Job Management Partner 1/Automatic Job Management System 3 System Design (Configuration) Guide

3.4.1 Estimating the size of scheduler log files

This subsection explains how to estimate the size of scheduler log files. The execution logs and operation logs of jobnets and jobs are output to the scheduler log, and this information is used mainly for monitoring the execution statuses of applications. The required size for scheduler log files differs greatly depending on the following considerations.

The mode of the application's operations (jobnet structure)

The number of JP1/AJS3 - View connections

The nature of the operations

The specifications for the environment setting parameters of the configuration definitions

AJSLOG

NETLOG

JOBLOG

OPELOG

The output destination of scheduler log file (per host or scheduler service)

You should therefore estimate an appropriate size for the scheduler log files and change the default disk capacity as required. For details about the default disk capacity and the maximum disk area used for the scheduler log, see 1.2.4 List of log files and directories in the manual Job Management Partner 1/Automatic Job Management System 3 Troubleshooting.

The flow for estimating scheduler log file size is shown below.

Figure 3-1 Flow for estimating scheduler log file size

Organization of this subsection

(1) Formula for estimating scheduler log file size

(2) Example scheduler log file estimate

(3) Expanding the scheduler log file size

(1) Formula for estimating scheduler log file size

The number of formulae needed to estimate the scheduler log file size differs depending on the settings for the environment setting parameters. Select the required formulae based on the conditions listed in the following table.

Table 3-8 Formulas for estimating scheduler log file size

Settings for scheduler service configuration definitions Estimation formula (size: kilobytes)

When all is set for the environment setting parameter AJSLOG A =
(80 x (scheduler-service-start-count + scheduler-service-end-count)
x (number-of-scheduler-services)
/ 1,024

When a setting other than none is set for the environment setting parameter NETLOG B =
{ (90 + maximum-length-of-jobnet-name)
x (number-of-jobnets-started-per-day + number-of-jobnets-ended-per-day + number-of-start-condition-monitoring-processes-started + number-of-start-condition-monitoring-processes-ended + number-of-jobnets-with-hold-setting + number-of-jobnets-being-monitored-for-start-and-end-delays)
x number-of-scheduler-services}
/ 1,024

When a setting other than none is set for the environment setting parameter JOBLOG C =
{ (120 + maximum-job-name-length + maximum-length-of-the-job-execution-agent-name)
x (number-of-jobs-under-the-root-jobnet-started-per-day + number-of-jobs-under-the-root-jobnet-ended-per-day + number-of-jobs-with-hold-setting)
x number-of-scheduler-services }
/ 1,024

When a setting other than none is set for the environment setting parameter OPELOG or REFLOG D =
{ (100 + maximum-length-of-JP1-user-names-that-execute-commands + maximum-length-of-logical-host-names + maximum-length-of-options-specified-for-commands-that-operate-units-and-are-specified-for-output-to-a-log)
x (total-execution-count-of-commands-that-do-not-operate-units-and-have-been-specified-to-output-a-log + total-number-of-units-subject-to-commands-that-operate-units-and-have-been-specified-to-output-a-log)
x number-of-scheduler-services }
/ 1,024

When a setting other than none is set for the environment setting parameter INFOLOG E =
{ (100+ maximum-length-of-JP1-user-names-that-execute-commands + maximum-length-of-logical-host-names + maximum-length-of-options-specified-for-commands)
x (total-execution-count-of-commands-that-do-not-operate-units-and-have-been-specified-to-output-a-log + total-number-of-units-subject-to-commands-that-operate-units-and-have-been-specified-to-output-a-log x 2)
x number-of-scheduler-services }
/ 1,024

After calculating values with the formulae in this table, find the total of the values obtained.

When no is specified in the environment setting parameter AJSLOGOUTPUTEXTEND
Size of the scheduler log file for one day (units: kilobytes) = A + B + C + D + E

When yes is specified in the environment setting parameter AJSLOGOUTPUTEXTEND
Size of the scheduler log file for one day (units: kilobytes) = A + B + C + (D x 1.5) + E

When log data is to be output for each host, calculate the above formula for each scheduler service, and then add up the results to find the total daily volume of log data. If necessary, multiply this by the number of days that you want to keep the log. Set a value a little larger than the estimate.

Settings for scheduler service configuration definitions	Estimation formula (size: kilobytes)
When all is set for the environment setting parameter AJSLOG	A = (80 x (scheduler-service-start-count + scheduler-service-end-count) x (number-of-scheduler-services) / 1,024
When a setting other than none is set for the environment setting parameter NETLOG	B = { (90 + maximum-length-of-jobnet-name) x (number-of-jobnets-started-per-day + number-of-jobnets-ended-per-day + number-of-start-condition-monitoring-processes-started + number-of-start-condition-monitoring-processes-ended + number-of-jobnets-with-hold-setting + number-of-jobnets-being-monitored-for-start-and-end-delays) x number-of-scheduler-services} / 1,024
When a setting other than none is set for the environment setting parameter JOBLOG	C = { (120 + maximum-job-name-length + maximum-length-of-the-job-execution-agent-name) x (number-of-jobs-under-the-root-jobnet-started-per-day + number-of-jobs-under-the-root-jobnet-ended-per-day + number-of-jobs-with-hold-setting) x number-of-scheduler-services } / 1,024
When a setting other than none is set for the environment setting parameter OPELOG or REFLOG	D = { (100 + maximum-length-of-JP1-user-names-that-execute-commands + maximum-length-of-logical-host-names + maximum-length-of-options-specified-for-commands-that-operate-units-and-are-specified-for-output-to-a-log) x (total-execution-count-of-commands-that-do-not-operate-units-and-have-been-specified-to-output-a-log + total-number-of-units-subject-to-commands-that-operate-units-and-have-been-specified-to-output-a-log) x number-of-scheduler-services } / 1,024
When a setting other than none is set for the environment setting parameter INFOLOG	E = { (100+ maximum-length-of-JP1-user-names-that-execute-commands + maximum-length-of-logical-host-names + maximum-length-of-options-specified-for-commands) x (total-execution-count-of-commands-that-do-not-operate-units-and-have-been-specified-to-output-a-log + total-number-of-units-subject-to-commands-that-operate-units-and-have-been-specified-to-output-a-log x 2) x number-of-scheduler-services } / 1,024

(2) Example scheduler log file estimate

In this example the scheduler logs for five days are saved in a single file.

Table 3-9 Example scheduler log file estimate

Condition Example estimation formula

Setting for the environment setting parameter AJSLOG

all

Scheduler service start count

1

Scheduler service end count

1

Number of scheduler services

1

A (kilobytes )=
(80 x (1 + 1) x 1) / 1,024 = approx. 0.16

Setting for the environment setting parameter NETLOG

all

Maximum length of jobnet name

40 bytes

Start count for jobnets executed during one day

1,000

End count for jobnets executed during one day

1,000

Number of jobnets with a hold setting

10

Number of jobnets for which start or end delay monitoring is set

20

Number of scheduler services

1

B (kilobytes) =
{ (90 + 40) x ((1,000 + 1,000) + 10 + 20) x 1} / 1,024 = approx. 258

Setting for the environment setting parameter JOBLOG

all

Maximum length of job name

50 bytes

Maximum length of job execution destination host name

10 bytes

Start count for the number of jobs executed during one day

3,000

End count for the number of jobs executed during one day

3,000

Number of jobs with a hold setting

30

Number of scheduler services

1

C (kilobytes) =
{ (120 + 50 + 10) x ((3,000 + 3,000) + 30) x 1} / 1,024 = approx. 1,060

Setting for the environment setting parameter OPELOG or REFLOG

all

Maximum length of names of JP1 users that execute commands

10 bytes

Length of logical host name

11 bytes

Length of options specified for commands that operate units (ajschange, ajsplan, etc.) and are output to a log

150 bytes

Total execution count of commands that operate units and are specified for output to a log

200

Total number of units subject to commands that operate units and are specified for output to a log

50

Number of scheduler services

1

D (kilobytes) =
{ (100 + 10 + 11 + 150) x (200 + 50) x 1} / 1,024 = approx. 67

Setting for the environment setting parameter INFOLOG

all

Maximum length of names of JP1 users that execute commands

10 bytes

Length of logical host name

11 bytes

Length of options specified for commands that operate units (ajschange, ajsplan, etc.) and are output to a log

150 bytes

Total execution count of commands that operate units and are specified for output to a log

200

Total number of units subject to commands that operate units and are specified for output to a log

50

Number of scheduler services

1

E (kilobytes) =
{ (100 + 10 + 11 + 150) x (200 + 50 x 2) x 1} / 1,024= approx. 80

Scheduler log file capacity for one day (units: kilobytes) =

A + B + C + D + E = 1,465 kilobytes

Size of scheduler log file capacity for 5 days (units: kilobytes) =

1,465 x 5 days = approximately 7,325 kilobytes

Condition	Example estimation formula
Setting for the environment setting parameter AJSLOG all Scheduler service start count 1 Scheduler service end count 1 Number of scheduler services 1	A (kilobytes )= (80 x (1 + 1) x 1) / 1,024 = approx. 0.16
Setting for the environment setting parameter NETLOG all Maximum length of jobnet name 40 bytes Start count for jobnets executed during one day 1,000 End count for jobnets executed during one day 1,000 Number of jobnets with a hold setting 10 Number of jobnets for which start or end delay monitoring is set 20 Number of scheduler services 1	B (kilobytes) = { (90 + 40) x ((1,000 + 1,000) + 10 + 20) x 1} / 1,024 = approx. 258
Setting for the environment setting parameter JOBLOG all Maximum length of job name 50 bytes Maximum length of job execution destination host name 10 bytes Start count for the number of jobs executed during one day 3,000 End count for the number of jobs executed during one day 3,000 Number of jobs with a hold setting 30 Number of scheduler services 1	C (kilobytes) = { (120 + 50 + 10) x ((3,000 + 3,000) + 30) x 1} / 1,024 = approx. 1,060
Setting for the environment setting parameter OPELOG or REFLOG all Maximum length of names of JP1 users that execute commands 10 bytes Length of logical host name 11 bytes Length of options specified for commands that operate units (ajschange, ajsplan, etc.) and are output to a log 150 bytes Total execution count of commands that operate units and are specified for output to a log 200 Total number of units subject to commands that operate units and are specified for output to a log 50 Number of scheduler services 1	D (kilobytes) = { (100 + 10 + 11 + 150) x (200 + 50) x 1} / 1,024 = approx. 67
Setting for the environment setting parameter INFOLOG all Maximum length of names of JP1 users that execute commands 10 bytes Length of logical host name 11 bytes Length of options specified for commands that operate units (ajschange, ajsplan, etc.) and are output to a log 150 bytes Total execution count of commands that operate units and are specified for output to a log 200 Total number of units subject to commands that operate units and are specified for output to a log 50 Number of scheduler services 1	E (kilobytes) = { (100 + 10 + 11 + 150) x (200 + 50 x 2) x 1} / 1,024= approx. 80

(3) Expanding the scheduler log file size

To expand the size of the scheduler log file, use the jajs_config command. In the environment setting parameter LOGSIZE (if outputting log files per scheduler service) or HOSTLOGSIZE (if outputting log files per host), set the value you calculated as described in (1) Formula for estimating scheduler log file size.

For details about the environment setting parameters, see 2.2 Setting up the scheduler service environment in the Job Management Partner 1/Automatic Job Management System 3 Configuration Guide 2.

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