hpcc-systems/HPCC-Platform — pull request #4712 by wangkx (2013-08-01 15:28:15+00:00)
Title: HPCC-9814 Show N/A when a memory node is not available

Existing code shows '0%' SWAP when a SWAP is not configured on
a system. It caused some misleading. This fix checks the total
memory size for a memory node. If the size is zero, it shows N/A.

Signed-off-by: Kevin Wang