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Merge pull request #1608 from redis/DOC-1085
DOC-1085: Add links to terminology page sections
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content/operate/rs/references/terminology.md

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@@ -15,7 +15,7 @@ Here are explanations of some of the terms used in Redis Enterprise Software.
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A _node_ is a physical machine, virtual machine, container or cloud
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instance on which the RS installation package was installed and the
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setup process was run in order to make the machine part of the cluster.
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[setup process]({{< relref "/operate/rs/clusters/new-cluster-setup" >}}) was run in order to make the machine part of the cluster.
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Each node is a container for running multiple Redis
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instances, referred to as "shards".
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which helps to achieve high availability.
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A node is made up of several components, as detailed below, and works
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together with the other cluster nodes.
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together with the other cluster nodes. You can [add nodes]({{< relref "/operate/rs/clusters/add-node" >}}), [remove nodes]({{< relref "/operate/rs/clusters/remove-node" >}}), or [replace nodes]({{< relref "/operate/rs/clusters/replace-node" >}}) as needed.
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## Redis instance (shard)
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- **Standard Redis database** - A single Redis shard with no
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replication or clustering.
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- **Highly available Redis database** - Every database master shard
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- [**Highly available Redis database**]({{< relref "/operate/rs/databases/durability-ha/replication" >}}) - Every database master shard
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has a replica shard, so that if the master shard fails the
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cluster can automatically fail over to the replica with minimal impact. Master and replica shards are always placed on separate
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nodes to ensure high availability.
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- **Clustered Redis database** - The data stored in the database is
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- [**Clustered Redis database**]({{< relref "/operate/rs/databases/durability-ha/clustering" >}}) - The data stored in the database is
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split across several shards. The number of shards can be defined by
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the user. Various performance optimization algorithms define where
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shards are placed within the cluster. During the lifetime of the
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cluster, these algorithms might migrate a shard between nodes.
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cluster, these algorithms might [migrate a shard]({{< relref "/operate/rs/databases/migrate-shards" >}}) between nodes.
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- **Clustered and highly available Redis database** - Each master shard
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in the clustered database has a replica shard, enabling failover if
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the master shard fails.
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You can configure [shard placement]({{< relref "/operate/rs/databases/configure/shard-placement" >}}) to optimize performance and availability.
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## Proxy
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Each node includes one zero-latency, multi-threaded proxy
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high-throughput and low-latency performance, the proxy might use
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instruction pipelining even if not instructed to do so by the client.
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You can configure [proxy policies]({{< relref "/operate/rs/databases/configure/proxy-policy" >}}) to determine which nodes' proxies are active and bound to databases.
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## Database endpoint
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Each database is served by a database endpoint that is part of and
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Each database is served by a [database endpoint]({{< relref "/operate/rs/databases/connect/test-client-connectivity" >}}) that is part of and
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managed by the proxies. The endpoint oversees forwarding Redis
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operations to specific database shards.
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one master endpoint acts as the master endpoint for all master shards,
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forwarding Redis operations to all shards as needed.
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For high availability, you can configure [private and public endpoints]({{< relref "/operate/rs/networking/private-public-endpoints" >}}) for your databases.
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## Cluster manager
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The cluster manager oversees all node management-related tasks, and the
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- Monitoring databases and endpoints across all nodes
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- Running the database resharding process
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- Running the database provisioning and de-provisioning processes
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- Gathering operational statistics
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- Enforcing license and subscription limitations
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- Gathering [operational statistics]({{< relref "/operate/rs/monitoring" >}})
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- Enforcing [license and subscription limitations]({{< relref "/operate/rs/clusters/configure/license-keys" >}})
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You can manage your Redis Enterprise Software clusters using the [Cluster Manager UI]({{< relref "/operate/rs/clusters/configure" >}}), [command-line tools]({{< relref "/operate/rs/references/cli-utilities" >}}), or the [REST API]({{< relref "/operate/rs/references/rest-api" >}}).
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