4bb78de611
Previously, when a diskfile was relinked in a new partition, the diskfile.relink_paths() would test for the existence of the link before attempting to create it. This 'test then set' might race with another process creating the same diskfile (e.g. a concurrent PUT which created the very same object in an old partition that the relinker is also relinking). The race might lead to an attempt to create a link that already exists (despite the pre-check) and an EEXIST exception being raised. This patch modifies relink_paths to tolerate EEXIST exceptions but only if the existing file is a link to the target file. Otherwise the EEXIST exception is still raised. The 'check_existing' argument for relink_paths is removed since it is no longer relevant. relink_paths() might also raise an ENOENT exception if, while a diskfile is being relinked in the 'new' partition dir, another process PUTs a newer version of the same object and as a result cleans up the older diskfile in the 'old' partition before the first process has called os.link(). This patch modifies relink_paths() to tolerate ENOENT exceptions from os.link() but only if the target path (i.e. the file in the 'old' partition) no longer exists. Otherwise the ENOENT will still be raised. This patch also modifies relink_paths() to return a boolean indicating if the hard link was created by the call to the method (True) or not (False). Closes-Bug: 1917658 Change-Id: I65d4b83c56699ed566fbfb7068f9d2681ca67aa3 |
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| .. | ||
| account | ||
| cli | ||
| common | ||
| container | ||
| locale | ||
| obj | ||
| proxy | ||
| __init__.py | ||