I am facing problem in pig mapreduce, i have inatalled pig -0.16.0 and hadoop-1.2.1 but during starting pig -x mapreduce , following error occurs , please suggest me what is wrong.

[#1]

hduser@atl-Latitude-E6410:~$ cd /usr/lib/pig/pig-0.16.0/ hduser@atl-Latitude-E6410:/usr/lib/pig/pig-0.16.0$ bin/pig -x mapreduce 16/07/03 16:07:37 INFO pig.ExecTypeProvider: Trying ExecType : LOCAL 16/07/03 16:07:37 INFO pig.ExecTypeProvider: Trying ExecType : MAPREDUCE 16/07/03 16:07:37 INFO pig.ExecTypeProvider: Picked MAPREDUCE as the ExecType 16/07/03 16:07:37 WARN pig.Main: Cannot write to log file: /usr/lib/pig/pig-0.16.0/pig_1467542257885.log 2016-07-03 16:07:37,890 [main] INFO org.apache.pig.Main - Apache Pig version 0.16.0 (r1746530) compiled Jun 01 2016, 23:09:59 2016-07-03 16:07:37,950 [main] INFO org.apache.pig.impl.util.Utils - Default bootup file /home/hduser/.pigbootup not found 2016-07-03 16:07:38,089 [main] ERROR org.apache.pig.Main - ERROR 4010: Cannot find hadoop configurations in classpath (neither hadoop-site.xml nor core-site.xml was found in the classpath). If you plan to use local mode, please put -x local option in command line 2016-07-03 16:07:38,090 [main] WARN org.apache.pig.Main - There is no log file to write to. 2016-07-03 16:07:38,090 [main] ERROR org.apache.pig.Main - org.apache.pig.backend.executionengine.ExecException: ERROR 4010: Cannot find hadoop configurations in classpath (neither hadoop-site.xml nor core-site.xml was found in the classpath). If you plan to use local mode, please put -x local option in command line at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.getExecConf(HExecutionEngine.java:158) at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.init(HExecutionEngine.java:195) at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.init(HExecutionEngine.java:112) at org.apache.pig.impl.PigContext.connect(PigContext.java:305) at org.apache.pig.PigServer.<init>(PigServer.java:231) at org.apache.pig.PigServer.<init>(PigServer.java:219) at org.apache.pig.tools.grunt.Grunt.<init>(Grunt.java:46) at org.apache.pig.Main.run(Main.java:561) at org.apache.pig.Main.main(Main.java:176)

2016-07-03 16:07:38,175 [main] INFO org.apache.pig.Main - Pig script completed in 614 milliseconds (614 ms)

[#2 · Accepted solution]

The problem here is that you are running Pig in MapReduce mode, which requires the necessary hadoop jars set in your classpath.

You have two options over here-

1. Set the Hadoop Classpath by using the below command :-

Assuming you are seting this from the same folder as you are building your code with Maven and have put all your 3rd paty JARs in target/libs...

Command -> export HADOOP_CLASSPATH=./target/classes:./target/libs/*

2. Run in Pig in Local mode - This mode allows you to run in Local mode, you need access to a single machine; all files are installed and run using your local host and local file system.

Command -> pig -x local

Hope this helps 🙂

[#3]

thank you Gautam..:) I got it.

[#4]

@sharda godara - Kindly accept the answer 🙂