1.2.4 Verifying the prerequisite network environment
To use Performance Management, you must evaluate the naming of the monitoring hosts and specify name resolution settings and port numbers.
- Organization of this subsection
(1) Evaluating monitoring host names
Monitoring host names are used to identify individual hosts on the Performance Management system. If you evaluate the types and values of the names used as the monitoring host names before you install Performance Management, it will be easier to specify monitoring host names and name resolution settings that will be required after installation of Performance Management.
There are two types of monitoring host names. One type is aliases (any names you choose), and the other type is the real host names (host names that can be checked with the hostname or uname -n command). You must first evaluate which type is to be used, and then you must evaluate the actual values that will be used as the monitoring host names.
Note that the default is the real host names, but we recommend that you change them to aliases for the following reasons:
-
When aliases are used, there will be no need to change the host name settings if the real host names are changed after Performance Management operation has begun.
-
Aliases support an environment in which multiple hosts can have the same real host name.
This manual assumes that aliases are used as the monitoring host names in anticipation of the possibility that real host names will be changed. The following aliases are used in this manual for the monitoring manager and for five monitoring agents:
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Alias for the monitoring manager: aliasmgr
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Aliases for monitoring agents: aliasagt1, aliasagt2, aliasagt3, aliasagt4, and aliasagt5
(2) Evaluating how to resolve monitoring host names
You must specify settings so that monitoring host names can be resolved between the monitoring manager and the monitoring agents. For example, if aliases are used as the monitoring host names, names must be resolvable by using aliases.
The following methods can be used to resolve names:
- Using a DNS or the hosts files
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Use this method if you use names that are common to other applications.
- Using Performance Management's settings file (jpchosts file)
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Use this method if you use the names only in the Performance Management system. After the program is installed, the jpchosts file will be used to resolve names on the monitoring manager host and on each monitoring agent host.
For both methods, specify a loopback address as localhost in the host file.
Related topics
(3) Evaluating port numbers
You must evaluate the port numbers to be used by Performance Management on the monitoring manager host and the monitoring agent hosts. The protocol used is TCP/IP. If a default port number used by Performance Management is available, use that port number as is. If a default port number is already in use, change to an available port number.
If you must change a port number, make the change after you have installed Performance Management. Because port numbers for the same service must match between the monitoring manager host and the monitoring agent hosts, we recommend that you make a list of the port numbers that are not being used on each host before you install Performance Management.
The port numbers shown in the following table are set as the Performance Management default port numbers:
Role of service |
Service name |
Port number |
Program that uses the service |
|||
---|---|---|---|---|---|---|
PFM - Manager |
PFM - Web Console |
PFM - Base |
PFM - Agent Option for Platform |
|||
Service configuration information management |
Name Server |
22285 |
Y |
Y |
Y |
Y |
Service status management |
Status Server |
22350 |
Y |
-- |
Y |
-- |
Monitoring console communication |
View Server |
22286 |
Y |
-- |
-- |
-- |
Communication between Web browser and the PFM - Web Console host |
Web Service |
20358# |
-- |
Y |
-- |
-- |
AJP communication |
Web Console |
20359# |
-- |
Y |
-- |
-- |
RMI registry |
20369# |
-- |
Y |
-- |
-- |
|
Management server |
20368# |
-- |
Y |
-- |
-- |
- Legend:
-
Y: Used.
--: Not used.
- #:
-
You must specify a different port number when the Web Service or the Web Console service in PFM - Web Console cannot use the default port number, for example, because the default port number is already used for another program. For details about how to specify port numbers to be used for the services, see 1.3.4 Setting up PFM - Web Console (Windows) and 1.4.4 Setting up PFM - Web Console (Linux).
For any other service or program, a port number that is available on the host is assigned automatically each time the service is started. However, if Performance Management is used in a firewall environment, all port numbers must be fixed and passage through the firewall must be permitted.
Related topics