Yet again, sagenb.org is throwing lots of errors like:
2011-11-05 07:30:38-0700 [-] Unhandled Error
Traceback (most recent call last):
File
"/sagenb/sage_install/sage-4.7/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/application/app.py",
line 445, in s
tartReactor
self.config, oldstdout, oldstderr, self.profiler, reactor)
File
"/sagenb/sage_install/sage-4.7/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/application/app.py",
line 348, in r
unReactorWithLogging
reactor.run() File
"/sagenb/sage_install/sage-4.7/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/base.py",
line 1166, in ru
n
self.mainLoop() File
"/sagenb/sage_install/sage-4.7/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/base.py",
line 1178, in ma
inLoop
self.doIteration(t) --- <exception caught here> ---
File
"/sagenb/sage_install/sage-4.7/local/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/selectreactor.py",
line 10
4, in doSelect
[], timeout) exceptions.ValueError: filedescriptor
out of range in select()
2011-11-05 07:30:38-0700 [-] Malformed file descriptor found. Preening
lists.
2011-11-05 07:30:38-0700 [-] bad descriptor <HTTPChannel #150336 on 8888>
According to the admin script, sagenb.org has 23 active worksheets.
When I look at lsof, though, I see 1769 open files. Of these, 734 are
/dev/ptmx:
sagenb@mod:~/servers$ lsof +p 16641 |grep "ptmx"|wc -l
734
From reading a description of /dev/ptmx [1], it seems that /dev/ptmx
would be used in a pexpect. I guess my conclusion is that somehow, Sage
or twisted is not releasing the file handles on the pexpect connections
for the worksheets. Does this conclusion make sense to those that know
more about file handles and pexpect and twisted?
Thanks,
Jason
[1] http://linux.die.net/man/4/ptmx
--
To post to this group, send an email to sage-devel@googlegroups.com
To unsubscribe from this group, send an email to
sage-devel+unsubscr...@googlegroups.com
For more options, visit this group at http://groups.google.com/group/sage-devel
URL: http://www.sagemath.org
