Raspberry Hadoop Cluster - Bill of Materials

For a cluster of 5 Raspberry Pi 2 B instances, I bought:

Everything you need for a 5 Pi cluster

Item Price
TP-Link TL-SG 108: 8 port Gigabit Switch 1x 25,99 €
Transcend TS-RDF5K Card reader 1x 7,68 €
Raspberry Pi 2 B 5x 39,99 = 199,95 €
Anker PowerPort (60W 6 Port USB Charger) 1x 29,99 €
3 USB Charger cables 2 x 7,49 = 14,98 €
Transcend 32 GByte microSDHC memory cards 5 x 11,89 = 59,45 €
TFPNet 5-pack CAT 6 Ethernet cables 1x 9,95€
   
Total 342,99 €

  • Download raspbian, the debian based OS for Raspberries
  • Copied it to the frist card with the USB card reader and did basic setup
  • Copied card four times (in hindsight, I should have done more setup: install hadoop etc before copying the system, as there are always little things that need installation later on, for example emacs)
  • Setup DHCP in the router for the 5 ethernet MAC addresses so each Raspberry always gets the same IP (poor man's DNS)

And the initial test run with all 5 raspberries connected: