You may need to open a help ticket with Tableau Support but my guess is that because you can connect sometimes it makes me want to point the blame at something outside Tableau like db timing out (maybe exacerbated by network latency?).
Actually that's a good thought Toby about db timing out or Network Latency. But what db is it trying to connect? As I am trying to connect to PDS, it should not connect to any db right? Also I opened the ticket with Tableau support and their initial response is
The following could be possible causes for this:
1. Proxy Server
3. Worker online but not responding
Yes, I did configure for proxy server initially using the following cmd
tabadmin set gateway.public.host proxy_server_name
But I don't think this is needed as I am not trying to use the proxy_server for user to use this proxy URL, rather I want to use the proxy server to provide Tableau Maps to my Tableau server as our Tableau servers can not connect to the public network (Internet) as they are behind a firewall. So I thought I should just reset the proxy (to get rid of the error), so did the following tabadmin set gateway.public.host PRIMARY_TABLEAU_SERVER
I still does not fix the issue. Is there any other way for me to reset the gateway.public.host to default or remove the proxy?
I do not know if its the Firewall or Worker not responding as I can connect to PDS sometimes. If it were Firewall or Worker not responding I should never be able to connect to them at all I believe. I think it is something related to the Proxy Server setting.
Did you get an answer to this as it is currently giving me problems which are very strange.
Sandeep Moola, so the issue you are having is only when a map is involved? This was an issue for us (maps) because Tableau uses an outside provider to feed the map info. I don't do networking, we have a team that does it, but the IT guys found this knowledge base article very helpful: http://kb.tableau.com/articles/Issue/cannot-create-firewall-rules-to-access-mapping-servers?userSource=1
The guys also made "...an F5 iRule change..." and that greatly sped up the map pulling process. I don't know what they are talking about but we use VIPs (Virtual IPs) to allow this stuff to happen so I'm guessing it's a tool they use.
Note: When making changes to the .tms files you need to restart the Tableau Server for the changes to take effect. It's not in the KB article but I confirmed it with Tableau Support that it must be done.
I don't want to take you down the wrong path but if it's maps you're having issues with then this may help with your conversation with Support.
My issues is resolved and is related to the proxy server setup. When I removed the proxy server settings, the issue is fixed. Thanks for all the advise.
If you are using windows, check your environment variables. Maybe you can have some variables like http_proxy or https_proxy. Remove them.