tencent cloud

Overview

LogListener service logs are used to record the operation, collection, and monitoring activities of LogListener, and you can configure visualized graphs to display such log data.

Default configuration

Note：

• LogListener service logs are only about collection and monitoring activities of LogListener, and do not support writing into other kinds of data.
• Log data generated by this feature does not incur costs.
• cls_service_logging is a unified logset for LogListener service logs.

Operations

• Viewing LogListener status
  When the LogListener service logs are enabled, you can view LogListener running status and collection statistics. You can view the number of active LogListeners, LogListener status distribution and other statistical metrics on the service_log_dashboard dashboard.

• Log collection monitoring configuration
  You can configure the collection and monitoring service logs by metric/error type. For example:

  • MEM, CPU, collection speed, collection latency, or other metrics
  • The number of parsing errors of LogListener

• File-level monitoring
  With the LogListener service logs are enabled, you can view the monitoring logs of files and directories. For example:

  • All collection statistics files of one IP
  • The amount of logs collected under a certain path on a certain IP, such as app1 application logs located in /var/log/app1/. You can get the statistics of logs collected under this path.
  • The collection statistics of a topic.

Prerequisites

Only LogListener v2.5.4 and above support collection and monitoring service logs by machine/machine group. You’re advised to upgrade LogListener to the latest version.

Directions

Enabling the service logs

1. Log in to the CLS console.
2. In the left sidebar, click Machine Group to go to the machine group management page.
3. On the machine group list page, select the target machine group and click to enable the LogListener service logs.

Disabling LogListener service logs

1. Log in to the CLS console.
2. In the left sidebar, click Machine Group to view the machine group list.
3. Select the target machine group, and click to disable the LogListener service logs.

Note：

After this feature is disabled, the log data saved in the logset cls_service_logging will not be deleted automatically. You can manually delete the logset where the service logs are saved.

Dashboard of Service Logs

When the LogListener service logs are enabled, CLS will create a dashboard service_log_dashboard by the type of recorded logs to display LogListener’s collection and monitoring statistics.

Collection statistics dashboard

You can go to the Dashboard page of the CLS console, click the ID of the target dashboard to view LogListener collection statistics, including its status, parsing failure rate, sending success rate, and other metrics.

Log Types

LogListener status logs

The parameters of the log topic loglistener_status are detailed as follows:

LogListener alarm logs

The parameters of the log topic loglistener_alarm are detailed as follows:

AlarmType:

LogListener collection logs

The parameters of the log topic loglistener_business are detailed as follows: