Hi Kazu, On Tue, Sep 3, 2013 at 2:52 PM, Kazu Yamamoto <k...@iij.ad.jp> wrote:
> Hi, > > As I said before, I started running HTTP server using Mio in the real > world. Unfortunately, the daemon is not stable. > > After one day or so, the server cannot accept any HTTP requests. No > error messages from the server. > > The server is alive. To terminate the server (running in a "screen" > terminal), single Ctrl-c is not enough. Typing Ctrl-c again terminates > the server. > Could you run an strace on the process in this state so we can get an idea what it's doing? > After several tests, I'm getting convinced that this occurs only when > +RTS -N<x> is specified (where <x> >= 2). The server runs well if +RTS > -N<x> is not specified. > That indicates that the problem is with the threaded RTS and perhaps with the IO manager. > My question: if the program complied with GHC needs double Ctrl-c to > terminate, what is the situation of the program? > If Ctrl+C generates an exception (does it?) there could be an overzealous exception catcher somewhere that catches all exceptions, including your Ctrl+C. > > P.S. > > It seems to me that the server also is leaking space. The server is > getting fatter gradually. Could you use the profiler to see what type of objects are leaking?
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