Hitachi

JP1 Version 12 JP1/Navigation Platform Setup and Operations Guide


3.4.2 Estimating the size of the operation log file

To estimate the size of the operation log file, consider your required usage of Navigation Platform, using the following table as a reference.

Table 3‒3: Usage of operation log assumed by Navigation Platform

No.

Item

Scale (numbers)

1

Number of users interacting with an Operational Content Execution Window per day

10

2

Number of Operational Contents to be executed per user per hour

6

3

Number of nodes per Operational Content

10

4

Actual hours of work on Navigation Platform per day

8 hours

5

Length of time to retain the operation log

180 days#

#

The Navigation Platform Reporting window lets you analyze the operation log for up to six months. We therefore recommend not changing the default value of 180 days as the length of time to retain the operation log.

If you plan to use Navigation Platform on a scale different from the numbers shown in the table, you must estimate the disk space required according to the formulas below.

Organization of this subsection

(1) Formulas for estimating the size of the operation log file (when using URLs without ucnpOptions parameters)

Formula when the property ucnp.base.server.operationlog.user.analyze.info is true

In Table 3-3 Usage of operation log assumed by Navigation Platform, 1.0 × {(numbers assumed for the environment to be set up corresponding to rows 1 to 4 in the table} divided individually and then multiplied by (numbers in rows 1 to 4 in the table} = operation log file size required for the environment to be set up (unit: GB)

Formula when the property ucnp.base.server.operationlog.user.analyze.info is false

Calculation result of the estimation formula when the property ucnp.base.server.operationlog.user.analyze.info is true × 0.25 = operation log file size required for the environment to be set up (unit: GB)

Estimation example

The operation log file size required for an environment satisfying these conditions can be calculated as follows:

1.0 × {20 ÷ 10} × {9 ÷ 6} = 1 × 2 × 1.5 = 3.0 GB

Tip

If the operation log file becomes too large, it becomes difficult to analyze for your own purposes. Therefore, if there is no need to analyze the operation log for your own purposes, we recommend specifying false for the property ucnp.base.server.operationlog.user.analyze.info in the user property file (ucnp_user.properties).

(2) Formula for estimating the size of the operation log file (when using URLs with ucnpOptions parameters)

If the URL to access Navigation Platform includes ucnpOptions parameters, the values specified in the ucnpOptions parameters will be added to the operation log. This means the results of the following formula must be added to the calculation results of the estimation formula in 3.4.2(1) Formulas for estimating the size of the operation log file (when using URLs without ucnpOptions parameters).

Formula for the operation log file size required for ucnpOptions parameters

Size of the ucnpOptions parameter × row 1 × row 2 × row 3 × row 4 in Table 3-3 Usage of operation log assumed by Navigation Platform× 180 = operation log file size required for the ucnpOptions parameter (unit: GB)