diff --git a/CHANGES.txt b/CHANGES.txt
index cd189984eec..3429eeb5fbb 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -548,6 +548,9 @@ Release 0.21.1 - Unreleased
 
     HADOOP-6786. test-patch needs to verify Herriot integrity (cos)
 
+    HADOOP-7177. CodecPool should report which compressor it is using.
+    (Allen Wittenauer via eli)
+
   BUG FIXES
 
     HADOOP-6925. BZip2Codec incorrectly implements read(). 
diff --git a/src/java/org/apache/hadoop/io/compress/CodecPool.java b/src/java/org/apache/hadoop/io/compress/CodecPool.java
index bf1eec54bac..d878f62ebf7 100644
--- a/src/java/org/apache/hadoop/io/compress/CodecPool.java
+++ b/src/java/org/apache/hadoop/io/compress/CodecPool.java
@@ -104,7 +104,7 @@ public class CodecPool {
     Compressor compressor = borrow(compressorPool, codec.getCompressorType());
     if (compressor == null) {
       compressor = codec.createCompressor();
-      LOG.info("Got brand-new compressor");
+      LOG.info("Got brand-new compressor ["+codec.getDefaultExtension()+"]");
     } else {
       compressor.reinit(conf);
       if(LOG.isDebugEnabled()) {
@@ -131,7 +131,7 @@ public class CodecPool {
     Decompressor decompressor = borrow(decompressorPool, codec.getDecompressorType());
     if (decompressor == null) {
       decompressor = codec.createDecompressor();
-      LOG.info("Got brand-new decompressor");
+      LOG.info("Got brand-new decompressor ["+codec.getDefaultExtension()+"]");
     } else {
       if(LOG.isDebugEnabled()) {
         LOG.debug("Got recycled decompressor");