Oracle Traffic Director (OTD) Fails To Connect to Origin Server in SOA Cloud Service (SOACS) (Doc ID 2299318.1)

Last updated on DECEMBER 19, 2022

Applies to:

Symptoms

The steps at https://docs.oracle.com/en/cloud/paas/soa-cloud/csbcs/overview-load-balancer-administration-tasks.html are followed to add a Load Balancer (running OTD) to an newly created SOACS instance prod_inst. This setup is working properly when accessing the SOACS instance via the OTD added from Oracle SOA Cloud Service Console.

Then another SOACS instance is created and let's call a qa_inst. The OTD created from above is re-configured to add a route to this qa_inst SOACS instance. After restarting the OTD, testing shows that the OTD fails to send requests destined to qa_inst instance. However the requests destined to the prod_inst are processed successfully.

The OTD log shows the origin servers in the qa_inst SOACS instance is unreachable:

[2017-05-04T02:05:25+00:00] [<HOST>-lb-1] [TRACE:32] [OTD-10962] [health-check] [pid: <pid>] trying to OPTIONS /, check-http-server reports: server <HOST>-wls-1:<PORT> server unreachable
[2017-05-04T02:05:25+00:00] [<HOST>-lb-1] [WARNING:1] [OTD-11016] [health-check] [pid: <pid>] , health-check reports: all servers in origin server pool <POOL> are offline.

The ping command is also used to verify network connectivity from the OTD VM to the qa_inst VM but it also fails. curl and wget issued from the OTD system are also unable to fetch content from qa_inst SOACS instance.

Changes

Cause

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