HDFS-6315. Decouple recording edit logs from FSDirectory. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1601960 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -485,6 +485,8 @@ Release 2.5.0 - UNRELEASED
     HDFS-6399. Add note about setfacl in HDFS permissions guide.
     (cnauroth via wang)
 
+    HDFS-6315. Decouple recording edit logs from FSDirectory. (wheat9)
+
   OPTIMIZATIONS
 
     HDFS-6214. Webhdfs has poor throughput for files >2GB (daryn)

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java

@@ -50,7 +50,6 @@ import org.apache.hadoop.fs.permission.PermissionStatus;
 import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.DFSUtil;
 import org.apache.hadoop.hdfs.DistributedFileSystem;
-import org.apache.hadoop.hdfs.XAttrHelper;
 import org.apache.hadoop.hdfs.protocol.AclException;
 import org.apache.hadoop.hdfs.protocol.Block;
 import org.apache.hadoop.hdfs.protocol.ClientProtocol;
@@ -265,11 +264,6 @@ public class FSDirectory implements Closeable {
     ready = flag;
   }
 
-  private void incrDeletedFileCount(long count) {
-    if (getFSNamesystem() != null)
-      NameNode.getNameNodeMetrics().incrFilesDeleted(count);
-  }
-    
   /**
    * Shutdown the filestore
    */
@@ -436,65 +430,6 @@ public class FSDirectory implements Closeable {
     }
   }
 
-  /**
-   * Persist the block list for the inode.
-   */
-  void persistBlocks(String path, INodeFile file, boolean logRetryCache) {
-    Preconditions.checkArgument(file.isUnderConstruction());
-    waitForReady();
-
-    writeLock();
-    try {
-      fsImage.getEditLog().logUpdateBlocks(path, file, logRetryCache);
-      if(NameNode.stateChangeLog.isDebugEnabled()) {
-        NameNode.stateChangeLog.debug("DIR* FSDirectory.persistBlocks: "
-            +path+" with "+ file.getBlocks().length 
-            +" blocks is persisted to the file system");
-      }
-    } finally {
-      writeUnlock();
-    }
-  }
-  
-  /**
-   * Persist the new block (the last block of the given file).
-   */
-  void persistNewBlock(String path, INodeFile file) {
-    Preconditions.checkArgument(file.isUnderConstruction());
-    waitForReady();
-
-    writeLock();
-    try {
-      fsImage.getEditLog().logAddBlock(path, file);
-    } finally {
-      writeUnlock();
-    }
-    if (NameNode.stateChangeLog.isDebugEnabled()) {
-      NameNode.stateChangeLog.debug("DIR* FSDirectory.persistNewBlock: "
-          + path + " with new block " + file.getLastBlock().toString()
-          + ", current total block count is " + file.getBlocks().length);
-    }
-  }
-  
-  /**
-   * Close file.
-   */
-  void closeFile(String path, INodeFile file) {
-    waitForReady();
-    writeLock();
-    try {
-      // file is closed
-      fsImage.getEditLog().logCloseFile(path, file);
-      if (NameNode.stateChangeLog.isDebugEnabled()) {
-        NameNode.stateChangeLog.debug("DIR* FSDirectory.closeFile: "
-            +path+" with "+ file.getBlocks().length 
-            +" blocks is persisted to the file system");
-      }
-    } finally {
-      writeUnlock();
-    }
-  }
-
   /**
    * Remove a block from the file.
    * @return Whether the block exists in the corresponding file
@@ -540,7 +475,7 @@ public class FSDirectory implements Closeable {
    * @deprecated Use {@link #renameTo(String, String, boolean, Rename...)}
    */
   @Deprecated
-  boolean renameTo(String src, String dst, boolean logRetryCache) 
+  boolean renameTo(String src, String dst, long mtime)
       throws QuotaExceededException, UnresolvedLinkException, 
       FileAlreadyExistsException, SnapshotAccessControlException, IOException {
     if (NameNode.stateChangeLog.isDebugEnabled()) {
@@ -548,22 +483,20 @@ public class FSDirectory implements Closeable {
           +src+" to "+dst);
     }
     waitForReady();
-    long now = now();
     writeLock();
     try {
-      if (!unprotectedRenameTo(src, dst, now))
+      if (!unprotectedRenameTo(src, dst, mtime))
         return false;
     } finally {
       writeUnlock();
     }
-    fsImage.getEditLog().logRename(src, dst, now, logRetryCache);
     return true;
   }
 
   /**
    * @see #unprotectedRenameTo(String, String, long, Options.Rename...)
    */
-  void renameTo(String src, String dst, boolean logRetryCache, 
+  void renameTo(String src, String dst, long mtime,
       Options.Rename... options)
       throws FileAlreadyExistsException, FileNotFoundException,
       ParentNotDirectoryException, QuotaExceededException,
@@ -573,16 +506,14 @@ public class FSDirectory implements Closeable {
           + " to " + dst);
     }
     waitForReady();
-    long now = now();
     writeLock();
     try {
-      if (unprotectedRenameTo(src, dst, now, options)) {
+      if (unprotectedRenameTo(src, dst, mtime, options)) {
-        incrDeletedFileCount(1);
+        namesystem.incrDeletedFileCount(1);
       }
     } finally {
       writeUnlock();
     }
-    fsImage.getEditLog().logRename(src, dst, now, logRetryCache, options);
   }
 
   /**
@@ -1106,11 +1037,7 @@ public class FSDirectory implements Closeable {
     waitForReady();
     writeLock();
     try {
-      final Block[] fileBlocks = unprotectedSetReplication(
+      return unprotectedSetReplication(src, replication, blockRepls);
-          src, replication, blockRepls);
-      if (fileBlocks != null)  // log replication change
-        fsImage.getEditLog().logSetReplication(src, replication);
-      return fileBlocks;
     } finally {
       writeUnlock();
     }
@@ -1178,7 +1105,6 @@ public class FSDirectory implements Closeable {
     } finally {
       writeUnlock();
     }
-    fsImage.getEditLog().logSetPermissions(src, permission);
   }
   
   void unprotectedSetPermission(String src, FsPermission permissions)
@@ -1203,7 +1129,6 @@ public class FSDirectory implements Closeable {
     } finally {
       writeUnlock();
     }
-    fsImage.getEditLog().logSetOwner(src, username, groupname);
   }
 
   void unprotectedSetOwner(String src, String username, String groupname)
@@ -1226,18 +1151,14 @@ public class FSDirectory implements Closeable {
   /**
    * Concat all the blocks from srcs to trg and delete the srcs files
    */
-  void concat(String target, String [] srcs, boolean supportRetryCache) 
+  void concat(String target, String[] srcs, long timestamp)
       throws UnresolvedLinkException, QuotaExceededException,
       SnapshotAccessControlException, SnapshotException {
     writeLock();
     try {
       // actual move
       waitForReady();
-      long timestamp = now();
       unprotectedConcat(target, srcs, timestamp);
-      // do the commit
-      fsImage.getEditLog().logConcat(target, srcs, timestamp, 
-          supportRetryCache);
     } finally {
       writeUnlock();
     }
@@ -1312,17 +1233,14 @@ public class FSDirectory implements Closeable {
    * @param src Path of a directory to delete
    * @param collectedBlocks Blocks under the deleted directory
    * @param removedINodes INodes that should be removed from {@link #inodeMap}
-   * @param logRetryCache Whether to record RPC IDs in editlog to support retry
+   * @return the number of files that have been removed
-   *                      cache rebuilding.
-   * @return true on successful deletion; else false
    */
-  boolean delete(String src, BlocksMapUpdateInfo collectedBlocks,
+  long delete(String src, BlocksMapUpdateInfo collectedBlocks,
-      List<INode> removedINodes, boolean logRetryCache) throws IOException {
+              List<INode> removedINodes, long mtime) throws IOException {
     if (NameNode.stateChangeLog.isDebugEnabled()) {
       NameNode.stateChangeLog.debug("DIR* FSDirectory.delete: " + src);
     }
     waitForReady();
-    long now = now();
     final long filesRemoved;
     writeLock();
     try {
@@ -1335,20 +1253,13 @@ public class FSDirectory implements Closeable {
             new ArrayList<INodeDirectorySnapshottable>();
         checkSnapshot(inodesInPath.getLastINode(), snapshottableDirs);
         filesRemoved = unprotectedDelete(inodesInPath, collectedBlocks,
-            removedINodes, now);
+            removedINodes, mtime);
         namesystem.removeSnapshottableDirs(snapshottableDirs);
       }
     } finally {
       writeUnlock();
     }
-    if (filesRemoved < 0) {
+    return filesRemoved;
-      return false;
-    }
-    fsImage.getEditLog().logDelete(src, now, logRetryCache);
-    incrDeletedFileCount(filesRemoved);
-    // Blocks/INodes will be handled later by the caller of this method
-    getFSNamesystem().removePathAndBlocks(src, null, null);
-    return true;
   }
   
   private static boolean deleteAllowed(final INodesInPath iip,
@@ -2470,21 +2381,17 @@ public class FSDirectory implements Closeable {
   
   /**
    * See {@link ClientProtocol#setQuota(String, long, long)} for the contract.
+   * @return INodeDirectory if any of the quotas have changed. null otherwise.
    * @throws SnapshotAccessControlException if path is in RO snapshot
    * @see #unprotectedSetQuota(String, long, long)
    */
-  void setQuota(String src, long nsQuota, long dsQuota) 
+  INodeDirectory setQuota(String src, long nsQuota, long dsQuota)
       throws FileNotFoundException, PathIsNotDirectoryException,
       QuotaExceededException, UnresolvedLinkException,
       SnapshotAccessControlException {
     writeLock();
     try {
-      INodeDirectory dir = unprotectedSetQuota(src, nsQuota, dsQuota);
+      return unprotectedSetQuota(src, nsQuota, dsQuota);
-      if (dir != null) {
-        final Quota.Counts q = dir.getQuotaCounts();
-        fsImage.getEditLog().logSetQuota(src,
-            q.get(Quota.NAMESPACE), q.get(Quota.DISKSPACE));
-      }
     } finally {
       writeUnlock();
     }
@@ -2503,18 +2410,14 @@ public class FSDirectory implements Closeable {
   /**
    * Sets the access time on the file/directory. Logs it in the transaction log.
    */
-  void setTimes(String src, INode inode, long mtime, long atime, boolean force,
+  boolean setTimes(INode inode, long mtime, long atime, boolean force,
                    int latestSnapshotId) throws QuotaExceededException {
-    boolean status = false;
     writeLock();
     try {
-      status = unprotectedSetTimes(inode, mtime, atime, force, latestSnapshotId);
+      return unprotectedSetTimes(inode, mtime, atime, force, latestSnapshotId);
     } finally {
       writeUnlock();
     }
-    if (status) {
-      fsImage.getEditLog().logTimes(src, mtime, atime);
-    }
   }
 
   boolean unprotectedSetTimes(String src, long mtime, long atime, boolean force) 
@@ -2730,11 +2633,10 @@ public class FSDirectory implements Closeable {
     return addINode(path, symlink) ? symlink : null;
   }
 
-  void modifyAclEntries(String src, List<AclEntry> aclSpec) throws IOException {
+  List<AclEntry> modifyAclEntries(String src, List<AclEntry> aclSpec) throws IOException {
     writeLock();
     try {
-      List<AclEntry> newAcl = unprotectedModifyAclEntries(src, aclSpec);
+      return unprotectedModifyAclEntries(src, aclSpec);
-      fsImage.getEditLog().logSetAcl(src, newAcl);
     } finally {
       writeUnlock();
     }
@@ -2753,11 +2655,10 @@ public class FSDirectory implements Closeable {
     return newAcl;
   }
 
-  void removeAclEntries(String src, List<AclEntry> aclSpec) throws IOException {
+  List<AclEntry> removeAclEntries(String src, List<AclEntry> aclSpec) throws IOException {
     writeLock();
     try {
-      List<AclEntry> newAcl = unprotectedRemoveAclEntries(src, aclSpec);
+      return unprotectedRemoveAclEntries(src, aclSpec);
-      fsImage.getEditLog().logSetAcl(src, newAcl);
     } finally {
       writeUnlock();
     }
@@ -2776,11 +2677,10 @@ public class FSDirectory implements Closeable {
     return newAcl;
   }
 
-  void removeDefaultAcl(String src) throws IOException {
+  List<AclEntry> removeDefaultAcl(String src) throws IOException {
     writeLock();
     try {
-      List<AclEntry> newAcl = unprotectedRemoveDefaultAcl(src);
+      return unprotectedRemoveDefaultAcl(src);
-      fsImage.getEditLog().logSetAcl(src, newAcl);
     } finally {
       writeUnlock();
     }
@@ -2803,7 +2703,6 @@ public class FSDirectory implements Closeable {
     writeLock();
     try {
       unprotectedRemoveAcl(src);
-      fsImage.getEditLog().logSetAcl(src, AclFeature.EMPTY_ENTRY_LIST);
     } finally {
       writeUnlock();
     }
@@ -2817,11 +2716,10 @@ public class FSDirectory implements Closeable {
     AclStorage.removeINodeAcl(inode, snapshotId);
   }
 
-  void setAcl(String src, List<AclEntry> aclSpec) throws IOException {
+  List<AclEntry> setAcl(String src, List<AclEntry> aclSpec) throws IOException {
     writeLock();
     try {
-      List<AclEntry> newAcl = unprotectedSetAcl(src, aclSpec);
+      return unprotectedSetAcl(src, aclSpec);
-      fsImage.getEditLog().logSetAcl(src, newAcl);
     } finally {
       writeUnlock();
     }
@@ -2869,17 +2767,10 @@ public class FSDirectory implements Closeable {
     }
   }
 
-  void removeXAttr(String src, XAttr xAttr) throws IOException {
+  XAttr removeXAttr(String src, XAttr xAttr) throws IOException {
     writeLock();
     try {
-      XAttr removedXAttr = unprotectedRemoveXAttr(src, xAttr);
+      return unprotectedRemoveXAttr(src, xAttr);
-      if (removedXAttr != null) {
-        fsImage.getEditLog().logRemoveXAttr(src, removedXAttr);
-      } else {
-        NameNode.stateChangeLog.info("DIR* FSDirectory.removeXAttr: XAttr " +
-        		XAttrHelper.getPrefixName(xAttr) + 
-        		" does not exist on the path " + src);
-      }
     } finally {
       writeUnlock();
     }
@@ -2917,12 +2808,11 @@ public class FSDirectory implements Closeable {
     return xAttrs;
   }
   
-  void setXAttr(String src, XAttr xAttr, EnumSet<XAttrSetFlag> flag,
+  void setXAttr(String src, XAttr xAttr, EnumSet<XAttrSetFlag> flag)
-      boolean logRetryCache) throws IOException {
+          throws IOException {
     writeLock();
     try {
       unprotectedSetXAttr(src, xAttr, flag);
-      fsImage.getEditLog().logSetXAttr(src, xAttr, logRetryCache);
     } finally {
       writeUnlock();
     }

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java

@@ -145,7 +145,6 @@ import org.apache.hadoop.hdfs.DFSUtil;
 import org.apache.hadoop.hdfs.HAUtil;
 import org.apache.hadoop.hdfs.HdfsConfiguration;
 import org.apache.hadoop.hdfs.StorageType;
-import org.apache.hadoop.hdfs.XAttrHelper;
 import org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException;
 import org.apache.hadoop.hdfs.protocol.Block;
 import org.apache.hadoop.hdfs.protocol.CacheDirectiveEntry;
@@ -1567,6 +1566,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       src = FSDirectory.resolvePath(src, pathComponents, dir);
       checkOwner(pc, src);
       dir.setPermission(src, permission);
+      getEditLog().logSetPermissions(src, permission);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -1612,6 +1612,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
         }
       }
       dir.setOwner(src, username, group);
+      getEditLog().logSetOwner(src, username, group);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -1742,7 +1743,11 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
             if (isReadOp) {
               continue;
             }
-            dir.setTimes(src, inode, -1, now, false, iip.getLatestSnapshotId());
+            boolean changed = dir.setTimes(inode, -1, now, false,
+                    iip.getLatestSnapshotId());
+            if (changed) {
+              getEditLog().logTimes(src, -1, now);
+            }
           }
         }
         final long fileSize = iip.isSnapshot() ?
@@ -1953,7 +1958,9 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
           Arrays.toString(srcs) + " to " + target);
     }
 
-    dir.concat(target,srcs, logRetryCache);
+    long timestamp = now();
+    dir.concat(target, srcs, timestamp);
+    getEditLog().logConcat(target, srcs, timestamp, logRetryCache);
   }
   
   /**
@@ -1994,7 +2001,11 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       final INodesInPath iip = dir.getINodesInPath4Write(src);
       final INode inode = iip.getLastINode();
       if (inode != null) {
-        dir.setTimes(src, inode, mtime, atime, true, iip.getLatestSnapshotId());
+        boolean changed = dir.setTimes(inode, mtime, atime, true,
+                iip.getLatestSnapshotId());
+        if (changed) {
+          getEditLog().logTimes(src, mtime, atime);
+        }
         resultingStat = getAuditFileInfo(src, false);
       } else {
         throw new FileNotFoundException("File/Directory " + src + " does not exist.");
@@ -2115,6 +2126,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       final Block[] blocks = dir.setReplication(src, replication, blockRepls);
       isFile = blocks != null;
       if (isFile) {
+        getEditLog().logSetReplication(src, replication);
         blockManager.setReplication(blockRepls[0], blockRepls[1], src, blocks);
       }
     } finally {
@@ -2740,7 +2752,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       INodesInPath inodesInPath = INodesInPath.fromINode(pendingFile);
       saveAllocatedBlock(src, inodesInPath, newBlock, targets);
 
-      dir.persistNewBlock(src, pendingFile);
+      persistNewBlock(src, pendingFile);
       offset = pendingFile.computeFileSize();
     } finally {
       writeUnlock();
@@ -2960,7 +2972,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
         NameNode.stateChangeLog.debug("BLOCK* NameSystem.abandonBlock: "
                                       + b + " is removed from pendingCreates");
       }
-      dir.persistBlocks(src, file, false);
+      persistBlocks(src, file, false);
     } finally {
       writeUnlock();
     }
@@ -3260,7 +3272,9 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
           false, false);
     }
 
-    if (dir.renameTo(src, dst, logRetryCache)) {
+    long mtime = now();
+    if (dir.renameTo(src, dst, mtime)) {
+      getEditLog().logRename(src, dst, mtime, logRetryCache);
       return true;
     }
     return false;
@@ -3325,7 +3339,9 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
           false);
     }
 
-    dir.renameTo(src, dst, logRetryCache, options);
+    long mtime = now();
+    dir.renameTo(src, dst, mtime, options);
+    getEditLog().logRename(src, dst, mtime, logRetryCache, options);
   }
   
   /**
@@ -3408,10 +3424,17 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
         checkPermission(pc, src, false, null, FsAction.WRITE, null,
             FsAction.ALL, true, false);
       }
+      long mtime = now();
       // Unlink the target directory from directory tree
-      if (!dir.delete(src, collectedBlocks, removedINodes, logRetryCache)) {
+      long filesRemoved = dir.delete(src, collectedBlocks, removedINodes,
+              mtime);
+      if (filesRemoved < 0) {
         return false;
       }
+      getEditLog().logDelete(src, mtime, logRetryCache);
+      incrDeletedFileCount(filesRemoved);
+      // Blocks/INodes will be handled later
+      removePathAndBlocks(src, null, null);
       ret = true;
     } finally {
       writeUnlock();
@@ -3729,7 +3752,12 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     try {
       checkOperation(OperationCategory.WRITE);
       checkNameNodeSafeMode("Cannot set quota on " + path);
-      dir.setQuota(path, nsQuota, dsQuota);
+      INodeDirectory changed = dir.setQuota(path, nsQuota, dsQuota);
+      if (changed != null) {
+        final Quota.Counts q = changed.getQuotaCounts();
+        getEditLog().logSetQuota(path,
+                q.get(Quota.NAMESPACE), q.get(Quota.DISKSPACE));
+      }
     } finally {
       writeUnlock();
     }
@@ -3770,7 +3798,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
         pendingFile.getFileUnderConstructionFeature().updateLengthOfLastBlock(
             pendingFile, lastBlockLength);
       }
-      dir.persistBlocks(src, pendingFile, false);
+      persistBlocks(src, pendingFile, false);
     } finally {
       writeUnlock();
     }
@@ -3963,7 +3991,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     final INodeFile newFile = pendingFile.toCompleteFile(now());
 
     // close file and persist block allocations for this file
-    dir.closeFile(src, newFile);
+    closeFile(src, newFile);
 
     blockManager.checkReplication(newFile);
   }
@@ -4114,7 +4142,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
         src = closeFileCommitBlocks(iFile, storedBlock);
       } else {
         // If this commit does not want to close the file, persist blocks
-        src = persistBlocks(iFile, false);
+        src = iFile.getFullPathName();
+        persistBlocks(src, iFile, false);
       }
     } finally {
       writeUnlock();
@@ -4152,21 +4181,6 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     return src;
   }
 
-  /**
-   * Persist the block list for the given file.
-   *
-   * @param pendingFile
-   * @return Path to the given file.
-   * @throws IOException
-   */
-  @VisibleForTesting
-  String persistBlocks(INodeFile pendingFile, boolean logRetryCache)
-      throws IOException {
-    String src = pendingFile.getFullPathName();
-    dir.persistBlocks(src, pendingFile, logRetryCache);
-    return src;
-  }
-
   /**
    * Renew the lease(s) held by the given client
    */
@@ -4350,6 +4364,45 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     hasResourcesAvailable = nnResourceChecker.hasAvailableDiskSpace();
   }
 
+  /**
+   * Persist the block list for the inode.
+   * @param path
+   * @param file
+   * @param logRetryCache
+   */
+  private void persistBlocks(String path, INodeFile file,
+                             boolean logRetryCache) {
+    assert hasWriteLock();
+    Preconditions.checkArgument(file.isUnderConstruction());
+    getEditLog().logUpdateBlocks(path, file, logRetryCache);
+    if(NameNode.stateChangeLog.isDebugEnabled()) {
+      NameNode.stateChangeLog.debug("persistBlocks: " + path
+              + " with " + file.getBlocks().length + " blocks is persisted to" +
+              " the file system");
+    }
+  }
+
+  void incrDeletedFileCount(long count) {
+    NameNode.getNameNodeMetrics().incrFilesDeleted(count);
+  }
+
+  /**
+   * Close file.
+   * @param path
+   * @param file
+   */
+  private void closeFile(String path, INodeFile file) {
+    assert hasWriteLock();
+    dir.waitForReady();
+    // file is closed
+    getEditLog().logCloseFile(path, file);
+    if (NameNode.stateChangeLog.isDebugEnabled()) {
+      NameNode.stateChangeLog.debug("closeFile: "
+              +path+" with "+ file.getBlocks().length
+              +" blocks is persisted to the file system");
+    }
+  }
+
   /**
    * Periodically calls hasAvailableResources of NameNodeResourceChecker, and if
    * there are found to be insufficient resources available, causes the NN to
@@ -4682,6 +4735,21 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     getBlockManager().getDatanodeManager().setBalancerBandwidth(bandwidth);
   }
 
+  /**
+   * Persist the new block (the last block of the given file).
+   * @param path
+   * @param file
+   */
+  private void persistNewBlock(String path, INodeFile file) {
+    Preconditions.checkArgument(file.isUnderConstruction());
+    getEditLog().logAddBlock(path, file);
+    if (NameNode.stateChangeLog.isDebugEnabled()) {
+      NameNode.stateChangeLog.debug("persistNewBlock: "
+              + path + " with new block " + file.getLastBlock().toString()
+              + ", current total block count is " + file.getBlocks().length);
+    }
+  }
+
   /**
    * SafeModeInfo contains information related to the safe mode.
    * <p>
@@ -6090,7 +6158,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
     blockinfo.setExpectedLocations(storages);
 
     String src = pendingFile.getFullPathName();
-    dir.persistBlocks(src, pendingFile, logRetryCache);
+    persistBlocks(src, pendingFile, logRetryCache);
   }
 
   // rename was successful. If any part of the renamed subtree had
@@ -7718,7 +7786,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       checkNameNodeSafeMode("Cannot modify ACL entries on " + src);
       src = FSDirectory.resolvePath(src, pathComponents, dir);
       checkOwner(pc, src);
-      dir.modifyAclEntries(src, aclSpec);
+      List<AclEntry> newAcl = dir.modifyAclEntries(src, aclSpec);
+      getEditLog().logSetAcl(src, newAcl);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -7739,7 +7808,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       checkNameNodeSafeMode("Cannot remove ACL entries on " + src);
       src = FSDirectory.resolvePath(src, pathComponents, dir);
       checkOwner(pc, src);
-      dir.removeAclEntries(src, aclSpec);
+      List<AclEntry> newAcl = dir.removeAclEntries(src, aclSpec);
+      getEditLog().logSetAcl(src, newAcl);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -7760,7 +7830,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       checkNameNodeSafeMode("Cannot remove default ACL entries on " + src);
       src = FSDirectory.resolvePath(src, pathComponents, dir);
       checkOwner(pc, src);
-      dir.removeDefaultAcl(src);
+      List<AclEntry> newAcl = dir.removeDefaultAcl(src);
+      getEditLog().logSetAcl(src, newAcl);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -7782,6 +7853,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       src = FSDirectory.resolvePath(src, pathComponents, dir);
       checkOwner(pc, src);
       dir.removeAcl(src);
+      getEditLog().logSetAcl(src, AclFeature.EMPTY_ENTRY_LIST);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -7802,7 +7874,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
       checkNameNodeSafeMode("Cannot set ACL on " + src);
       src = FSDirectory.resolvePath(src, pathComponents, dir);
       checkOwner(pc, src);
-      dir.setAcl(src, aclSpec);
+      List<AclEntry> newAcl = dir.setAcl(src, aclSpec);
+      getEditLog().logSetAcl(src, newAcl);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -7878,7 +7951,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
         checkOwner(pc, src);
         checkPathAccess(pc, src, FsAction.WRITE);
       }
-      dir.setXAttr(src, xAttr, flag, logRetryCache);
+      dir.setXAttr(src, xAttr, flag);
+      getEditLog().logSetXAttr(src, xAttr, logRetryCache);
       resultingStat = getAuditFileInfo(src, false);
     } finally {
       writeUnlock();
@@ -7999,7 +8073,10 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
         checkPathAccess(pc, src, FsAction.WRITE);
       }
       
-      dir.removeXAttr(src, xAttr);
+      XAttr removedXAttr = dir.removeXAttr(src, xAttr);
+      if (removedXAttr != null) {
+        getEditLog().logRemoveXAttr(src, removedXAttr);
+      }
       resultingStat = getAuditFileInfo(src, false);
     } catch (AccessControlException e) {
       logAuditEvent(false, "removeXAttr", src);

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestCommitBlockSynchronization.java

@@ -62,8 +62,6 @@ public class TestCommitBlockSynchronization {
     doReturn(blockInfo).when(namesystemSpy).getStoredBlock(any(Block.class));
     doReturn("").when(namesystemSpy).closeFileCommitBlocks(
         any(INodeFile.class), any(BlockInfo.class));
-    doReturn("").when(namesystemSpy).persistBlocks(
-        any(INodeFile.class), anyBoolean());
     doReturn(mock(FSEditLog.class)).when(namesystemSpy).getEditLog();
 
     return namesystemSpy;

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsLimits.java

@@ -209,7 +209,7 @@ public class TestFsLimits {
     lazyInitFSDirectory();
     Class<?> generated = null;
     try {
-      fs.renameTo(src, dst, false, new Rename[] { });
+      fs.renameTo(src, dst, now(), new Rename[] { });
     } catch (Throwable e) {
       generated = e.getClass();
     }
@@ -222,7 +222,7 @@ public class TestFsLimits {
     lazyInitFSDirectory();
     Class<?> generated = null;
     try {
-      fs.renameTo(src, dst, false);
+      fs.renameTo(src, dst, now());
     } catch (Throwable e) {
       generated = e.getClass();
     }