Diagnosing ELB Instances

Scenarios

ELB diagnosis helps you detect abnormal backend servers and provides rectification suggestions, improving load balancing efficiency.

Precautions

ELB diagnosis can be performed only for backend servers that have been associated with listeners.

Diagnosing ELB Instances

1. Log in to COC.
2. In the navigation pane, choose Fault Management > Trouble Diagnosis.
3. Click Diagnose Now on the Diagnose ELB card.
4. Click Add and configure the parameters on the Select Instance dialog box.

   Table 1 Parameters for selecting an instance

   Parameter	Description	Example Value
   Selection Method	Select an instance selection method. Manual Selection: Manually select an instance based on Enterprise Project, View Type, Resource Type, Region, and Target Instance. Auto select all: This option is not supported currently.	Manual Selection
   Enterprise Project	Select an enterprise project from the drop-down list. You can choose All.	All
   View Type	Select a view type. CloudCMDB resources: Select an instance from the resource list. CloudCMDB application groups: Select an instance from the application group list.	CloudCMDB resources
   Resource Type	The default value is used and cannot be changed.	ELB
   Region	Select a region from the drop-down list.	CN-Hong Kong
   Target Instance	Set filter criteria in the filter box and select the filtered instances.	-

5. Select the server in the diagnosis configuration area.
6. Click OK.

   After the diagnosis is complete, view the diagnosis report.