User FAQs

Why Is Monitoring Data Not Displayed in Real Time on the AOM Page After Resources Are Created?

After you create resources such as hosts, applications, components, and processes, the ICAgent reports their monitoring data every 10 minutes. Only when a report period ends, can monitoring data be displayed on the AOM page.

Why Is the Resource Status Displayed as Normal on the AOM Page After Resources Are Deleted?

After you delete a resource such as a host or workload from a Cloud Container Engine (CCE) cluster, the resource status is still Normal on the Host Monitoring or Container Monitoring page of AOM. This is normal. The status of the deleted resource will be changed to Deleted 30 minutes later.

Why Is Data Not Reported After the ICAgent Is Installed on a Non-Huawei Cloud Host?

After the ICAgent is installed on a non-Huawei Cloud host, the ICAgent needs to access the following ports to report data. If a firewall is configured on the local host, ensure that the communication in the outbound direction of the following ports is normal. Otherwise, no data can be reported and related functions are unavailable.

• Port 8149: reports metric data.
• Port 8102: reports log data.
• Port 8923: reports tracing and JVM metrics of Application Performance Management (APM).
• Port 30200: indicates the control port of the ICAgent.
• Port 30201: indicates the control port of the ICAgent.

What Can I Do If the ICAgent Fails to Be Upgraded?

In the custom cluster scenario, if the ICAgent fails to be upgraded, log in to the VM node and directly run the ICAgent installation command again.

Because the ICAgent supports overwriting installation, directly reinstall the ICAgent without uninstallation.

Can I Install the ICAgent on a New Node by Copying the Image of a Node with the ICAgent Installed?

In the non-Huawei Cloud host scenario, if you install the ICAgent on a node and then copy its image to install the ICAgent on another node, you are advised to uninstall the ICAgent on the new node and then reinstall it. Otherwise, ID conflicts may occur between the two nodes. The ICAgent automatically generates a unique ID file on each node. When an image is copied to install the ICAgent on another node, the same ID file may be generated on different nodes.

What Types of Log Files Can Be Collected?

If you specify a directory, all .log, .trace, and .out log files in this directory are collected by default. If you specify a log file, only this file is collected. The specified file must be a text file. Other types of log files, such as binary log files, cannot be collected.

Can AOM Monitor Non-Huawei Cloud Servers?

Yes. Purchase a Huawei Cloud Elastic Cloud Server (ECS) as a jump server to forward monitoring data, and install the ICAgent on the non-Huawei Cloud servers. For details, see Installing the ICAgent.

Does the ICAgent Consume Lots of Resources Such as Memory and CPU?

• AOM collects basic metrics, including CPU and memory of VMs, containers, and processes.

  Resource consumption: The resource consumption of the ICAgent is related to the number of containers and processes. In normal service traffic, the ICAgent consumes about 30 MB memory and 3% single-core CPU.

  Usage restriction: Ensure that the number of containers running on a single node is less than 1000.

  Protection mechanism:

  • The ICAgent consumes a maximum of two CPU cores.
  • When the memory consumed by the ICAgent exceeds min {4 GB, node physical memory/2}, AOM restarts the ICAgent for protection.
    

    Min {4 GB, node physical memory/2} indicates the smaller value between 4 GB and node physical memory/2.

• AOM also collects log files, including syslog, standard container output, user configuration path, and container mounting files.

  Resource consumption: The resource consumption of the ICAgent is closely related to the log volume, number of files, network bandwidth, and backend service processing capability.

How Does AOM Obtain a Custom Host IP Address on the Agent Management Page?

By default, AOM traverses all NICs on the VM and obtains the IP addresses of the Ethernet, bond, and wireless NICs based on priorities in descending order. To ensure that AOM obtains the IP address of a specific NIC, set the IC_NET_CARD=Desired NIC name environment variable when starting the ICAgent.

Example:

1. Add export IC_NET_CARD=eth2 to /etc/profile.
2. Run the source /etc/profile command to make the environment variable effective in the shell.
3. Go to the /opt/oss/servicemgr/ICAgent/bin/manual/ directory, and stop and then restart the ICAgent.

   bash mstop.sh

   bash mstart.sh

4. Check whether the environment variable is properly transferred to the application.

   strings /proc/{icagentprocid}/envrion | grep IC_NET_CARD

• If the IP address displayed on ICAgent is 127.0.0.1, the ICAgent may fail to obtain the local IP address during startup. This problem may occur when a VM is powered off and then restarted. To solve the problem, you only need to restart the ICAgent.
• If the IP address of your host changes (for example, a new IP address is allocated during renewal), the original IP address may be displayed on the agent management page. To solve the problem, you only need to restart the ICAgent.

What Can I Do If the ICAgent Fails to Be Installed in the Windows Environment and the "SERVICE STOP" Message Is Displayed?

Symptom: The ICAgent fails to be installed in the Windows environment and the "SERVICE STOP" message is displayed. No ICAgent task exists in the task manager. No ICAgent service exists in the system service list. When the sc query icagent command is executed, a message is displayed, indicating that no ICAgent is found.

Cause: Antivirus software, such as 360 Total Security, blocks registration of the ICAgent service.

Solution:

1. Check whether antivirus software, such as 360 Total Security, is running.
2. First close the antivirus software and install the ICAgent again.

In the Windows environment, manually add log collection paths. The ICAgent can collect .log, .trace, and .out files, but does not collect binary files or Windows system logs.

What Can I Do If the ICAgent Is Successfully Installed on ECS but Its Status Is Abnormal on the Agent Management Page?

The AK/SK is incorrect, or no agency is set when Installation Mode is set to Create Agency. To solve the problem, perform operations according to How Do I Obtain the AK/SK by Creating an Agency? and install the ICAgent again.