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authorBarak Sason Rofman <sason922@gmail.com>2020-07-07 20:55:35 +0300
committerMOHIT AGRAWAL <moagrawa@redhat.com>2020-07-22 09:10:35 +0000
commit76017cf65433b7f42e6bfdc2eaddfc36685e2c61 (patch)
treec08ab654a8eab172faa64abb88f97e3a8593efd3 /xlators/cluster/dht/src
parent48e49df050682211a0b21a7a15827133dec57279 (diff)
dht - fixing xattr inconsistency
The scenario of setting an xattr to a dir, killing one of the bricks, removing the xattr, bringing back the brick results in xattr inconsistency - The downed brick will still have the xattr, but the rest won't. This patch add a mechanism that will remove the extra xattrs during lookup. This patch is a modification to a previous patch based on comments that were made after merge: https://review.gluster.org/#/c/glusterfs/+/24613/ fixes: #1324 Change-Id: Ifec0b7aea6cd40daa8b0319b881191cf83e031d1 Signed-off-by: Barak Sason Rofman <bsasonro@redhat.com>
Diffstat (limited to 'xlators/cluster/dht/src')
-rw-r--r--xlators/cluster/dht/src/dht-common.c14
-rw-r--r--xlators/cluster/dht/src/dht-common.h4
-rw-r--r--xlators/cluster/dht/src/dht-helper.c4
-rw-r--r--xlators/cluster/dht/src/dht-selfheal.c11
4 files changed, 20 insertions, 13 deletions
diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c
index 6a649ac..65c9c0b 100644
--- a/xlators/cluster/dht/src/dht-common.c
+++ b/xlators/cluster/dht/src/dht-common.c
@@ -17,6 +17,7 @@
#include <glusterfs/quota-common-utils.h>
#include <glusterfs/upcall-utils.h>
#include "glusterfs/compat-errno.h" // for ENODATA on BSD
+#include <glusterfs/common-utils.h>
#include <sys/time.h>
#include <libgen.h>
@@ -43,15 +44,6 @@ dht_common_mark_mdsxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
static int
dht_rmdir_unlock(call_frame_t *frame, xlator_t *this);
-char *xattrs_to_heal[] = {"user.",
- POSIX_ACL_ACCESS_XATTR,
- POSIX_ACL_DEFAULT_XATTR,
- QUOTA_LIMIT_KEY,
- QUOTA_LIMIT_OBJECTS_KEY,
- GF_SELINUX_XATTR_KEY,
- GF_XATTR_MDATA_KEY,
- NULL};
-
static const char *dht_dbg_vxattrs[] = {DHT_DBG_HASHED_SUBVOL_PATTERN, NULL};
/* Check the xdata to make sure EBADF has been set by client xlator */
@@ -84,6 +76,8 @@ dht_set_fixed_dir_stat(struct iatt *stat)
static gf_boolean_t
dht_match_xattr(const char *key)
{
+ char **xattrs_to_heal = get_xattrs_to_heal();
+
return gf_get_index_by_elem(xattrs_to_heal, (char *)key) >= 0;
}
@@ -5460,11 +5454,13 @@ dht_dir_common_set_remove_xattr(call_frame_t *frame, xlator_t *this, loc_t *loc,
int call_cnt = 0;
dht_local_t *local = NULL;
char gfid_local[GF_UUID_BUF_SIZE] = {0};
+ char **xattrs_to_heal;
conf = this->private;
local = frame->local;
call_cnt = conf->subvolume_cnt;
local->flags = flags;
+ xattrs_to_heal = get_xattrs_to_heal();
if (!gf_uuid_is_null(local->gfid)) {
gf_uuid_unparse(local->gfid, gfid_local);
diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h
index 8d539f1..028c6ac 100644
--- a/xlators/cluster/dht/src/dht-common.h
+++ b/xlators/cluster/dht/src/dht-common.h
@@ -52,10 +52,6 @@
#define DHT_DBG_HASHED_SUBVOL_PATTERN "dht.file.hashed-subvol.*"
#define DHT_DBG_HASHED_SUBVOL_KEY "dht.file.hashed-subvol."
-/* Array to hold custom xattr keys
- */
-extern char *xattrs_to_heal[];
-
/* Rebalance nodeuuid flags */
#define REBAL_NODEUUID_MINE 0x01
diff --git a/xlators/cluster/dht/src/dht-helper.c b/xlators/cluster/dht/src/dht-helper.c
index 632c9b9..3f2fe43 100644
--- a/xlators/cluster/dht/src/dht-helper.c
+++ b/xlators/cluster/dht/src/dht-helper.c
@@ -2267,6 +2267,7 @@ dht_dir_set_heal_xattr(xlator_t *this, dht_local_t *local, dict_t *dst,
int luret = -1;
int luflag = -1;
int i = 0;
+ char **xattrs_to_heal;
if (!src || !dst) {
gf_smsg(this->name, GF_LOG_WARNING, EINVAL, DHT_MSG_DST_NULL_SET_FAILED,
@@ -2281,6 +2282,9 @@ dht_dir_set_heal_xattr(xlator_t *this, dht_local_t *local, dict_t *dst,
and set it to dst dict, here index start from 1 because
user xattr already checked in previous statement
*/
+
+ xattrs_to_heal = get_xattrs_to_heal();
+
for (i = 1; xattrs_to_heal[i]; i++) {
keyval = dict_get(src, xattrs_to_heal[i]);
if (keyval) {
diff --git a/xlators/cluster/dht/src/dht-selfheal.c b/xlators/cluster/dht/src/dht-selfheal.c
index 6004ab0..1b6571c 100644
--- a/xlators/cluster/dht/src/dht-selfheal.c
+++ b/xlators/cluster/dht/src/dht-selfheal.c
@@ -2156,6 +2156,15 @@ dht_dir_heal_xattrs(void *data)
if (subvol == mds_subvol)
continue;
if (uret || uflag) {
+ /* Custom xattr heal is required - let posix handle it */
+ ret = dict_set_int8(xdata, "sync_backend_xattrs", _gf_true);
+ if (ret) {
+ gf_smsg(this->name, GF_LOG_WARNING, 0, DHT_MSG_DICT_SET_FAILED,
+ "path=%s", local->loc.path, "key=%s",
+ "sync_backend_xattrs", NULL);
+ goto out;
+ }
+
ret = syncop_setxattr(subvol, &local->loc, user_xattr, 0, xdata,
NULL);
if (ret) {
@@ -2164,6 +2173,8 @@ dht_dir_heal_xattrs(void *data)
DHT_MSG_DIR_XATTR_HEAL_FAILED,
"set-user-xattr-failed path=%s", local->loc.path,
"subvol=%s", subvol->name, "gfid=%s", gfid, NULL);
+ } else {
+ dict_del(xdata, "sync_backend_xattrs");
}
}
}