A machine group is a server object configured to collect logs by LogListener of CLS. You can configure machine groups through the CLS console, and categorize them by use cases.
3. Select the region of your CLS, such as Shanghai, and then click Create Machine Group.
4. Configure the following information in the pop-up:
Logset Name: enter cls_test for example.
Configuration Mode: select Configure machine group IP.
IP: enter IPs of machines.
Note:
Enter one IP per line. Do not enter IPs of Windows machines.
If you are using Tencent Cloud machines in the same region, you can enter private IPs directly, with one IP per line.
If you are using machine groups of different regions, enter public IPs.
LogListener Auto Upgrade: disclosed by default and can be configured.
LogListener Service Logs: enabled by default. This feature records logs of the running status and log collection among other aspects of LogListener. For details, see LogListener Service Logs.
5. Click OK.
Creating a machine group by machine ID
If your machine IPs change frequently, you need to modify machine group configuration once the IPs change.
To avoid the trouble, you can use CLS to configure machine groups dynamically by machine ID. You just need to enter the machine IDs when configuring LogListener, CLS will recognize and add these machines into the machine group automatically.
Note:
Configuring machine groups by machine ID is supported only on LogListener v2.3.0 and above. You need to upgrade lower versions manually to use this feature.
3. Select the region of your CLS, such as Guangzhou, and then click Create Machine Group.
4. In the pop-up, configure the following items:
Logset Name: enter cls_test for example
Configuration Mode: select Configure machine ID
Machine ID: enter machine IDs.
Note:
Enter one machine ID per line, and do not enter Windows machine IDs.
LogListener Auto Upgrade: you’re advised to enable this feature. For more information, see LogListener Upgrade Guide.
LogListener Service Logs: enabled by default. This feature records logs of the running status and log collection among other aspects of LogListener. For details, see LogListener Service Logs.
5. Click OK.
6. Log in to a machine added above, run the following command, open the /etc/loglistener.conf file under the installation directory of LogListener.
Take the /user/local installation directory as an example:
vi /usr/local/loglistener-2.3.0/etc/loglistener.conf
7. Press i to enter the edit mode.
8. Find the group_label parameter, and enter your custom machine IDs and separate them with a comma (,).
9. Press Esc to exit the edit mode.
10. Enter :wq, and press Enter to save the settings.
11. Run the following command, restart LogListener, and then the machine group will be created.
/etc/init.d/loglistenerd restart
Viewing Machine Status
A machine group uses the heartbeat mechanism to maintain its connection with the CLS system. A machine group with LogListener installed regularly sends heartbeats to CLS.
4. View the machine group status in the pop-up.
You can view the machine group status to see if it works normally. If so, your server can communicate with CLS normally.
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