[GeoNode-users] GeoNode2.8.0 installed from source Thumbnails Error

Tue Jun 12 08:20:07 PDT 2018

Have you correctly configured the SITEURL?

https://github.com/GeoNode/geonode/blob/2.8.0/geonode/settings.py#L632

Il giorno ven 8 giu 2018 alle ore 22:26 Julierme Pinheiro <
juliermeopensourcedeveloper at gmail.com> ha scritto:

> Dear Toni Schonbuchner and GeoNode developers,
>
> First of all, my apologies to bring this topic back to discussion. I had
> already started with Toni, as shown in the message bellow.
>
> I am digging into GeoNode scripts architecture trying to find an issue
> related to the creation of thumbnails. Let me introduce to you what I have
> done so far.
>
>
> I have GeoNode at 2.8.0. installed in a virtualenv according to
> http://docs.geonode.org/en/master/tutorials/install_and_admin/geonode_install/index.html.
> The thumbnails created by loading data from GeoNode interface do not work
> at all.
>
> They are displayed if and only if I upload the layers from GeoServer
> interface and in a next step, run python manage.py updatelayers. It is very
> interesting what happens here: after running updatelayers, if I go to
> GeoNode interface, I see the thumbnail perfectly fine, but doing a right
> click over it and copy image location, the response is an OWS url as I am
> showing bellow. However If a make a request to the database,
> get_thumbnail_url, the response is a http://localhost:8000/. Why port
> 8000? Sorry to use this expression, this port 8000 is a nightmare, and I am
> digging deep trying to find its source.
>
> If I remove port 8000, the thumbnails work like a charm in port 80.
>
> After following all Toni's recommendations [1] [2] and [3] (please, see
> the message right in the bottom of this e-mail), I could not find port 8000
> source. It is in somewhere, and I will keep looking for its source in
> GeoNode scripts.
>
> A brilliant idea came out. Let's compare GeoNode at 2.8.0 stable installed
> via apt-get with GeoNode at 2.8.0 installed from source in a python
> virtualenv. I am going through GeoServer data path,  settings.py and
> local_settings.py, [1], helpers.py [2], and signals.py[3]. I am not sure
> that is a brilliant idea to find port 8000, my nightmare, but I found
> another issue in respect to GeoNode apt-get. This issue tells me that port
> 8000 is not the only one, there is another problem related to thumbnails
> that occurs either in GeoNode at 2.8.0 installed from source  and
> GeoNode at 2.8.0 installed via apt-get when updating thumbnails in GeoNode
> interface and I am showing it bellow:
>
>
> *GeoNode installed from source in a virtualenv*
>
> *Thumbnail created by loading data from GeoNode Interface*
>
> *Does not work at all*
>
> $ sudo geonode shell
>
> >>> from geonode.layers.models import Layer
> >>> layer = Layer.objects.all()
> >>> for tn in layer:
> ...     print tn.get_thumbnail_url()
> ...
>
> http://localhost:8000/uploaded/thumbs/layer-d3b7e06c-6b4a-11e8-a4cc-0800277e2fd3-thumb.png
>
> *NOTE:* The nightmare is here: port 8000. Why? I have set
> geoserver_location and geoserver_public_ location to port 8080. And there
> is proxy reverse in geonode.conf to port 80.
>
>
> *Thumbnail created by loading data from GeoServer Interface*
>
> *Does not work at all *
>
> >>> from geonode.layers.models import Layer
> >>> layer = Layer.objects.all()
> >>> for tn in layer:
> ...     print tn.get_thumbnail_url()
> ...
>
> http://localhost:8000/uploaded/thumbs/layer-cfe8a292-80d4-4c59-bff5-2c2245f15caf-thumb.png
> <http://localhost/uploaded/thumbs/layer-2524c8db-726e-4050-9689-055dc0bb9aaa-thumb.png>
>
> *NOTE:*The nightmare is here: port 8000. Why? I have set
> geoserver_location and geoserver_public_ location to port 8080. And there
> is proxy reverse in geonode.conf to port 80.
>
>
> <http://localhost/uploaded/thumbs/layer-2524c8db-726e-4050-9689-055dc0bb9aaa-thumb.png>
> *HOWEVER: *after running updatelayers for the first time without updating
> the thumbnail, there is a light at the end of the tunnel.
>
> *Thumbnails are displayed. *
>
> *Right Click over thumbnail --> Copy image Location*
>
> A OWS url appears
> *:*
>
>
> http://localhost:8080/geoserver/ows?layers=geonode:GPS&crs=EPSG:4326&service=WMS&format=image/png8&request=GetMap&height=150&width=200&version=1.1.1&bbox=-69.935496180600000,-29.789445458300000,-35.777101013900000,0.047035064700000
>
> Why these urls patterns are different? One uses GeoServer, but the other
> do not.
>
>
> *Now, let's edit this layer (zoom in / zoom out) and Set Thumbnails *
>
> *Layer --> Edit Layer --> Zoom in or Zoom out --> Set Thumbnails*
>
> Thumbnails url (
> http://localhost/uploaded/thumbs/layer-2524c8db-726e-4050-9689-055dc0bb9aaa-thumb.png)
> does not work properly.
>
> *Error message:*
> The image '
> http://localhost/uploaded/thumbs/layer-2524c8db-726e-4050-9689-055dc0bb9aaa-thumb.png'
> cannot be displayed because it contains errors.
>
>
> *CONCLUSION GEONODE INSTALLED BY SOURCE:* There are two issues: *port
> 8000* and *thumbnails update.*
>
>
> *GEONODE INSTALLED VIA APT-GET *
>
>
> Thumbnail created by loading data from GeoNode Interface
>
> *Works like a charm *
>
> $ sudo geonode shell
>
> >>> from geonode.layers.models import Layer
> >>> layer = Layer.objects.all()
> >>> for tn in layer:
> ...     print tn.get_thumbnail_url()
> ...
>
> http://localhost/uploaded/thumbs/layer-f519c8d4-6b35-11e8-90e2-080027ac8c10-thumb.png
>
> *Now, let's edit this layer (zoom in / zoom out) and Set Thumbnail*
>
> *Layer --> Edit Layer --> Zoom in or Zoom out --> Set Thumbnails*
>
> Thumbnail url (
> http://localhost/uploaded/thumbs/layer-a7c6035e-6b49-11e8-90e2-080027ac8c10-thumb.png)
> does not work properly.
>
> *Error message:*
> The image '
> http://localhost/uploaded/thumbs/layer-a7c6035e-6b49-11e8-90e2-080027ac8c10-thumb.png'
> cannot be displayed because it contains errors.
>
>
> *Thumbnail created by loading data from GeoServer Interface*
>
> Works like a charm
>
> >>> from geonode.layers.models import Layer
> >>> layer = Layer.objects.all()
> >>> for tn in layer:
> ...     print tn.get_thumbnail_url()
> ...
>
> http://localhost/uploaded/thumbs/layer-2524c8db-726e-4050-9689-055dc0bb9aaa-thumb.png
>
> *Right Click over thumbnail blank image --> Copy image Location*
>
>
> http://localhost/geoserver/ows?layers=geonode:RBMC&crs=EPSG:4326&service=WMS&format=image/png8&request=GetMap&height=150&width=200&version=1.1.1&bbox=-64.706650088900000,-31.802449444400000,-35.777101013900000,0.047035064700000
>
> *Now, let's edit this layer (zoom in / zoom out) and Set Thumbnails *
>
> *Layer --> Edit Layer --> Zoom in or Zoom out --> Set Thumbnails*
>
> Thumbnails url (
> http://localhost/uploaded/thumbs/layer-2524c8db-726e-4050-9689-055dc0bb9aaa-thumb.png)
> does not work properly.
>
> *Error message:*
> The image '
> http://localhost/uploaded/thumbs/layer-2524c8db-726e-4050-9689-055dc0bb9aaa-thumb.png'
> cannot be displayed because it contains errors.
>
> *CONCLUSION GEONODE INSTALLED VIA APT-GET:* There is only one issue: *Thumbnails
> update.*
>
> As I said above, I do not know if it is a good idea, but I will keep
> comparing [1] [2] and [3] in GeoNode apt-get and GeoNode virtualenv in
> order to find port 8000 source. However the issue related to updating
> GeoNode thumbnails  I have no clue.
>
>
> Sorry for this long e-mail. Thank you for your time in advance. I
> appreciated your help and attention.
>
>
> Dear Julierme,
>
> I think  using grep does not really help to get insights.
> Why not look at the code? The geoserver URL is composed
> in settings.py [1]. I think here you will find your 8000.
>
> Next I think the best way to see what´s going on is to have
> a look at the helpers.py [2]. Here you should find the code which
> is responsible for creating thumbnails and here [3] the signal
> which you see in stdout logging. If there is some time I will
> do a dev installation and will test it as well.
>
> Further you´ve asked if there is something like geonode-updateip
> for an installation by source? Not that I know of but yes it would be
> helpful.
> But it should not be to hard to write a little script which does the job.
> Have a look what geonode-updateip actually does [4] it programatically
> changes
> the parts which the documentation [5] explains regarding auth.
>
> I hope this helps a bit.
> Best greetings to Brasilia!
>
> Toni
>
>
> [1] https://github.com/GeoNode/geonode/blob/2.8.0/geonode/settings.py#L650
> [2]
> https://github.com/GeoNode/geonode/blob/master/geonode/geoserver/helpers.py#L1730
> [3]
> https://github.com/GeoNode/geonode/blob/df12893ced001973bd748f86d08fa6ae4c10dde9/geonode/geoserver/signals.py#L497
> [4]
> https://github.com/GeoNode/geonode/blob/df12893ced001973bd748f86d08fa6ae4c10dde9/package/support/geonode.updateip#L126
> [5]
> http://docs.geonode.org/en/master/tutorials/install_and_admin/geonode_install/install_geoserver_application.html#geonode-authentication-integration
>
>
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>

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