From: Olivier Langlois <olivier@trillion01•com>
To: slush <slush@centrum•cz>
Cc: "bitcoin-development@lists•sourceforge.net"
<bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] bitcoind stops responding
Date: Tue, 01 Oct 2013 00:03:39 -0400 [thread overview]
Message-ID: <1380600219.932.21.camel@Wailaba2> (raw)
In-Reply-To: <CAJna-Hi+eyRnZUtHpfvod_uRCmjPOL5HS3ZZpr54yzbKRRT9-w@mail.gmail.com>
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.
next prev parent reply other threads:[~2013-10-01 4:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 20:44 slush
2013-09-30 21:01 ` Warren Togami Jr.
2013-09-30 22:00 ` Fatima Castiglione Maldonado 发
2013-09-30 22:08 ` Gregory Maxwell
2013-10-01 0:05 ` Fatima Castiglione Maldonado 发
2013-10-01 1:26 ` Jeff Garzik
2013-10-01 0:20 ` Chris Double
2013-10-01 1:17 ` Jeff Garzik
2013-10-01 8:58 ` slush
2013-10-04 6:22 ` Gavin Andresen
2013-10-04 15:05 ` Jeff Garzik
2013-10-01 4:03 ` Olivier Langlois [this message]
2013-10-01 7:10 ` Olivier Langlois
2013-10-01 14:17 ` Jeff Garzik
2013-10-02 3:20 ` Olivier Langlois
2013-10-04 3:52 ` Olivier Langlois
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