mgmt/glusterd: check the availability of fuse for few glusterd operations

Change-Id: I410cc6a86c32637566e5498f69f46cb40322e7fb
BUG: 2715
Reviewed-on: http://review.gluster.com/364
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amar@gluster.com>
Reviewed-by: Vijay Bellur <vijay@gluster.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
index f84dae17484..060d40bed9e 100644
--- a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
+++ b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
@@ -237,6 +237,7 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
         glusterd_peerinfo_t                     *peerinfo = NULL;
         glusterd_brickinfo_t                    *dst_brickinfo = NULL;
         gf_boolean_t                            is_run         = _gf_false;
+        dict_t                                  *ctx           = NULL;
 
         ret = dict_get_str (dict, "src-brick", &src_brick);
 
@@ -382,6 +383,20 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
                 goto out;
         }
 
+        ctx = glusterd_op_get_ctx();
+        if (ctx) {
+                if (!glusterd_is_fuse_available ()) {
+                        gf_log ("glusterd", GF_LOG_ERROR, "Unable to open /dev/"
+                                "fuse (%s), replace-brick command failed",
+                                strerror (errno));
+                        snprintf (msg, sizeof(msg), "Fuse unavailable\n "
+                                "Replace-brick failed");
+                        *op_errstr = gf_strdup (msg);
+                        ret = -1;
+                        goto out;
+                }
+        }
+
         if (!glusterd_is_local_addr (src_brickinfo->hostname)) {
                 gf_log ("", GF_LOG_DEBUG,
                         "I AM THE SOURCE HOST");