From 1bed70fd997fda5c39666fb9313cc291e0b58dc1 Mon Sep 17 00:00:00 2001
From: Michael Stack <stack@apache.org>
Date: Fri, 9 Dec 2011 19:08:11 +0000
Subject: [PATCH] HBASE-4992 Use a UUID for HFileOutputFormat partition path
 name

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1212581 13f79535-47bb-0310-9956-ffa450edef68
---
 .../org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java b/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java
index 5150590dd80..c5222c2c78b 100644
--- a/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java
+++ b/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java
@@ -31,6 +31,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.TreeSet;
+import java.util.UUID;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -315,7 +316,7 @@ public class HFileOutputFormat extends FileOutputFormat<ImmutableBytesWritable,
     job.setNumReduceTasks(startKeys.size());
 
     Path partitionsPath = new Path(job.getWorkingDirectory(),
-        "partitions_" + System.currentTimeMillis());
+                                   "partitions_" + UUID.randomUUID());
     LOG.info("Writing partition information to " + partitionsPath);
 
     FileSystem fs = partitionsPath.getFileSystem(conf);