diff options
| author | Pranith Kumar K <pkarampu@redhat.com> | 2017-09-04 16:57:25 +0530 |
|---|---|---|
| committer | jiffin tony Thottan <jthottan@redhat.com> | 2018-03-08 06:39:57 +0000 |
| commit | e304d218602f3099dc4ba9bb86fd953cee8a8e59 (patch) | |
| tree | 24fc0ac1a189952ee003ea54156a24f794fc606e /xlators/cluster/afr/src/afr-self-heal-common.c | |
| parent | afcb83f6eb11bc5b7a0e6c5c0b7c8f56af871840 (diff) | |
cluster/afr: Fail open on split-brain
Problem:
Append on a file with split-brain succeeds. Open is intercepted by open-behind,
when write comes on the file, open-behind does open+write. Open succeeds
because afr doesn't fail it. Then write succeeds because write-behind
intercepts it. Flush is also intercepted by write-behind, so the application
never gets to know that the write failed.
Fix:
Fail open on split-brain, so that when open-behind does open+write open fails
which leads to write failure. Application will know about this failure.
Change-Id: I4bff1c747c97bb2925d6987f4ced5f1ce75dbc15
BUG: 1544635
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
(cherry picked from commit 786343abca3474ff01aa1017210112d97cbc4843)
Diffstat (limited to 'xlators/cluster/afr/src/afr-self-heal-common.c')
| -rw-r--r-- | xlators/cluster/afr/src/afr-self-heal-common.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/xlators/cluster/afr/src/afr-self-heal-common.c b/xlators/cluster/afr/src/afr-self-heal-common.c index 20e81dd43e0..26d3860b234 100644 --- a/xlators/cluster/afr/src/afr-self-heal-common.c +++ b/xlators/cluster/afr/src/afr-self-heal-common.c @@ -66,9 +66,9 @@ afr_lookup_and_heal_gfid (xlator_t *this, inode_t *parent, const char *name, goto out; } - frame = afr_frame_create (this); + frame = afr_frame_create (this, &ret); if (!frame) { - ret = -ENOMEM; + ret = -ret; goto out; } @@ -2349,18 +2349,17 @@ afr_inode_find (xlator_t *this, uuid_t gfid) call_frame_t * -afr_frame_create (xlator_t *this) +afr_frame_create (xlator_t *this, int32_t *op_errno) { call_frame_t *frame = NULL; afr_local_t *local = NULL; - int op_errno = 0; pid_t pid = GF_CLIENT_PID_SELF_HEALD; frame = create_frame (this, this->ctx->pool); if (!frame) return NULL; - local = AFR_FRAME_INIT (frame, op_errno); + local = AFR_FRAME_INIT (frame, (*op_errno)); if (!local) { STACK_DESTROY (frame->root); return NULL; @@ -2490,7 +2489,7 @@ afr_selfheal (xlator_t *this, uuid_t gfid) call_frame_t *frame = NULL; afr_local_t *local = NULL; - frame = afr_frame_create (this); + frame = afr_frame_create (this, NULL); if (!frame) return ret; |