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authorKrishnan Parthasarathi <kparthas@redhat.com>2013-06-06 10:46:57 +0530
committerAnand Avati <avati@redhat.com>2013-06-10 12:20:05 -0700
commit214dccb317437dab5464456a4eb30c88444370e7 (patch)
treeb6a1912c99d10b61bc1b6b76a64067d70d4227f8 /cli/src
parent50ae4e3eee81b746df60ce723dfe1c5659fa6fba (diff)
glusterd: Add a cmd for getting uuid of local node
Usage: gluster system:: uuid get This is needed since we generate uuid of a node in a lazy manner. ie, we generate a uuid for the node only on the first volume or peer operation, when the node needs an external identity. With this command, we can force[1] the uuid generation, without a volume or peer operation performed. [1]: Querying for uuid (or uuid get), forces uuid to come into existence. Change-Id: I62c8b6754117756aa4d773dd48af4ddeb1a1d878 BUG: 971661 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5175 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
Diffstat (limited to 'cli/src')
-rw-r--r--cli/src/cli-cmd-system.c51
-rw-r--r--cli/src/cli-rpc-ops.c106
2 files changed, 157 insertions, 0 deletions
diff --git a/cli/src/cli-cmd-system.c b/cli/src/cli-cmd-system.c
index b969c22..f73758a 100644
--- a/cli/src/cli-cmd-system.c
+++ b/cli/src/cli-cmd-system.c
@@ -279,6 +279,53 @@ cli_cmd_umount_cbk (struct cli_state *state, struct cli_cmd_word *word,
}
int
+cli_cmd_uuid_get_cbk (struct cli_state *state, struct cli_cmd_word *word,
+ const char **words, int wordcount)
+{
+ int ret = -1;
+ int sent = 0;
+ int parse_error = 0;
+ dict_t *dict = NULL;
+ rpc_clnt_procedure_t *proc = NULL;
+ call_frame_t *frame = NULL;
+ cli_local_t *local = NULL;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ if (wordcount != 3) {
+ cli_usage_out (word->pattern);
+ parse_error = 1;
+ goto out;
+ }
+
+ proc = &cli_rpc_prog->proctable[GLUSTER_CLI_UUID_GET];
+ frame = create_frame (this, this->ctx->pool);
+ if (!frame)
+ goto out;
+
+ dict = dict_new ();
+ if (!dict)
+ goto out;
+
+ CLI_LOCAL_INIT (local, words, frame, dict);
+ if (proc->fn)
+ ret = proc->fn (frame, this, dict);
+
+out:
+ if (ret) {
+ cli_cmd_sent_status_get (&sent);
+ if ((sent == 0) && (parse_error == 0))
+ cli_out ("uuid get failed");
+ }
+
+ if (dict)
+ dict_unref (dict);
+
+ CLI_STACK_DESTROY (frame);
+ return ret;
+}
+
+int
cli_cmd_uuid_reset_cbk (struct cli_state *state, struct cli_cmd_word *word,
const char **words, int wordcount)
{
@@ -364,6 +411,10 @@ struct cli_cmd cli_system_cmds[] = {
cli_cmd_umount_cbk,
"request an umount"},
+ { "system:: uuid get",
+ cli_cmd_uuid_get_cbk,
+ "get uuid of glusterd"},
+
{ "system:: uuid reset",
cli_cmd_uuid_reset_cbk,
"reset the uuid of glusterd"},
diff --git a/cli/src/cli-rpc-ops.c b/cli/src/cli-rpc-ops.c
index a9f53bf..a89e6b7 100644
--- a/cli/src/cli-rpc-ops.c
+++ b/cli/src/cli-rpc-ops.c
@@ -993,6 +993,88 @@ out:
}
int
+gf_cli3_1_uuid_get_cbk (struct rpc_req *req, struct iovec *iov,
+ int count, void *myframe)
+{
+ char *uuid_str = NULL;
+ gf_cli_rsp rsp = {0,};
+ int ret = -1;
+ cli_local_t *local = NULL;
+ call_frame_t *frame = NULL;
+ dict_t *dict = NULL;
+
+ if (-1 == req->rpc_status)
+ goto out;
+
+ frame = myframe;
+
+ ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gf_cli_rsp);
+ if (ret < 0) {
+ gf_log (frame->this->name, GF_LOG_ERROR,
+ "Failed to decode xdr response");
+ goto out;
+ }
+
+ local = frame->local;
+ frame->local = NULL;
+
+ gf_log ("cli", GF_LOG_INFO, "Received resp to uuid get");
+
+ dict = dict_new ();
+ if (!dict) {
+ ret = -1;
+ goto out;
+ }
+
+ ret = dict_unserialize (rsp.dict.dict_val, rsp.dict.dict_len,
+ &dict);
+ if (ret) {
+ gf_log ("cli", GF_LOG_ERROR, "Failed to unserialize "
+ "response for uuid get");
+ goto out;
+ }
+
+ ret = dict_get_str (dict, "uuid", &uuid_str);
+ if (ret) {
+ gf_log ("cli", GF_LOG_ERROR, "Failed to get uuid "
+ "from dictionary");
+ goto out;
+ }
+
+ if (global_state->mode & GLUSTER_MODE_XML) {
+ ret = cli_xml_output_dict ("uuidGenerate", dict, rsp.op_ret,
+ rsp.op_errno, rsp.op_errstr);
+ if (ret)
+ gf_log ("cli", GF_LOG_ERROR,
+ "Error outputting to xml");
+ goto out;
+ }
+
+ if (rsp.op_ret) {
+ if (strcmp (rsp.op_errstr, "") == 0)
+ cli_err ("Get uuid was unsuccessful");
+ else
+ cli_err ("%s", rsp.op_errstr);
+
+ } else {
+ cli_out ("UUID: %s", uuid_str);
+
+ }
+ ret = rsp.op_ret;
+
+out:
+ cli_cmd_broadcast_response (ret);
+ cli_local_wipe (local);
+ if (rsp.dict.dict_val)
+ free (rsp.dict.dict_val);
+ if (dict)
+ dict_unref (dict);
+
+ gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret);
+ return ret;
+}
+
+int
gf_cli3_1_uuid_reset_cbk (struct rpc_req *req, struct iovec *iov,
int count, void *myframe)
{
@@ -2891,6 +2973,29 @@ out:
}
int32_t
+gf_cli3_1_uuid_get (call_frame_t *frame, xlator_t *this,
+ void *data)
+{
+ gf_cli_req req = {{0,}};
+ int ret = 0;
+ dict_t *dict = NULL;
+
+ if (!frame || !this || !data) {
+ ret = -1;
+ goto out;
+ }
+
+ dict = data;
+ ret = cli_to_glusterd (&req, frame, gf_cli3_1_uuid_get_cbk,
+ (xdrproc_t)xdr_gf_cli_req, dict,
+ GLUSTER_CLI_UUID_GET, this, cli_rpc_prog,
+ NULL);
+out:
+ gf_log ("cli", GF_LOG_DEBUG, "Returning %d", ret);
+ return ret;
+}
+
+int32_t
gf_cli3_1_uuid_reset (call_frame_t *frame, xlator_t *this,
void *data)
{
@@ -6762,6 +6867,7 @@ struct rpc_clnt_procedure gluster_cli_actors[GLUSTER_CLI_MAXVALUE] = {
[GLUSTER_CLI_DEPROBE] = {"DEPROBE_QUERY", gf_cli_deprobe},
[GLUSTER_CLI_LIST_FRIENDS] = {"LIST_FRIENDS", gf_cli_list_friends},
[GLUSTER_CLI_UUID_RESET] = {"UUID_RESET", gf_cli3_1_uuid_reset},
+ [GLUSTER_CLI_UUID_GET] = {"UUID_GET", gf_cli3_1_uuid_get},
[GLUSTER_CLI_CREATE_VOLUME] = {"CREATE_VOLUME", gf_cli_create_volume},
[GLUSTER_CLI_DELETE_VOLUME] = {"DELETE_VOLUME", gf_cli_delete_volume},
[GLUSTER_CLI_START_VOLUME] = {"START_VOLUME", gf_cli_start_volume},