Real-time HDR replication monitor for Informix database servers.

NOTE 1: You WILL need to change the infxEnvCmd sub at the bottom to
generate the correct command-line to set up your Informix
environment for your installation based on a DBSERVRNAME.  See the
existing sub for explanation.

NOTE 2: At TransWorks all our DBSERVERNAME names also work as
hostnames of the database server machines.  If this is not true in
your environment, you will also need to change the infxHost sub at the
bottom of the script (above infxEnvCommand -- see NOTE 1).

NOTE 3: This script relies on the /usr/bin/rsh command and rsh
connectivity from the current host to the primary and/or secondary
host.  It will not be able to monitor replication synchronization
otherwise.

Tested with IDS 10.00.FC6, perl v5.8.2, and AIX 5.3.

Works by executing the onstat -g dri command to determine the primary
and secondary server names, then using onstat -l to check for the
current logical log number and position on each (using rsh to run that
command on whichever is the remote server).  Continually displays the
log numbers and positions, moving down a line each time the "number of
logs behind" changes.  Here is an example of the output:

logs: primary=finp1n, secondary=fins1n
logs: behind 0 log(s) at Sun May 20 09:47:12 EDT 2007: primary=530657, secondary=530657
logs: primary=530657 (39.72%), secondary=530657 (39.64%)

In the above example, the first line shows the DBSERVERNAME of both
the primary and secondary servers.  The second line shows that the
secondary is in synch with the primary, and that both are on logical
log number 530657.  The last line, which continually updates, shows
that the primary is 39.72% through its current logical log, and that
the secondary is 39.64% through its log.

We use this script when we suspect we're having an issue with
replication keeping up, and it has served us well.  Please let me know
if you have any questions, comments, or suggestions.

Author: Chris Kelch
Readme Version: $Id: logs.readme,v 1.1 2007/05/20 14:13:20 ckelc Exp $