Hi Brian, Bockjoo,
While waiting for Andy to be back from vacation and answer this question, as a temporary workaround, one can provide a checksum script to the xrootd.chksum directive to handle checksum verification.
regards,
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Wei Yang | [log in to unmask] | 650-926-3338(O)
On 8/22/19, 9:08 PM, "[log in to unmask] on behalf of Bockelman, Brian" <[log in to unmask] on behalf of [log in to unmask]> wrote:
Hi all,
Bockjoo Kim (CC'd) at Florida utilizes the xrootd-multiuser plugin to allow Xrootd to change the thread-specific filesystem user when accessing their underlying Lustre filesystem.
This works well *except* when saving the results of checksum calculation to extended attributes; in that case, a permission denied is received. Looking at the code, it seems that the Linux setxattr function is called directly - as opposed to being managed by the OSS layer.
Is it possible to get xattrs to be handled by the OSS layer (and change XrdCks to use OSS)? That would allow a clean integration with Lustre at Florida.
Thanks,
Brian
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