I'm implementing a translator and at the moment I'm trying to "cache" at the local node's disk the files read from other node.
When reading a file from a certain node, at the file open function it's added an extended metadata at the original file with info about where this file (or part of it) is copied, calling syncop_setxattr to the proper child to do it.
So, once open is done the readv comes and if this file was not already read/cached, at the readv_cbk (before stack unwind) I am trying to create a local file with the content got from the original node.
For that purpose, I am using syncop_create / setattr / write. But the syncop_create is always failing with Stale NFS file handle error.
I tried to copy the same gfid and pargfid of the loc_t used at open function (saved), it didn't work, tried to zero them, nothing... and manipulated all the variables used at the syncop_create call... but nothing worked to get a success return from syncop_create.
Is there some requirement to call syncop_create, or a good way to track the exact reason for this failure (I could see it's not even reaching the client_create() call through gdb)? I am using the code from the master branch of 1 week ago. Any comment is welcome.
Part of the log:
[2012-09-09 17:04:16.357875] I [gbfs_t.c:361:gbfs_open_cbk] 0-gbfs-test: entering gbfs_open_cbk function
[2012-09-09 17:04:16.358026] I [gbfs_t.c:169:gbfs_readv] 0-gbfs-test: entering gbfs_readv function
[2012-09-09 17:04:16.358156] I [gbfs_t.c:46:gbfs_readv_cbk] 0-gbfs-test: entering gbfs_readv_cbk function
[2012-09-09 17:04:16.358192] I [gbfs_t.c:132:gbfs_readv_cbk] 0-gbfs-test: failed to create /35a710dd on examplevol-client-0 (Stale NFS file handle)
Gustavo Bervian Brand
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