HDFS-4214. OfflineEditsViewer should print out the offset at which it encountered an error. Contributed by Colin Patrick McCabe.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1414505 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -120,6 +120,9 @@ Release 2.0.3-alpha - Unreleased
     HDFS-4038. Override toString() for BookKeeperEditLogInputStream.
     (Vinay via umamahesh)
 
+    HDFS-4214. OfflineEditsViewer should print out the offset at which it
+    encountered an error. (Colin Patrick McCabe via atm)
+
   OPTIMIZATIONS
 
   BUG FIXES 

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineEditsViewer/OfflineEditsBinaryLoader.java

@@ -79,6 +79,7 @@ class OfflineEditsBinaryLoader implements OfflineEditsLoader {
       } catch (IOException e) {
         if (!recoveryMode) {
           // Tell the visitor to clean up, then re-throw the exception
+          LOG.error("Got IOException at position " + inputStream.getPosition());
           visitor.close(e);
           throw e;
         }
@@ -87,6 +88,7 @@ class OfflineEditsBinaryLoader implements OfflineEditsLoader {
       } catch (RuntimeException e) {
         if (!recoveryMode) {
           // Tell the visitor to clean up, then re-throw the exception
+          LOG.error("Got RuntimeException at position " + inputStream.getPosition());
           visitor.close(e);
           throw e;
         }