Symptoms

Error is observed in Control Panel when trying to browse APS Catalog:

Error: Unexpected catalog service error. couldn't connect to host

Cause

Most likely OA cannot access APS catalog server. This may happen due to several reasons:

  1. Privacy Proxy (privoxy) service is not running
  2. The domain name apscatalog.com is not resolved to correct IP address from Privacy Proxy host
  3. OA Management Node cannot connect to Privacy Proxy
  4. Privacy Proxy is not able to connect to APS Catalog via port 80

Resolution

Verify that Privacy Proxy (privoxy) is up and running:

  1. Find the host where PrivacyProxy service is installed:

    113462How to find host(s) where particular service is installed

  2. Log in to the host and verify it is up and running:

    [root@cp ~]# service privoxy status
privoxy (pid 13367) is running...`

  3. Make sure that domain apscatalog.com is resolved to a correct IP address and accessible via port 80:

    [root@cp ~]# ping apscatalog.com
PING apscatalog.com (64.131.89.42) 56(84) bytes of data.
64 bytes from apscatalog.com (64.131.89.42): icmp_seq=1 ttl=44 time=189 ms
64 bytes from apscatalog.com (64.131.89.42): icmp_seq=2 ttl=44 time=189 ms
[root@cp ~]# wget -SO- --spider apscatalog.com
Spider mode enabled. Check if remote file exists.
--2012-07-13 10:01:02-- http://apscatalog.com/
Resolving apscatalog.com... 64.131.89.42
Connecting to apscatalog.com|64.131.89.42|:80... connected.
HTTP request sent, awaiting response...
HTTP/1.1 200 OK
Server: nginx/0.8.55
 Date: Fri, 13 Jul 2012 03:02:40 GMT
 Content-Type: text/html; charset=UTF-8
 Connection: keep-alive
 Vary: Accept,Cookie
 Cache-Control: must-revalidate, no-transform, max-age=0
 Length: unspecified [text/html]
 Remote file exists and could contain further links, but recursion is disabled -- not retrieving.

  4. Verify that OA Management Node is able to connect to Privacy Proxy host:

    [root@poacore ~]# telnet 10.20.30.40 8008
Trying 10.20.30.40...
Connected to 10.20.30.40.
Escape character is '^]'.

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