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From aff18f761ef64d55635daa9a1d2140fe35632820 Mon Sep 17 00:00:00 2001
From: Mohit Agrawal <moagrawal@redhat.com>
Date: Fri, 29 Mar 2019 11:48:32 +0530
Subject: [PATCH 109/124] glusterd: Optimize glusterd handshaking code path
Problem: At the time of handshaking glusterd populate volume
data in a dictionary.While no. of volumes are configured
more than 1500 glusterd takes more than 10 min to generated
the data.Due to taking more time rpc request times out and
rpc start bailing of call frames.
Solution: To optimize the code done below changes
1) Spawn multiple threads to populate volumes data in bulk
in separate dictionary and introduce an option
glusterd.brick-dict-thread-count to configure no. of threads
to populate volume data.
2) Populate tier data only while volume type is tier
3) Compare snap data only while snap_count is non zero
> Fixes: bz#1699339
> Change-Id: I38dc71970c049217f9d1a06fc0aaf4c26eab18f5
> Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
> (Cherry picked from commit 26a19d9da3ab5604db02d4ca02ce868fb57193a4)
> (Reviewed on upstream link https://review.gluster.org/#/c/glusterfs/+/22556/)
Bug: 1652461
Change-Id: Ia81671a7e1f173bcb32da9dc439be9e61c18bde1
Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/167981
Tested-by: Mohit Agrawal <moagrawa@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: RHGS Build Bot <nigelb@redhat.com>
---
libglusterfs/src/glusterfs/globals.h | 4 +-
tests/bugs/glusterd/bug-1699339.t | 69 ++++++
xlators/mgmt/glusterd/src/glusterd-op-sm.c | 1 +
.../mgmt/glusterd/src/glusterd-snapshot-utils.c | 3 +
xlators/mgmt/glusterd/src/glusterd-utils.c | 269 +++++++++++++++++----
xlators/mgmt/glusterd/src/glusterd-volume-set.c | 55 +++++
xlators/mgmt/glusterd/src/glusterd.h | 10 +
7 files changed, 362 insertions(+), 49 deletions(-)
create mode 100644 tests/bugs/glusterd/bug-1699339.t
diff --git a/libglusterfs/src/glusterfs/globals.h b/libglusterfs/src/glusterfs/globals.h
index 6642ba0..e45db14 100644
--- a/libglusterfs/src/glusterfs/globals.h
+++ b/libglusterfs/src/glusterfs/globals.h
@@ -50,7 +50,7 @@
1 /* MIN is the fresh start op-version, mostly \
should not change */
#define GD_OP_VERSION_MAX \
- GD_OP_VERSION_6_0 /* MAX VERSION is the maximum \
+ GD_OP_VERSION_7_0 /* MAX VERSION is the maximum \
count in VME table, should \
keep changing with \
introduction of newer \
@@ -134,6 +134,8 @@
#define GD_OP_VERSION_6_0 60000 /* Op-version for GlusterFS 6.0 */
+#define GD_OP_VERSION_7_0 70000 /* Op-version for GlusterFS 7.0 */
+
#include "glusterfs/xlator.h"
#include "glusterfs/options.h"
diff --git a/tests/bugs/glusterd/bug-1699339.t b/tests/bugs/glusterd/bug-1699339.t
new file mode 100644
index 0000000..3e950f4
--- /dev/null
+++ b/tests/bugs/glusterd/bug-1699339.t
@@ -0,0 +1,69 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../cluster.rc
+
+cleanup;
+
+NUM_VOLS=15
+
+
+get_brick_base () {
+ printf "%s/vol%02d" $B0 $1
+}
+
+function count_up_bricks {
+ vol=$1;
+ $CLI_1 --xml volume status $vol | grep '<status>1' | wc -l
+}
+
+create_volume () {
+
+ local vol_name=$(printf "%s-vol%02d" $V0 $1)
+
+ TEST $CLI_1 volume create $vol_name replica 3 $H1:$B1/${vol_name} $H2:$B2/${vol_name} $H3:$B3/${vol_name}
+ TEST $CLI_1 volume start $vol_name
+}
+
+TEST launch_cluster 3
+TEST $CLI_1 volume set all cluster.brick-multiplex on
+
+# The option accepts the value in the range from 5 to 200
+TEST ! $CLI_1 volume set all glusterd.vol_count_per_thread 210
+TEST ! $CLI_1 volume set all glusterd.vol_count_per_thread 4
+
+TEST $CLI_1 volume set all glusterd.vol_count_per_thread 5
+
+TEST $CLI_1 peer probe $H2;
+EXPECT_WITHIN $PROBE_TIMEOUT 1 peer_count
+
+TEST $CLI_1 peer probe $H3;
+EXPECT_WITHIN $PROBE_TIMEOUT 2 peer_count
+
+# Our infrastructure can't handle an arithmetic expression here. The formula
+# is (NUM_VOLS-1)*5 because it sees each TEST/EXPECT once but needs the other
+# NUM_VOLS-1 and there are 5 such statements in each iteration.
+TESTS_EXPECTED_IN_LOOP=28
+for i in $(seq 1 $NUM_VOLS); do
+ starttime="$(date +%s)";
+ create_volume $i
+done
+
+TEST kill_glusterd 1
+
+vol1=$(printf "%s-vol%02d" $V0 1)
+TEST $CLI_2 volume set $vol1 performance.readdir-ahead on
+vol2=$(printf "%s-vol%02d" $V0 2)
+TEST $CLI_2 volume set $vol2 performance.readdir-ahead on
+
+# Bring back 1st glusterd
+TEST $glusterd_1
+EXPECT_WITHIN $PROBE_TIMEOUT 2 peer_count
+
+EXPECT_WITHIN $PROBE_TIMEOUT "on" volinfo_field_1 $vol1 performance.readdir-ahead
+
+vol_name=$(printf "%s-vol%02d" $V0 2)
+EXPECT_WITHIN $PROBE_TIMEOUT "on" volinfo_field_1 $vol2 performance.readdir-ahead
+
+cleanup
diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index 95f9707..94a5e1f 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -87,6 +87,7 @@ glusterd_all_vol_opts valid_all_vol_opts[] = {
* TBD: Discuss the default value for this. Maybe this should be a
* dynamic value depending on the memory specifications per node */
{GLUSTERD_BRICKMUX_LIMIT_KEY, GLUSTERD_BRICKMUX_LIMIT_DFLT_VALUE},
+ {GLUSTERD_VOL_CNT_PER_THRD, GLUSTERD_VOL_CNT_PER_THRD_DEFAULT_VALUE},
/*{GLUSTERD_LOCALTIME_LOGGING_KEY, "disable"},*/
{GLUSTERD_DAEMON_LOG_LEVEL_KEY, "INFO"},
{NULL},
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
index b3c4158..d225854 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
@@ -2099,6 +2099,9 @@ glusterd_compare_friend_snapshots(dict_t *peer_data, char *peername,
goto out;
}
+ if (!snap_count)
+ goto out;
+
for (i = 1; i <= snap_count; i++) {
/* Compare one snapshot from peer_data at a time */
ret = glusterd_compare_snap(peer_data, i, peername, peerid);
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index fdd7d91..ff6102b 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -155,6 +155,47 @@ out:
return ret;
}
+int
+get_gd_vol_thread_limit(int *thread_limit)
+{
+ char *value = NULL;
+ int ret = -1;
+ int vol_per_thread_limit = 0;
+ xlator_t *this = NULL;
+ glusterd_conf_t *priv = NULL;
+
+ this = THIS;
+ GF_VALIDATE_OR_GOTO("glusterd", this, out);
+
+ priv = this->private;
+ GF_VALIDATE_OR_GOTO(this->name, priv, out);
+
+ if (!is_brick_mx_enabled()) {
+ vol_per_thread_limit = 1;
+ ret = 0;
+ goto out;
+ }
+
+ ret = dict_get_strn(priv->opts, GLUSTERD_VOL_CNT_PER_THRD,
+ SLEN(GLUSTERD_VOL_CNT_PER_THRD), &value);
+ if (ret) {
+ value = GLUSTERD_VOL_CNT_PER_THRD_DEFAULT_VALUE;
+ }
+ ret = gf_string2int(value, &vol_per_thread_limit);
+ if (ret)
+ goto out;
+
+out:
+ *thread_limit = vol_per_thread_limit;
+
+ gf_msg_debug("glusterd", 0,
+ "Per Thread volume limit set to %d glusterd to populate dict "
+ "data parallel",
+ *thread_limit);
+
+ return ret;
+}
+
extern struct volopt_map_entry glusterd_volopt_map[];
extern glusterd_all_vol_opts valid_all_vol_opts[];
@@ -3070,50 +3111,55 @@ glusterd_add_volume_to_dict(glusterd_volinfo_t *volinfo, dict_t *dict,
/* tiering related variables */
- snprintf(key, sizeof(key), "%s%d.cold_brick_count", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_brick_count);
- if (ret)
- goto out;
+ if (volinfo->type == GF_CLUSTER_TYPE_TIER) {
+ snprintf(key, sizeof(key), "%s%d.cold_brick_count", prefix, count);
+ ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_brick_count);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.cold_type", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_type);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.cold_type", prefix, count);
+ ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_type);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.cold_replica_count", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_replica_count);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.cold_replica_count", prefix, count);
+ ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_replica_count);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.cold_disperse_count", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_disperse_count);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.cold_disperse_count", prefix, count);
+ ret = dict_set_uint32(dict, key,
+ volinfo->tier_info.cold_disperse_count);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.cold_redundancy_count", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_redundancy_count);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.cold_redundancy_count", prefix, count);
+ ret = dict_set_uint32(dict, key,
+ volinfo->tier_info.cold_redundancy_count);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.cold_dist_count", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.cold_dist_leaf_count);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.cold_dist_count", prefix, count);
+ ret = dict_set_uint32(dict, key,
+ volinfo->tier_info.cold_dist_leaf_count);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.hot_brick_count", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.hot_brick_count);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.hot_brick_count", prefix, count);
+ ret = dict_set_uint32(dict, key, volinfo->tier_info.hot_brick_count);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.hot_type", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.hot_type);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.hot_type", prefix, count);
+ ret = dict_set_uint32(dict, key, volinfo->tier_info.hot_type);
+ if (ret)
+ goto out;
- snprintf(key, sizeof(key), "%s%d.hot_replica_count", prefix, count);
- ret = dict_set_uint32(dict, key, volinfo->tier_info.hot_replica_count);
- if (ret)
- goto out;
+ snprintf(key, sizeof(key), "%s%d.hot_replica_count", prefix, count);
+ ret = dict_set_uint32(dict, key, volinfo->tier_info.hot_replica_count);
+ if (ret)
+ goto out;
+ }
snprintf(key, sizeof(key), "%s%d", prefix, count);
ret = gd_add_vol_snap_details_to_dict(dict, key, volinfo);
@@ -3363,33 +3409,40 @@ out:
return ret;
}
-int32_t
-glusterd_add_volumes_to_export_dict(dict_t **peer_data)
+void *
+glusterd_add_bulk_volumes_create_thread(void *data)
{
int32_t ret = -1;
- dict_t *dict = NULL;
glusterd_conf_t *priv = NULL;
glusterd_volinfo_t *volinfo = NULL;
int32_t count = 0;
- glusterd_dict_ctx_t ctx = {0};
xlator_t *this = NULL;
+ glusterd_add_dict_args_t *arg = NULL;
+ dict_t *dict = NULL;
+ int start = 0;
+ int end = 0;
- this = THIS;
- GF_ASSERT(this);
+ GF_ASSERT(data);
+
+ arg = data;
+ dict = arg->voldict;
+ start = arg->start;
+ end = arg->end;
+ this = arg->this;
+ THIS = arg->this;
priv = this->private;
GF_ASSERT(priv);
- dict = dict_new();
- if (!dict)
- goto out;
-
cds_list_for_each_entry(volinfo, &priv->volumes, vol_list)
{
count++;
+ if ((count < start) || (count > end))
+ continue;
+
ret = glusterd_add_volume_to_dict(volinfo, dict, count, "volume");
if (ret)
goto out;
- if (!glusterd_is_volume_quota_enabled(volinfo))
+ if (!dict_get_sizen(volinfo->dict, VKEY_FEATURES_QUOTA))
continue;
ret = glusterd_vol_add_quota_conf_to_dict(volinfo, dict, count,
"volume");
@@ -3397,7 +3450,122 @@ glusterd_add_volumes_to_export_dict(dict_t **peer_data)
goto out;
}
- ret = dict_set_int32n(dict, "count", SLEN("count"), count);
+out:
+ GF_ATOMIC_DEC(priv->thread_count);
+ free(arg);
+ return NULL;
+}
+
+int32_t
+glusterd_add_volumes_to_export_dict(dict_t **peer_data)
+{
+ int32_t ret = -1;
+ dict_t *dict = NULL;
+ dict_t *dict_arr[128] = {
+ 0,
+ };
+ glusterd_conf_t *priv = NULL;
+ glusterd_volinfo_t *volinfo = NULL;
+ int32_t count = 0;
+ glusterd_dict_ctx_t ctx = {0};
+ xlator_t *this = NULL;
+ int totthread = 0;
+ int volcnt = 0;
+ int start = 1;
+ int endindex = 0;
+ int vol_per_thread_limit = 0;
+ glusterd_add_dict_args_t *arg = NULL;
+ pthread_t th_id = {
+ 0,
+ };
+ int th_ret = 0;
+ int i = 0;
+
+ this = THIS;
+ GF_ASSERT(this);
+ priv = this->private;
+ GF_ASSERT(priv);
+
+ dict = dict_new();
+ if (!dict)
+ goto out;
+
+ /* Count the total number of volumes */
+ cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) volcnt++;
+
+ get_gd_vol_thread_limit(&vol_per_thread_limit);
+
+ if ((vol_per_thread_limit == 1) || (vol_per_thread_limit > 100)) {
+ totthread = 0;
+ } else {
+ totthread = volcnt / vol_per_thread_limit;
+ endindex = volcnt % vol_per_thread_limit;
+ if (endindex)
+ totthread++;
+ }
+
+ if (totthread == 0) {
+ cds_list_for_each_entry(volinfo, &priv->volumes, vol_list)
+ {
+ count++;
+ ret = glusterd_add_volume_to_dict(volinfo, dict, count, "volume");
+ if (ret)
+ goto out;
+
+ if (!dict_get_sizen(volinfo->dict, VKEY_FEATURES_QUOTA))
+ continue;
+
+ ret = glusterd_vol_add_quota_conf_to_dict(volinfo, dict, count,
+ "volume");
+ if (ret)
+ goto out;
+ }
+ } else {
+ for (i = 0; i < totthread; i++) {
+ arg = calloc(1, sizeof(*arg));
+ dict_arr[i] = dict_new();
+ arg->this = this;
+ arg->voldict = dict_arr[i];
+ arg->start = start;
+ if (!endindex) {
+ arg->end = ((i + 1) * vol_per_thread_limit);
+ } else {
+ arg->end = (start + endindex);
+ }
+ th_ret = gf_thread_create_detached(
+ &th_id, glusterd_add_bulk_volumes_create_thread, arg,
+ "bulkvoldict");
+ if (th_ret) {
+ gf_log(this->name, GF_LOG_ERROR,
+ "glusterd_add_bulk_volume %s"
+ " thread creation failed",
+ "bulkvoldict");
+ free(arg);
+ goto out;
+ }
+
+ start = start + vol_per_thread_limit;
+ GF_ATOMIC_INC(priv->thread_count);
+ gf_log(this->name, GF_LOG_INFO,
+ "Create thread %d to populate dict data for volume"
+ " start index is %d end index is %d",
+ (i + 1), arg->start, arg->end);
+ }
+ while (GF_ATOMIC_GET(priv->thread_count)) {
+ sleep(1);
+ }
+
+ gf_log(this->name, GF_LOG_INFO,
+ "Finished dictionary popluation in all threads");
+ for (i = 0; i < totthread; i++) {
+ dict_copy_with_ref(dict_arr[i], dict);
+ dict_unref(dict_arr[i]);
+ }
+ gf_log(this->name, GF_LOG_INFO,
+ "Finished merger of all dictionraies into single one");
+ }
+
+ ret = dict_set_int32n(dict, "count", SLEN("count"), volcnt);
if (ret)
goto out;
@@ -3499,6 +3667,9 @@ glusterd_compare_friend_volume(dict_t *peer_data, int32_t count,
goto out;
}
+ if (!dict_get_sizen(volinfo->dict, VKEY_FEATURES_QUOTA))
+ goto skip_quota;
+
snprintf(key, sizeof(key), "volume%d.quota-version", count);
ret = dict_get_uint32(peer_data, key, &quota_version);
if (ret) {
@@ -3550,6 +3721,8 @@ glusterd_compare_friend_volume(dict_t *peer_data, int32_t count,
goto out;
}
}
+
+skip_quota:
*status = GLUSTERD_VOL_COMP_SCS;
out:
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-set.c b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
index 42ca9bb..10aa2ae 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-set.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
@@ -1058,6 +1058,51 @@ out:
}
static int
+validate_volume_per_thread_limit(glusterd_volinfo_t *volinfo, dict_t *dict,
+ char *key, char *value, char **op_errstr)
+{
+ xlator_t *this = NULL;
+ uint val = 0;
+ int ret = -1;
+
+ this = THIS;
+ GF_VALIDATE_OR_GOTO("glusterd", this, out);
+
+ if (!is_brick_mx_enabled()) {
+ gf_asprintf(op_errstr,
+ "Brick-multiplexing is not enabled. "
+ "Please enable brick multiplexing before trying "
+ "to set this option.");
+ gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_WRONG_OPTS_SETTING, "%s",
+ *op_errstr);
+ goto out;
+ }
+
+ ret = gf_string2uint(value, &val);
+ if (ret) {
+ gf_asprintf(op_errstr,
+ "%s is not a valid count. "
+ "%s expects an unsigned integer.",
+ value, key);
+ gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_INVALID_ENTRY, "%s",
+ *op_errstr);
+ }
+
+ if ((val < 5) || (val > 200)) {
+ gf_asprintf(
+ op_errstr,
+ "Please set this option to a greater than 5 or less than 200 "
+ "to optimize dict generated while no. of volumes are more");
+ ret = -1;
+ goto out;
+ }
+out:
+ gf_msg_debug("glusterd", 0, "Returning %d", ret);
+
+ return ret;
+}
+
+static int
validate_boolean(glusterd_volinfo_t *volinfo, dict_t *dict, char *key,
char *value, char **op_errstr)
{
@@ -3520,6 +3565,16 @@ struct volopt_map_entry glusterd_volopt_map[] = {
"brick multiplexing. Brick multiplexing ensures that "
"compatible brick instances can share one single "
"brick process."},
+ {.key = GLUSTERD_VOL_CNT_PER_THRD,
+ .voltype = "mgmt/glusterd",
+ .value = GLUSTERD_VOL_CNT_PER_THRD_DEFAULT_VALUE,
+ .op_version = GD_OP_VERSION_7_0,
+ .validate_fn = validate_volume_per_thread_limit,
+ .type = GLOBAL_NO_DOC,
+ .description =
+ "This option can be used to limit the number of volumes "
+ "handled by per thread to populate peer data.The option accepts "
+ " the value in the range of 5 to 200"},
{.key = GLUSTERD_BRICKMUX_LIMIT_KEY,
.voltype = "mgmt/glusterd",
.value = GLUSTERD_BRICKMUX_LIMIT_DFLT_VALUE,
diff --git a/xlators/mgmt/glusterd/src/glusterd.h b/xlators/mgmt/glusterd/src/glusterd.h
index 0ac6e63..bd9f509 100644
--- a/xlators/mgmt/glusterd/src/glusterd.h
+++ b/xlators/mgmt/glusterd/src/glusterd.h
@@ -57,8 +57,10 @@
#define GLUSTER_SHARED_STORAGE "gluster_shared_storage"
#define GLUSTERD_SHARED_STORAGE_KEY "cluster.enable-shared-storage"
#define GLUSTERD_BRICK_MULTIPLEX_KEY "cluster.brick-multiplex"
+#define GLUSTERD_VOL_CNT_PER_THRD "glusterd.vol_count_per_thread"
#define GLUSTERD_BRICKMUX_LIMIT_KEY "cluster.max-bricks-per-process"
#define GLUSTERD_BRICKMUX_LIMIT_DFLT_VALUE "250"
+#define GLUSTERD_VOL_CNT_PER_THRD_DEFAULT_VALUE "100"
#define GLUSTERD_LOCALTIME_LOGGING_KEY "cluster.localtime-logging"
#define GLUSTERD_DAEMON_LOG_LEVEL_KEY "cluster.daemon-log-level"
@@ -225,8 +227,16 @@ typedef struct {
which might lead the modification of volinfo
list.
*/
+ gf_atomic_t thread_count;
} glusterd_conf_t;
+typedef struct glusterd_add_dict_args {
+ xlator_t *this;
+ dict_t *voldict;
+ int start;
+ int end;
+} glusterd_add_dict_args_t;
+
typedef enum gf_brick_status {
GF_BRICK_STOPPED,
GF_BRICK_STARTED,
--
1.8.3.1