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authorPranith Kumar K <pranithk@gluster.com>2012-11-06 12:18:24 +0530
committerVijay Bellur <vbellur@redhat.com>2012-11-23 23:14:50 -0800
commit7c23a94516c5dd21536c259f323a3cc113fdfa0d (patch)
tree36c0efc8a3bbd4976ae56d8e5fff1cccbcef9c93 /xlators/mgmt/glusterd/src/glusterd-store.c
parent76a4afec6e03d15cb442e819f6fe7b94d6f9f487 (diff)
mgmt/glusterd: Implementation of server-side quorum
Feature-page: http://www.gluster.org/community/documentation/index.php/Features/Server-quorum Change-Id: I747b222519e71022462343d2c1bcd3626e1f9c86 BUG: 839595 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.org/3811 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-store.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.c118
1 files changed, 111 insertions, 7 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
index 6fa490e47d5..471a24e6622 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.c
+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
@@ -1908,10 +1908,13 @@ glusterd_store_iter_destroy (glusterd_store_iter_t *iter)
{
int32_t ret = -1;
- GF_ASSERT (iter);
- GF_ASSERT (iter->fd > 0);
+ if (!iter)
+ return 0;
- ret = fclose (iter->file);
+ if (iter->file)
+ ret = fclose (iter->file);
+ else
+ ret = 0;
if (ret) {
gf_log ("", GF_LOG_ERROR, "Unable to close fd: %d, ret: %d, "
@@ -2203,7 +2206,6 @@ glusterd_store_retrieve_node_state (char *volname)
ret = glusterd_store_handle_retrieve (path,
&volinfo->node_state_shandle);
-
if (ret)
goto out;
@@ -2215,6 +2217,7 @@ glusterd_store_retrieve_node_state (char *volname)
ret = glusterd_store_iter_get_next (iter, &key, &value, &op_errno);
if (ret)
goto out;
+
if (!strncmp (key, GLUSTERD_STORE_KEY_VOL_DEFRAG,
strlen (GLUSTERD_STORE_KEY_VOL_DEFRAG))) {
volinfo->defrag_cmd = atoi (value);
@@ -2440,6 +2443,102 @@ out:
return ret;
}
+inline void
+glusterd_store_set_options_path (glusterd_conf_t *conf, char *path, size_t len)
+{
+ snprintf (path, len, "%s/options", conf->workdir);
+}
+
+int
+_store_global_opts (dict_t *this, char *key, data_t *value, void *data)
+{
+ glusterd_store_handle_t *shandle = data;
+
+ glusterd_store_save_value (shandle->fd, key, (char*)value->data);
+ return 0;
+}
+
+int32_t
+glusterd_store_options (xlator_t *this, dict_t *opts)
+{
+ glusterd_store_handle_t *shandle = NULL;
+ glusterd_conf_t *conf = NULL;
+ char path[PATH_MAX] = {0};
+ int fd = -1;
+ int32_t ret = -1;
+
+ conf = this->private;
+ glusterd_store_set_options_path (conf, path, sizeof (path));
+
+ ret = glusterd_store_handle_new (path, &shandle);
+ if (ret)
+ goto out;
+
+ fd = glusterd_store_mkstemp (shandle);
+ if (fd <= 0) {
+ ret = -1;
+ goto out;
+ }
+
+ shandle->fd = fd;
+ dict_foreach (opts, _store_global_opts, shandle);
+ shandle->fd = 0;
+ ret = glusterd_store_rename_tmppath (shandle);
+ if (ret)
+ goto out;
+out:
+ glusterd_store_handle_destroy (shandle);
+ if (fd >=0 )
+ close (fd);
+ return ret;
+}
+
+int32_t
+glusterd_store_retrieve_options (xlator_t *this)
+{
+ char path[PATH_MAX] = {0};
+ glusterd_conf_t *conf = NULL;
+ glusterd_store_handle_t *shandle = NULL;
+ glusterd_store_iter_t *iter = NULL;
+ char *key = NULL;
+ char *value = NULL;
+ glusterd_store_op_errno_t op_errno = 0;
+ int ret = -1;
+
+ conf = this->private;
+ glusterd_store_set_options_path (conf, path, sizeof (path));
+
+ ret = glusterd_store_handle_retrieve (path, &shandle);
+ if (ret)
+ goto out;
+
+ ret = glusterd_store_iter_new (shandle, &iter);
+ if (ret)
+ goto out;
+
+ ret = glusterd_store_iter_get_next (iter, &key, &value, &op_errno);
+ while (!ret) {
+ ret = dict_set_dynstr (conf->opts, key, value);
+ if (ret) {
+ GF_FREE (key);
+ GF_FREE (value);
+ goto out;
+ }
+ GF_FREE (key);
+ key = NULL;
+ value = NULL;
+
+ ret = glusterd_store_iter_get_next (iter, &key, &value,
+ &op_errno);
+ }
+ if (op_errno != GD_STORE_EOF)
+ goto out;
+ ret = 0;
+out:
+ glusterd_store_iter_destroy (iter);
+ glusterd_store_handle_destroy (shandle);
+ return ret;
+}
int32_t
glusterd_store_retrieve_volumes (xlator_t *this)
@@ -2840,9 +2939,8 @@ glusterd_store_retrieve_peers (xlator_t *this)
(void) glusterd_store_iter_destroy (iter);
- args.mode = GD_MODE_SWITCH_ON;
ret = glusterd_friend_add (hostname, 0, state, &uuid,
- &peerinfo, 1, &args);
+ &peerinfo, 1, NULL);
GF_FREE (hostname);
if (ret)
@@ -2852,6 +2950,13 @@ glusterd_store_retrieve_peers (xlator_t *this)
glusterd_for_each_entry (entry, dir);
}
+ args.mode = GD_MODE_ON;
+ list_for_each_entry (peerinfo, &priv->peers, uuid_list) {
+ ret = glusterd_friend_rpc_create (this, peerinfo, &args);
+ if (ret)
+ goto out;
+ }
+
out:
if (dir)
closedir (dir);
@@ -2905,7 +3010,6 @@ glusterd_restore ()
goto out;
}
-
ret = glusterd_store_retrieve_volumes (this);
if (ret)
goto out;