[CA APIM] Software version API When reading DNS settings of GW

Document ID : KB000004950
Last Modified Date : 14/02/2018
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Issue:

Changed DSN Server and change ed /etc/resolv.conf of API Gateway server. 
After that the case that name resolution wasn't right occurred. 

The following error is shown. 

2016-12-07T10:31:45.271+0900 WARNING 173com.l7tech.server.policy.assertion.ServerHttpRoutingAssertion:4042: Problem routing to https://xxxxx/app Error msg: Unable to obtain HTTP response from https://xxx/app  Unknown host: xxxxx: unknown error

Frequency 1/20 

 

 

 

Environment:
API Gateway 3.5 Software Linux
Cause:

The cause is cash of JAVA MV.

Information on  IP/Addresses of old DNS is left in the cash.

So, the case that name resolution wasn't right occurred. 

 

Resolution:

API Gateway uses Security Manager of Java VM. 
So, the re-start of the API Gateway service is necessary to clear the cash.

Do the following command on API Gateway server.

01.  service ssg stop.

02.  service ssg start