Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-12072 FloatIP Resource Is Abnormal
Updated on 2024-09-23 GMT+08:00
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ALM-12072 FloatIP Resource Is Abnormal

Description

HA checks the floatip resources of Manager every 9 seconds. This alarm is generated when HA detects that the floatip resources are abnormal for 3 consecutive times.

This alarm is cleared when the FloatIP resource is normal.

Resource Type of FloatIP is Single-active. Active/standby will be triggered upon resource exceptions. When this alarm is generated, the active/standby switchover is complete and new FloatIP resources have been enabled on the new active FusionInsight Manager. In this case, this alarm is cleared. This alarm is used to notify users of the cause of the active/standby switchover.

Attribute

Alarm ID

Alarm Severity

Auto Clear

12072

Major

Yes

Parameters

Name

Meaning

Source

Specifies the cluster or system for which the alarm is generated.

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.

Impact on the System

  • The alarm persists for a long time, causing frequent active/standby switchovers of FusionInsight Manager. As a result, users cannot log in to FusionInsight Manager and perform O&M operations.
  • The FloatIP process is repeatedly restarts, which may lead to the failure to visit the native service UI.

Possible Causes

  • The floating IP address is abnormal.

Procedure

Check the floating IP address status of the active management node.

  1. In the alarm list on FusionInsight Manager, locate the row that contains the alarm, and view the address of the host for which the alarm is generated and the resource name.
  2. Log in to the active management node as user root.
  3. Run the following command, go to the ${BIGDATA_HOME}/om-server/om/sbin/ directory.

    su - omm

    cd ${BIGDATA_HOME}/om-server/om/sbin/

  4. Run the sh status-oms.sh command, and execute the status-oms.sh script to check whether the floating IP address of the active FusionInsight Manager is normal. View the command output, locate the row where ResName is floatip, and check whether the following information is displayed.

    For example:

    10-10-10-160 floatip Normal Normal Single_active
    • If it is, go to 8.
    • If it is not, go to 5.

  5. Run the ifconfig command to check whether the NIC with the floating IP address exists.

    • If it does, go to 8.
    • If it does not, go to 6.

  6. Run the ifconfig NIC name Floating IPaddress netmask Subnet mask command to reconfigure the NIC with the floating IP address. (For example, ifconfig eth0 10.10.10.102 netmask 255.255.255.0).
  7. Five minutes later, check whether the alarm is cleared.

    • If it is, no further action is required.
    • If it is not, go to 8.

Collect fault information.

  1. On FusionInsight Manager, choose O&M > Log > Download.
  2. Select Controller and OmmServer for Service and click OK.
  3. Click in the upper right corner. In the displayed dialog box, set Start Date and End Date to 1 hour before and after the alarm generation time respectively and click OK. Then, click Download.
  4. Contact the O&M personnel and send the collected log information.

Alarm Clearing

This alarm will be automatically cleared after the fault is rectified.

Related Information

None