[jadmin] jabber14 config questions

[Paul Cahill]

When we moved from Jabberd 1.42 (Solaris 2.6) to Jabberd14 1.4.4 
(solaris 9), there were some new config options that I hadn't seen 
before.   I have them listed below, from the jabber.xml.dist file, 
followed by my questions

Example:
     <!--  With the <secret/> element you can configure a fixed dialback 
secret. You will need this to cluster multiple s2s instances in which 
case all instances have to use the same dialback secret. If no secret is 
configured, the server will generate a new random secret on each start. -->
      <!-- <secret>somethingSecret</secret> -->
Question:  We have about 10 jabber servers that function as the actual 
IM servers.  These servers talk to eachother and also login to two MUC 
servers running MUC 0.6 and Jabberd14.  We've had some problems where 
the MUC server basically stops responding to new requests and the 
chatrooms take 2 -5 minutes for messages to appear.  A netstat reveals 
about 450 - 460 established connections to the MUC server.

Example:
      <!--  How long we are waiting for an outgoing connection to be 
established before we bounce pending messages to this server. Default: 
30 seconds   -->
      <!-- <queuetimeout>30</queuetimeout> -->
Question:
If we don't have this specified explicitly in the config file what will 
happen?  If DNS response has a possibility of being slow, should this 
number be increased?

Example:
      <!--  Close idle server to server connections after this number of 
seconds. Default: 900 seconds (15 minutes)  -->
      <!-- <idletimeout>900</idletimeout> -->
Question:
similar to the previous question, if this is not in the config file, 
will the idle connections not time out? 

also, 60% of our servers used multiple host names for virtual servers.  
I know this is in the config file comments:
   Multiple <host/> entries are allowed - each one is for a
    separate virtual server. Note that each host entry must
    be on one line, the server doesn't like it otherwise! :)
    Use lowercase for the hostname.
   
But what doesn't the server like about it?  We actually do list them all 
on the same line and don't have a problem (that we know of) with it and 
the servers function okay -with the exception to an occasional dialback 
issue.  Is there a max number of hosts one server should handle?
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