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authorshishir gowda <sgowda@redhat.com>2012-08-07 12:55:31 +0530
committerAnand Avati <avati@redhat.com>2012-08-13 23:24:04 -0700
commite404e9b81f18c0a36a5c67ebf041ac0a00ca2eb1 (patch)
treed0d1abbbfcd100814487cb1692487a6c98989c45 /xlators/cluster/dht/src/dht-common.c
parentcdf6ad3695b0842acc3d4aadc5ebb474f07e8913 (diff)
cluster/dht: Optimize readdirp calls in DHT
Bring in option which is supported by posix xlator to filter out directory's entries from being returned. DHT would now request non-first subvols to filter out directory entries. dht xlator-option readdir-optimize will enable this optimization Change-Id: I35224bc81c9657f54f952efac02790276c35ded5 BUG: 838199 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.com/3772 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/cluster/dht/src/dht-common.c')
-rw-r--r--xlators/cluster/dht/src/dht-common.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c
index 5b57552c388..fbe18959a43 100644
--- a/xlators/cluster/dht/src/dht-common.c
+++ b/xlators/cluster/dht/src/dht-common.c
@@ -2858,6 +2858,16 @@ done:
goto unwind;
}
+ if (conf->readdir_optimize == _gf_true) {
+ if (next_subvol != dht_first_up_subvol (this)) {
+ ret = dict_set_int32 (local->xattr,
+ GF_READDIR_SKIP_DIRS, 1);
+ if (ret)
+ gf_log (this->name, GF_LOG_ERROR,
+ "dict set failed");
+ }
+ }
+
STACK_WIND (frame, dht_readdirp_cbk,
next_subvol, next_subvol->fops->readdirp,
local->fd, local->size, next_offset,
@@ -2983,11 +2993,14 @@ dht_do_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
xlator_t *xvol = NULL;
off_t xoff = 0;
int ret = 0;
+ dht_conf_t *conf = NULL;
VALIDATE_OR_GOTO (frame, err);
VALIDATE_OR_GOTO (this, err);
VALIDATE_OR_GOTO (fd, err);
+ conf = this->private;
+
local = dht_local_init (frame, NULL, NULL, whichop);
if (!local) {
op_errno = ENOMEM;
@@ -3015,6 +3028,16 @@ dht_do_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
gf_log (this->name, GF_LOG_WARNING,
"failed to set 'glusterfs.dht.linkto'"
" key");
+ if (conf->readdir_optimize == _gf_true) {
+ if (xvol != dht_first_up_subvol (this)) {
+ ret = dict_set_int32 (local->xattr,
+ GF_READDIR_SKIP_DIRS, 1);
+ if (ret)
+ gf_log (this->name,
+ GF_LOG_ERROR,
+ "Dict set failed");
+ }
+ }
}
STACK_WIND (frame, dht_readdirp_cbk, xvol, xvol->fops->readdirp,