Hadoop Admin - Full time perm job

• Experience in large scale Hadoop cluster management
• Ability to balance and tune cluster nodes for performance
• Excellent Linux administration skills and understanding of system performance areas (memory, swap, disk i/o, network i/o, etc.)
• Demonstrated experience tuning large application systems - must know how to benchmark and stress test under the highest simulated traffic conditions
• Hive and HBase familiarity
• Excellent understanding of hardware and software mirroring
• Uderstanding of line and rack level IO tuning
• Must understand and have worked with tools like IOzone
• Thorough understanding of satellite,spacewalk, jumpstarts and kickstart profiling

10)Understanding of JVM administration and crash trace analysis

11)Proper understanding of NFS setup and block optimization.

12)Must know about frame set and communication protocols between multiple ethernets

13)Knowledge of RAID and its setup

14)Understanding og various JAVA OPTS related to hadoop

15)Understanding of zookeeper and zkdump.

16)Nagios configuration and automation

17)Must know PHP fo ganglia context customization.

18)Understanding of FIFO, Fair scheduler and Capacity scheduler and their usage

19)Understanding of ACLs on hadoop side.

20)Must understand how to use LVM on MapRFS

21)Must thorougly understand RPC and commuication protocols between nodes on TT and JT daemons

22)Fair knowledge of Google's Protobuf

23)Fair understanding of Hbase and CMS GC collector.

Only GC/GC EAD/US Citizens