Filter
Top Products
Using the Integration Capabilities of the VPO Motif-based GUI
Event Integration Through Messages
Chapter 3 133
Hints and Tips for Event Integration from Message
Sources
This section provides a summary of the recommended methods to
integrate events from the various VPO message sources.
❏ Use the VPO templates to filter important messages from those that
are less acute.
Effective filtering ensures that the Message Browsers of responsible
operators do not become cluttered by messages of low severity.
Carefully consider whether it is necessary to forward messages of
status warning and below to the VPO management server.
❏ Avoid using the severity unknown when defining templates and
conditions.
❏ Set the polling interval, used to check the message source, to as long a
time period as acceptable.
❏ For VPO performance reasons, define patterns for pattern-matching
with care.
• Avoid the use of the asterisk (*) wildcard to match an arbitrary
string whenever possible. A comparison against this symbol is the
most time-consuming.
• Define the order of message and suppress conditions carefully;
this is not only important for the semantics of the template, but
also for pattern-matching performance. VPO stops processing
when the first message or suppress condition matches the source,
for example, an entry in a logfile. You can greatly improve
performance by placing an effective suppress condition at the
beginning of the list of conditions.
❏ Define new Message Groups for your integration solution whenever
possible. Only put new messages into existing message groups when
they really belong there.
If you find that there are too many message groups, you can regroup
messages by selecting Actions: Configure Message: Regrouping
on Server from the Node Bank menu.