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Posted to common-commits@hadoop.apache.org by bo...@apache.org on 2012/08/15 21:16:14 UTC
svn commit: r1373581 -
/hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java
Author: bobby
Date: Wed Aug 15 19:16:13 2012
New Revision: 1373581
URL: http://svn.apache.org/viewvc?rev=1373581&view=rev
Log:
HADOOP-8703. distcpV2: turn CRC checking off for 0 byte size (Dave Thompson via bobby)
Modified:
hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java
Modified: hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java?rev=1373581&r1=1373580&r2=1373581&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java (original)
+++ hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java Wed Aug 15 19:16:13 2012
@@ -91,7 +91,9 @@ public class RetriableFileCopyCommand ex
context, fileAttributes);
compareFileLengths(sourceFileStatus, tmpTargetPath, configuration, bytesRead);
- compareCheckSums(sourceFS, sourceFileStatus.getPath(), targetFS, tmpTargetPath);
+ //At this point, src&dest lengths are same. if length==0, we skip checksum
+ if (bytesRead != 0)
+ compareCheckSums(sourceFS, sourceFileStatus.getPath(), targetFS, tmpTargetPath);
promoteTmpToTarget(tmpTargetPath, target, targetFS);
return bytesRead;