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authorPranith Kumar K <pranithk@gluster.com>2012-07-25 09:56:58 +0530
committerAnand Avati <avati@redhat.com>2012-07-25 15:02:39 -0700
commit75ee490213b7f7673970ef80dee3bcc567848c26 (patch)
treeae3680385a4fec07cd8b6bb5f1551cbfb6c91c9b /xlators/cluster/afr/src/afr-self-heal-data.c
parent787d52d8e8bf415e48fa41ff9c7fef4693804903 (diff)
cluster/afr: Perform data self-heal for non regular files
RCA: Data self-heal for non regular files open the files and then proceeds using that fd. This approach does not work for symlinks because open on symlink opens the file resolved by it. Fix: If the file is not a regular file then perform self-heal using loc. It needs to get 'big' lock and then perform lookup to get changelog then erase data part of chagelog, then unlock. Test cases: Automated at https://github.com/pranithk/gluster-tests/blob/master/afr/special-file-self-heal-test.sh Change-Id: I924a922f5135872efe2cccf2e712ada082c5689f BUG: 811317 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.com/3724 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/cluster/afr/src/afr-self-heal-data.c')
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-data.c146
1 files changed, 60 insertions, 86 deletions
diff --git a/xlators/cluster/afr/src/afr-self-heal-data.c b/xlators/cluster/afr/src/afr-self-heal-data.c
index 2edee5fd460..1672b4f282e 100644
--- a/xlators/cluster/afr/src/afr-self-heal-data.c
+++ b/xlators/cluster/afr/src/afr-self-heal-data.c
@@ -121,6 +121,11 @@ afr_sh_data_close (call_frame_t *frame, xlator_t *this)
sh = &local->self_heal;
priv = this->private;
+ if (!sh->healing_fd) {
+ //This happens when file is non-reg
+ afr_sh_data_done (frame, this);
+ return 0;
+ }
call_count = afr_set_elem_count_get (sh->success,
priv->child_count);
local->call_count = call_count;
@@ -395,66 +400,9 @@ out:
int
afr_sh_data_erase_pending (call_frame_t *frame, xlator_t *this)
{
- afr_local_t *local = NULL;
- afr_self_heal_t *sh = NULL;
- afr_private_t *priv = NULL;
- int call_count = 0;
- int i = 0;
- dict_t **erase_xattr = NULL;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- afr_sh_pending_to_delta (priv, sh->xattr, sh->delta_matrix, sh->success,
- priv->child_count, AFR_DATA_TRANSACTION);
- gf_log (this->name, GF_LOG_DEBUG, "Delta matrix for: %s",
- lkowner_utoa (&frame->root->lk_owner));
- afr_sh_print_pending_matrix (sh->delta_matrix, this);
-
- erase_xattr = GF_CALLOC (sizeof (*erase_xattr), priv->child_count,
- gf_afr_mt_dict_t);
-
- for (i = 0; i < priv->child_count; i++) {
- if (sh->xattr[i]) {
- call_count++;
-
- erase_xattr[i] = get_new_dict();
- dict_ref (erase_xattr[i]);
- }
- }
-
- afr_sh_delta_to_xattr (this, sh->delta_matrix, erase_xattr,
- priv->child_count, AFR_DATA_TRANSACTION);
-
- GF_ASSERT (call_count);
- local->call_count = call_count;
- for (i = 0; i < priv->child_count; i++) {
- if (!erase_xattr[i])
- continue;
-
- gf_log (this->name, GF_LOG_DEBUG,
- "erasing pending flags from %s on %s",
- local->loc.path, priv->children[i]->name);
-
- STACK_WIND_COOKIE (frame, afr_sh_data_erase_pending_cbk,
- (void *) (long) i,
- priv->children[i],
- priv->children[i]->fops->fxattrop,
- sh->healing_fd,
- GF_XATTROP_ADD_ARRAY, erase_xattr[i],
- NULL);
- if (!--call_count)
- break;
- }
-
- for (i = 0; i < priv->child_count; i++) {
- if (erase_xattr[i]) {
- dict_unref (erase_xattr[i]);
- }
- }
- GF_FREE (erase_xattr);
-
+ afr_sh_erase_pending (frame, this, AFR_DATA_TRANSACTION,
+ afr_sh_data_erase_pending_cbk,
+ afr_sh_data_finish);
return 0;
}
@@ -868,27 +816,6 @@ out:
}
int
-afr_sh_data_special_file_fix (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_self_heal_t *sh = NULL;
- afr_local_t *local = NULL;
- int i = 0;
-
- local = frame->local;
- sh = &local->self_heal;
- priv = this->private;
-
- for (i = 0; i < priv->child_count ; i++)
- if (1 == local->child_up[i])
- sh->success[i] = 1;
-
- afr_sh_data_erase_pending (frame, this);
-
- return 0;
-}
-
-int
afr_sh_data_fstat_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
struct iatt *buf, dict_t *xdata)
@@ -938,10 +865,7 @@ afr_sh_data_fstat_cbk (call_frame_t *frame, void *cookie,
afr_sh_data_fail (frame, this);
goto out;
}
- if (IA_ISREG (sh->type))
- afr_sh_data_fxattrop_fstat_done (frame, this);
- else
- afr_sh_data_special_file_fix (frame, this);
+ afr_sh_data_fxattrop_fstat_done (frame, this);
}
out:
return 0;
@@ -1382,6 +1306,50 @@ afr_sh_data_open (call_frame_t *frame, xlator_t *this)
return 0;
}
+void
+afr_sh_non_reg_fix (call_frame_t *frame, xlator_t *this,
+ int32_t op_ret, int32_t op_errno)
+{
+ afr_private_t *priv = NULL;
+ afr_self_heal_t *sh = NULL;
+ afr_local_t *local = NULL;
+ int i = 0;
+
+ if (op_ret < 0) {
+ afr_sh_data_fail (frame, this);
+ return;
+ }
+
+ local = frame->local;
+ sh = &local->self_heal;
+ priv = this->private;
+
+ for (i = 0; i < priv->child_count ; i++) {
+ if (1 == local->child_up[i])
+ sh->success[i] = 1;
+ }
+
+ afr_sh_erase_pending (frame, this, AFR_DATA_TRANSACTION,
+ afr_sh_data_erase_pending_cbk,
+ afr_sh_data_finish);
+}
+
+int
+afr_sh_non_reg_lock_success (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_self_heal_t *sh = NULL;
+
+ local = frame->local;
+ sh = &local->self_heal;
+ sh->data_lock_held = _gf_true;
+ afr_sh_common_lookup (frame, this, &local->loc,
+ afr_sh_non_reg_fix, NULL,
+ AFR_LOOKUP_FAIL_CONFLICTS |
+ AFR_LOOKUP_FAIL_MISSING_GFIDS,
+ NULL);
+ return 0;
+}
int
afr_self_heal_data (call_frame_t *frame, xlator_t *this)
@@ -1397,7 +1365,13 @@ afr_self_heal_data (call_frame_t *frame, xlator_t *this)
if (sh->do_data_self_heal &&
afr_data_self_heal_enabled (priv->data_self_heal)) {
- afr_sh_data_open (frame, this);
+ if (IA_ISREG (sh->type)) {
+ afr_sh_data_open (frame, this);
+ } else {
+ afr_sh_data_lock (frame, this, 0, 0,
+ afr_sh_non_reg_lock_success,
+ afr_sh_data_fail);
+ }
} else {
gf_log (this->name, GF_LOG_TRACE,
"not doing data self heal on %s",