Hadoop administration is highly technical work, where professionals need to have deeper understanding of the concepts of Hadoop, how it functions, and how it can be managed. The challenges faced by Hadoop administrators differ from other similar roles such as database or network administrators. For example, if you are a DBA, you typically get proactive alerts from the underlying database system when you run into tablespace threshold alerts when the disk space is not available for allocation, and you need to act on it, or else the operations will fail. In the case of Hadoop, the appropriate action is to move the job to another node in case it fails on one node due to sizing.
The following are the different responsibilities of a Hadoop administrator:
- Installation and upgrades of clusters
- Backup and disaster recovery
- Application...