I have some more details on my problems with the JMC. My workstation is
an Ultra-5 with 512 MB of memory with about 311 MB free when running my
test. I am using Solaris 8 and Netscape 4.75. My server is a Sun E3000
dual CPU with 1 GB memory. I am using a stop watch for my times and I
think my times are accurate +- one second. I timed the JMC home page
loading 3 times to get a decent sample base. I have commented out the
default server and have the admin server + 10 of my own servers. My
servers have on average 8 Web Applications each. I have verified that
there is no DOCTYPE tag in any of my web.xml files. Here are the times:

2  servers:  5s,  5s,  4s
3  servers:  8s,  7s,  7s
4  servers: 10s, 10s, 10s
5  servers: 15s, 14s, 14s
6  servers: 17s, 16s, 16s
7  servers: 22s, 20s, 21s
8  servers: 28s, 28s, 28s
9  servers: 46s, 35s, 36s
10 servers: 55s, 41s, 43s
11 servers: died, 48s, died, died, 47s, 56s

>From this it seems that things are acceptable (but slow) up to 8 servers
and times vary after that and my browser starts dieing after 10 servers.
I tried 11 servers on a Windows 98 machine, Netscape 4.77 took ~40s and
IE couldn't render the pages successfully. So the problem can't be
totally blamed on Netscape on Solaris even though it does seem to be
much slower.

Since I am adding 3 new clients in the next couple of months, the
degradation of the JMC is a major concern to me and I wonder if I will
even be able to log onto the JMC after adding another server or two with
the degradation being what I am observing. I will try the command line
interface that Charles Arehart pointed me to, but am not too sure how
well that will work long term.

I have been using JRun since it was from Live Software and don't want to
be forced to look at other solutions, but I might have to if I can't
find some work around to this problem. Maybe I'll have to do all of my
admin from a Windows machine if that is my only option, but currently I
don't have one of those available. Surely there must be someone else out
there who is using a lot of server instances? Am I the only one doing
this?

Lloyd

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