[tahoe-dev] Weird WUI Error

[Michael Coppola]

Hey list,

I installed a new storage node the other day (which just happens to be
my introducer too), and I seem to have this problem where the WUI (on
:3456) keeps going to an "Internal Server Error" page every few hours. 
If I restart the process, then it's fine again, but it's back to the
error page when I check it a little while later.  I'm not sure what's
going on, because I have pretty much an identical storage installation
on another box that works perfectly fine.

Here's my twistd.log: http://paste.pocoo.org/show/321423/

And here are the details of my tahoe-lafs installation:

phil at segfault:~/allmydata-tahoe-1.8.1/bin$ ./tahoe --version-and-path
allmydata-tahoe: 1.8.1 (/home/phil/allmydata-tahoe-1.8.1/src), foolscap:
0.6.0
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/foolscap-0.6.0-py2.6.egg),
pycryptopp: 0.5.25-r760
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/pycryptopp-0.5.25_r760-py2.6-linux-i686.egg),
zfec: 1.4.10
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/zfec-1.4.10-py2.6-linux-i686.egg),
Twisted: 10.2.0
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/Twisted-10.2.0-py2.6-linux-i686.egg),
Nevow: 0.10.0
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/Nevow-0.10.0-py2.6.egg),
zope.interface: 3.6.1
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/zope.interface-3.6.1-py2.6-linux-i686.egg),
python: 2.6.6 (/usr/bin/python), platform:
Linux-Ubuntu_10.10-i686-32bit_ELF (None), sqlite: 3.7.2 (unknown),
simplejson: 2.1.2
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/simplejson-2.1.2-py2.6-linux-i686.egg),
argparse: 1.1
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/argparse-1.1-py2.6.egg),
pycrypto: 2.3
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/pycrypto-2.3-py2.6-linux-i686.egg),
pyOpenSSL: 0.11
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/pyOpenSSL-0.11-py2.6-linux-i686.egg),
pyutil: 1.8.1
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/pyutil-1.8.1-py2.6.egg),
zbase32: 1.1.3
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/zbase32-1.1.3-py2.6.egg),
setuptools: 0.6c16dev3
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/setuptools-0.6c16dev3.egg),
pyasn1: 0.0.12a
(/home/phil/allmydata-tahoe-1.8.1/support/lib/python2.6/site-packages/pyasn1-0.0.12a-py2.6.egg),
pysqlite: 2.4.1 (/usr/lib/python2.6)

The crazy thing is that the reportedly missing file in twistd.log does
exist...

phil at segfault:~$ ls -la
/home/phil/allmydata-tahoe-1.8.1/src/allmydata/web/welcome.xhtml
-rw------- 1 phil phil 3804 2010-11-29 21:41
/home/phil/allmydata-tahoe-1.8.1/src/allmydata/web/welcome.xhtml

Not sure what's going on here.  Hopefully someone can shine some light
on the situation.  Thanks for your help