diff --git a/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java b/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java
index cf44af5675..ede65c6283 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java
@@ -421,7 +421,7 @@ public void receivedNewWrite(DFSClient dfsClient, WRITE3Request request,
       if (existantWriteCtx != null) {
         if (!existantWriteCtx.getReplied()) {
           if (LOG.isDebugEnabled()) {
-            LOG.debug("Repeated write request which hasn't be served: xid="
+            LOG.debug("Repeated write request which hasn't been served: xid="
                 + xid + ", drop it.");
           }
         } else {
@@ -579,7 +579,7 @@ private void processOverWrite(DFSClient dfsClient, WRITE3Request request,
    * writing, and there is no other threads writing (i.e., asyncStatus is
    * false), start the writing and set asyncStatus to true.
    * 
-   * @return True if the new write is sequencial and we can start writing
+   * @return True if the new write is sequential and we can start writing
    *         (including the case that there is already a thread writing).
    */
   private synchronized boolean checkAndStartWrite(
@@ -898,7 +898,7 @@ private synchronized WriteCtx offerNextToWrite() {
       long offset = nextOffset.get();
       if (range.getMin() > offset) {
         if (LOG.isDebugEnabled()) {
-          LOG.debug("The next sequencial write has not arrived yet");
+          LOG.debug("The next sequential write has not arrived yet");
         }
         processCommits(nextOffset.get()); // handle race
         this.asyncStatus = false;
diff --git a/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java b/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java
index 33dc3a3d5a..0d591d6396 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java
@@ -1423,7 +1423,7 @@ private DirectoryListing listPaths(DFSClient dfsClient, String dirFileIdPath,
         throw io;
       }
       // This happens when startAfter was just deleted
-      LOG.info("Cookie cound't be found: " + new String(startAfter)
+      LOG.info("Cookie couldn't be found: " + new String(startAfter)
           + ", do listing from beginning");
       dlisting = dfsClient
           .listPaths(dirFileIdPath, HdfsFileStatus.EMPTY_NAME);
diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index ae66b0d1ca..2258008336 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -585,6 +585,8 @@ Release 2.6.0 - UNRELEASED
     HDFS-6972. TestRefreshUserMappings.testRefreshSuperUserGroupsConfiguration
     doesn't decode url correctly. (Yongjun Zhang via wang)
 
+    HDFS-6942. Fix typos in log messages. (Ray Chiang via wheat9)
+
     BREAKDOWN OF HDFS-6134 AND HADOOP-10150 SUBTASKS AND RELATED JIRAS
   
       HDFS-6387. HDFS CLI admin tool for creating & deleting an
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
index 7edffa4cbb..381062171b 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
@@ -1744,7 +1744,7 @@ private class DataTransfer implements Runnable {
             + b + " (numBytes=" + b.getNumBytes() + ")"
             + ", stage=" + stage
             + ", clientname=" + clientname
-            + ", targests=" + Arrays.asList(targets));
+            + ", targets=" + Arrays.asList(targets));
       }
       this.targets = targets;
       this.targetStorageTypes = targetStorageTypes;
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileAppend4.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileAppend4.java
index b685a895f2..32a41966dc 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileAppend4.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileAppend4.java
@@ -125,7 +125,7 @@ private void recoverFile(final FileSystem fs) throws Exception {
     while (!recovered && tries-- > 0) {
       try {
         out = fs.append(file1);
-        LOG.info("Successfully opened for appends");
+        LOG.info("Successfully opened for append");
         recovered = true;
       } catch (IOException e) {
         LOG.info("Failed open for append, waiting on lease recovery");
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStartup.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStartup.java
index db8b3a9408..8b903af3fc 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStartup.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStartup.java
@@ -441,7 +441,7 @@ public void testCompression() throws IOException {
     checkNameSpace(conf);
 
     // read an image compressed in Gzip and store it uncompressed
-    LOG.info("Read an compressed iamge and store it as uncompressed.");
+    LOG.info("Read a compressed image and store it as uncompressed.");
     conf.setBoolean(DFSConfigKeys.DFS_IMAGE_COMPRESS_KEY, false);
     checkNameSpace(conf);