Make request_resources() use internal kv instead of redis pub sub (#13410)

python/ray/autoscaler/_private/commands.py

@@ -20,7 +20,7 @@ except ImportError:  # py2
     from pipes import quote
 
 import ray
-from ray.experimental.internal_kv import _internal_kv_get
+from ray.experimental.internal_kv import _internal_kv_get, _internal_kv_put
 import ray._private.services as services
 from ray.autoscaler.node_provider import NodeProvider
 from ray.autoscaler._private.constants import \
@@ -129,13 +129,13 @@ def request_resources(num_cpus: Optional[int] = None,
     """
     if not ray.is_initialized():
         raise RuntimeError("Ray is not initialized yet")
-    r = _redis()
     to_request = []
     if num_cpus:
         to_request += [{"CPU": 1}] * num_cpus
     if bundles:
         to_request += bundles
-    r.publish(AUTOSCALER_RESOURCE_REQUEST_CHANNEL, json.dumps(to_request))
+    _internal_kv_put(AUTOSCALER_RESOURCE_REQUEST_CHANNEL,
+                     json.dumps(to_request))
 
 
 def create_or_update_cluster(config_file: str,