Temporary space not left after not enought space error

[Niarolf]

Description

When we have not enought space in the apache temp filesystem, the temporary files are not deleted.

Context

Qgis server is using with apache2 and fcgi.
The plugin variable debug is with the false value
When we call the plugin for a large file, send with a SHP outputFormat for example, the plugin create a gml file, then he converts this one in shp and finally in a zip file.
All theses files are deleted when no error and the final file is send, but when an error is occuring, the plugin stop, send a partial file and don't delete the temporary files.
We must delete manually.

• QGIS Server FULL version (with 3 numbers) :
  Qgis Server 3.16.4

• OS on the server :
  Debian 10.8

[Gustry]

Do you have the Python error which occurred ?

[Niarolf]

@Gustry
Voici un extrait de l'erreur que j'ai dans le log qui semble être lié à OGR :
11:21:04 WARNING OGR[58278]: Feature creation error (OGR error: Error in psSHP->sHooks.FWrite() while writing object of 21992 bytes to .shp file: Aucun espace disponible sur le périphérique)
11:21:04 WARNING OGR[58278]: Feature creation error (OGR error: Error in psSHP->sHooks.FWrite() while writing object of 16200 bytes to .shp file: Aucun espace disponible sur le périphérique)
11:21:04 CRITICAL WfsOutputExtension[58278]: Feature write errors:
Feature creation error (OGR error: Error in psSHP->sHooks.FWrite() while writing object of 63592 bytes to .shp file: Aucun espace disponible sur le périphérique)
Feature creation error (OGR error: Error in psSHP->sHooks.FWrite() while writing object of 8520 bytes to .shp file: Aucun espace disponible sur le périphérique)
Feature creation error (OGR error: Error in psSHP->sHooks.FWrite() while writing object of 68408 bytes to .shp file: Aucun espace disponible sur le périphérique)

Le fichier renvoyé au client est vide :

Voici des informations avec le mode debug du plugin mais qui ne semble pas apporter d'autres éléments :
Feature creation error (OGR error: Error in psSHP->sHooks.FWrite() while writing object of 16104 bytes to .shp file: Aucun espace disponible sur le périphérique)Stopping after 1001 errors
11:29:09 INFO WfsOutputExtension[60299]: send_output_file ran in 105.1s
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/gml_features_1646907869.384948.gfs
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/to-shp-mwLZSE.dbf
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/to-shp-mwLZSE.shp
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/to-shp-mwLZSE.cpg
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/gml_features_1646907869.384948.gml
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/to-shp-mwLZSE.shx
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/to-shp-mwLZSE.qpj
11:29:09 INFO WfsOutputExtension[60299]: DEBUG_WFSOUTPUTEXTENSION is on, not removing /tmp/QGIS_WfsOutputExtension/to-shp-mwLZSE.prj
11:29:09 INFO WfsOutputExtension[60299]: responseComplete ran in 105.1s
11:29:09 INFO Server[60299]: Request finished in 280528 ms

[Gustry]

Please try the next version, files should always be removed in case of an exception.