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Hi Lincoln,

Now that I have read the original email more closely, I think you can 
ignore the problem. Notice that the redirector says the file is "pending". 
That means it made a commitment to place the file on the server. Future 
access to the file will vector the client to that server and the cache 
should clean up it's act. Since the file doesn't exist (yet) you get the 
error that it cannot be removed (because it can't). I'd suggest trying to 
read it and see what happens.

Andy


On Tue, 7 Sep 2021, Lincoln Bryant wrote:

> Hi Andy,
>
> This was first noticed with an xrootd-fuse client:
> # ls /atlas/uct3/data/users/jano/qual/matched/truth
> ls: cannot access /atlas/uct3/data/users/jano/qual/matched/truth/ntuple_0.root: No such file or directory
> ntuple_0.root
> # rpm -q xrootd-fuse
> xrootd-fuse-5.3.1-1.el7.x86_64
>
> Then I also tried with the 'xrdfs' tool:
> # xrdfs root://uct3-xrd.mwt2.org:1094 ls /atlas/uct3/data/users/jano/qual/matched/truth/ntuple_0.root
> [ERROR] Server responded with an error: [3011] No servers have read access to the file
> # rpm -q xrootd-client
> xrootd-client-5.3.1-1.el7.x86_64
>
> I have tried the same clients on different hosts, which report the same problem.
>
> I have tried restarting the cmsd/xrootd on all 3 servers and the redirector. File is still in the same state.
>
> Advice on how to proceed?
>
> Thanks much,
> Lincoln
> ________________________________
> From: Andrew Hanushevsky <[log in to unmask]>
> Sent: Tuesday, September 7, 2021 1:03 PM
> To: Yang, Wei <[log in to unmask]>
> Cc: Lincoln Bryant <[log in to unmask]>; [log in to unmask] <[log in to unmask]>
> Subject: Re: Can't remove missing file
>
> For an xroot client, when this occurs, the client automatically asks the
> redirector to correct the cache. So, this should not be an issue. On the
> other hand, http has no such protocol so the rror persists until the cache
> times out. So, what client was getting this error?
>
> On Tue, 7 Sep 2021, Yang, Wei wrote:
>
>> Hi Lincoln,
>>
>> Xrootd?s redirector will cache the info of this file for 8 hours (I think it can be shortened). So the ghost will disappear after that time. Alternatively you can restart the redirector.
>>
>> I don?t know if there is a way to tell the redirector to refresh the cache (or cache of this particular entry).
>>
>> regards,
>> --
>> Wei Yang  |  [log in to unmask]<mailto:[log in to unmask]>  |  650-926-3338(O)
>>
>>
>>
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