diff options
| author | Susant Palai <spalai@redhat.com> | 2019-12-27 12:06:19 +0530 |
|---|---|---|
| committer | Amar Tumballi <amar@kadalu.io> | 2020-02-09 02:51:31 +0000 |
| commit | c87817495b3c5c36dcca9d157e9313b7d3195eed (patch) | |
| tree | 45d7937077f34afc4c05f8cf752f0df19bef70ba /xlators/storage/posix/src/posix.h | |
| parent | 8fad76650bd85463708f59d2518f5b764ae4c702 (diff) | |
dht: Fix stale-layout and create issue
Problem: With lookup-optimize set to on by default, a client with
stale-layout can create a new file on a wrong subvol. This will lead to
possible duplicate files if two different clients attempt to create the
same file with two different layouts.
Solution: Send in-memory layout to be cross checked at posix before
commiting a "create". In case of a mismatch, sync the client layout with
that of the server and attempt the create fop one more time.
test: Manual, testcase(attached)
fixes: bz#1786679
Change-Id: Ife0941f105113f1c572f4363cbcee65e0dd9bd6a
Signed-off-by: Susant Palai <spalai@redhat.com>
Diffstat (limited to 'xlators/storage/posix/src/posix.h')
| -rw-r--r-- | xlators/storage/posix/src/posix.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h index ce4e1193639..7893a9b3e35 100644 --- a/xlators/storage/posix/src/posix.h +++ b/xlators/storage/posix/src/posix.h @@ -658,4 +658,8 @@ posix_spawn_ctx_janitor_thread(xlator_t *this); void posix_update_iatt_buf(struct iatt *buf, int fd, char *loc, dict_t *xdata); + +gf_boolean_t +posix_is_layout_stale(dict_t *xdata, char *par_path, xlator_t *this); + #endif /* _POSIX_H */ |