| --- |
| title: Custom-Partitioning and Colocating Data |
| --- |
| |
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| |
| You can customize how <%=vars.product_name_long%> groups your partitioned region data with custom partitioning and data colocation. |
| |
| - **[Understanding Custom Partitioning and Data Colocation](custom_partitioning_and_data_colocation.html)** |
| |
| Custom partitioning and data colocation can be used separately or in conjunction with one another. |
| |
| - **[Standard Custom Partitioning](standard_custom_partitioning.html)** |
| |
| By default, <%=vars.product_name%> partitions each data entry into a bucket using a hashing policy on the key. Additionally, the physical location of the key-value pair is abstracted away from the application. You can change these policies for a partitioned region by providing a standard partition resolver that maps entries to a set of buckets called a partition. |
| |
| - **[Fixed Custom Partitioning](fixed_custom_partitioning.html)** |
| |
| By default, <%=vars.product_name%> partitions each data entry into a bucket using a hashing policy on the key. Additionally, the physical location of the key-value pair is abstracted away from the application. You can change these policies for a partitioned region by providing a fixed partition resolver that not only maps entries to a set of buckets called a partition, but also specifies which members host which data buckets. |
| |
| - **[Colocate Data from Different Partitioned Regions](colocating_partitioned_region_data.html)** |
| |
| By default, <%=vars.product_name%> allocates the data locations for a partitioned region independent of the data locations for any other partitioned region. You can change this policy for any group of partitioned regions, so that cross-region, related data is all hosted by the same member. |
| Colocation is required for some operations, |
| and it increases performance for others by reducing the number of data |
| accesses to entries that are hosted on other cluster members. |
| |