SEO

I got a few new p505s recently. Installed AIX 5.3 (ML 3 & ML 4) on
them. Various version of Oracle, DB2 and WAS installed. Each one of
them also has samba, cvs, and java5 installed.

They are downstairs in a rack. I have a machine running Solx86 on my
desk, which i use to export the displays to. Up untill yesterday
everything was working fine. Id export the db2 installer to the
solaris desktop, and install.

When i tried to install a newer version of db2 yesterday on one of the
servers, the gui took almost 10 mins to load. I ran topas on the
server and prstat on the display. The machine that the x-windows was
being EXPORTED to was spiking at 100% CPU usage. The machine the
window was COMING FROM was going along grand.

So i checked the other p505s. All suffering from the same issue. Tried
exporting them to another machine in the same rack. Same issue. Tried
exporting other machines from the same rack to upstairs. They all
worked fine.

Im actually at a loss here to try and figure this out. The fact that
the display is the one with 100% CPU utilization is what is boggling
me.

Any ideas?

bomahony wrote:

> I got a few new p505s recently. Installed AIX 5.3 (ML 3 & ML 4) on
> them. Various version of Oracle, DB2 and WAS installed. Each one of
> them also has samba, cvs, and java5 installed.
>
> They are downstairs in a rack. I have a machine running Solx86 on my
> desk, which i use to export the displays to. Up untill yesterday
> everything was working fine. Id export the db2 installer to the
> solaris desktop, and install.
>
> When i tried to install a newer version of db2 yesterday on one of the
> servers, the gui took almost 10 mins to load. I ran topas on the
> server and prstat on the display. The machine that the x-windows was
> being EXPORTED to was spiking at 100% CPU usage. The machine the
> window was COMING FROM was going along grand.
>
> So i checked the other p505s. All suffering from the same issue. Tried
> exporting them to another machine in the same rack. Same issue. Tried
> exporting other machines from the same rack to upstairs. They all
> worked fine.
>
> Im actually at a loss here to try and figure this out. The fact that
> the display is the one with 100% CPU utilization is what is boggling
> me.
>
> Any ideas?
>

When I have seen behavior like this in the past it was due to fonts.
The Xserver does not have access to the font definitions that the
Xwindows client wants to use, so the Xserver chews up CPU and some
network bandwidth getting font details the hard way. Did a firewall
start blocking the port used by 'xfs' (X Font Server), which is
7100/tcp and 7100/udp according to /etc/services?

Paul Landay

> When I have seen behavior like this in the past it was due to fonts.
> The Xserver does not have access to the font definitions that the
> Xwindows client wants to use, so the Xserver chews up CPU and some
> network bandwidth getting font details the hard way. Did a firewall
> start blocking the port used by 'xfs' (X Font Server), which is
> 7100/tcp and 7100/udp according to /etc/services?
>
> Paul Landay

Thing is i have the DB2 V8.1 cd uploaded to an nfs share. If i export
from an older aix box (same version and ML - by older i mean installed
a few months).

Im loading the application from the same location on both servers.
Port 7100 is open on the xserver (as tcp - udp doesnt seem to be
open).

So why would it accept fonts from one and not the other? Doing a
netstat -an on both exporting servers, they are connecting to ports
2049 & 6001 under tcp4 (so the fonts running over udp doesnt seem to
be an issue).

However,, when i have the performance meter on the desktop of the
xserver, when i load from the machine thats messed up i see a wild
fluctation in packets abd interruprts, as well as the CPU spiking.
When i go from another machine, everything just seems steady.

i there a way to investigate this further?

It turns out that this issue is only happening when exporting to a VNC
desktop running on another unix box (ive tried on HPUX, solaris SPARC
10 and solaris x86 10).

If i export to my own machine using cygwin there is no problem.

Any ideas?

B

In article <1176373726.374161.15590@w1g2000hsg.googlegroups.c om>,
bomahony <bomahony@gmail.com> wrote:
>It turns out that this issue is only happening when exporting to a VNC
>desktop running on another unix box (ive tried on HPUX, solaris SPARC
>10 and solaris x86 10).
>
>If i export to my own machine using cygwin there is no problem.
>
>Any ideas?

Need clarification, first:

Are you saying that you're exporting your displays to a second UNIX host
(HP/UX or Solaris), and you're then using VNC from your PC to connect to
the display on the mediating UNIX host (the HP/UX or Solaris hosts)? I.e.,
something like:


+-----------+ +-----------+ +-----------+
| | X export | | VNC | |
| AIX Host |<---------->| UNIX Host |<---------->| PC Host |
| | | | | |
+-----------+ +-----------+ +-----------+


Is it like the above when you're experiencing problems?

-tom
--

"You can only be -so- accurate with a claw-hammer." --me

On Apr 16, 2:35 am, fer...@xanthia.com (Thomas H Jones II) wrote:
> In article <1176373726.374161.15...@w1g2000hsg.googlegroups.c om>,
>
> bomahony <bomah...@gmail.com> wrote:
> >It turns out that this issue is only happening when exporting to a VNC
> >desktop running on another unix box (ive tried on HPUX, solaris SPARC
> >10 and solaris x86 10).
>
> >If i export to my own machine using cygwin there is no problem.
>
> >Any ideas?
>
> Need clarification, first:
>
> Are you saying that you're exporting your displays to a second UNIX host
> (HP/UX or Solaris), and you're then using VNC from your PC to connect to
> the display on the mediating UNIX host (the HP/UX or Solaris hosts)? I.e.,
> something like:
>
> +-----------+ +-----------+ +-----------+
> | | X export | | VNC | |
> | AIX Host |<---------->| UNIX Host |<---------->| PC Host |
> | | | | | |
> +-----------+ +-----------+ +-----------+
>
> Is it like the above when you're experiencing problems?
>
> -tom
> --
>
> "You can only be -so- accurate with a claw-hammer." --me

Yes something like that, except the unix host is running vnc, and the
x export is goint to the unix vnc terminal. I can then access the unix
machine from any pc.

Thing is this WAS working. I have no idea what just suddenly stopped.

B