> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches.md).

# Configuring Caches

Configuring GridGain caches, including atomicity modes, cache groups, backups, data compression, expiry policies, data distribution, and on-heap caching.

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[Cache Configuration](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/configuration-overview.md)
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How to set GridGain cache configuration parameters, with a configuration example, the full parameter reference, and cache templates.
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[Configuring Partition Backups](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/configuring-backups.md)
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Configuring the number of partition backup copies for a GridGain cache and choosing between synchronous and asynchronous backup write modes.
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[Atomicity Modes](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/atomicity-modes.md)
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GridGain cache atomicity modes — ATOMIC, TRANSACTIONAL, and TRANSACTIONAL\_SNAPSHOT — and how to enable transactional support for a cache.
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[Expiry Policies](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/expiry-policies.md)
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Configuring expiry policies for GridGain caches, including eager TTL and resetting the expiration timeout with the touch operation.
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[On-Heap Caching](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/on-heap-caching.md)
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Enabling on-heap caching in GridGain and configuring on-heap eviction policies — LRU, FIFO, and Sorted — to manage the on-heap cache size.
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[Managing Data Distribution](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/managing-data-distribution.md)
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Controlling how GridGain distributes cache partitions across nodes using node filters, attribute-based filters, and backup filters.
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[Cache Groups](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/cache-groups.md)
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Using GridGain cache groups to share internal structures between caches, reducing memory usage and speeding up topology events in large deployments.
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[Data Compression](/docs/gridgain/gridgain-8/gridgain8-development/caches-and-memory/configuring-caches/data-compression.md)
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Dictionary-based cache data compression in GridGain using Zstandard or gzip, including configuration, ZSTD dictionary tuning, and limitations.
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