cli: print volume status client output for partial bricks

In cli the response dictionary is parsed assuming all the bricks to be up.
If in a given cluster one of the node is down client details for the
bricks hosted by the same node are not available in the dictionary resulting
into a blank output for 'gluster volume status <volname> clients'

Fix is to ignore the ret value for dict_get for those keys.

Change-Id: If4fb65b8807ea3ac71b3ed1a754ea75f599e3613
BUG: 1351880
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-on: http://review.gluster.org/14842
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

1 files changed, 17 insertions, 20 deletions

diff --git a/cli/src/cli-rpc-ops.c b/cli/src/cli-rpc-ops.c
index 25b1ccdd9cd..2d9c0a954b8 100644
--- a/cli/src/cli-rpc-ops.c
+++ b/cli/src/cli-rpc-ops.c
@@ -6950,29 +6950,33 @@ cli_print_volume_status_clients (dict_t *dict, gf_boolean_t notbrick)
         index_max = brick_index_max + other_count;
 
         for (i = 0; i <= index_max; i++) {
+                hostname = NULL;
+                path = NULL;
+                online = -1;
+                client_count = 0;
+                clientname = NULL;
+                bytesread = 0;
+                byteswrite = 0;
+
                 cli_out ("----------------------------------------------");
 
                 memset (key, 0, sizeof (key));
                 snprintf (key, sizeof (key), "brick%d.hostname", i);
                 ret = dict_get_str (dict, key, &hostname);
-                if (ret)
-                        goto out;
+
                 memset (key, 0, sizeof (key));
                 snprintf (key, sizeof (key), "brick%d.path", i);
                 ret = dict_get_str (dict, key, &path);
-                if (ret)
-                        goto out;
-
-                if (notbrick)
-                        cli_out ("%s : %s", hostname, path);
-                else
-                        cli_out ("Brick : %s:%s", hostname, path);
 
+                if (hostname && path) {
+                        if (notbrick)
+                                cli_out ("%s : %s", hostname, path);
+                        else
+                                cli_out ("Brick : %s:%s", hostname, path);
+                }
                 memset (key, 0, sizeof (key));
                 snprintf (key, sizeof (key), "brick%d.status", i);
                 ret = dict_get_int32 (dict, key, &online);
-                if (ret)
-                        goto out;
                 if (!online) {
                         if (notbrick)
                                 cli_out ("%s is offline", hostname);
@@ -6984,10 +6988,9 @@ cli_print_volume_status_clients (dict_t *dict, gf_boolean_t notbrick)
                 memset (key, 0, sizeof (key));
                 snprintf (key, sizeof (key), "brick%d.clientcount", i);
                 ret = dict_get_int32 (dict, key, &client_count);
-                if (ret)
-                        goto out;
 
-                cli_out ("Clients connected : %d", client_count);
+                if (hostname && path)
+                        cli_out ("Clients connected : %d", client_count);
                 if (client_count == 0)
                         continue;
 
@@ -7000,22 +7003,16 @@ cli_print_volume_status_clients (dict_t *dict, gf_boolean_t notbrick)
                         snprintf (key, sizeof (key),
                                   "brick%d.client%d.hostname", i, j);
                         ret = dict_get_str (dict, key, &clientname);
-                        if (ret)
-                                goto out;
 
                         memset (key, 0, sizeof (key));
                         snprintf (key, sizeof (key),
                                   "brick%d.client%d.bytesread", i, j);
                         ret = dict_get_uint64 (dict, key, &bytesread);
-                        if (ret)
-                                goto out;
 
                         memset (key, 0, sizeof (key));
                         snprintf (key, sizeof (key),
                                  "brick%d.client%d.byteswrite", i, j);
                         ret = dict_get_uint64 (dict, key, &byteswrite);
-                        if (ret)
-                                goto out;
 
                         cli_out ("%-48s %15"PRIu64" %15"PRIu64,
                                  clientname, bytesread, byteswrite);