I'm personally having scalability issues (i think?) with Deb+pushpoold.
We're serving ~200 workers over at Bitcoins.lc, and I'm getting errors like this all the time.
[2011-06-03 03:55:36] thread 2: 97416096 hashes, 1618.00 khash/sec
[2011-06-03 03:55:36] JSON-RPC call failed: {
"code": -2,
"message": "upstream RPC error"
}
[2011-06-03 03:55:36] json_rpc_call failed, retry after 30 seconds
[2011-06-03 03:55:37] thread 3: 97416096 hashes, 1624.76 khash/sec
Why is "bitcoind" refusing to give out work sometimes?
Hosted on a 8 CPU VPS with lots of ram.
Any suggestions?
Bounty for solving this problem is a couple of BTC, easily.
EDIT: Also:
Jun 3 03:57:01 bitcoins pushpoold[9380]: HTTP request failed: couldn't connect to host
Jun 3 03:57:01 bitcoins pushpoold[9380]: HTTP request failed: couldn't connect to host
Jun 3 03:57:01 bitcoins pushpoold[9380]: HTTP request failed: couldn't connect to host