From: "Steve Kochak" <skochak@(email surpressed)>
Subject: Linux Disappearing, Windows Staying
   Date: Thu, 01 Feb 2007 15:07:46 -0500

I have a Rush in a mixed Linux/Windows deployment.  When viewing rushtop, 
random Linux boxes disappear and then reappear ever minute or so while the 
Windows boxes are always there.  To complicate things, the Windows boxes are 
on one VLAN and the Linux boxes are on another while my monitoring stations 
are on yet a third VLAN.  Anyone else have these issues? 

Steve Kochak wrote:

[posted to rush.general]

I have a Rush in a mixed Linux/Windows deployment. When viewing rushtop, random Linux boxes disappear and then reappear ever minute or so while the Windows boxes are always there. To complicate things, the Windows boxes are on one VLAN and the Linux boxes are on another while my monitoring stations are on yet a third VLAN. Anyone else have these issues?

	Sounds like the linux machines are under heavy enough load doing rendering
	that they're not able to respond quickly enough to show up in rushtop.

	Either that or the network is maxed out to the point that some packets
	are being dropped.

	I'd ignore it unless it's very persistent.

	Check the rushd.logs for errors about dropped packets or unreachable
	errors, as that might be an indication a switch or router isn't working
	correctly. You might also check the network stats (ie. netstat -i)
	on the linux machines to see if there's any RX/TX errors, eg:

[erco@ontario] ## ROOT ## 645 # netstat -i
Kernel Interface table
Iface       MTU Met    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eth1       1500   0 12604410      0      0      0  8546173      0      0      0 BMRU
                             ^^^^^^^^^^^^^^^^^^^^          ^^^^^^^^^^^^^^^^^^^^

	..those should all be zero if things are going perfectly well.
	Similarly, check for problems on the interfaces that 'rushtop'
	is running interactively on.

	Probably not very many people are using rush over a VLAN, so it's
	possible the VLAN is a bottleneck.. again, check for network errors
	at the VLAN endpoints.

--
Greg Ercolano, erco@(email surpressed)
Rush Render Queue, http://seriss.com/rush/
Tel: (Tel# suppressed)
Fax: (Tel# suppressed)
Cel: (Tel# suppressed)

It's also important to make sure all clients are running the same version of 
Rush.

Problem resolved.  :)


"Steve Kochak" <skochak@(email surpressed)> wrote in message 
news:1472-rush decimal general at seriss decimal com...
>I have a Rush in a mixed Linux/Windows deployment.  When viewing rushtop, 
>random Linux boxes disappear and then reappear ever minute or so while the 
>Windows boxes are always there.  To complicate things, the Windows boxes 
>are on one VLAN and the Linux boxes are on another while my monitoring 
>stations are on yet a third VLAN.  Anyone else have these issues?
> 

Steve Kochak wrote:

[posted to rush.general]

It's also important to make sure all clients are running the same version of Rush.

Problem resolved.  :)

	Yes, I think James and I figured that out by phone last Friday.

	There was a mix of 102.41* and 102.42* versions on the same network,
	and those versions are not network compatible.

	Versions that /are/ network compatible are the lettered versions..
	ie. 102.42a, 42a1, 42a2.. 42a8.

--
Greg Ercolano, erco@(email surpressed)
Rush Render Queue, http://seriss.com/rush/
Tel: (Tel# suppressed)
Fax: (Tel# suppressed)
Cel: (Tel# suppressed)