i never could start ecoinpool at all.
After looking in all the public available poolsoftwares i ended up with eloipool and poolserverj, both working.
From a buddy i know pushpool is relatively fragile on load while poolserverj handled the same load easily but poolj development is discontinued/stalled for now.
About eloipool i only know its still maintained and used in luke-jr official pool eligius and in inabas eclipsemining pool.