- MRS Manager Operation Guide (Applicable to 2.x and Earlier Versions)
- Alarm Reference (Applicable to Versions Earlier Than MRS 3.x)
- ALM-25500 KrbServer Service Unavailable
ALM-25500 KrbServer Service Unavailable¶
Description¶
The system checks the KrbServer service status every 30 seconds. This alarm is generated when the KrbServer service is abnormal.
This alarm is cleared when the KrbServer service is in normal state.
Attribute¶
Alarm ID | Alarm Severity | Auto Clear |
---|---|---|
25500 | Critical | 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. |
Impact on the System¶
When this alarm is generated, no operation can be performed for the KrbServer component in the cluster. The authentication of KrbServer in other components will be affected. The health status of components that depend on KrbServer in the cluster is Bad.
Possible Causes¶
The node where the KrbServer service locates is faulty.
The OLdap service is unavailable.
Procedure¶
Check whether the node where the KrbServer service locates is faulty.
Go to the MRS cluster details page and click Components.
Note
For MRS 1.7.2 or earlier, log in to MRS Manager and click Services.
Choose KrbServer > Instances. Go to the KrbServer instance page and view the host name of the node where the KrbServer service is deployed.
On the Alarms page of MRS Manager, check whether the alarm ALM-12006 Node Fault is generated.
Check whether the host name in the alarm information is the same as the actual host name in 1.b.
Rectify the fault by following steps provided in ALM-12006 Node Fault.
In the alarm list, check whether the alarm ALM-25500 KrbServer Service Unavailable is cleared.
If yes, no further action is required.
If no, go to 3.
Check whether the OLdap service is unavailable.
Go to the cluster details page and choose Alarms.
Check whether ALM-12004 OLdap Resource Is Abnormal is generated.
Rectify the fault by following steps provided in ALM-12004 OLdap Resource Is Abnormal.
In the alarm list, check whether the alarm ALM-25500 KrbServer Service Unavailable is cleared.
If yes, no further action is required.
If no, go to 3.
Collect fault information.
On MRS Manager, choose System > Export Log.
Contact technical support engineers for help. For details, see technical support.
Reference¶
None