DOC-2944 DOC-3140 Added DB defaults for shard placement and proxy pol…

…icies

content/rs/databases/configure/db-defaults.md

@@ -109,3 +109,62 @@ To enable or turn off internode encryption by default, use one of the following
     PUT /v1/cluster/policy 
     { "data_internode_encryption": <boolean> }
     ```
+
+### Shard placement
+
+The default [shard placement policy]({{<relref "/rs/databases/memory-performance/shard-placement-policy">}}) determines the distribution of database shards across nodes in the cluster.
+
+To configure default shard placement, use one of the following methods:
+
+- [rladmin tune cluster]({{<relref "/rs/references/cli-utilities/rladmin/tune#tune-cluster">}}): 
+    
+    ```sh
+    rladmin tune cluster default_shards_placement { dense | sparse }
+    ```
+
+- [Update cluster policy]({{<relref "/rs/references/rest-api/requests/cluster/policy#put-cluster-policy">}}) REST API request:
+
+    ```sh
+    PUT /v1/cluster/policy 
+    { "default_shards_placement": "dense | sparse" }
+    ```
+
+### Proxy policies
+
+Redis Enterprise Software uses [proxies]({{<relref "/rs/references/terminology#proxy">}}) to manage and optimize access to database shards. Each node in the cluster runs a single proxy process, which can be active (receives incoming traffic) or passive (waits for failovers).
+
+Configure the following default [proxy policies]({{<relref "/rs/databases/configure/proxy-policy">}}) to determine which nodes' proxies are active and bound to new databases by default.
+
+#### Non-sharded proxy policy
+
+To configure the default proxy policy for non-sharded databases, use one of the following methods:
+
+- [rladmin tune cluster]({{<relref "/rs/references/cli-utilities/rladmin/tune#tune-cluster">}}): 
+    
+    ```sh
+    rladmin tune cluster default_non_sharded_proxy_policy { single | all-master-shards | all-nodes }
+    ```
+
+- [Update cluster policy]({{<relref "/rs/references/rest-api/requests/cluster/policy#put-cluster-policy">}}) REST API request:
+
+    ```sh
+    PUT /v1/cluster/policy 
+    { "default_non_sharded_proxy_policy": "single | all-master-shards | all-nodes" }
+    ```
+
+#### Sharded proxy policy
+
+To configure the default proxy policy for sharded databases, use one of the following methods:
+
+- [rladmin tune cluster]({{<relref "/rs/references/cli-utilities/rladmin/tune#tune-cluster">}}): 
+    
+    ```sh
+    rladmin tune cluster default_sharded_proxy_policy { single | all-master-shards | all-nodes }
+    ```
+
+- [Update cluster policy]({{<relref "/rs/references/rest-api/requests/cluster/policy#put-cluster-policy">}}) REST API request:
+
+    ```sh
+    PUT /v1/cluster/policy 
+    { "default_sharded_proxy_policy": "single | all-master-shards | all-nodes" }
+    ```

content/rs/references/cli-utilities/rladmin/tune.md

@@ -37,6 +37,9 @@ rladmin tune cluster
         [ expose_hostnames_for_all_suffixes { enabled | disabled } ]
         [ redis_upgrade_policy { latest | major } ]
         [ default_redis_version <value> ]
+        [ default_non_sharded_proxy_policy { single | all-master-shards | all-nodes } ]
+        [ default_sharded_proxy_policy { single | all-master-shards | all-nodes } ]
+        [ default_shards_placement { dense | sparse } ]
         [ data_internode_encryption { enabled | disabled } ]
         [ db_conns_auditing { enabled | disabled } ]
         [ acl_pubsub_default { resetchannels | allchannels } ]
@@ -51,7 +54,10 @@ rladmin tune cluster
 | data_internode_encryption              | `enabled`<br />`disabled`       | Activates or deactivates [internode encryption]({{<relref "/rs/security/encryption/internode-encryption">}}) for new databases    |
 | db_conns_auditing                      | `enabled`<br /> `disabled`      | Activates or deactivates [connection auditing]({{<relref "/rs/security/audit-events">}}) by default for new databases of a cluster                                                                  |
 | default_concurrent_restore_actions     | integer<br />`all`              | Default number of concurrent actions when restoring a node from a snapshot (positive integer or "all")                         |
+| default_non_sharded_proxy_policy | `single`<br /><nobr>`all-master-shards`</nobr><br />`all-nodes` | Default [proxy policy]({{<relref "/rs/databases/configure/proxy-policy">}}) for newly created non-sharded databases' endpoints |
 | default_redis_version                  | version number                    | The default Redis database compatibility version used to create new databases.<br/><br/>  The value parameter should be a version number in the form of "x.y" where _x_ represents the major version number and _y_ represents the minor version number.  The final value corresponds to the desired version of Redis.<br/><br/>You cannot set _default_redis_version_ to a value higher than that supported by the current _redis_upgrade_policy_ value. |
+| default_sharded_proxy_policy | `single`<br />`all-master-shards`<br />`all-nodes` | Default [proxy policy]({{<relref "/rs/databases/configure/proxy-policy">}}) for newly created sharded databases' endpoints |
+| default_shards_placement | `dense`<br />`sparse` | New databases place shards according to the default [shard placement policy]({{<relref "/rs/databases/memory-performance/shard-placement-policy">}}) |
 | expose_hostnames_for_all_suffixes      | `enabled`<br />`disabled`       | Exposes hostnames for all DNS suffixes                                                                                       |
 | failure_detection_sensitivity | `high`<br />`low` | Predefined thresholds and timeouts for failure detection (previously known as `watchdog_profile`)<br />• `high` (previously `local-network`) – high failure detection sensitivity, lower thresholds, faster failure detection and failover<br />• `low` (previously `cloud`) – low failure detection sensitivity, higher tolerance for latency variance (also called network jitter) |
 | login_lockout_counter_reset_after      | time in seconds                   | Time after failed login attempt before the counter resets to 0                                                                   |