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The log management interface can view the background  logs as required and refresh the  logs. If you select the automatic refresh, the logs will be automatically updated once per every 20 seconds. Previous logs can be viewed as well.

 

Log management interface is as shown in the figure below:

【Log file】The default name of the log file is bi.log. If the file name selects the previous file, it will switch to the previous log file display interface. The log file jvm.log.0.current records the log related to JVM output. The name and size  of the file can be modified via JAVA_OPTS parameter in tomcat. 

【New log file】Create a new log file.

【Download】In the local mart environment, users can choose the start time and time span to download the log files according to their needs. In a distributed cluster environment, all nodes' logs can also be downloaded at the C node.

【Refresh】Refresh the log manually. When the file name or row number is changed, click the refresh button to display the refreshed page.

【Automatic refresh]】After clicking the button, it will be automatically updated once per every 20s.

【Show log content】Filter the log records that meet the corresponding log level for easy viewing. For example, if only "WARN" is clicked, only the log records of "WARN" level will be displayed. Log level can be set in the "system setting" module. At this time, the system logs only record log information that higher than or equal to the log level. The log levels are ERROR、WARN、 INFO、DEBUG、TRACE。

【Number of lines】Set the number of lines to be displayed. For example, if you set it to 10 lines, the last 10 lines of the logs will be displayed.

【Display all】Display all the logs after clicking the button.

【Selection page】Click "all" button, the system will automatically page the logs. The page number box will change to the input state. In addition, the current page and the total pages will be displayed simultaneously. You can enter the page in the page number box to switch to the logs of corresponding page so that large volume of data can be checked.