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authorPranith Kumar K <pkarampu@redhat.com>2015-10-30 15:56:14 +0530
committerPranith Kumar Karampuri <pkarampu@redhat.com>2015-11-17 01:26:52 -0800
commit60a4288f0a2444821e17ac6eaeb402b466dd4a1a (patch)
treee6a55e3921fb70a4735e95f09175072fe4060639 /xlators
parent133bc60c9b93245a51900d0e46bf19cc7916f2dc (diff)
mgmt/glusterd: Store arbiter-count and restore it
Backport of http://review.gluster.com/12475 Problem: 1) Glusterd doesn't remember about arbiter information of replica volume in store. When glusterd goes down and comes backup, arbiter volumes will become replica volumes. 2) Glusterd doesn't import/export arbiter information to/from the other peers. 3) Volume info doesn't show any arbiter count in the output. Fix: 1) Persist arbiter information in glusterd-store 2) Import/Export arbiter information of the volume 3) Change volume info output to show arbiter count. >Change-Id: I2db81e73d2694b01f7d07b08a17b41ad5a55c361 >BUG: 1276675 >Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> BUG: 1276907 Change-Id: I95c9857d645e02831892092bdd07539cc1a58270 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/12479 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'xlators')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-handler.c5
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.c15
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.h1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c17
4 files changed, 37 insertions, 1 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c
index 7d8c7d12b4e..1e54e3bad48 100644
--- a/xlators/mgmt/glusterd/src/glusterd-handler.c
+++ b/xlators/mgmt/glusterd/src/glusterd-handler.c
@@ -484,6 +484,11 @@ glusterd_add_volume_detail_to_dict (glusterd_volinfo_t *volinfo,
if (ret)
goto out;
+ snprintf (key, sizeof (key), "volume%d.arbiter_count", count);
+ ret = dict_set_int32 (volumes, key, volinfo->arbiter_count);
+ if (ret)
+ goto out;
+
snprintf (key, 256, "volume%d.transport", count);
ret = dict_set_int32 (volumes, key, volinfo->transport_type);
if (ret)
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
index 02291b1f838..73d416b384e 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.c
+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
@@ -949,9 +949,20 @@ glusterd_volume_exclude_options_write (int fd, glusterd_volinfo_t *volinfo)
if (ret)
goto out;
+ if ((conf->op_version >= GD_OP_VERSION_3_7_6) &&
+ volinfo->arbiter_count) {
+ snprintf (buf, sizeof (buf), "%d", volinfo->arbiter_count);
+ ret = gf_store_save_value (fd,
+ GLUSTERD_STORE_KEY_VOL_ARBITER_CNT,
+ buf);
+ if (ret)
+ goto out;
+ }
+
if (conf->op_version >= GD_OP_VERSION_3_6_0) {
snprintf (buf, sizeof (buf), "%d", volinfo->disperse_count);
- ret = gf_store_save_value (fd, GLUSTERD_STORE_KEY_VOL_DISPERSE_CNT,
+ ret = gf_store_save_value (fd,
+ GLUSTERD_STORE_KEY_VOL_DISPERSE_CNT,
buf);
if (ret)
goto out;
@@ -2589,6 +2600,8 @@ glusterd_store_update_volinfo (glusterd_volinfo_t *volinfo)
} else if (!strncmp (key, GLUSTERD_STORE_KEY_VOL_REPLICA_CNT,
strlen (GLUSTERD_STORE_KEY_VOL_REPLICA_CNT))) {
volinfo->replica_count = atoi (value);
+ } else if (!strcmp (key, GLUSTERD_STORE_KEY_VOL_ARBITER_CNT)) {
+ volinfo->arbiter_count = atoi (value);
} else if (!strncmp (key, GLUSTERD_STORE_KEY_VOL_DISPERSE_CNT,
strlen (GLUSTERD_STORE_KEY_VOL_DISPERSE_CNT))) {
volinfo->disperse_count = atoi (value);
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.h b/xlators/mgmt/glusterd/src/glusterd-store.h
index 4933adbdf7b..683edaef058 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.h
+++ b/xlators/mgmt/glusterd/src/glusterd-store.h
@@ -46,6 +46,7 @@ typedef enum glusterd_store_ver_ac_{
#define GLUSTERD_STORE_KEY_VOL_REPLICA_CNT "replica_count"
#define GLUSTERD_STORE_KEY_VOL_DISPERSE_CNT "disperse_count"
#define GLUSTERD_STORE_KEY_VOL_REDUNDANCY_CNT "redundancy_count"
+#define GLUSTERD_STORE_KEY_VOL_ARBITER_CNT "arbiter_count"
#define GLUSTERD_STORE_KEY_VOL_BRICK "brick"
#define GLUSTERD_STORE_KEY_VOL_VERSION "version"
#define GLUSTERD_STORE_KEY_VOL_TRANSPORT "transport-type"
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 1a1a3b10c06..fbe82e38940 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -547,6 +547,7 @@ glusterd_volinfo_dup (glusterd_volinfo_t *volinfo,
new_volinfo->type = volinfo->type;
new_volinfo->replica_count = volinfo->replica_count;
+ new_volinfo->arbiter_count = volinfo->arbiter_count;
new_volinfo->stripe_count = volinfo->stripe_count;
new_volinfo->disperse_count = volinfo->disperse_count;
new_volinfo->redundancy_count = volinfo->redundancy_count;
@@ -2235,6 +2236,12 @@ glusterd_add_volume_to_dict (glusterd_volinfo_t *volinfo,
goto out;
memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s%d.arbiter_count", prefix, count);
+ ret = dict_set_int32 (dict, key, volinfo->arbiter_count);
+ if (ret)
+ goto out;
+
+ memset (key, 0, sizeof (key));
snprintf (key, sizeof (key), "%s%d.disperse_count", prefix, count);
ret = dict_set_int32 (dict, key, volinfo->disperse_count);
if (ret)
@@ -3311,6 +3318,16 @@ glusterd_import_volinfo (dict_t *peer_data, int count,
GD_MSG_DICT_GET_FAILED,
"peer is possibly old version");
+ /* not having a 'arbiter_count' key is not a error
+ (as peer may be of old version) */
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s%d.arbiter_count", prefix, count);
+ ret = dict_get_int32 (peer_data, key, &new_volinfo->arbiter_count);
+ if (ret)
+ gf_msg (THIS->name, GF_LOG_INFO, 0,
+ GD_MSG_DICT_GET_FAILED,
+ "peer is possibly old version");
+
/* not having a 'disperse_count' key is not a error
(as peer may be of old version) */
memset (key, 0, sizeof (key));