zebra: non pretty json output for evpn route

Currently, json output of evpn route command are no pretty format.
This is an extremely expensive operation at high VNI scale

EVPN json non-pretty command support added:

```
show evpn mac vni <vni-id> detail json
show evpn vni detail json
```

Ticket:#3513256
Issue:3513256

Testing: UT done

Signed-off-by: Sindhu Parvathi Gopinathan's <sgopinathan@nvidia.com>

diff --git a/zebra/zebra_vxlan.c b/zebra/zebra_vxlan.c
index 5178448ebcbe3f1f87d34844ef67162c86213794..50a7462d89cc93d93aa540344700365d76e257bb 100644 (file)
--- a/zebra/zebra_vxlan.c
+++ b/zebra/zebra_vxlan.c
@@ -3229,7 +3229,11 @@ void zebra_vxlan_print_macs_vni(struct vty *vty, struct zebra_vrf *zvrf,
 
        if (use_json) {
                json_object_object_add(json, "macs", json_mac);
-               vty_json(vty, json);
+               /*
+                * This is an extremely expensive operation at scale
+                * and non-pretty reduces memory footprint significantly.
+                */
+               vty_json_no_pretty(vty, json);
        }
 }
 
@@ -4014,8 +4018,12 @@ void zebra_vxlan_print_vnis_detail(struct vty *vty, struct zebra_vrf *zvrf,
                               void *))zl3vni_print_hash_detail,
                     &zes);
 
+       /*
+        * This is an extremely expensive operation at scale
+        * and non-pretty reduces memory footprint significantly.
+        */
        if (use_json)
-               vty_json(vty, json_array);
+               vty_json_no_pretty(vty, json_array);
 }
 
 /*