8.8.5 Tuning parameters for optimizing the operation of CTM

This section explains how to set up the tuning parameters used to optimize the operation of CTM.

Organization of this subsection

(1) Tuning parameters for setting up the monitoring interval of the operation state of CTM domain managers and CTM daemons
(2) Tuning parameters for setting up the monitoring interval of the load status
(3) Tuning parameters for setting up the timeout lock for CTM daemon
(4) Tuning parameters for setting up a priority order for the requests distributed with CTM

(1) Tuning parameters for setting up the monitoring interval of the operation state of CTM domain managers and CTM daemons

This subsection explains the parameters for tuning the monitoring interval of the operation state of CTM domain manager.

You set up the items listed in the following table in the Easy Setup definition file. Afterward re-build the system using the Smart Composer functionality.

Note that the monitoring interval is the product of the dispatch interval and the coefficient.

Table 8‒42: Parameters for tuning the monitoring interval of the operation state of CTM domain manager
Target	Setup item	Setup target	Location of setup (parameter name)
CTM domain managers present in the same network segment	Dispatch interval	Logical CTM domain manager (`ctm-domain-manager`)	`cdm.SendInterval`
CTM domain managers present in the same network segment	Coefficient	Logical CTM domain manager (`ctm-domain-manager`)	`cdm.AliveCheckCount`
CTM domain managers present in a different network segment	Dispatch interval	Logical CTM domain manager (`ctm-domain-manager`)	`cdm.SendHostInterval`
CTM domain managers present in a different network segment	Coefficient	Logical CTM domain manager (`ctm-domain-manager`)	`cdm.AliveCheckCount`

The parameter for tuning the monitoring interval of the operating status of CTM daemons is as follows:

You set up the items listed in the following table in the Easy Setup definition file. Afterward re-build the system using the Smart Composer functionality.

Table 8‒43: Parameter for tuning the monitoring interval of the operation state of CTM daemon
Setup item	Setup target	Location of setup (parameter name)
Timeout during transfer between CTM daemons	Logical CTM	`ctm.DCSendTimeOut`

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(2) Tuning parameters for setting up the monitoring interval of the load status

This subsection explains the parameter for tuning the monitoring interval of the load status.

You set up the items listed in the following table in the Easy Setup definition file. Afterward re-build the system using the Smart Composer functionality.

Table 8‒44: Parameter for tuning the monitoring interval of the load information
Setup item	Setup target	Location of setup (parameter name)
Timeout during transfer between CTM daemons	Logical CTM	`ctm.LoadCheckInterval`

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(3) Tuning parameters for setting up the timeout lock for CTM daemon

The timeout lock is executed by setting up the timeout occurrence frequency and the monitoring interval.

This subsection explains the parameters for tuning the timeout lock of a CTM daemon.

You set up the items listed in the following table in the Easy Setup definition file. Afterward re-build the system using the Smart Composer functionality.

Table 8‒45: Parameters for tuning the timeout lock of a CTM daemon
Setup item	Setup target	Location of setup (parameter name)
Timeout occurrence frequency	Logical CTM	`ctm.RequestCount`
Monitoring interval	Logical CTM	`ctm.RequestInterval`

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(4) Tuning parameters for setting up a priority order for the requests distributed with CTM

The setting of the priority order of requests distributed with CTM is different for an EJB client application and for a J2EE server. Moreover, for a J2EE server, the setup location differs depending on how the system is built. The following table describes the tuning parameters for setting up the priority order of requests distributed with CTM:

Table 8‒46: Tuning parameters for setting up the priority order of requests distributed with CTM
Setup unit	Method of setup	Location of setup
EJB client application	Specify the system property to be specified while editing the file or starting the EJB client application	Definition file (when editing the file) `usrconf.properties` Parameter name `ejbserver.client.ctm.RequestPriority` key
J2EE server	Smart Composer functionality	Definition file Easy Setup definition file Setup target Logical J2EE server (`j2ee-server`) Parameter name `ejbserver.client.ctm.RequestPriority`

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