On Mon, 2013-09-30 at 22:44 +0200, slush wrote: > Hi, > > > during several weeks I'm observing more and more frequent issues with > bitcoind. The problem is that bitcoind stops responding to RPC calls, > but there's no other suspicious activity in bitcoind log, CPU usage is > low, disk I/O is standard etc. > > > I observed this problem with version 0.8.2, but it is still happening > with 0.8.5. Originally this happen just one or twice per day. Today my > monitoring scripts restarted bitcoind more than 30x, which sounds > alarming. This happen on various backends, so it isn't a problem of > one specific node. Is there anybody else who's observing similar > problem?
What a coincidence. I do have observed the same thing. right now with 0.8.5. I am writing a small app. My jsonrpc client is programmed to timeout after 2 secs and I did see a couple of timeouts once in while. What I did is a simple test app that just hammer bitcoind with 3 rpc requests every 30 seconds and I abort it as soon as it encountered a timeout. The 3 request burst is performed on the same HTTP 1.1 kept alive connection. Then I disconnect. When I launch my app before leaving in the morning, pretty sure that I have a core dump waiting for me when I come back. I choose very simple calls: getinfo,getaccount Added a couple of traces in the RPC handling code. (BTW, timestamps in traces would be tremendously useful for tracking problems...). I see my request received by bitcoind but there is no trace yet to show that the reply is sent. Not sure yet exactly where the problem is but my current #1 suspect is: LOCK2(cs_main, pwalletMain->cs_wallet); with some kind of lock contention with the other threads. ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
