[MAPREDUCE-806] WordCount example does not compile given the current instructions

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Incomplete
• Affects Version/s: 0.20.1
• Component/s: examples

Environment

linux

• Tags: example wordcount
• Assignee: Unassigned
• Reporter: Hector Yuen
• Created: 26/Jul/09 07:47
• Updated: 23/Jul/14 20:30
• Resolved: 23/Jul/14 20:30

Description

http://hadoop.apache.org/common/docs/r0.20.0/mapred_tutorial.html#Example%3A+WordCount+v1.0

In this example, the classpath is missing commons-cli-2.0-SNAPSHOT.jar

If we compile according to the instructions:

$ javac -classpath /hadoop/core/hadoop-0.20.0-core.jar -d ioperf_classes/ src/WordCount.java
src/WordCount.java:54: cannot access org.apache.commons.cli.Options
class file for org.apache.commons.cli.Options not found
String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();

The correct compilation should be

$ javac -classpath /hadoop/core/hadoop-0.20.0-core.jar:/hadoop/core/lib/commons-cli-2.0-SNAPSHOT.jar -d ioperf_classes/ src/WordCount.java