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http://opencast.jira.com/browse/MH-8290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=29501#comment-29501
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Jaime Gago commented on MH-8290:
--------------------------------
I'm not sure about what you mean by "behind" and "before",do you think you can
detail your explanations referencing ports (for the sanity of it let's assume
MH default is 8080 and httpd is 80),inbound/outbound traffic, listening
service, and POST/GET calls?
In any case what I mean by "Matterhorn traffic going through httpd with
mod_proxy" is *all* the Matterhorn services hosts are configured with httpd
serving (aka listening) Matterhorn traffic via mod_proxy forwarding requests on
port 80 to port 8080 as seen in httpd/conf.d/mh.conf of each host.
<VirtualHost *:80>
...
ProxyRequests Off
ProxyPreserveHost On
ProxyPass / http://127.0.0.1:8080/
ProxyPassReverse / http://127.0.0.1:8080/
...
and then MH in config.properties
...
org.osgi.service.http.port=8080
...
org.opencastproject.server.url=http://myhost.institution.edu
...
I don't see either how the REST call responsible to keep the lights green in
Admin UI/statistics could be successful when there is nothing listening on the
other side of the call (i.e. when httpd is down), so there is something wrong
somewhere for sure.
> Service Heartbeat marks servers offline too quickly resulting in false
> positives.
> ----------------------------------------------------------------------------------
>
> Key: MH-8290
> URL: http://opencast.jira.com/browse/MH-8290
> Project: Matterhorn Project
> Issue Type: Sub-Task
> Components: Architecture & Services
> Affects Versions: 1.3
> Reporter: Adam McKenzie
> Assignee: Tobias Wunden
> Priority: Critical
> Fix For: 1.4, 1.3
>
>
> Currently the service registry marks servers offline if a single request
> fails. I will add some code to create a maximum number of failed requests
> before a server is marked offline.
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