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Agile Controller EEM V200R010C10 Alarm Handling

This document provides the explanations, causes, and recommended actions of alarms on the EEM.
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DCP_103104505 The System Memory Is Insufficient

DCP_103104505 The System Memory Is Insufficient

Description

When the DCP detects that the memory usage is higher than the threshold, this alarm is generated. The default detection period is 1 minute and the default threshold for the memory usage is 80%.

Attribute

Alarm ID Alarm Severity Alarm Type

103104505

Major

Enviromental alarm

Impact on the System

  • An exception occurs during DCP cache update, and a DCP service exception occurs.
  • The DCP response is slow and there is a delay in performing some operations.
  • There is a delay in real-time services such as alarm report. Users cannot obtain information immediately.
  • The service processing is slow. As a result, messages are stacked.

Possible Causes

  • The DCP server is busy temporarily.
  • The threshold for the memory usage of the DCP server is incorrect.
  • Time-consuming operations or operations that consume system resources are performed on the DCP server.
  • The hardware performance of the DCP server is low and cannot support DCP running.

Procedure

  1. Check whether the DCP server is busy temporarily.

    1. Choose Monitoring > Alarm > Current Alarm to access the Current Alarm page.
    2. Check First Occurrence Time and determine whether alarms meet the following conditions:
      • The alarm is generated sometimes and can be automatically cleared within 10 minutes.
      • The alarm is generated at one time only every day.
      • The generated alarm can be automatically cleared within 30 minutes and affects the system in a short period of time.
      • The alarm does not cause serious impact. That is, the alarm meets the following conditions:
        • The alarm does not cause data loss.
        • The performance delay is within one period.
        • The alarm delay is within 30s.
        • The GUI response time is within 10s.
      • Many other alarms or events are reported during the time range when the alarm about a high memory usage is generated.
      • If so, go to 1.c.
      • If not, go to 3.
    3. If the alarm matches one condition in 1.b, no action is required. Wait for 5 minutes, and then check whether the alarm is cleared on the Current Alarm page.
      • If so, the process is ended.
      • If not, go to 2.

  2. Check whether the threshold for the memory usage of the DCP server is correct.

    1. Contact the administrator and check whether the threshold for the memory usage of the DCP server is correct.
      • If so, contact the administrator or technical support personnel.
      • If not, go to 3.
    2. After the threshold for the memory usage of the DCP server is reconfigured, wait for 5 minutes and check whether the alarm is cleared on the Current Alarm page.
      • If so, the process is ended.
      • If not, go to 3.

  3. Check whether the memory usage of the DCP application exceeds 90%.

    1. Check whether the memory usage of the DCP application in the task manager of the DCP server exceeds 90%.
      • If so, this is because DCP applications cause the memory to be exhausted. Determine whether to wait for service processing corresponding to DCP applications.
        • If so, go to 3.b.
        • If not, collect alarm information and contact Huawei technical support personnel.
      • If not, go to 4.
    2. After services corresponding to DCP application processes are handled, wait for 5 minutes and check whether the alarm is cleared on the Current Alarm page.
      • If so, the process is ended.
      • If not, go to 4.

  4. Contact the administrator and check whether the memory usage of non-DCP applications exceeds 90%.

    1. Contact the administrator and check whether the memory usage of non-DCP applications exceeds 90%.
      • In the SUSE Linux OS, run the top command to check the memory usage of each process in memory of the command output.
      • In the Windows OS, check the memory usage of each process in memory on the process page through the task manager.
      • If so, contact the administrator. Determine whether to wait for the administrator to take measures.
        • If so, go to 4.b.
        • If not, collect alarm information and contact Huawei technical support personnel.
      • If not, go to 5.
    2. After services corresponding to non-DCP application processes are handled, wait for 5 minutes and check whether the alarm is cleared on the Current Alarm page.
      • If so, the process is ended.
      • If not, go to 5.

  5. Check whether the hardware performance of the DCP server is low and cannot support DCP running.

    1. Contact the administrator and check whether the DCP server meets the following conditions:
      • The DCP hardware specifications are higher than DCP server hardware specifications.
      • The EEM frequently or continuously receives alarms reported by the DCP.
      • If so, contact the administrator. Determine whether to wait for processing of the administrator.
        • If so, go to 5.b.
        • If not, collect alarm information and contact Huawei technical support personnel.
      • If not, collect alarm information and contact Huawei technical support personnel.
    2. After the administrator handles the DCP server hardware fault, wait for 5 minutes and check whether the alarm is cleared on the Current Alarm page.
      • If so, the process is ended.
      • If not, collect alarm information and contact Huawei technical support personnel.

Clearing

When the memory usage of a disk or an array is smaller than the threshold (default value 80%), this alarm will be automatically cleared.

NOTE:
After the alarm is reported to the EEM, the administrator rectifies the fault on the DCP that reports the alarm. If the alarm is rectified and the DCP restarts, the DCP that runs normally does not trigger the alarm and the alarm cannot be cleared automatically. The administrator has to manually clear the alarm before logging in to the EEM.
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Updated: 2019-03-07

Document ID: EDOC1100053923

Views: 9020

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