[THIN] Re: NFuse servers extremely slow response

  • From: Anders Hansen-Øvre <Anders.Hansen-Ovre@xxxxxxxxx>
  • To: <thin@xxxxxxxxxxxxx>
  • Date: Tue, 18 Mar 2003 20:59:22 +0100

We have had the same problem with farms running Win2k SP3/MF1.0 FR2

Does anyone have a testxml.asp page or something that we can use to =
locate a problem server?

---
mvh/yours
Anders Hansen-=D8vre, Seniorkonsulent
Mail    : anders.hansen-ovre@xxxxxxxxx
Cell    : (+47) 90 98 17 78

Konsulenthuset Contra as
http://www.contra.no
=20

> -----Original Message-----
> From: Mason Dively [mailto:mdively@xxxxxxxxxx]=20
> Sent: 18. mars 2003 20:49
> To: 'thin@xxxxxxxxxxxxx'
> Subject: [THIN] Re: NFuse servers extremely slow response
>=20
>=20
> You are really not going to believe this, but after posting=20
> my response to Tom's message yesterday afternoon, I came in=20
> this morning and had this EXACT problem with my larger=20
> Metaframe farm (120 application servers.)  The problem was=20
> exactly how Mike described it below, the XML service on ONE=20
> application server was causing the problem for everyone=20
> trying to log into the Nfuse site.  As soon as we stopped the=20
> XML service for the problem server, the site immediately=20
> began working again.  In talking to Citrix's support people=20
> they recommended the following hotfix to correct this=20
> problem: =20
> http://support.microsoft.com/default.aspx?scid=3Dkb%3Ben-us%3B29
> 2548 or of course applying Win2K SP3 (which we haven't done=20
> to this point.)  It's scary to think that one "flaky" server=20
> can prevent logons!!
>=20
> And yes, by the way, I now believe our problem was a result=20
> of demonic possession.
>=20
> Thanks,
> =20
> Mason B. Dively  CCA, MCP
> Amdocs CMI Production Windows Support
>=20
>=20
> -----Original Message-----
> From: Mike Semon [mailto:msemon@xxxxxxx]=20
> Sent: Monday, March 17, 2003 10:02 PM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: NFuse servers extremely slow response
>=20
>=20
> I am seeing this same problem for NFuse pointing back to a=20
> Metaframe 1.8 farm. I think we have a box with a flaky XML=20
> service.  Also, check the ICA browser service on the servers=20
> your NFuse server is pointed.  I found one server the ICA=20
> browser service was hung.  Restarted the service and=20
> everything worked.
>=20
> Mike
>=20
> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
> Behalf Of Mason Dively
> Sent: Monday, March 17, 2003 4:38 PM
> To: 'thin@xxxxxxxxxxxxx'
> Subject: [THIN] Re: NFuse servers extremely slow response
>=20
>=20
> Tom--
>=20
> I feel your pain--we had the EXACT same thing happen in one=20
> of our farms. One box had a "flaky" XML service and was=20
> completely preventing users from logging in through our NFuse=20
> site.  We did not actually confirm that it was due to demonic=20
> possession but that explanation would certainly be more=20
> credible than any of the answers that the Citrix Tech Support=20
> guy gave us. When we asked what we can do to prevent future=20
> outages like this we were told there was nothing we could to=20
> do ensure that it wouldn't happen again. Anyone have any=20
> ideas or experience with this type of problem?
>=20
> Thanks,
>=20
> Mason B. Dively  CCA, MCP
> Amdocs Windows Administration
>=20
>=20
> -----Original Message-----
> From: Monahan, Thomas [mailto:Thomas.Monahan@xxxxxxxxxxx]
> Sent: Thursday, March 13, 2003 4:13 AM
> To: 'thin@xxxxxxxxxxxxx'
> Subject: [THIN] Re: NFuse servers extremely slow response
>=20
>=20
> Just to let you know that the problem was due to the one of=20
> the servers mis-behaving with the XML service. I say=20
> mis-behaving but what I really mean is it got posessed by the=20
> Devil himself and decided to carry out a denial of service=20
> attack on the farm. I think he posessed the citrix users as=20
> well as they weren't too happy with the farm being down for=20
> nearly an entire day. The problem was only tracked down when=20
> the XML port was change for some of the servers and that=20
> functioned fine. Eventually by trial and error we tracked=20
> down the server that was posessed. And even more proof that=20
> the server was posessed was the number of the server, it was=20
> our cy13 server.
>=20
> Anyway, havn't been able to rtp into it yet to check out of=20
> the event logs, so I don't know what it could have been doing=20
> that could have jamed up the entire xml service on the farm.
>=20
> Tom
>=20
>=20
> > -----Original Message-----
> > From:       Darryl Janetzki [SMTP:darrylj@xxxxxxxxxxxxxxxx]
> > Sent:       12 March 2003 13:13
> > To: Monahan, Thomas
> > Subject:    RE: [THIN] Re: NFuse servers extremely slow response
> >
> > Well, first thing to check, or I did.
> > http://localhost on the data collector or any  metaframe=20
> server in the=20
> > farm that has NFUSE installed
> >
> > In my case each metaframe server's web and NFUSE service was not=20
> > working (page not found) published applications still were=20
> working as=20
> > normal
> >
> > If the NFUSE web functions to another server but not the production=20
> > environment I would check DNS/netbios and IP connectivity=20
> issues (are=20
> > you sure that NFUSE is functioning on the productions servers.)
> >
> > A similar event occurred but this was access to all sites when I=20
> > deployed the IIS lockdown, group policy, wpad from and ISA=20
> server (ISA
> > FR1)
> > What happened group policy tattooed each PC in the OU with Autodect=20
> > setting Wpad.dat was denied by the ISA server in the URLSCAN.INI
> > The effect of this was that the server and clients were secure NAT
> > clients and the ISA server denied access to the WPAD thus=20
> denying access
> > to all resources Perhaps your development site is not using the same
> > configuration. A review of URLSCAN.LOG if you are using it on the
> > Web/proxy server may have the information on the problem.
> >
> >
> > Regards
> > Darryl
> >
> > -----Original Message-----
> > From: Monahan, Thomas [mailto:Thomas.Monahan@xxxxxxxxxxx]
> > Sent: Wednesday, 12 March 2003 11:35 PM
> > To: Darryl Janetzki
> > Subject: RE: [THIN] Re: NFuse servers extremely slow response
> >
> > Hi,
> >
> > Thanks for the suggestion. It didn't solve our problem.
> >
> > We pointed one of our production nfuse servers to our=20
> development farm=20
> > and it works fine, it just doesn't work when pointed to our=20
> production=20
> > farm.
> >
> >
> >
> >
> > Tom
> >
> > > -----Original Message-----
> > > From:     Darryl Janetzki [SMTP:darrylj@xxxxxxxxxxxxxxxx]
> > > Sent:     12 March 2003 10:59
> > > To:       Thomas.Monahan@xxxxxxxxxxx
> > > Subject:  RE: [THIN] Re: NFuse servers extremely slow response
> > >
> > > I had the problem a week ago. The nfuse icons were "greyed" out=20
> > > fortunately the link still worked.
> > >
> > > The solution I applied was to uninstall NFUSE on my NFUSE=20
> web server
> > and
> > > apply the security update version. I then ran the NFUSe=20
> wizard and=20
> > > recreated the nfuse page.
> > >
> > > The really interesting thing that happened next is that=20
> all the WEB=20
> > > servers on all Metaframe servers did not function at all.=20
> The nfuse
> > web
> > > site that I direct all users was unable to connect and=20
> display any=20
> > > applications. I then decided to restart the IMA then IIS from the=20
> > > IIS console. I commenced at the Data collector, then=20
> tested each of=20
> > > the metaframe web servers with the same procedure ... All=20
> was well=20
> > > again.
> > >
> > > DarrylJ@xxxxxxxxxxxxxxxx
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Monahan, Thomas [mailto:Thomas.Monahan@xxxxxxxxxxx]
> > > Sent: Wednesday, 12 March 2003 9:43 PM
> > > To: 'thin@xxxxxxxxxxxxx'
> > > Subject: [THIN] Re: NFuse servers extremely slow response
> > >
> > >
> > > Update: Nfuse icons don't show up, clicking on icon=20
> doesn't connect.=20
> > > Just shows opening page.
> > >
> > > Regards,
> > > Thomas
> > > UUSDTC Admin and Support
> > > Ph: 01925 233690 Ext: 33690
> > >
> > > > -----Original Message-----
> > > > From:   Monahan, Thomas [SMTP:Thomas.Monahan@xxxxxxxxxxx]
> > > > Sent:   12 March 2003 09:28
> > > > To:     thin@xxxxxxxxxxxxx
> > > > Subject:        [THIN] NFuse servers extremely slow response
> > > >
> > > >
> > > > Hi,
> > > >
> > > > There is just a "little" problem with our Nfuse=20
> servers. They are
> > all
> > > > giving
> > > > extemely slow response, so slow sometimes that it times out.=20
> > > > Servers
> > > are
> > > > on
> > > > different subnets. All giving the same slow response=20
> with varying=20
> > > > severity. Tried restarts, can't find any XML service=20
> problems on=20
> > > > our farm
> > > servers.
> > > > What could be causing this?
> > > >
> > > >
> > > > Any help much appreciated.
> > > >
> > > > Thomas
> > > >
> > > >
> > > >
> > > >
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> This Week's Sponsor - RTO Software / TScale
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> Get 30-40% more users per server to save $$$ and time.
> Add users now! - not more servers. If you're using Citrix,
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> This Week's Sponsor - RTO Software / TScale
> TScale increases terminal server capacity.
> Get 30-40% more users per server to save $$$ and time.
> Add users now! - not more servers. If you're using Citrix,
> you must learn about TScale!  Free 30-day eval:=20
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For Archives, to Unsubscribe, Subscribe or
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*********************************************************
This Week's Sponsor - RTO Software / TScale
TScale increases terminal server capacity.=20
Get 30-40% more users per server to save $$$ and time.=20
Add users now! - not more servers. If you're using Citrix,=20
you must learn about TScale!  Free 30-day eval: =
http://www.rtosoft.com/Enter.asp?ID=3D79
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For Archives, to Unsubscribe, Subscribe or=20
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*********************************************************
This Week's Sponsor - RTO Software / TScale
TScale increases terminal server capacity.=20
Get 30-40% more users per server to save $$$ and time.=20
Add users now! - not more servers. If you're using Citrix,=20
you must learn about TScale!  Free 30-day eval: =
http://www.rtosoft.com/Enter.asp?ID=3D79
**********************************************************

For Archives, to Unsubscribe, Subscribe or=20
set Digest or Vacation mode use the below link: =
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*********************************************************
This Week's Sponsor - RTO Software / TScale
TScale increases terminal server capacity. 
Get 30-40% more users per server to save $$$ and time. 
Add users now! - not more servers. If you're using Citrix, 
you must learn about TScale!  Free 30-day eval:
http://www.rtosoft.com/Enter.asp?ID=79
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