Forum OpenACS Q&A: Clustering

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1: Clustering
Posted by Nima Mazloumi on 09/09/09 09:35 AM
Hi I have set up several server and use pound as a proxy for load balancing. I works fine but if in one server a new site node is created it is not available on the other server. Only after a restart all nodes are known.

How can I tell the server to reload the site map?

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2: Re: Clustering (response to 1)
Posted by Raúl Morales Hidalgo on 09/09/09 01:10 PM
Hi Nima,

We have a scheduled procedure every 5 minutes on the slaves,

Here is the code:

set root_node_id [db_string get_root_node_id {select node_id from site_nodes where parent_id is null} -default {}]
if { ![empty_string_p $root_node_id] } {
site_node::update_cache -sync_children -node_id $root_node_id
}

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3: Re: Clustering (response to 2)
Posted by Nima Mazloumi on 09/10/09 10:38 AM
Thank you.

Is there a save way via to tell the aolserver to shut down instead of simply killing the process?

Right now I use

fuser -k -n tcp PORT

or

kill -9 PID

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4: Re: Clustering (response to 1)
Posted by Raúl Morales Hidalgo on 09/10/09 12:29 PM
Nima, Have you tried ns_shutdown?