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  6. ALM-12027 Host PID Usage Exceeds the Threshold

ALM-12027 Host PID Usage Exceeds the Threshold

Description

The system checks the PID usage every 30 seconds and compares it with the threshold. This alarm is generated when the PID usage exceeds the threshold and is cleared when it is less than or equal to the threshold.

Attribute

Alarm ID

Alarm Severity

Automatically Cleared

12027

Major

Yes

Parameters

Parameter

Description

ServiceName

Specifies the service for which the alarm is generated.

RoleName

Specifies the role for which the alarm is generated.

HostName

Specifies the host for which the alarm is generated.

Trigger Condition

Generates an alarm when the actual indicator value exceeds the specified threshold.

Impact on the System

No PID is available for new processes and service processes are unavailable.

Possible Causes

  • Too many processes are running on the node.
  • The value of pid_max needs to be increased.
  • The system is abnormal.

Procedure

  1. Increase the value of pid_max.

    1. On MRS Manager, click the alarm in the real-time alarm list. In the Alarm Details area, obtain the IP address of the host that generated the alarm.
    2. Log in to the alarm node.
    3. Run the cat /proc/sys/kernel/pid_max command to check the value of pid_max.
    4. If the PID usage exceeds the threshold, run the following command to double the value of pid_max:

      echo new pid_max value > /proc/sys/kernel/pid_max.

      For example,

      echo 65536 > /proc/sys/kernel/pid_max

    5. Wait 5 minutes and check whether the alarm is cleared.
      • If yes, no further action is required.
      • If no, go to Step 2.

  2. Check whether the system environment is abnormal.

    1. Contact the public cloud O&M personnel to check whether the operating system is abnormal.
      • If yes, go to Step 2 to rectify the fault.
      • If no, go to Step 3.
    2. Wait 5 minutes and check whether the alarm is cleared.
      • If yes, no further action is required.
      • If no, go to Step 3.

  3. Collect fault information.

    1. On MRS Manager, choose System > Export Log.
    2. Contact technical support engineers for help, detail see technical support.

Related Information

N/A