xrootd.chksum script is not working for WebDAVs protocol on xrootd 5.5.2

[geonmo]

Hello, XRootD Developers,

Our site (T3_KR_KISTI) uses xrootd to support the WebDAVs protocol.

Since our backend storage is NFS storage, we configured the adler 32 checksum to be returned through a user script using the xrootd.chksum keyword to support checksum.

xrootd.chksum max 60000 adler32 /opt/checksum/adler.py

Since the recent xrootd 5.5.2 version upgrade, we have confirmed that the feature is not working well for webdavs.

The test command is:

gfal-sum -vvv -D "HTTP PLUGIN:RETRIEVE_BEARER_TOKEN=false" -t 90 davs://cms-se.sdfarm.kr:1094/xrd/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/CE860B10-5D76-E711-BCA8-FA163EAA761A.root ADLER32

The error message is

gfal-sum error: 38 (Function not implemented) - [gfal2_checksum][gfal_http_checksum] checksum calculation for ADLER32 not supported for davs://cms-se.sdfarm.kr:1094/xrd/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/CE860B10-5D76-E711-BCA8-FA163EAA761A.root

When we tested with the root protocol, we were able to check the value normally.

When a checksum is requested by webdavs, it has been confirmed that the script works.

I think the related settings may have been changed, so I would like you to let me know about the related settings.

[abh3]

Hello Geonmo, Indeed, you are not the first person to report this. There was a bug in the way we treated scripts that computed the checksum (as opposed to doing so natively) that returned a response gfal did not like. This will be corrected in 5.5.3 which is coming soon. So, you should stay with 5.5.1 or earlier for now. Andrew

…

On Mon, 13 Feb 2023, Geonmo Ryu wrote: Hello, XRootD Developers, Our site (T3_KR_KISTI) uses xrootd to support the WebDAVs protocol. Since our backend storage is NFS storage, we configured the adler 32 checksum to be returned through a user script using the xrootd.chksum keyword to support checksum. ``` xrootd.chksum max 60000 adler32 /opt/checksum/adler.py ``` Since the recent xrootd 5.5.2 version upgrade, we have confirmed that the feature is not working well for webdavs. The test command is: ```bash gfal-sum -vvv -D "HTTP PLUGIN:RETRIEVE_BEARER_TOKEN=false" -t 90 davs://cms-se.sdfarm.kr:1094/xrd/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/CE860B10-5D76-E711-BCA8-FA163EAA761A.root ADLER32 ``` The error message is ```bash gfal-sum error: 38 (Function not implemented) - [gfal2_checksum][gfal_http_checksum] checksum calculation for ADLER32 not supported for davs://cms-se.sdfarm.kr:1094/xrd/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/CE860B10-5D76-E711-BCA8-FA163EAA761A.root ``` When we tested with the root protocol, we were able to check the value normally. When a checksum is requested by webdavs, it has been confirmed that the script works. I think the related settings may have been changed, so I would like you to let me know about the related settings. -- Reply to this email directly or view it on GitHub: #1905 You are receiving this because you are subscribed to this thread. Message ID: ***@***.***>

[geonmo]

@abh3 Thanks for your answer. I will close this issue.