On Tue, Oct 1, 2013 at 6:58 PM, slush <slush@centrum.cz> wrote:

One process is asking getinfo every second as a fallback to possibly misconfigured blocknotify. It also calls getblocktemplate every 30 second.

getinfo does a bunch of stuff; with 0.9 you will be able to use getbestblockhash instead.

Second process is calling getinfo once a minute to check if bitcoind is working. If it don't receive a response in a minute, it kills bitcoind and starts it again.

If you just want to see if bitcoind is responding to RPC requests, then 'help getinfo' would do the trick without acquiring any locks.

RE: running into the maximum-of-4-keepalive-requests : simple workaround is to run with -rpcthreads=11 (or however many keepalive connections you need to support). I agree that the rpc code should be smarter; making the last rpc thread ignore keepalive and always disconnecting should be a fairly simple patch, and "patches welcome."

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Gavin Andresen