Re: [Qgis-developer] working with qgis and pgadmin/psql...
Am 10.04.2014 07:58, schrieb Paolo Cavallini: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Il 09/04/2014 20:45, Giovanni Manghi ha scritto: What versions are affected - dev / 2.2 / both? I think both, for sure on master. It's a long standing problem, present since I can remember. Me, too. This problem is present as far as I use QGIS together with PostGIS (QGIS 1.5 maybe). As far as I can remember only DDL statements (e.g. ALTER TABLE) are affected, whereas e.g. SELECT works as expected. However I do not remember running into this in the last couple of months but this was maybe just luck :) What has to be investigated, too, is if it happens with the same db user (role) accessing a table through QGIS and pgadmin. Background is I have dozens of db roles accessing the db with QGIS and as said above did not run into this problem recently when administrating the db with pgadmin. Anybody has an idea what the reason is? Does QGIS lock a table so it cannot be altered? Bernhard it happens that pgadmin/psql operations remain freezed, then when closing qgis they immediately start and finish as expected. confirmed. thanks. - -- Paolo Cavallini - www.faunalia.eu Corsi QGIS e PostGIS: http://www.faunalia.eu/training.html -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlNGMwoACgkQ/NedwLUzIr48IACeKi0zj6R1iMIo+8JzQa4MAQEu NYsAoIEZtgt9Q1skPwfSJk5dtfgRd5xA =ubt+ -END PGP SIGNATURE- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer __ Information from ESET Security, version of virus signature database 9658 (20140410) __ The message was checked by ESET Security. part000.txt - is OK http://www.eset.com __ Information from ESET Security, version of virus signature database 9658 (20140410) __ The message was checked by ESET Security. part000.txt - is OK http://www.eset.com ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
On 10/04/2014 4:21 pm, Bernhard Ströbl bernhard.stro...@jena.de wrote: . Anybody has an idea what the reason is? Does QGIS lock a table so it cannot be altered? Yes - here's some more info/bug reports: http://hub.qgis.org/issues/7679 http://osgeo-org.1560.x6.nabble.com/Issue-with-standalone-python-script-and-PostGIS-Layers-td5098329.html http://hub.qgis.org/issues/9357 Nyall ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
Hi Nyall, Am 10.04.2014 08:59, schrieb Nyall Dawson: On 10/04/2014 4:21 pm, Bernhard Ströbl bernhard.stro...@jena.de mailto:bernhard.stro...@jena.de wrote: . Anybody has an idea what the reason is? Does QGIS lock a table so it cannot be altered? Yes - here's some more info/bug reports: http://hub.qgis.org/issues/7679 I remember this problem and have been looking into it some 2 years ago (estimated). My conclusion then was (if I remember correctly) that the psycopg2 transaction is not commited and thus locks the relation. (Closing DB manager closes the connection and thus terminates all transactions). Maybe setting the connection to autocommit solves this issue? I did not care any further because I do not use DB manager (but pgAdmin) for two reasons: 1) the named problem (it locks tables) 2) the need to install psycopg2 on all my clients' computers (IMHO a db plugin for QGIS should use QtSql because one can assume that it is installed). but this Problem is (as far as I understand) not related to the problem described in the OP: tables are locked because they are loaded as layers into QGIS Benhard http://osgeo-org.1560.x6.nabble.com/Issue-with-standalone-python-script-and-PostGIS-Layers-td5098329.html http://hub.qgis.org/issues/9357 Nyall __ Information from ESET Security, version of virus signature database 9658 (20140410) __ The message was checked by ESET Security. part000.txt - is OK http://www.eset.com ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
Yes - here's some more info/bug reports: http://hub.qgis.org/issues/7679 http://osgeo-org.1560.x6.nabble.com/Issue-with-standalone-python-script-and-PostGIS-Layers-td5098329.html http://hub.qgis.org/issues/9357 I see now that in pgadmin - tools - server status there are a lot of locks after adding postgis layers in qgis and that they do disappear only when closing qgis itself. Pressing new project does not remove the locks. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
This was the problem I was having a few months ago before 2.2 was released. I would run queries and they would never disappear on the server. So eventually the queries would stop running as the number of connections reached 100. I only got around it by adding layers and specifying that the layer does not look for styles in the PostGIS database (the False at the end there). vlayer = QgsVectorLayer(uri.uri(), layerName, postgres, False) I don't know if it is related to the code that looks for styles in the database, and if doesn't find one it doesn't shut down the connection? James -Opprinnelig melding- Fra: qgis-developer-boun...@lists.osgeo.org [mailto:qgis-developer-boun...@lists.osgeo.org] På vegne av Giovanni Manghi Sendt: 10. april 2014 13:46 Til: qgis-developer@lists.osgeo.org Emne: Re: [Qgis-developer] working with qgis and pgadmin/psql... Yes - here's some more info/bug reports: http://hub.qgis.org/issues/7679 http://osgeo-org.1560.x6.nabble.com/Issue-with-standalone-python-scrip t-and-PostGIS-Layers-td5098329.html http://hub.qgis.org/issues/9357 I see now that in pgadmin - tools - server status there are a lot of locks after adding postgis layers in qgis and that they do disappear only when closing qgis itself. Pressing new project does not remove the locks. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] working with qgis and pgadmin/psql...
Hi all, while working with QGIS plus pgadmin and/or psql I often need to close DB Manager or even QGIS entirely in oder to be able to perform some operations with pgadmin/psql, even when QGIS is completely idle. Is there any way to avoid this? cheers -- Giovanni -- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Il 09/04/2014 18:03, Giovanni Manghi ha scritto: Hi all, while working with QGIS plus pgadmin and/or psql I often need to close DB Manager or even QGIS entirely in oder to be able to perform some operations with pgadmin/psql, even when QGIS is completely idle. confirmed, it's quite annoying. all the best. - -- Paolo Cavallini - www.faunalia.eu Corsi QGIS e PostGIS: http://www.faunalia.eu/training.html -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlNFcBIACgkQ/NedwLUzIr5ThACcCLozQr3jHJ4eMLWn7VRpZRVP Ko8An1h9Hr5/RwHvJ3puUcgoMvKonI4n =GbiQ -END PGP SIGNATURE- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
Hi Giovanni On Wed, Apr 9, 2014 at 6:03 PM, Giovanni Manghi giovanni.man...@faunalia.pt wrote: Hi all, while working with QGIS plus pgadmin and/or psql I often need to close DB Manager or even QGIS entirely in oder to be able to perform some operations with pgadmin/psql, even when QGIS is completely idle. Is there any way to avoid this? What versions are affected - dev / 2.2 / both? What happens with QGIS / DB manager open? Waiting indefinitely / crash / ... ? Maybe you are running out of available connections on the PostgreSQL server - increasing their number in server configuration may help. Cheers Martin ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
Hi Martin, thanks for the answer. What versions are affected - dev / 2.2 / both? I think both, for sure on master. What happens with QGIS / DB manager open? Waiting indefinitely / crash / ... ? it happens that pgadmin/psql operations remain freezed, then when closing qgis they immediately start and finish as expected. Maybe you are running out of available connections on the PostgreSQL server - increasing their number in server configuration may help. on my local machine, for local work (just one user connected, me) I have set postgresql.conf to accept max 100 connections, and still this issue. Should I put an higher value? cheers! -- G -- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] working with qgis and pgadmin/psql...
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Il 09/04/2014 20:45, Giovanni Manghi ha scritto: What versions are affected - dev / 2.2 / both? I think both, for sure on master. It's a long standing problem, present since I can remember. it happens that pgadmin/psql operations remain freezed, then when closing qgis they immediately start and finish as expected. confirmed. thanks. - -- Paolo Cavallini - www.faunalia.eu Corsi QGIS e PostGIS: http://www.faunalia.eu/training.html -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlNGMwoACgkQ/NedwLUzIr48IACeKi0zj6R1iMIo+8JzQa4MAQEu NYsAoIEZtgt9Q1skPwfSJk5dtfgRd5xA =ubt+ -END PGP SIGNATURE- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
