File picking from WEBDAV may return HTTP 503

[TomasKulhanek]

Reproduced issue with HTTP 503 on testing VM. The mod_proxy redirects the request via secured authenticated channel to b2drop while on the other hand it returns HTTP 503.

The HTTP 503 is returned by EUDAT server. Reported to EUDAT team.

[TomasKulhanek]

not reproduced anymore

[TomasKulhanek]

“HTTP 504 Gateway Time-out” is returned when trying to download this file from generated webdav https://portal.west-life.eu/webdav/eyxxxxxxxxxxxxxxxxxxx/Falcon_2012_06_12-16_55_40_0_movie.mrcs is proxied to /webdav/[email protected]/B2drop/Documents/Falcon_2012_06_12-16_55_40_0_movie.mrcs which seems to be handled by VF correctly.
VF log (var/log/httpd/access_log): gateway - - [13/Dec/2017:12:37:33 +0000] "GET /webdav/[email protected]/B2drop/Documents/Falcon_2012_06_12-16_55_40_0_movie.mrcs HTTP/1.1" 200 243361024 "-" "python-requests/2.10.0"

HTTP 500 is returned when trying to download this 18MB file:
https://portal.west-life.eu/webdav/eyxxxxxxxxxxxxxxxx/cernvm4-micro-2.7-7.hdd
VF log: gateway - - [13/Dec/2017:13:58:07 +0000] "GET /webdav/[email protected]/b2drop_2/west-life/cernvm4-micro-2.7-7.hdd HTTP/1.1" 200 25231360 "-" "python-requests/2.10.0"

Downloading small files seems to be working:
https://portal.west-life.eu/webdav/eyxxxxxxxxxxx/uploadtext.txt

[TomasKulhanek]

Enabling B2DROP proxy instead of using mod_dav on mounted file seems fix the issue.
But it may cause some other issues which we saw last year in B2DROP.