On Sat, Apr 11, 2015 at 10:17 PM, Mike Grogan <[email protected]>
wrote:
>
> As far as the mosaics ... as I mentioned, this is just for 2 image
> mosaics. There is nothing else on this box at this point (except one
> vector store with one layer that's not being used). I thought the default
> max connections in each pool was for 10 per store, but have experimented
> with max\ connections set to 5, and still very quickly reach the 98
> connection limit on postgres ... ALL from just harvesting mosaics
> sequentially (not entire directory at once) in these 2 stores. So, the 98
> connections I showed are all created from harvesting in these 2 stores.
>
>
We are running production setups with more complex situations (more
mosaics, more traffic), so I guess we need to figure out what's making
yours different... I guess it's the lack of JNDI usage, we only do
production setups with JNDI because normally we have many mosaics
(and if we don't, each mosaic would have its own private pool).
>From what I see, assuming GeoServer is the only application that can chew
away connections, we are probably leaking pools... are you calling
reloads in your scripts?
> My current datastore.properties for both stores is:
>
>
> SPI=org.geotools.data.postgis.PostgisNGDataStoreFactory
> host=localhost
> port=5432
> database=******
> schema=mosaics
> user=******
> passwd=******
> max\ connections=5
> Loose\ bbox=true
> Estimated\ extends=false
> validate\ connections=true
> Connection\ timeout=10
> preparedStatements=true
>
>
> So, does this not seem like connections are being leaked somewhere?
> Mosaic harvesting not using the pool?
>
As far as I know, that's not possible, there is no way to dodge it.
>
> I wanted to break out of my script and make sure there wasn't anything
> wrong with my workflow. So, I created the simplest mosaic I could with the
> same datastore.properties file posted above. It consisted of 2 temperature
> files from the geosolutions multidimensional tutorial in a directory called
> "casefour'.
>
> When I run the following command at the command line:
>
> curl -v -u xxxxx:xxxxx -XPOST -H "Content-type: text/plain" -d
> "file:/home/ubuntu/rest_harvesting/casefour"
> http://localhost:8080/geoserver/rest/workspaces/geosolutions/coveragestores/casefour/external.imagemosaic
>
> there is a 1 : 1 relationship every time I execute this command to a new
> connection being opened to the database and remaining idle afterwards. If
> I run that command 90 times, I end up with 90 connections open in the db.
> max\ connections is set to 5 (default 10, right) ... so why should I see
> more than 5 connections?
>
Indeed I don't know (off the top of my head at least). Daniele will
hopefully chime in an add some extra insight
Cheers
Andrea
--
==
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==
Ing. Andrea Aime
@geowolf
Technical Lead
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