
         StripedFileTestUtil.getDefaultECPolicy().getName());

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithMissingBlocks.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithMissingBlocks.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithMissingBlocks.java
index 930986f..34cba92 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithMissingBlocks.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReadStripedFileWithMissingBlocks.java
@@ -58,6 +58,8 @@ public class TestReadStripedFileWithMissingBlocks {
   public void setup() throws IOException {
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_MAX_STREAMS_KEY, 0);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        ecPolicy.getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.getFileSystem().getClient().setErasureCodingPolicy(
         "/", ecPolicy.getName());

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReconstructStripedFile.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReconstructStripedFile.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReconstructStripedFile.java
index 88edcb4..affb541 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReconstructStripedFile.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReconstructStripedFile.java
@@ -102,6 +102,8 @@ public class TestReconstructStripedFile {
           CodecUtil.IO_ERASURECODE_CODEC_RS_RAWCODER_KEY,
           NativeRSRawErasureCoderFactory.class.getCanonicalName());
     }
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(dnNum).build();
     cluster.waitActive();
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeModeWithStripedFile.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeModeWithStripedFile.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeModeWithStripedFile.java
index 85538ba..edecbf2 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeModeWithStripedFile.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeModeWithStripedFile.java
@@ -61,6 +61,8 @@ public class TestSafeModeWithStripedFile {
     conf = new HdfsConfiguration();
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
     conf.setLong(DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_KEY, 100);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.getFileSystem().getClient().setErasureCodingPolicy("/",
         StripedFileTestUtil.getDefaultECPolicy().getName());

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestWriteReadStripedFile.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestWriteReadStripedFile.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestWriteReadStripedFile.java
index 9aac65b..9b14df1 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestWriteReadStripedFile.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestWriteReadStripedFile.java
@@ -76,6 +76,8 @@ public class TestWriteReadStripedFile {
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
     conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
         false);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     fs = cluster.getFileSystem();
     fs.mkdirs(new Path("/ec"));

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
index d9a8e5b..d2e8f44 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
@@ -1929,6 +1929,8 @@ public class TestBalancer {
     for (int i = 0; i < numOfDatanodes; i++) {
       racks[i] = "/rack" + (i % numOfRacks);
     }
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf)
         .numDataNodes(numOfDatanodes)
         .racks(racks)

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockTokenWithDFSStriped.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockTokenWithDFSStriped.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockTokenWithDFSStriped.java
index 82c9fde..54f2805 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockTokenWithDFSStriped.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockTokenWithDFSStriped.java
@@ -55,6 +55,8 @@ public class TestBlockTokenWithDFSStriped extends 
TestBlockTokenWithDFS {
   private Configuration getConf() {
     Configuration conf = super.getConf(numDNs);
     conf.setInt("io.bytes.per.checksum", cellSize);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     return conf;
   }
 
@@ -114,6 +116,8 @@ public class TestBlockTokenWithDFSStriped extends 
TestBlockTokenWithDFS {
   public void testEnd2End() throws Exception {
     Configuration conf = new Configuration();
     conf.setBoolean(DFSConfigKeys.DFS_BLOCK_ACCESS_TOKEN_ENABLE_KEY, true);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     new TestBalancer().integrationTestWithStripedFile(conf);
   }
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReconstructStripedBlocksWithRackAwareness.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReconstructStripedBlocksWithRackAwareness.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReconstructStripedBlocksWithRackAwareness.java
index 9b7c7cd..4ecfd50 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReconstructStripedBlocksWithRackAwareness.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReconstructStripedBlocksWithRackAwareness.java
@@ -146,6 +146,8 @@ public class TestReconstructStripedBlocksWithRackAwareness {
     LOG.info("cluster hosts: {}, racks: {}", Arrays.asList(hosts),
         Arrays.asList(racks));
 
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).racks(racks).hosts(hosts)
         .numDataNodes(hosts.length).build();
     cluster.waitActive();
@@ -217,6 +219,8 @@ public class TestReconstructStripedBlocksWithRackAwareness {
 
   @Test
   public void testChooseExcessReplicasToDelete() throws Exception {
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).racks(racks).hosts(hosts)
         .numDataNodes(hosts.length).build();
     cluster.waitActive();
@@ -267,6 +271,8 @@ public class TestReconstructStripedBlocksWithRackAwareness {
    */
   @Test
   public void testReconstructionWithDecommission() throws Exception {
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     final String[] rackNames = getRacks(dataBlocks + parityBlocks + 2,
         dataBlocks);
     final String[] hostNames = getHosts(dataBlocks + parityBlocks + 2);

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestSequentialBlockGroupId.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestSequentialBlockGroupId.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestSequentialBlockGroupId.java
index 3c18112..c5066a0 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestSequentialBlockGroupId.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestSequentialBlockGroupId.java
@@ -81,6 +81,8 @@ public class TestSequentialBlockGroupId {
     Configuration conf = new HdfsConfiguration();
     conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 1);
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.waitActive();
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeErasureCodingMetrics.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeErasureCodingMetrics.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeErasureCodingMetrics.java
index d36db23..ee2afbb 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeErasureCodingMetrics.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeErasureCodingMetrics.java
@@ -72,6 +72,8 @@ public class TestDataNodeErasureCodingMetrics {
     conf = new Configuration();
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.waitActive();
     cluster.getFileSystem().getClient().setErasureCodingPolicy("/",

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/mover/TestMover.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/mover/TestMover.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/mover/TestMover.java
index 0fcb275..9af61ae 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/mover/TestMover.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/mover/TestMover.java
@@ -508,6 +508,8 @@ public class TestMover {
         capacities[i][j]=capacity;
       }
     }
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
         .numDataNodes(numOfDatanodes)
         .storagesPerDatanode(storagesPerDatanode)

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddOverReplicatedStripedBlocks.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddOverReplicatedStripedBlocks.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddOverReplicatedStripedBlocks.java
index 6a4cd32..ecbf99d 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddOverReplicatedStripedBlocks.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddOverReplicatedStripedBlocks.java
@@ -76,13 +76,15 @@ public class TestAddOverReplicatedStripedBlocks {
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_MAX_STREAMS_KEY, 0);
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
     conf.setInt(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 1);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        ecPolicy.getName());
     SimulatedFSDataset.setFactory(conf);
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.waitActive();
     fs = cluster.getFileSystem();
     fs.mkdirs(dirPath);
     fs.getClient().setErasureCodingPolicy(dirPath.toString(),
-        StripedFileTestUtil.getDefaultECPolicy().getName());
+        ecPolicy.getName());
   }
 
   @After

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlockInFBR.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlockInFBR.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlockInFBR.java
index a3afa93..a4f470b 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlockInFBR.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlockInFBR.java
@@ -20,6 +20,7 @@ package org.apache.hadoop.hdfs.server.namenode;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.DFSTestUtil;
 import org.apache.hadoop.hdfs.DistributedFileSystem;
 import org.apache.hadoop.hdfs.HdfsConfiguration;
@@ -61,6 +62,8 @@ public class TestAddStripedBlockInFBR {
   @Before
   public void setup() throws IOException {
     Configuration conf = new HdfsConfiguration();
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize).build();
     cluster.waitActive();
     dfs = cluster.getFileSystem();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlocks.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlocks.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlocks.java
index 2eb23b9..555c2fa 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlocks.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAddStripedBlocks.java
@@ -19,6 +19,7 @@ package org.apache.hadoop.hdfs.server.namenode;
 
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.DFSStripedOutputStream;
 import org.apache.hadoop.hdfs.DFSTestUtil;
 import org.apache.hadoop.hdfs.DistributedFileSystem;
@@ -83,12 +84,13 @@ public class TestAddStripedBlocks {
 
   @Before
   public void setup() throws IOException {
-    cluster = new MiniDFSCluster.Builder(new HdfsConfiguration())
-        .numDataNodes(groupSize).build();
+    HdfsConfiguration conf = new HdfsConfiguration();
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        ecPolicy.getName());
+    cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize).build();
     cluster.waitActive();
     dfs = cluster.getFileSystem();
-    dfs.getClient().setErasureCodingPolicy("/",
-        StripedFileTestUtil.getDefaultECPolicy().getName());
+    dfs.getClient().setErasureCodingPolicy("/", ecPolicy.getName());
   }
 
   @After

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEnabledECPolicies.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEnabledECPolicies.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEnabledECPolicies.java
index 7f18d18..4b4b196 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEnabledECPolicies.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestEnabledECPolicies.java
@@ -70,6 +70,15 @@ public class TestEnabledECPolicies {
   }
 
   @Test
+  public void testDefaultPolicy() throws Exception {
+    HdfsConfiguration conf = new HdfsConfiguration();
+    String defaultECPolicies = conf.get(
+        DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_DEFAULT);
+    expectValidPolicy(defaultECPolicies, 0);
+  }
+
+  @Test
   public void testInvalid() throws Exception {
     // Test first with an invalid policy
     expectInvalidPolicy("not-a-policy");
@@ -90,14 +99,16 @@ public class TestEnabledECPolicies {
     expectValidPolicy(ecPolicyName, 1);
     expectValidPolicy(ecPolicyName + ", ", 1);
     expectValidPolicy(",", 0);
+    expectValidPolicy(", " + ecPolicyName, 1);
+    expectValidPolicy(" ", 0);
+    expectValidPolicy(" , ", 0);
   }
 
   @Test
   public void testGetPolicies() throws Exception {
     ErasureCodingPolicy[] enabledPolicies;
     // Enable no policies
-    enabledPolicies = new ErasureCodingPolicy[]
-        {SYSTEM_POLICIES[1], SYSTEM_POLICIES[2]};
+    enabledPolicies = new ErasureCodingPolicy[] {};
     testGetPolicies(enabledPolicies);
 
     // Enable one policy

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSEditLogLoader.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSEditLogLoader.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSEditLogLoader.java
index 104727d..4467dc1 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSEditLogLoader.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSEditLogLoader.java
@@ -458,6 +458,8 @@ public class TestFSEditLogLoader {
   public void testAddNewStripedBlock() throws IOException{
     // start a cluster
     Configuration conf = new HdfsConfiguration();
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        testECPolicy.getName());
     MiniDFSCluster cluster = null;
     try {
       cluster = new MiniDFSCluster.Builder(conf).numDataNodes(9)
@@ -531,6 +533,8 @@ public class TestFSEditLogLoader {
   public void testUpdateStripedBlocks() throws IOException{
     // start a cluster
     Configuration conf = new HdfsConfiguration();
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        testECPolicy.getName());
     MiniDFSCluster cluster = null;
     try {
       cluster = new MiniDFSCluster.Builder(conf).numDataNodes(9)

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
index b94e610..e061c5c 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
@@ -682,6 +682,8 @@ public class TestFsck {
     final int numAllUnits = dataBlocks + ecPolicy.getNumParityUnits();
     int blockSize = 2 * cellSize;
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        ecPolicy.getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(
         numAllUnits + 1).build();
     String topDir = "/myDir";
@@ -1997,6 +1999,8 @@ public class TestFsck {
     conf.setLong(DFSConfigKeys.DFS_NAMENODE_ACCESSTIME_PRECISION_KEY,
         precision);
     conf.setLong(DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_KEY, 10000L);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     int dataBlocks = 
StripedFileTestUtil.getDefaultECPolicy().getNumDataUnits();
     int parityBlocks =
         StripedFileTestUtil.getDefaultECPolicy().getNumParityUnits();
@@ -2292,6 +2296,8 @@ public class TestFsck {
         StripedFileTestUtil.getDefaultECPolicy().getNumParityUnits();
     int cellSize = StripedFileTestUtil.getDefaultECPolicy().getCellSize();
     int totalSize = dataBlocks + parityBlocks;
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf)
         .numDataNodes(totalSize).build();
     fs = cluster.getFileSystem();
@@ -2361,6 +2367,8 @@ public class TestFsck {
         StripedFileTestUtil.getDefaultECPolicy().getNumParityUnits();
     int cellSize = StripedFileTestUtil.getDefaultECPolicy().getCellSize();
     int totalSize = dataBlocks + parityBlocks;
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf)
         .numDataNodes(totalSize).build();
     fs = cluster.getFileSystem();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java
index 231f75f..ed9ed3a 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java
@@ -725,6 +725,8 @@ public class TestNameNodeMXBean {
     DistributedFileSystem fs = null;
     try {
       Configuration conf = new HdfsConfiguration();
+      conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+          StripedFileTestUtil.getDefaultECPolicy().getName());
       int dataBlocks = 
StripedFileTestUtil.getDefaultECPolicy().getNumDataUnits();
       int parityBlocks =
           StripedFileTestUtil.getDefaultECPolicy().getNumParityUnits();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestQuotaWithStripedBlocks.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestQuotaWithStripedBlocks.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestQuotaWithStripedBlocks.java
index 1e836dc..f97492b 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestQuotaWithStripedBlocks.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestQuotaWithStripedBlocks.java
@@ -65,6 +65,8 @@ public class TestQuotaWithStripedBlocks {
   public void setUp() throws IOException {
     final Configuration conf = new Configuration();
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, BLOCK_SIZE);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        ecPolicy.getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize).build();
     cluster.waitActive();
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestReconstructStripedBlocks.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestReconstructStripedBlocks.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestReconstructStripedBlocks.java
index 01a8e08..e9ff2e3 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestReconstructStripedBlocks.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestReconstructStripedBlocks.java
@@ -108,6 +108,8 @@ public class TestReconstructStripedBlocks {
       throws Exception {
     Configuration conf = new HdfsConfiguration();
     initConf(conf);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize + 1)
         .build();
 
@@ -195,6 +197,8 @@ public class TestReconstructStripedBlocks {
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY,
         1000);
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize + 2)
         .build();
     try {
@@ -260,6 +264,8 @@ public class TestReconstructStripedBlocks {
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
     conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
         false);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize + 2)
         .build();
     cluster.waitActive();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStripedINodeFile.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStripedINodeFile.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStripedINodeFile.java
index f1610b1..2c63900 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStripedINodeFile.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStripedINodeFile.java
@@ -311,6 +311,8 @@ public class TestStripedINodeFile {
       final short GROUP_SIZE = (short) (testECPolicy.getNumDataUnits() +
           testECPolicy.getNumParityUnits());
       conf.setInt(DFSConfigKeys.DFS_NAMENODE_MAX_XATTRS_PER_INODE_KEY, 2);
+      conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+          StripedFileTestUtil.getDefaultECPolicy().getName());
 
       cluster = new MiniDFSCluster.Builder(conf).numDataNodes(GROUP_SIZE)
           .build();
@@ -386,6 +388,8 @@ public class TestStripedINodeFile {
         1L);
     conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
         false);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
 
     // start 10 datanodes
     int numOfDatanodes = 10;

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7515e751/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewerWithStripedBlocks.java
----------------------------------------------------------------------
diff --git 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewerWithStripedBlocks.java
 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewerWithStripedBlocks.java
index 0bfa054..d04ef99 100644
--- 
a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewerWithStripedBlocks.java
+++ 
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewerWithStripedBlocks.java
@@ -61,6 +61,8 @@ public class TestOfflineImageViewerWithStripedBlocks {
     int numDNs = dataBlocks + parityBlocks + 2;
     Configuration conf = new Configuration();
     conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
+    conf.set(DFSConfigKeys.DFS_NAMENODE_EC_POLICIES_ENABLED_KEY,
+        StripedFileTestUtil.getDefaultECPolicy().getName());
     cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
     cluster.waitActive();
     cluster.getFileSystem().getClient().setErasureCodingPolicy("/",


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