Load Management

Load Management supports real-time monitoring and alerts for load, memory utilization, and CPU utilization. If the load reaches a specific threshold, the system will notify you through SMS, emails, or platform messages, as shown in the following figure.

Load Surveillance includes Real-time Load and Intelligent Alert.

Real-time Load

The memory utilization and the CPU utilization of the system in the most recent half an hour are displayed through charts, as shown in the following figure.

1. Load

The real load of JVM (Java Virtual Machine) cannot be well reflected through the memory utilization due to the function of the GC (Garbage Collection) mechanism.

Therefore, the load score is introduced in FineDataLink to reflect the real load of JVM. The GC data can be obtained through GC callbacks. Various states of the JVM load can also be accurately measured.

2. Memory Utilization = Currently used memory/Maximum available memory

Currently used memory: the memory size currently used (unit: bytes)

Maximum available memory: the maximum memory (unit: bytes) that can be allocated to the JVM

3. CPU Utilization = CPU utilization during the collection

Note:

The actual server pressure is calculated in Load Surveillance. Memory and CPU surveillance only represent the objective status and cannot accurately reflect the server pressure. It is for reference only.

Intelligent Alert

Function Description

1. Triggering Condition

The intelligent alert is triggered if the utilization rates of the old generation are all more than 90% after three consecutive Full GCs.

2. Time Interval Limit

The time interval between two alerts cannot be less than 5 minutes.

For example, if the system notifies you when the alert is triggered at 2:00 P.M., it does not notify you when the alert is triggered again at 2:03 P.M.

3. Content of the Intelligent Alert Notification

"Hello, the #webname# system #clustername# has too serious overload, which may incur downtime risks. Pay attention to this problem. You are advised to analyze the performance problem of the current system under System Management > Intelligent O&M > Cloud O&M."

Note:

1. #clustername# is empty in the standalone environment.

2. webname is the platform title name.

Setting Intelligent Alert

The Intelligent Alert function is disabled by default. Enable Intelligent Alert as the admin, set Alert Mode to SMS Reminder, Platform Message, or Email Notification, and click Save after completion, as shown in the following figure.

1. SMS Reminder

Note:

To enable SMS Reminder, you need to first enable the Use SMS Platform function. For details, see SMS.

2. Platform Message

3. Email Notification

Note:

To enable Email Reminder, you need to first configure the mail server. For details, see Mailbox.

Blank Load Management Page

Problem:

After you log in to FineDataLink and choose System Management > Intelligent O&M > Load Management, the Load Management tab page is displayed, but it is blank, as shown in the following figure.

Cause:

The Intelligent O&M function point is not registered or its authorization has expired, affecting the use of the Load Management function and causing abnormal page display.

Solution:

Contact FanRuan sales personnel to renew/purchase the usage authorization for the Intelligent O&M function point.