Re: Replication Factor Details

2017-08-02 Thread Ravi Prakash
Hi Hilmi! The topology script / DNSToSwitchMapping tell the NameNode about the topology of the cluster : https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/RackAwareness.html You can trace through

Replication Factor Details

2017-08-02 Thread Hilmi Egemen Ciritoğlu
Hi guys, I spend my time to read too much about setting replication factor as well as block placement so far. But I still wonder how setrep command is working behind in the code. I am looking for answer to following questions: What if you have one rack and increase and decrease replication