Re: [Monotone-devel] A cornucopia of issues

[Ryan Hinton]

Matt Johnston wrote:

> On Tue, Jul 26, 2005 at 12:08:37AM -0600, Ryan Hinton wrote:
>
>  
>
> > (1)  I added a package for GCC 3.3.2, downloaded monotone 0.21, and hit 
> > another snag.  I had to add "#include <cstdarg>" to database.hh.  It 
> > uses a va_list type.  I'm suggesting this as a patch.
> >    
>
> Richard moved a stdarg.h include to database.hh just after
> 0.21, does that fix it?
>
>  
That should do it.  Some might argue that <cstdarg> is better C++ style, 
but it doesn't bother me.

> > (2)  Next issue.  In order to get my feet wet and suggest this patch, I 
> > tried to pull the monotone source.  I pull about 9MB of data and then 
> > begin spewing.  Incidentally, there is a noticeable stall at the 5.4MB.  
> > Here is what I see.
> >
> > myhost% monotone --db=mt.db --key="" pull venge.net net.venge.monotone
> >    
> ..
>  
>
> > monotone:     8.9M |    467.4k |     7678 |    2721 |            0
> >
> > I get the multiple lines hitting <ENTER> to keep my SSH session from 
> > dropping (anyone know how to STOP THAT?!).  I think the resulting 
> >    
> (have a look at ServerAliveInterval in the ssh_config manpage perhaps)
>  
No luck yet, but thanks.

> > monotone: warning: discarding revision data packet 
> > 6b72e940a0c1f3e9d79a60164964786aaea74798 with unmet dependencies
> >
> > I can send a core dump if that would be useful.  Any suggestions on 
> > getting the monotone source?  Is there any way to do a partial pull?
> >    
>
> It should bomb out with an error message, probably printed
> above the discarded packet warnings. If your network
> connection is having timeout problems (the ssh problems you
> mentioned), it's possible that there isn't any data
> transferred for long enough that the connection times out,
> and monotone fails. Are you going through any strange
> routers etc? The error message would be useful.
>  
This is what I have:

monotone: binding 2 parameters for SELECT delta FROM file_deltas WHERE 
id = ? AND base = ?
monotone: binding 1 with value 'ff29f04bb5cbf77926b9bfe05ba0780add131b26'
monotone: binding 2 with value '960ce5ba76ced81ff99bbf6a4872da168a74bd42'
monotone: version cache expiring 1e6650a94e25b90f026758b712b0eb259e4deb84
monotone: version cache hit on ff29f04bb5cbf77926b9bfe05ba0780add131b26
monotone: binding 3 parameters for INSERT INTO file_deltas VALUES(?, ?, ?)
monotone: binding 1 with value 'ae1621049348d574ecf3694807ba5e8dd167a34f'
monotone: binding 2 with value 'ff29f04bb5cbf77926b9bfe05ba0780add131b26'
monotone: binding 3 with value 
'H4sIAAAAAAAAAH2Rv04DMQzG9zyF2XpDURz/SSJEl059igqRgDKQirvcwNuTXBFCQjpPn+3f
monotone: 
Z9nJGSygZbXmDIzIHnzoEq3aCIhWzAUwmjl/rnlp19valvZSU6nvg0JPCAGJe+IsOwVRxpGo
monotone: 
IwFycc/uVAL2ITSgThnoUeAZfvCcrqXlj+XxrdR0aF/TUycuhwIP/5HciWkD5tzWuUI5npb8
monotone: eqvpeNrsJeXap
monotone: noting acceptence of file ae1621049348d574ecf3694807ba5e8dd167a34f
monotone: read 15928 bytes from fd 6 (peer venge.net)
monotone: lua isfunction() failed in get_fn
monotone: warning: discarding revision cert packet 
002b5019bc48b5eb187df86ec7c387b5a4b79a78 with unmet dependencies
... many more discards ...
... ROLLBACK and other stuff ...
monotone: fatal: std::bad_alloc: St9bad_alloc

The "St9bad_alloc" is interesting.  But I've seen that "lua isfunction() 
failed" before without ill effect.  Any ideas?  If this is the wrong 
output, I would appreciate any pointers on how to capture the right output.

> > (3)  Next I tried to get a client to test my OpenBSD server.  So I tried 
> > to compile 0.21 on my FreeBSD box.  It fails.  Here is the error.
> >
> > /usr/local/include/boost/dynamic_bitset/dynamic_bitset.hpp:548: error: 
> > no matching function for call to 
> > `make_non_const(boost::dynamic_bitset<unsigned char, 
> > std::allocator<unsigned char> >::<anonymous enum>)'
> >    
>
> I'm not too sure, though googling suggests that it's a boost
> error in the bsd config file, see
> http://lists.freebsd.org/pipermail/freebsd-ports-bugs/2005-January/050580.html
>
> Are you using a boost port from after mid-February?
>
>  
Right on.  Thanks for the pointer.  I'm sorry I didn't realize it was  
Boost issue and do the same search.

> > (4)  I am having trouble running monotone chroot'ed.  This is probably 
> > user error, but any help is appreciated.
> >
> > myhost# chroot /var/www/ monotone --db=/var/monotone/myhost.mtdb serve 
> > myhostname "myhostname-reversed.*"
> > monotone: fatal: std::exception: OS_Rng: open /dev/urandom operation 
> > failed with error 6
> >
> > Notice I'm still running as root.  (Same results for the _monotone user 
> > I created.)  I have a /var/www/dev/urandom file with permissions 755.  
> > Here is the output from monotone --full-version just for fun.
> >    
>
> The /dev/urandom file is a special device, you'll need to create it with 
> mknod /var/www/dev/random  c  2 3
> or something similar (those device numbers may be wrong, I just googled).
>
>  
I finally got this working.  My /var partition is, of course, mounted 
"nodev".  That was the error 6 I was getting (device not ready).  I 
tried a soft link to /dev/urandom, but then I got an error 63 (too many 
symbolic links, can't soft link out of a chroot).  I finally found the 
answer here.

http://wiki.noreply.org/noreply/TheOnionRouter/TorInChroot

The answer is to use svnd to emulate a file system and create the 
devices in that file system.  Monotone seems to be running happily 
chrooted now.

> > (5)  Finally, an easy one.  I am trying to find the best way to run 
> > monotone as a server.  Should I add it to rc.local?  Should I use 
> > nohup?  Run it in the background using my user account?  I saw someone 
> > suggested using runit, but OpenBSD 3.5 doesn't have a packaged version.  
> > I can try to download and install it if it's the best solution.  The 
> > same thread mentioned some post-install information/scripts I haven't 
> > found yet.  Where can I find that information?  Any other suggestions on 
> > how to securely run and use the monotone server?
> >    
>
> You can run it just from startup scripts, though it's useful
> if it's running under some some sort of supervisor program
> which can restart it if it stops running for some reason.
> Nathaniel's docs are at
> http://frances.vorpus.org/~monotone/netsync-setup.html ,
> though that uses runit - I'm not sure of standard
> alternatives on BSDs. Also note that the permission hook
> format has changed since that was written.
>
> Matt
>  
Thanks for the pointer.  I am still hoping to get monotone to work for me!

--
Ryan Hinton
address@hidden