Jonathan,

just take a look at the mediapackages in question using the presentation 
machine's REST endpoints. The interesting piece is the urls of the tracks and 
images, they should point to one and the same distribution server (apache) or 
node. 

Since your workers seem to be getting requests for static content, I would bet 
that they are also hosting the distribution services, and that in 
config.properties on these workers, the download.url is pointing to server.url 
instead of to the shared distribution server (which, again, may be an apache 
running somewhere serving the files off the NSF or the presentation node).

Tobias

On 25.01.2013, at 21:01, Jonathan Felder <[email protected]> wrote:

> We have a distributed environment with 1 admin server, 1 engage server, and 2 
> workers.  They all use shared storage mounted via nfs off of the admin server.
> 
> We noticed that engage was having trouble playing videos.  With further 
> investigation, we found out that worker2 had hung for some reason.
> 
> As it turns out, it appears that the worker machines are serving files for 
> engage.
> 
> For example, worker2's logs have this in them:
> 
> 2013-01-25 11:44:44 DEBUG (StaticResourceServlet:381) - Serving bytes:0-31870
> 2013-01-25 11:44:44 DEBUG (ServiceRegistryJpaImpl$JobProducerHearbeat:2272) - 
> Finished checking for unresponsive services
> 2013-01-25 11:44:48 DEBUG (StaticResourceServlet:116) - Looking for static 
> resource 
> '/static/c4cc3509-6882-4173-a9be-e6a7f3567154/6a1ebb97-bea6-49ee-8160-77f99ecc8659/PRESENTER_BLACKMAGIC1.flv'
> 2013-01-25 11:44:48 DEBUG (StaticResourceServlet:131) - Serving static 
> resource 
> '/export/mh_data/opencast/shared/downloads/c4cc3509-6882-4173-a9be-e6a7f3567154/6a1ebb97-bea6-49ee-8160-77f99ecc8659/PRESENTER_BLACKMAGIC1.flv'
> 2013-01-25 11:44:48 DEBUG (StaticResourceServlet:381) - Serving 
> bytes:0-224744377
> 2013-01-25 11:45:04 DEBUG (StaticResourceServlet:116) - Looking for static 
> resource 
> '/static/c4cc3509-6882-4173-a9be-e6a7f3567154/attachment-3/SCREEN_BLACKMAGIC0.jpg'
> 2013-01-25 11:45:04 DEBUG (StaticResourceServlet:131) - Serving static 
> resource 
> '/export/mh_data/opencast/shared/downloads/c4cc3509-6882-4173-a9be-e6a7f3567154/attachment-3/SCREEN_BLACKMAGIC0.jpg'
> 2013-01-25 11:45:04 DEBUG (StaticResourceServlet:381) - Serving bytes:0-31870
> 2013-01-25 11:45:05 DEBUG (StaticResourceServlet:116) - Looking for static 
> resource 
> '/static/c4cc3509-6882-4173-a9be-e6a7f3567154/6a1ebb97-bea6-49ee-8160-77f99ecc8659/PRESENTER_BLACKMAGIC1.flv'
> 2013-01-25 11:45:05 DEBUG (StaticResourceServlet:131) - Serving static 
> resource 
> '/export/mh_data/opencast/shared/downloads/c4cc3509-6882-4173-a9be-e6a7f3567154/6a1ebb97-bea6-49ee-8160-77f99ecc8659/PRESENTER_BLACKMAGIC1.flv'
> 2013-01-25 11:45:05 DEBUG (StaticResourceServlet:381) - Serving 
> bytes:0-224744377
> 2013-01-25 11:45:33 DEBUG (StaticResourceServlet:116) - Looking for static 
> resource 
> '/static/c4cc3509-6882-4173-a9be-e6a7f3567154/attachment-11/SCREEN_BLACKMAGIC0.jpg'
> 2013-01-25 11:45:33 DEBUG (StaticResourceServlet:131) - Serving static 
> resource 
> '/export/mh_data/opencast/shared/downloads/c4cc3509-6882-4173-a9be-e6a7f3567154/attachment-11/SCREEN_BLACKMAGIC0.jpg'
> 2013-01-25 11:45:33 DEBUG (StaticResourceServlet:381) - Serving bytes:0-4441
> 2013-01-25 11:45:33 DEBUG (StaticResourceServlet:116) - Looking for static 
> resource 
> '/static/c4cc3509-6882-4173-a9be-e6a7f3567154/attachment-8/SCREEN_BLACKMAGIC0.jpg'
> 2013-01-25 11:45:33 DEBUG (StaticResourceServlet:131) - Serving static 
> resource 
> '/export/mh_data/opencast/shared/downloads/c4cc3509-6882-4173-a9be-e6a7f3567154/attachment-8/SCREEN_BLACKMAGIC0.jpg'
> 2013-01-25 11:45:33 DEBUG (StaticResourceServlet:381) - Serving bytes:0-3778
> 
> This seems rather odd to me as I'd expect engage, which also has access to 
> those files, to serve them.  Is this normal behavior>  If not, why would this 
> be happening?  If so, can this behavior be modified?
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