[Zope] ZServer *still* dying - help?
Chris McDonough
chrism@digicool.com
Fri, 6 Apr 2001 09:36:38 -0400
Sherwood, I'd be glad to, maybe we can set something up for next week?
Would Monday be OK?
- C
----- Original Message -----
From: "Sherwood Robinson" <srobinson@fredericksburg.com>
To: "Mayers, Philip J" <p.mayers@ic.ac.uk>; "'Chris McDonough '"
<chrism@digicool.com>; "Mayers, Philip J" <p.mayers@ic.ac.uk>;
<zope@zope.org>
Sent: Friday, April 06, 2001 9:15 AM
Subject: RE: [Zope] ZServer *still* dying - help?
> You know what is funny about his. We have several Zope installs of 2.3.1
> and only our largest suffers from this. If you guys Next store at DC want
> to walk over I'll let you see what we got going on... maybe it will
help...
>
> Sherwood Robinson
> Your Neighbor at
> The Free Lance-Star
>
> At 10:40 PM 4/5/2001 +0100, Mayers, Philip J wrote:
> >You have saved my sanity - I thought it was me! If you're ever in London,
> >beers are on me!
> >
> >Cheers,
> >Phil
> >
> >-----Original Message-----
> >From: Chris McDonough
> >To: Mayers, Philip J; zope@zope.org
> >Sent: 05/04/01 22:07
> >Subject: Re: [Zope] ZServer *still* dying - help?
> >
> >OK, I've been able to reproduce it. I have no idea of its cause
> >however...
> >but its definitely a Zope bug. We'll get on it.
> >
> >- C
> >
> >
> >----- Original Message -----
> >From: "Mayers, Philip J" <p.mayers@ic.ac.uk>
> >To: "'Chris McDonough '" <chrism@digicool.com>
> >Sent: Thursday, April 05, 2001 4:53 PM
> >Subject: RE: [Zope] ZServer *still* dying - help?
> >
> >
> > > Urk - ipchains error. Try it now.
> > >
> > > Cheers,
> > > Phil
> > >
> > > -----Original Message-----
> > > From: Chris McDonough
> > > To: Mayers, Philip J; zope@zope.org
> > > Sent: 05/04/01 20:59
> > > Subject: Re: [Zope] ZServer *still* dying - help?
> > >
> > > I can't seem to download the zexp... maybe an internet wind?
> > >
> > > ----- Original Message -----
> > > From: "Mayers, Philip J" <p.mayers@ic.ac.uk>
> > > To: "'Chris McDonough'" <chrism@digicool.com>; <zope@zope.org>
> > > Sent: Thursday, April 05, 2001 3:27 PM
> > > Subject: RE: [Zope] ZServer *still* dying - help?
> > >
> > >
> > > > It seems to be very difficult to get a consistently failing test
> >case,
> > > but
> > > > easier with the DB adaptor. That said, how about this:
> > > >
> > > > http://blacklotus.cc.ic.ac.uk/~pjm3/bug2.zexp
> > > >
> > > > Seems to suffer from the same problem, and has *no* dependencies
> > > (doesn't
> > > > need a database or any products). Simply import it, hammer the
> > > > /HDB/showmachine_html url without a ?machineid=whatever, it seems
> >ok,
> > > hammer
> > > > it *with* the argument, it fails. You will probably need to use the
> > > floodget
> > > > script I link earlier, unless you can press F5 *really* fast ;o)
> > > >
> > > > Regards,
> > > > Phil
> > > >
> > > > +----------------------------------+
> > > > | Phil Mayers, Network Support |
> > > > | Centre for Computing Services |
> > > > | Imperial College |
> > > > +----------------------------------+
> > > >
> > > > -----Original Message-----
> > > > From: Chris McDonough [mailto:chrism@digicool.com]
> > > > Sent: 05 April 2001 19:50
> > > > To: Mayers, Philip J; Thomas B. Passin; zope@zope.org
> > > > Subject: Re: [Zope] ZServer *still* dying - help?
> > > >
> > > >
> > > > Thank you very much for your work on packaging this up. But... I
> > > thought
> > > it
> > > > happened without postgres and that it was a property of calling a
> >DTML
> > > > method from a python script with a lot of arguments?
> > > >
> > > > A very simple example without postgres would be way better, even if
> > > it's
> > > > just, "here's two methods, type them in, view one, and keep clicking
> > > refresh
> > > > really fast". If it's a bug in Zope, and it's reproducible I'll try
> > > to
> > > fix
> > > > it. If it's a bug in the postgres DA, I'd like to try, but I can't
> > > really
> > > > spend much time on it. As well, the maintainer of the DA should be
> > > > involved.
> > > >
> > > > If you can't send something that doesn't involve the DA, I
> > > understand...
> > > but
> > > > I won't be able to do much with it today.
> > > >
> > > > Tks!
> > > >
> > > > - C
> > > >
> > > > ----- Original Message -----
> > > > From: "Mayers, Philip J" <p.mayers@ic.ac.uk>
> > > > To: "'Chris McDonough'" <chrism@digicool.com>; "Thomas B. Passin"
> > > > <tpassin@mitretek.org>; <zope@zope.org>
> > > > Sent: Thursday, April 05, 2001 2:40 PM
> > > > Subject: RE: [Zope] ZServer *still* dying - help?
> > > >
> > > >
> > > > > Ok, I've got a "fails reliably once every few (>15) request" still
> > > held
> > > > over
> > > > > from the last person I sent it to - it *still* fails on Zope
> >2.3.1,
> > > I've
> > > > got
> > > > > a zexp and the full instructions:
> > > > >
> > > > > Ok, the zexp should be accessible from:
> > > > >
> > > > > http://blacklotus.cc.ic.ac.uk/~pjm3/bug.zexp
> > > > >
> > > > > You'll need Psycopg installed and a Postgresql server. I used
> > > > > psycopg-0.4.6.tar.gz, available from:
> > > > >
> > > > > http://blacklotus.cc.ic.ac.uk/~pjm3/psycopg-0.4.6.tar.gz (note -
> > > same
> > > > > results with 0.5.1)
> > > > >
> > > > > If you can't get a Postgresql server, let me know and you can
> >point
> > > it
> > > at
> > > > > mine (I'll need to know the subnet(s) you'll be coming from). The
> > > > following
> > > > > should create everything needed to repro the bug:
> > > > >
> > > > > CREATE TABLE machine (
> > > > > machineid text,
> > > > > owner text NOT NULL,
> > > > > ownerdept text NOT NULL,
> > > > > owneremail text NOT NULL,
> > > > > ownertel text,
> > > > > machinetype text,
> > > > > machineos text,
> > > > > machineserialno text,
> > > > > location text NOT NULL,
> > > > > comment text,
> > > > > updatedby text,
> > > > > updatedat timestamp,
> > > > > PRIMARY KEY (machineid)
> > > > > );
> > > > >
> > > > > insert into machine (machineid, owner, ownerdept, owneremail,
> > > ownertel,
> > > > > machinetype, machineos, machineserialno, location, comment,
> > > updatedby,
> > > > > updatedat) values ('wildfire.net.ic.ac.uk', 'Phil Mayers', '410
> >Mech
> > > Eng',
> > > > > 'p.mayers@ic.ac.uk', '46973', 'PC NT / Linux', '410 Mech Eng',
> > > 'batch',
> > > > > now())
> > > > >
> > > > > Import the ZEXP, then try getting:
> > > > >
> > > > > http://zope.server:port/showmachine_html
> > > > >
> > > > > Very quickly, possibly using the script I posted yesterday:
> > > > >
> > > > > http://blacklotus.cc.ic.ac.uk/~pjm3/floodget.py
> > > > >
> > > > > Usage: floodget.py server:port /url/file?argument1=value1 username
> > > > password
> > > > > number_of_threads
> > > > > So: floodget.py server.com:8080 /showmachine_html username pass
> >100
> > > > >
> > > > > I use either 100 or 1000 threads. All should be well. Now try:
> > > > >
> > > > >
> > >
> >http://zope.server:port/showmachine_html?machineid=wildfire.net.ic.ac.uk
> > > > >
> > > > > I get failures and the child threads dying quickly with only 5-25
> > > threads.
> > > > >
> > > > > Regards,
> > > > > Phil
> > > > >
> > > > > +----------------------------------+
> > > > > | Phil Mayers, Network Support |
> > > > > | Centre for Computing Services |
> > > > > | Imperial College |
> > > > > +----------------------------------+
> > > > >
> > > > > -----Original Message-----
> > > > > From: Chris McDonough [mailto:chrism@digicool.com]
> > > > > Sent: 05 April 2001 18:06
> > > > > To: Chris McDonough; Thomas B. Passin; zope@zope.org
> > > > > Subject: Re: [Zope] ZServer *still* dying - help?
> > > > >
> > > > >
> > > > > Wait, no I *didnt* write a unit test for this. Sorry! I wrote a
> > > unit
> > > > test
> > > > > that sends lots of named parameters to a python script, not a dtml
> > > > method...
> > > > >
> > > > > If you can boil this down to an always-fails case we can fix it.
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Chris McDonough" <chrism@digicool.com>
> > > > > To: "Thomas B. Passin" <tpassin@mitretek.org>; <zope@zope.org>
> > > > > Sent: Thursday, April 05, 2001 12:56 PM
> > > > > Subject: Re: [Zope] ZServer *still* dying - help?
> > > > >
> > > > >
> > > > > > It still shouldn't be crashing.
> > > > > >
> > > > > > I wrote a unit test for this!! (testParam26 in the test suite)
> > > ;-)
> > > > > Wonder
> > > > > > if it passes... it does. Darn.
> > > > > >
> > > > > > What Zope version is this?
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Thomas B. Passin" <tpassin@mitretek.org>
> > > > > > To: <zope@zope.org>
> > > > > > Sent: Thursday, April 05, 2001 12:49 PM
> > > > > > Subject: Re: [Zope] ZServer *still* dying - help?
> > > > > >
> > > > > >
> > > > > > > I don't know what's happening, but what about attaching the
> > > params
> > > to
> > > > > the
> > > > > > > REQUEST, then you don't have to send them separately. Of
> > > course,
> > > > you'd
> > > > > > have
> > > > > > > to rewrite show_html a bit, but it shouldn't take much doing.
> > > > > > >
> > > > > > > Then you would write things like
> > > > > > > ...
> > > > > > > <dtml-call "REQUEST.set('param1',m.param1)">
> > > > > > > ...
> > > > > > > print container.machine.show_html(context,REQUEST)
> > > > > > >
> > > > > > > Or make the separate params into a single python list and pass
> > > the
> > > > list:
> > > > > > >
> > > > > > > params=[m.param1,m.param2,...]
> > > > > > > print container.machine.show_html(context,REQUEST,params)
> > > > > > >
> > > > > > > Cheers,
> > > > > > >
> > > > > > > Tom P
> > > > > > >
> > > > > > > Mayers, Philip J asked -
> > > > > > >
> > > > > > > >
> > > > > > > > What's happening - I have a PythonScript that does this:
> > > > > > > >
> > > > > > > > m = container.machine.SQL_get(machineid=machineid)[0]
> > > > > > > > print container.machine.show_html(context,REQUEST,
> > > > > > > > param1=m.param1,
> > > > > > > > param2=m.param2,
> > > > > > > > param3=m.param3,
> > > > > > > > param4=m.param4,
> > > > > > > > param5=m.param5,
> > > > > > > > param6=m.param6,
> > > > > > > > param7=m.param7,
> > > > > > > > param8=m.param8,
> > > > > > > > param9=m.param9,
> > > > > > > > param0=m.param0)
> > > > > > > > return printed
> > > > > > > >
> > > > > > > > show_html is a DTML document. When called at "high" speed
> >(2-3
> > > times
> > > > a
> > > > > > > > second) by URL traversal (i.e. GETing
> > > > > > > > http://site.name/Zope/path/pythonscript?machineid=whatever)
> > > this
> > > > > causes
> > > > > > > > either (in order of likelihood):
> > > > > > > > ...
> > > > > > >
> > > > > > > > *But*, if I reduce the number of named parameters to the
> >DTML
> > > method
> > > > > > (when
> > > > > > > > of course it doesn't render properly) then everything's OK.
> > > The
> > > > > current
> > > > > > > code
> > > > > > > > dies if there are >8 named parameters. But it seems to vary.
> >I
> > > > thought
> > > > > > > that
> > > > > > > > the parameters had to be records from an SQL query, but now
> > > I'm
> > > not
> > > > so
> > > > > > > sure.
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > _______________________________________________
> > > > > > > Zope maillist - Zope@zope.org
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