[Zope] Strange Zope behavior/Instability (Zope going down)

[Rob Sporleder]

It was the command line within the shell. Actually, I've found something
that's interesting...

The system clock is an hour slow. The logs are written 6 hours ahead. I
greped the log file for BigBrother and found an hour gap with no BigBrother
entries from 06:37:53 and 07:40:23, roughly the time that the site seemed to
go down. However, during this time there were hundreds of successful hits to
the site.

--Rob

-----Original Message-----
From: Jason Spisak [mailto:444@hiretechs.com]
Sent: Wednesday, May 31, 2000 2:42 PM
To: rsporleder@openave.com
Cc: zope@zope.org
Subject: Re: [Zope] Strange Zope behavior/Instability (Zope going down)


Rob Sporleder writes:

> All of the python z2.py processes are still running. I haven't checked if
I
> can get to it using http://localhost. The server is offsite. However, I
did
> try an http get from the command line and it did not respond.
>

Was it the command line on the server?
from the server shell:

$>wget http://localhost:8080

I'm trying to narrow it down to the real culprit.  We can't be sure it's
Zope and not the DNS/Machine/Routing/Firewall/ or anything else.

> -----Original Message-----
> From: Jason Spisak [mailto:444@hiretechs.com]
> Sent: Wednesday, May 31, 2000 1:13 PM
> To: rsporleder@openave.com
> Cc: zope@zope.org
> Subject: Re: [Zope] Strange Zope behavior/Instability (Zope going down)
>
>
> Rob Sporleder:
>
> > I received a server not responding error. We lost connectivity twice on
> > Friday as well. I setup a script to restart the server every X minutes
so
> we
> > wouldn't have to worry about it over the weekend. I removed the cronjob
on
> > Tuesday morning and it was fine until early Wednesday morning when it
went
> > down three times in 30 minutes.
> >
> > Thanks,
> > Rob
> >
>
> Wow. Ugly.  Are the Zope processes still up after you've lost
connectivity?
>  If so, can you get a browser on the machine running zope to access it?
> http://localhost:8080, or whatever port your running on.
>
> > -----Original Message-----
> > From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of Jason
> > Spisak
> > Sent: Wednesday, May 31, 2000 12:10 PM
> > To: rsporleder@openave.com
> > Cc: zope@zope.org
> > Subject: Re: [Zope] Strange Zope behavior/Instability
> >
> >
> > Rob Sporleder:
> >
> > > For reasons unknown we lost http connectivity to our Zope server three
> > times
> > > last night.
> >
> > When you say lost connectivity, do you mean the browsers gave you back a
> > 'Server Not Resonding' message, or was is as if Zope was just spinning
> it's
> > wheels?  If it was the latter, how long did you wait to see if you did
get
> > a response? 1 minute, 10, 30?
> >
> > >I've checked the http logs and, as I suspected, didn't find
> > > anything unusual around the time we lost connectivity. The Python
> > processes
> > > are still running and everything looks normal except for the
> connectivity
> > > problem. Does anybody have any idea what might be causing this? I
> haven't
> > > found anything.
> > >
> >
> > This happened to me, but it caused a single process to chew CPU.  Since
> you
> > noticed no such chewing, I'll bet it's not the DTML decapitation bug.
> >
> > > Here are some specifics about our setup...
> > >
> > > version of python:
> > > 1.5.2
> > >
> > > operating system:
> > > Linux 2.2.12-20smp (Redhat 6.1)
> > >
> > > services running on machine:
> > > MySQL
> > > 2 instances of Zope
> > > Python
> > >
> > > machine specifics:
> > >
> > > CPU: 0.04
> > > MEM: 31M of 512M
> > > Swap: 528688K free
> > > Disk Space: GB's available on all partitions
> > > Hardware: 598 Mhz Pentium III, 4 17.4 GB SCSI hard disks
> > >
> > > version of Zope:
> > > 2.1.4
> > >
>
> Jason Spisak
> CIO
> HireTechs.com
> 6151 West Century Boulevard
> Suite 900
> Los Angeles, CA 90045
> P. 310.665.3444
> F. 310.665.3544
>
> Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email
> address may not be added to any commercial mail list with out my
> permission.  Violation of my privacy with advertising or SPAM will
> result in a suit for a MINIMUM of $500 damages/incident, $1500 for
> repeats.
>


Jason Spisak
CIO
HireTechs.com
6151 West Century Boulevard
Suite 900
Los Angeles, CA 90045
P. 310.665.3444
F. 310.665.3544

Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email
address may not be added to any commercial mail list with out my
permission.  Violation of my privacy with advertising or SPAM will
result in a suit for a MINIMUM of $500 damages/incident, $1500 for
repeats.