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Hi Fabio,
There is no way to flush (effectively delete) a file from the cache. We
have talked about providing such a feature but didn't have a use case for
it. Anyway, I assume you are logging into the Xcache server and physically
removing the files. As long as you do that when no one is using the file a
subsequent xrdcp should not hang. So, I suspect the timing was a bit off
or I don't understand the actual steps you were taking.
Andy
On Tue, 12 Apr 2022, Fabio Andrijauskas wrote:
> Hi Folks,
>
> I am improving the Xrootd cache monitoring on OSG, and I would like to
> check if the cache can provide a cached file and if the cache can fetch a
> file from the origin. To check the origin cache process, I want to delete a
> specific file on the cache and request this file on the client, in that way
> forcing the cache to fetch the origin file.
>
> I am deleting 4 files, two links, and two files related to this
> cached file. However, when I do that, the xrdcopy process hangs and
> timeout. So, I need to restart the cache to back to the regular operation.
>
> What is the right way to force the cache to fetch a file on the origin?
>
>
>
> *--Fábio Andrijauskas*
>
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