I'm running pushpool0.5.1 and have a problem with it. The problem is that my pushpool is working for about 15min-3hours and everything looks normal, but after some time when I try to mine and I get this error: Problems communicating with bitcoin RPC . Pushpoold process seems like working as allways. But after killing and running pushpoold again everything works normally...
My VPS is with ubuntu-11.04-x86 and 768 Mb of RAM. Bitcoin client is in another server (windows vps).
Maybe someone knows how to fix this problem?