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authorshishir gowda <shishirng@gluster.com>2011-04-14 05:11:33 +0000
committerAnand Avati <avati@gluster.com>2011-05-31 21:53:59 -0700
commit0d2d861849a3b066eac676ebed4e16accdfe8598 (patch)
tree46845464af66310163e83c62a1fae0b168d95cf6 /xlators/cluster/dht/src
parentdd476eb4678df02ff22f9aa7db7453f857721c42 (diff)
DHT:first_up_subvol should be the one up the longest
Signed-off-by: shishir gowda <shishirng@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2684 (Dir missing from mount point) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2684
Diffstat (limited to 'xlators/cluster/dht/src')
-rw-r--r--xlators/cluster/dht/src/dht-common.c10
-rw-r--r--xlators/cluster/dht/src/dht-common.h1
-rw-r--r--xlators/cluster/dht/src/dht-helper.c12
-rw-r--r--xlators/cluster/dht/src/dht-mem-types.h1
4 files changed, 20 insertions, 4 deletions
diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c
index 8fa93fa076b..cd2985002b2 100644
--- a/xlators/cluster/dht/src/dht-common.c
+++ b/xlators/cluster/dht/src/dht-common.c
@@ -4992,6 +4992,11 @@ dht_init_subvolumes (xlator_t *this, dht_conf_t *conf)
return -1;
}
+ conf->subvol_up_time = GF_CALLOC (cnt, sizeof (time_t),
+ gf_dht_mt_subvol_time);
+ if (!conf->subvol_up_time) {
+ return -1;
+ }
return 0;
}
@@ -5008,7 +5013,7 @@ dht_notify (xlator_t *this, int event, void *data, ...)
int had_heard_from_all = 0;
int have_heard_from_all = 0;
-
+ struct timeval time = {0,};
conf = this->private;
if (!conf)
@@ -5042,10 +5047,12 @@ dht_notify (xlator_t *this, int event, void *data, ...)
break;
}
+ gettimeofday (&time, NULL);
LOCK (&conf->subvolume_lock);
{
conf->subvolume_status[cnt] = 1;
conf->last_event[cnt] = event;
+ conf->subvol_up_time[cnt] = time.tv_sec;
}
UNLOCK (&conf->subvolume_lock);
@@ -5089,6 +5096,7 @@ dht_notify (xlator_t *this, int event, void *data, ...)
{
conf->subvolume_status[cnt] = 0;
conf->last_event[cnt] = event;
+ conf->subvol_up_time[cnt] = 0;
}
UNLOCK (&conf->subvolume_lock);
diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h
index 99b626c1695..95c20af1fe2 100644
--- a/xlators/cluster/dht/src/dht-common.h
+++ b/xlators/cluster/dht/src/dht-common.h
@@ -170,6 +170,7 @@ struct dht_conf {
gf_boolean_t use_readdirp;
char vol_uuid[UUID_SIZE + 1];
gf_boolean_t assert_no_child_down;
+ time_t *subvol_up_time;
};
typedef struct dht_conf dht_conf_t;
diff --git a/xlators/cluster/dht/src/dht-helper.c b/xlators/cluster/dht/src/dht-helper.c
index cd57b9ea083..42c6d025fc5 100644
--- a/xlators/cluster/dht/src/dht-helper.c
+++ b/xlators/cluster/dht/src/dht-helper.c
@@ -268,6 +268,7 @@ dht_first_up_subvol (xlator_t *this)
dht_conf_t *conf = NULL;
xlator_t *child = NULL;
int i = 0;
+ time_t time = 0;
conf = this->private;
if (!conf)
@@ -276,9 +277,14 @@ dht_first_up_subvol (xlator_t *this)
LOCK (&conf->subvolume_lock);
{
for (i = 0; i < conf->subvolume_cnt; i++) {
- if (conf->subvolume_status[i]) {
- child = conf->subvolumes[i];
- break;
+ if (conf->subvol_up_time[i]) {
+ if (!time) {
+ time = conf->subvol_up_time[i];
+ child = conf->subvolumes[i];
+ } else if (time > conf->subvol_up_time[i]) {
+ time = conf->subvol_up_time[i];
+ child = conf->subvolumes[i];
+ }
}
}
}
diff --git a/xlators/cluster/dht/src/dht-mem-types.h b/xlators/cluster/dht/src/dht-mem-types.h
index af31c8b0724..38bd3de1581 100644
--- a/xlators/cluster/dht/src/dht-mem-types.h
+++ b/xlators/cluster/dht/src/dht-mem-types.h
@@ -35,6 +35,7 @@ enum gf_dht_mem_types_ {
gf_switch_mt_dht_du_t,
gf_switch_mt_switch_sched_array,
gf_switch_mt_switch_struct,
+ gf_dht_mt_subvol_time,
gf_dht_mt_end
};
#endif