---
title:  Partitioned Regions
---

<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->

In addition to basic region management, partitioned regions include options for high availability, data location control, and data balancing across the distributed system.

-   **[Understanding Partitioning](how_partitioning_works.html)**

    To use partitioned regions, you should understand how they work and your options for managing them.

-   **[Configuring Partitioned Regions](managing_partitioned_regions.html)**

    Plan the configuration and ongoing management of your partitioned region for host and accessor members and configure the regions for startup.

-   **[Configuring the Number of Buckets for a Partitioned Region](configuring_bucket_for_pr.html)**

    Decide how many buckets to assign to your partitioned region and set the configuration accordingly.

-   **[Custom-Partitioning and Colocating Data](overview_custom_partitioning_and_data_colocation.html)**

    You can customize how <%=vars.product_name_long%> groups your partitioned region data with custom partitioning and data colocation.

-   **[Configuring High Availability for Partitioned Regions](overview_how_pr_ha_works.html)**

    By default, <%=vars.product_name_long%> stores only a single copy of your partitioned region data among the region's data stores. You can configure <%=vars.product_name%> to maintain redundant copies of your partitioned region data for high availability.

-   **[Configuring Single-Hop Client Access to Server-Partitioned Regions](overview_how_pr_single_hop_works.html)**

    Single-hop data access enables the client pool to track where a partitioned region’s data is hosted in the servers. To access a single entry, the client directly contacts the server that hosts the key, in a single hop.

-   **[Rebalancing Partitioned Region Data](rebalancing_pr_data.html)**

    In a distributed system with minimal contention to the concurrent threads reading or updating from the members, you can use rebalancing to dynamically increase or decrease your data and processing capacity.

-   **[Checking Redundancy in Partitioned Regions](checking_region_redundancy.html)**

    Under some circumstances, it can be important to verify that your partitioned region data is redundant and that upon member restart, redundancy has been recovered properly across partitioned region members.

-   **[Moving Partitioned Region Data to Another Member](moving_partitioned_data.html)**

    You can use the `PartitionRegionHelper` `moveBucketByKey` and `moveData` methods to explicitly move partitioned region data from one member to another.


