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| Tip |
|---|
Hint!You can change the maximum file size and the number of backup files by adding the following lines:
log4j.appender.a.MaxFileSize=100MB
log4j.appender.a.MaxBackupIndex=10
You can add a filtering rule by adding the line log4j.logger.<configuration name>=<log level>. This is useful when you want to set different log levels for specific folders or configurations. If you want to apply the filtering rule to all APL configurations in the default folder, change the last line in the previous example to log4j.logger.Default=DEBUG. |
| Info |
|---|
| title | Example. Sets the general log level to ERROR and to DEBUG for the agent named agent_1 |
|---|
|
log4j.logger.aplLogger=ERROR, a
log4j.appender.a=com.digitalroute.apl.log.DRRollingFileAppender
log4j.appender.a.file=${mz.home}/log/{pico}_{workflow}.log
log4j.appender.a.layout=com.digitalroute.apl.log.JsonLayout
log4j.logger.Default.debug.workflow_1.agent_1=DEBUGIf you want to apply the filtering rule to all APL configurations in the default folder, change the last line in the previous example to log4j.logger.Default=DEBUG.
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| Note |
|---|
Note!For performance reasons it is recommended to use the DRRollingFileAppender and configure individual appenders for each workflow. Only use the DRRollingMultiFileAppender if you need individual files on a workflow instance level. |
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The fields in the log output are described below.
Field | Description |
|---|
timestamp | The time when the message was logged. The UTC timezone and international standard date and time notation is used by default.
You can specify the date format by adding the following line in the configuration file: log4j.appender.a.layout.DateFormat=<Java SimpleDateFormat pattern>
For information about how to use SimpleDateFormat patterns, see:
https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html |
level | The log level i e FATAL, ERROR, WARN, INFO, DEBUG, or TRACE. |
thread | The name of the workflow thread. |
category | The logged configuration. This field contains the category class of the appender that is defined in the configuration file. |
message | The log message is specified in the APL command. |
pico | The name of the Execution Context. |
| Warning |
|---|
Warning!The ECs must be restarted if you manually delete or rename active log files or backup log files. |
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