Help Center/ MapReduce Service/ User Guide (Kuala Lumpur Region)/ FusionInsight Manager Operation Guide (Applicable to 3.x)/ Alarm Reference (Applicable to MRS 3.x)/ ALM-12069 AOS Resource Is Abnormal
Updated on 2022-08-12 GMT+08:00
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ALM-12069 AOS Resource Is Abnormal

Alarm Description

HA checks the aos resources of Manager every 81 seconds. This alarm is generated when HA detects that the aos resources are abnormal for 2 consecutive times.

This alarm is cleared when the AOS resource is normal.

Resource Type of AOS is Single-active. Active/standby will be triggered upon resource exceptions. When this alarm is generated, the active/standby switchover is complete and new AOS 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

12069

Major

Yes

Parameters

Parameter

Description

Source

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

ServiceName

Specifies the name of 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 active/standby FusionInsight Manager switchover occurs.
  • The AOS process repeatedly restarts, which may cause the FusionInsight Manager login failure.

Possible Causes

The AOS process is abnormal.

Procedure

Check the random port range of the system.

  1. In the alarm list on FusionInsight Manager, locate the row that contains the alarm, and view the name of the host for which the alarm is generated.
  2. Log in to the host for which the alarm is generated as user root.
  3. Run the su -omm command and then the sh ${BIGDATA_HOME} /om-server/OMS/workspace0/ha/module/hacom/script/status_ha.sh command to check whether the status of the AOS resources managed by the HA is normal. In the single-node system, the AOS resource is in the normal state. In the dual-node system, the AOS resource is in the normal state on the active node and in the stopped state on the standby node.

    • If it is, go to 6.
    • If it is not, go to 4.

  4. Run the vi $BIGDATA_LOG_HOME/omm/oms/ha/scriptlog/aos.log command to view the AOS resource logs, check whether the keyword ERROR exists. Analyze the logs to locate and rectify the fault.
  5. Five minutes later, check whether this alarm is cleared.

    • If it is, no further action is required.
    • If it is not, go to 6.

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, and set Start Date and End Date for log collection to 1 hour before and after the alarm generation time, respectively. Then, click Download.
  4. Contact the O&M personnel and send the collected log information.

Alarm Clearing

After the fault is rectified, the system automatically clears this alarm.

Related Information

None