Managing Collector Logs

Last updated - 16 June, 2026

You can control how much information is logged by your Collector and how long the log files are retained.

Adjusting Log Level

You can adjust log levels to increase how much information is logged to debug an issue, or to decrease how much information is logged to save disk space. 

1. In LogicMonitor, navigate to Settings > Collectors.
2. Under the Collectors tab, select the Collector whose log level you want to adjust.  
3. Select the Logs tab and then select Manage Collector Logs.
   
   The log levels on a per component basis for that Collector display.
   

The log level for each Collector component controls what information is logged for that component. Available log levels are:

• Trace—This log level is the most verbose, and logs every action of the Collector in full detail. Note that this can use a significant amount of disk space if your Collector is actively monitoring a large number of resources, and as such is typically only recommended for debugging purposes.
• Debug—Logs detailed information about Collector tasks (not as much information as trace log level). The debug log level can make it easier to identify an issue and track the root cause.
• Info—It is the default log level. It logs basic information about Collector tasks.
• Warn—Information is only logged when something is not right, but it may not be causing an issue yet.
• Error—Information is only logged when something is wrong.
• Disable—No information is logged.

For example, you might write a script datasource and your Collector is getting no data, but you do not know the issue. You can increase the log level for the collector.script component to debug or trace and then look at the logs (either using the Collector debug facility or on the Collector machine itself) to troubleshoot the issue.

Modifying Log File Retention Property

Collector log files are rotated based on size, and not date. By default, there are three log files of 64M each. If needed, you can change these numbers in the wrapper.conf file (in the conf directory) where the Collector is installed. You can edit the wrapper.conf file in the conf directory on the Collector machine itself, or you can edit the file directly from your LogicMonitor account UI.

1. In LogicMonitor, navigate to Settings > Collectors.
2. Under the Collectors tab, select the Collector whose log file retention property you want to modify.
3. Select  More and then select Collector Configuration.
4. Select the Wrapper Config tab and locate the Wrapper logging properties and
5. Modify the values in the wrapper.logfile.maxsize and wrapper.logfile.maxfiles properties.
   
6. Select Save and Restart to apply the changes.

Sending Logs to LogicMonitor

You can send logs to LogicMonitor support. You can collaborate with the support team and enable them to look through the Collector log files.

1. In LogicMonitor, navigate to Settings > Collectors.
2. Under the Collectors tab, select the Collector whose logs you want to send.  
3. Select  More and then select Send Logs to LogicMonitor.
   
   Logs that are sent to LogicMonitor support display under the Logs section for that Collector. You can filter them based on the time range to limit the result.