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

Tue Jun 12 09:49:29 PDT 2018

I suppose that Julierme is following this tutorial:

http://docs.geonode.org/en/master/tutorials/install_and_admin/geonode_install/install_geoserver_application.html

( in fact, I also did and got exactly the same error). In that tutorial all
the URLs related to localhost in the last two steps/pages are set to "
http://localhost".

Regards

Jesús de Diego

2018-06-12 17:20 GMT+02:00 Alessio Fabiani <alessio.fabiani at geo-solutions.it
>:

> 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
>>
>>
>> _______________________________________________
>> geonode-users mailing list
>> geonode-users at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/geonode-users
>>
>
>
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>
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-- 
Jesús de Diego Alarcón
jesdial at gmail.com

"La vida es linda, lo malo es que muchos confunden lindo con fácil."
Mafalda
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