Help Center > > User Guide> MRS Manager Operation Guide> Alarm Reference> ALM-12053 File Handle Usage Exceeds the Threshold

ALM-12053 File Handle Usage Exceeds the Threshold

Updated at: Dec 31, 2019 GMT+08:00

Description

The system checks the file handle usage every 30 seconds and compares the actual usage with the threshold (the default threshold is 80%). This alarm is generated when the file handle usage exceeds the threshold for several times (5 times by default) consecutively.

To change the threshold, choose System > Threshold Configuration > Device > Host > Host Status > Host File Handle Usage > Host File Handle Usage.

When the hit number is 1, this alarm is cleared when the host file handle usage is less than or equal to the threshold. When the hit number is greater than 1, this alarm is cleared when the host file handle usage is less than or equal to 90% of the threshold.

Attribute

Alarm ID

Alarm Severity

Automatically Cleared

12053

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

The I/O operations, such as opening a file or connecting to network, cannot be performed and programs are abnormal.

Possible Causes

  • The number of file handles cannot meet the current service requirements.
  • The system is abnormal.

Procedure

Increase the number of file handles.

  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 for which the alarm is generated.
  2. Use PuTTY to log in to the host for which the alarm is generated as user root.
  3. Run the ulimit -n command to check the current maximum number of file handles of the system.
  4. If the file handle usage exceeds the threshold, contact the system administrator to increase the number of file handles.
  5. Wait 5 minutes and check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 6.

Check whether the system environment is abnormal.

  1. Contact the system administrator to check whether the operating system is abnormal.

    • If yes, go to 7 to rectify the fault.
    • If no, go to 9.

  2. Wait 5 minutes and check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 9.

Collect fault information.

  1. On MRS Manager, choose System > Export Log.
  2. Contact the O&M personnel and send the collected log information.

Related Information

N/A

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