diff options
| author | Krutika Dhananjay <kdhananj@redhat.com> | 2015-03-17 13:16:45 +0530 |
|---|---|---|
| committer | Raghavendra Bhat <raghavendra@redhat.com> | 2015-03-25 01:58:53 -0700 |
| commit | 6477c13c63e181dec4f034d8d25435026550d93a (patch) | |
| tree | 606d8e9acbe88a90fd0b33ea6f09eb033c0c8aa1 /xlators/cluster/afr/src/afr.c | |
| parent | e4d8dc2e80f0683c69481c47875c01c8c3723814 (diff) | |
cluster/afr: Make read child match check in afr optional
Backport of: http://review.gluster.org/9917
Having this particular check which was introduced by
commit c57c455347a72ebf0085add49ff59aae26c7a70d causes a drop in
performance in readdirp. So the behavior is made configurable with this
patch.
Change-Id: I4a19813cfc786504340264a5a5533a0c43a1d4a4
BUG: 1202673
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/9929
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Diffstat (limited to 'xlators/cluster/afr/src/afr.c')
| -rw-r--r-- | xlators/cluster/afr/src/afr.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/xlators/cluster/afr/src/afr.c b/xlators/cluster/afr/src/afr.c index 2c0ff05fd78..1382f266872 100644 --- a/xlators/cluster/afr/src/afr.c +++ b/xlators/cluster/afr/src/afr.c @@ -200,6 +200,9 @@ reconfigure (xlator_t *this, dict_t *options) GF_OPTION_RECONF ("iam-self-heal-daemon", priv->shd.iamshd, options, bool, out); + GF_OPTION_RECONF ("consistent-metadata", priv->consistent_metadata, + options, bool, out); + priv->did_discovery = _gf_false; ret = 0; @@ -347,6 +350,9 @@ init (xlator_t *this) GF_OPTION_INIT ("iam-self-heal-daemon", priv->shd.iamshd, bool, out); + GF_OPTION_INIT ("consistent-metadata", priv->consistent_metadata, bool, + out); + priv->wait_count = 1; priv->child_up = GF_CALLOC (sizeof (unsigned char), child_count, @@ -749,5 +755,15 @@ struct volume_options options[] = { .type = GF_OPTION_TYPE_BOOL, .default_value = "off", }, + { .key = {"consistent-metadata"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "no", + .description = "If this option is enabled, readdirp will force " + "lookups on those entries read whose read child is " + "not the same as that of the parent. This will " + "guarantee that all read operations on a file serve " + "attributes from the same subvol as long as it holds " + " a good copy of the file/dir.", + }, { .key = {NULL} }, }; |