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authorDan Lambright <dlambrig@redhat.com>2015-03-30 14:27:44 -0400
committerKaleb KEITHLEY <kkeithle@redhat.com>2015-04-08 07:28:21 +0000
commita8260044291cb6eee44974d8c52caa9f4cfb3993 (patch)
tree3b9b0f83bd6ae869a26a75dafdc988196a62d049 /xlators/cluster/dht/src/tier.c
parentf0cd1d73c63001740cd7691a77df7631c9b8e8dc (diff)
glusterd: Support distributed replicated volumes on hot tier
We did not set up the graph properly for hot tiers with replicated subvolumes. Also add check that the file has not already been moved by another replicated brick on the same node. Change-Id: I9adef565ab60f6774810962d912168b77a6032fa BUG: 1206517 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/10054 Reviewed-by: Joseph Fernandes <josferna@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Diffstat (limited to 'xlators/cluster/dht/src/tier.c')
-rw-r--r--xlators/cluster/dht/src/tier.c39
1 files changed, 35 insertions, 4 deletions
diff --git a/xlators/cluster/dht/src/tier.c b/xlators/cluster/dht/src/tier.c
index f8b32f1619f..fe18d7b91a9 100644
--- a/xlators/cluster/dht/src/tier.c
+++ b/xlators/cluster/dht/src/tier.c
@@ -142,12 +142,17 @@ tier_migrate_using_query_file (void *_args)
int total_status = 0;
FILE *queryFILE = NULL;
char *link_str = NULL;
+ xlator_t *src_subvol = NULL;
+ dht_conf_t *conf = NULL;
GF_VALIDATE_OR_GOTO ("tier", query_cbk_args, out);
GF_VALIDATE_OR_GOTO ("tier", query_cbk_args->this, out);
this = query_cbk_args->this;
GF_VALIDATE_OR_GOTO (this->name, query_cbk_args->defrag, out);
GF_VALIDATE_OR_GOTO (this->name, query_cbk_args->queryFILE, out);
+ GF_VALIDATE_OR_GOTO (this->name, this->private, out);
+
+ conf = this->private;
defrag = query_cbk_args->defrag;
@@ -300,8 +305,29 @@ tier_migrate_using_query_file (void *_args)
inode_unref (loc.inode);
loc.inode = linked_inode;
+ /*
+ * Do not promote/demote if file already is where it
+ * should be. This shall become a skipped count.
+ */
+ src_subvol = dht_subvol_get_cached(this, loc.inode);
+
+ if (query_cbk_args->is_promotion &&
+ src_subvol == conf->subvolumes[1]) {
+ per_link_status = -1;
+ goto error;
+ }
+
+ if (!query_cbk_args->is_promotion &&
+ src_subvol == conf->subvolumes[0]) {
+ per_link_status = -1;
+ goto error;
+ }
+
gf_msg (this->name, GF_LOG_INFO, 0,
- DHT_MSG_LOG_TIER_STATUS, "Tier migrate file %s",
+ DHT_MSG_LOG_TIER_STATUS, "Tier %d"
+ " src_subvol %s file %s",
+ query_cbk_args->is_promotion,
+ src_subvol->name,
loc.name);
if (tier_check_same_node (this, &loc, defrag)) {
@@ -587,6 +613,7 @@ tier_demote (void *args)
query_cbk_args.this = demotion_args->this;
query_cbk_args.defrag = demotion_args->defrag;
+ query_cbk_args.is_promotion = 0;
/*Build the query file using bricklist*/
ret = tier_build_migration_qfile(demotion_args, &query_cbk_args,
@@ -622,6 +649,7 @@ static void
query_cbk_args.this = promotion_args->this;
query_cbk_args.defrag = promotion_args->defrag;
+ query_cbk_args.is_promotion = 1;
/*Build the query file using bricklist*/
ret = tier_build_migration_qfile(promotion_args, &query_cbk_args,
@@ -641,7 +669,7 @@ out:
return NULL;
}
-static void
+static int
tier_get_bricklist (xlator_t *xl, dict_t *bricklist)
{
xlator_list_t *child = NULL;
@@ -690,14 +718,17 @@ tier_get_bricklist (xlator_t *xl, dict_t *bricklist)
if (dict_add_dynstr_with_alloc(bricklist, "brick",
db_path))
goto out;
+
+ ret = 0;
+ goto out;
}
}
for (child = xl->children; child; child = child->next) {
- tier_get_bricklist(child->xlator, bricklist);
+ ret = tier_get_bricklist(child->xlator, bricklist);
}
out:
- return;
+ return ret;
}
int