Role: Hadoop Admin
Exp: 6 to 8 years
Implementing managing and administering the overall hadoop infrastructure
Takes care of the day to day running of Hadoop clusters
A hadoop administrator will have to work closely with the database team network team BI team and application teams to make sure that all the big data applications are highly available and performing as expected.
If working with open source Apache Distribution then hadoop admins have to manually setup all the configurations Core Site HDFS Site YARN Site and Map Red Site However when working with popular hadoop distribution like Hortonworks Cloudera or MapR the configuration files are setup on startup and the hadoop admin need not configure them manually.
Hadoop admin is responsible for capacity planning and estimating the requirements for lowering or increasing the capacity of the hadoop cluster.
Hadoop admin is also responsible for deciding the size of the hadoop cluster based on the data to be stored in HDFS.
Ensure that the hadoop cluster is up and running all the time.
Monitoring the cluster connectivity and performance Manage and review Hadoop log files Backup and recovery tasks Resource and security management Troubleshooting application errors and ensuring that they do not occur again