From 39ade134710f8861964ae375834e339c162bbcde Mon Sep 17 00:00:00 2001 From: Ashish Singhi Date: Fri, 19 Sep 2014 10:46:25 +0530 Subject: [PATCH] HBASE-5622 Improve efficiency of mapred vesion of RowCounter --- .../src/main/java/org/apache/hadoop/hbase/mapred/RowCounter.java | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mapred/RowCounter.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mapred/RowCounter.java index 5deadfc..23a0f88 100644 --- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mapred/RowCounter.java +++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mapred/RowCounter.java @@ -99,8 +99,9 @@ public class RowCounter extends Configured implements Tool { } static int printUsage() { - System.out.println(NAME + - " [...]"); + System.out.println(NAME + " [...]\n"); + System.err.println("For performance consider the following options:\n" + + "-Dmapreduce.map.speculative=false"); return -1; } -- 1.9.2.msysgit.0