Run pig in java without embedding pig script

Question

I am new to pig script, Hadoop, Hbase. Here\'s what i need to know. I wanted to run a pig script, I don\'t want to embed the pig script in my java program and wanted to run

Answer 1

You can use org.apache.pig.PigServer to run pig scripts from Java programs.

PigServer pigServer = new PigServer(ExecType.MAPREDUCE);
pigServer.registerScript("scripts/test.pig");

Requires 'pig.properties' on classpath.

fs.default.name=hdfs://:
mapred.job.tracker=:

Or pass an instance of java.util.Properties to PigServer constructor.

Properties props = new Properties();
props.setProperty("fs.default.name", "hdfs://:");
props.setProperty("mapred.job.tracker", ":");
PigServer pigServer = new PigServer(ExecType.MAPREDUCE, props);