[Monotone-devel] Re: Monotone server problems

[Jon Bright]

Hi,

graydon hoare wrote:

> > *** Error: std::logic_error: netio.hh:31: invariant 'I(pos < 
> > str.size())' violated
>
>
> ooh, that's not very good. at least it was trapped. could you save a 
> copy of the database which caused that (on the server) for future 
> reference? I want to nail down remaining bugs in netsync code.

I've played around a bit more.  After adding some debug output around 
the assertion that was failing, in netio.hh, I changed:

I(pos < str.size());

to

I(pos < str.size() || len == 0);

Since requesting 0 bytes seems valid even if at the end of the buffer 
(though it's possibly a logical error to be requesting 0 bytes in the 
first place?).

In any event, this seemed to process much more data.  Where the previous 
runs would get to

monotone: [bytes in: 1502181] [bytes out: 249514]

before spewing, the current one gets to

monotone: [bytes in: 5365218] [bytes out: 249514]

At this point, however, it appears to stop altogether until, on the 
server side:

monotone: fd 6 (peer 123.45.67.89:44425) has been idle too long, 
disconnecting

The client then shows:

monotone: read from fd 5 (peer host.siliconcircus.com) failed, disconnecting

--
Jon Bright
Silicon Circus Ltd.
http://www.siliconcircus.com