[THIN] Re: NFuse servers extremely slow response
- From: Mason Dively <mdively@xxxxxxxxxx>
- To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
- Date: Wed, 19 Mar 2003 10:46:38 -0600
Unfortunately, we have to check our servers individually when something like
this happens. Our first step in troubleshooting was cycling the XML service on
our Data Collector but this did not fix the problem. The thing that we noticed
the two times that this has happened to us is that the server that has the XML
service "flaking out" will not allow you to RDP into it. Basically the way we
identified the troubled server was to attempt an RDP connection to each server,
finding the one that we couldn't RDP into, Remotely manage that server and stop
the XML service for that box. As soon as the XML service is stopped on that
box, we are golden.
Thanks,
Mason B. Dively CCA, MCP
Amdocs CMI Production Windows Support
-----Original Message-----
From: Mike Semon [mailto:msemon@xxxxxxx]
Sent: Tuesday, March 18, 2003 8:04 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: NFuse servers extremely slow response
I am curious about this as well. Our Citrix server was the XML gateway and
was easy to troublshoot.
Are people having to check each individual application server or just the
XML gateway servers?
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
Behalf Of Mason Dively
Sent: Tuesday, March 18, 2003 2:05 PM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: NFuse servers extremely slow response
I would be interested in something like this as well if anyone has anything
available. Checking 120 application servers by hand is rather tedious.
Thanks,
Mason B. Dively CCA, MCP
Amdocs CMI Production Windows Support
-----Original Message-----
From: Anders Hansen-Øvre [mailto:Anders.Hansen-Ovre@xxxxxxxxx]
Sent: Tuesday, March 18, 2003 1:59 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: NFuse servers extremely slow response
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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> 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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