HetuEngine Log Overview

Log Description

Log paths

The HetuEngine logs are stored in /var/log/Bigdata/hetuengine/ and /var/log/Bigdata/audit/hetuengine/.

Log archiving rules

By default, the maximum size of an audit log file is 30 MB, and the maximum number of log archive files is 20.

By default, the maximum size of a single run log file is 100 MB, and the maximum number of archived log files is 20. The maximum size of a single HetuEngine compute instance run log file is 100 MB, and logs archived in HDFS are retained for 30 days by default.

To change the maximum size of a single run log file or audit log file or change the maximum number of log archive files of an instance, perform the following operations:

1. Log in to Manager.
2. Choose Cluster > Services > HetuEngine > Configurations > All Configurations.
3. In the parameter list of log levels, search for logback.xml to view the current run log and audit log configurations of HSBroker, HSConsole, HSFabric, and QAS.
   

   Parameters related to HetuEngine compute instance run logs

   • log.clean.task.enabled: indicates whether to enable scheduled compute instance log clearing.
   • log.clean.task.expire-time.day: indicates the expiration time of compute instance logs archived in HDFS. The default value is 30 days.
   • log.max-history: indicates the maximum retention period of compute instance logs locally. The default value is 7 days.
   • log.clean.task.schedule.plan: indicates the schedule for automatically clearing compute instance logs. The value is a cron expression. Only a fixed triggering time in a day can be specified.
   • log.max-size: indicates the maximum size of a single log file of a HetuEngine compute instance. The default value is 100 MB.
   • log.max-total-size: indicates the maximum size of compressed HetuEngine compute instance log files. The default value is 5 GB.

4. Select the configuration item to be modified and modify it.
5. Click Save, and then click OK. The configuration automatically takes effect after about 30 seconds.

Log Level

Table 2 describes the log levels provided by HetuEngine. The priorities of log levels are OFF, ERROR, WARN, INFO, and DEBUG in descending order. Logs whose levels are higher than or equal to the specified level are printed. The number of printed logs decreases as the specified log level increases.

To change the run log or audit log level of an instance, perform the following steps:

1. Log in to FusionInsight Manager.
2. Choose Cluster > Services > HetuEngine > Configurations > All Configurations.
3. In the parameter list of log levels, search for logback.xml to view the current run log and audit log levels of HSBroker, HSConsole, and HSFabric.
4. Select a desired log level.
5. Click Save, and then click OK. The configuration automatically takes effect after about 30 seconds.

To change the HetuEngine Coordinator/Worker log level, perform the following steps:

1. Log in to FusionInsight Manager.
2. Choose Cluster > Services > HetuEngine > Configurations > All Configurations.
3. In the parameter list of log levels, search for log.properties to view the current log levels.
4. Select a desired log level.
5. Click Save, and then click OK. Wait until the operation is successful.
6. Choose Cluster > Services > HetuEngine > Instance, click the HSBroker instance in the role list, and choose More > Restart Instance.
7. After the HSBroker instance is restarted, choose Cluster > Services > HetuEngine. On the overview page, click the link next to HSConsole WebUI to go to the compute instance page.
8. Select the compute instances to be restarted and click Stop. After all instances are stopped, click Start to restart the compute instances.

Log Format

The following table lists the HetuEngine log formats.