Re: webmin-0.990-1 spawns several processes and locks server

[Andrew K. <ak...@ra...>]

Jamie,

I am connecting to a server from a remote location on the internet.
I have a broadband internet service provider and the server is on
a T1. No delays between myself and any servers I connect to.
I have other servers with webmin running on the same network
without any problems.

-Andrew
----- Original Message -----
From: "Jamie Cameron" <jca...@we...>
To: <web...@li...>
Sent: Tuesday, September 10, 2002 11:22 PM
Subject: Re: webmin-0.990-1 spawns several processes and locks server


> Joe Cooper wrote:
>
> > Goodness!  That's not the same issue I'm seeing at all.  That's crazy
> > talk, Andrew!
> >
> > I think you must have a very badly behaved module on your hands.  How
> > about doing a Webmin session without touching any non-standard modules
> > and seeing what happens.  I can't imagine any of the standard modules
> > would behave that way.
>
>
> I have heard from others with this problem, and they are just using
>
> the standard webmin with no extra modules.. It seems to be a problem with
>
> miniserv.pl , not with the module code. The annoying thing is that
>
> I have been able to connect to the machines of people who had the problem,
>
> without triggering it myself!
>
> That leads me to suspect that it is browser or maybe network-latency
related.
> Andrew - what kind of connection is there between your browser and the
webmin
> server? Are they on the same machine, connected via a LAN, on over the
> internet?
>
>
> > The problem I've seen is pretty controllable--and only leads to big
> > trouble with one of my own modules (my troublemaker accesses a number of
> > remote servers and gathers information from them, and then reloads after
> > 30 seconds and does it all over again infinitely many times).  I have
> > never seen a Webmin go evil like that before.
>
>
> In your case, you might want to try disabling keep-alives in webmin, which
> will return it to the one-process-per-request behaviour. You can do this
> by adding the line nokeepalive=1 to /etc/webmin/miniserv.conf and then
> re-starting.
>
> I'm going to look into a patch to have miniserv.pl proceses exit after 10
> minutes, even if the client browser is till connected. It's tricky though,
> as IE can get annoyed sometimes if the server just disconnects like that.
>
>   - Jamie
>
>
>
> > Andrew Kornak wrote:
> >
> >> This might be a good short-term fix, except, my server spawns several
> >> webmin processes in short order which brings the server down in about
> >> 5-10 seconds (not minutes). Initially, I thought perhaps I was short of
> >> memory. I added memory and webmin sucked it right up. Not a memory
> >> problem.
> >>
> >> -Andrew
> >> ----- Original Message -----
> >> From: "Joe Cooper" <jo...@sw...>
> >> To: <web...@li...>
> >> Sent: Tuesday, September 10, 2002 9:41 PM
> >> Subject: Re: webmin-0.990-1 spawns several processes and locks server
> >>
> >>
> >>
> >>> This one is a weird issue, and one that I've seen quite a few times
now,
> >>> but haven't reproduced it lately myself (but I still have a client
that
> >>> can trigger it on his machine--while I cannot).
> >>>
> >>> I was able to make it happen in the past with Netscape 6.0, but these
> >>> days, neither Mozilla or current Netscape makes it happen for me.
> >>> Another client /always/ has about 25 Webmin processes on his machine,
> >>> and I don't know where they're coming from.  Darnedest thing I've seen
> >>> in a while...
> >>>
> >>> Jamie, would it be possible to get a forced timeout on child
miniserv.pl
> >>> processes if they don't do something for some number of minutes?  It
is
> >>> just a simple 'process per connection' server, isn't it?  I know that
> >>> webmin spawning processes that don't end can cause it to hang around,
> >>> but if after 5 minutes something hasn't returned, the browser has
> >>> probably timed out the request already anyway.  So no use waiting for
a
> >>> long process if there will be no one around to see it finish.  Just a
> >>> thought.
> >>
> >
> >
>
>
>
>
>
> -------------------------------------------------------
> In remembrance
> www.osdn.com/911/
> -
> Forwarded by the Webmin mailing list at
web...@li...
> To remove yourself from this list, go to
> http://lists.sourceforge.net/lists/listinfo/webadmin-list