cli: Add an option to fetch just incremental or cumulative I/0

information

'volume profile info' fetches both cumulative and incremental
I/O statistics. There isn't a way to fetch just cumulative or
incremental statistics.

This change introduces two optional arguments, namely "incremental"
and "cumulative", that can be tacked on to 'volume profile info'.
In other words, the new command format is

volume profile <VOLNAME> {start | info [incremental | cumulative]
| stop} [nfs]

'volume profile info incremental' - fetches incremental stats
'volume profile info cumulative' - fetches cumulative stats
'volume profile info' - fetches incremental and cumulative stats

Change-Id: I5ddb45d990542ea611d23d251efebfec46f472d0
BUG: 1030580
Signed-off-by: Dawit Alemu <dalemu@redhat.com>
Reviewed-on: http://review.gluster.org/6264
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>

4 files changed, 28 insertions, 10 deletions

diff --git a/cli/src/cli-cmd-parser.c b/cli/src/cli-cmd-parser.c
index 88fbf96ff..de980b279 100644
--- a/cli/src/cli-cmd-parser.c
+++ b/cli/src/cli-cmd-parser.c
@@ -1988,7 +1988,7 @@ cli_cmd_volume_profile_parse (const char **words, int wordcount,
         if (!dict)
                 goto out;
 
-        if (wordcount < 4 || wordcount >5)
+        if (wordcount < 4)
                 goto out;
 
         volname = (char *)words[2];
@@ -2002,12 +2002,30 @@ cli_cmd_volume_profile_parse (const char **words, int wordcount,
                 ret = -1;
                 goto out;
         }
+
+        if ((strcmp (w, "start") == 0 || strcmp (w, "stop") == 0) &&
+            wordcount > 5)
+                goto out;
+
+        if (strcmp (w, "info") == 0 && wordcount > 6)
+                goto out;
+
         if (strcmp (w, "start") == 0) {
                 op = GF_CLI_STATS_START;
         } else if (strcmp (w, "stop") == 0) {
                 op = GF_CLI_STATS_STOP;
         } else if (strcmp (w, "info") == 0) {
                 op = GF_CLI_STATS_INFO;
+                if (wordcount > 4) {
+                        if (strcmp (words[4], "incremental") == 0) {
+                                op = GF_CLI_STATS_INFO_INCREMENTAL;
+                        } else if (strcmp (words[4], "cumulative") == 0) {
+                                op = GF_CLI_STATS_INFO_CUMULATIVE;
+                        }
+                }
+                ret = dict_set_int32 (dict, "info-op", op);
+                if (ret)
+                        goto out;
         } else
                 GF_ASSERT (!"opword mismatch");
 
@@ -2015,12 +2033,10 @@ cli_cmd_volume_profile_parse (const char **words, int wordcount,
         if (ret)
                 goto out;
 
-        if (wordcount == 5) {
-                if (!strcmp (words[4], "nfs")) {
-                        ret = dict_set_int32 (dict, "nfs", _gf_true);
-                        if (ret)
-                                goto out;
-                }
+        if (!strcmp (words[wordcount - 1], "nfs")) {
+                ret = dict_set_int32 (dict, "nfs", _gf_true);
+                if (ret)
+                        goto out;
         }
 
         *options = dict;
diff --git a/cli/src/cli-cmd-volume.c b/cli/src/cli-cmd-volume.c
index 22bf66b4f..f11fa21db 100644
--- a/cli/src/cli-cmd-volume.c
+++ b/cli/src/cli-cmd-volume.c
@@ -2299,7 +2299,7 @@ struct cli_cmd volume_cmds[] = {
          cli_cmd_check_gsync_exists_cbk},
 #endif
 
-         { "volume profile <VOLNAME> {start|stop|info [nfs]}",
+         { "volume profile <VOLNAME> {start | info [incremental | cumulative] | stop} [nfs]",
            cli_cmd_volume_profile_cbk,
            "volume profile operations"},
 
diff --git a/cli/src/cli-rpc-ops.c b/cli/src/cli-rpc-ops.c
index 3d2f90c04..2cb0ba3d4 100644
--- a/cli/src/cli-rpc-ops.c
+++ b/cli/src/cli-rpc-ops.c
@@ -4976,6 +4976,8 @@ gf_cli_profile_volume_cbk (struct rpc_req *req, struct iovec *iov,
                                  (rsp.op_ret) ? "unsuccessful": "successful");
                         break;
                 case GF_CLI_STATS_INFO:
+                case GF_CLI_STATS_INFO_INCREMENTAL:
+                case GF_CLI_STATS_INFO_CUMULATIVE:
                         break;
                 default:
                         cli_out ("volume profile on %s has been %s ",
@@ -4990,7 +4992,7 @@ gf_cli_profile_volume_cbk (struct rpc_req *req, struct iovec *iov,
                 goto out;
         }
 
-        if (op != GF_CLI_STATS_INFO) {
+        if (op < GF_CLI_STATS_INFO || GF_CLI_STATS_INFO_CUMULATIVE < op) {
                 ret = 0;
                 goto out;
         }
diff --git a/cli/src/cli-xml-output.c b/cli/src/cli-xml-output.c
index 68d691114..2927ab1e4 100644
--- a/cli/src/cli-xml-output.c
+++ b/cli/src/cli-xml-output.c
@@ -2260,7 +2260,7 @@ cli_xml_output_vol_profile (dict_t *dict, int op_ret, int op_errno,
                                                "%d", op);
         XML_RET_CHECK_AND_GOTO (ret, out);
 
-        if (op != GF_CLI_STATS_INFO)
+        if (op < GF_CLI_STATS_INFO || GF_CLI_STATS_INFO_CUMULATIVE < op)
                 goto cont;
 
         ret = dict_get_int32 (dict, "count", &brick_count);