Hadoop Map Reduce Output

During the Map Reduce job run,
The map tasks output would be written into local file system of each node where the map task is running. This will be removed once the job is completed. The location of this directory is defined using this property mapreduce.cluster.local.dir

The reduce tasks output would be persisted into HDFS and followed by necessary replication will happen

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s