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Merge pull request #225809 from MSFTeegarden/patch-12
Added active geo-replication information for JSON
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articles/azure-cache-for-redis/cache-redis-modules.md

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@@ -6,7 +6,7 @@ author: flang-msft
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ms.author: franlanglois
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ms.service: cache
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ms.topic: conceptual
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ms.date: 07/26/2022
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ms.date: 03/02/2023
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ms.custom: template-concept
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|RedisTimeSeries | No | Yes | No |
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|RedisJSON | No | Yes | Yes |
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Currently, `RediSearch` is the only module that can be used concurrently with active geo-replication.
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> [!NOTE]
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> Currently, you can't manually load any modules into Azure Cache for Redis. Manually updating modules version is also not possible.
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>
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## Using modules with active geo-replication
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Only the `RediSearch` and `RedisJSON` modules can be used concurrently with [active geo-replication](cache-how-to-active-geo-replication.md).
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Using these modules, you can implement searches across groups of caches that are synchronized in an active-active configuration. Also, you can search JSON structures in your active-active configuration.
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## Client library support
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| **Data structure** | **Description** | **Example application**|
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| ---------------------|------------------------|-------------------------|
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| **Bloom and Cuckoo filters** | Tells you if an item is either (a) certainly not in a set or (b) potentially in a set. | Checking if an email has already been sent to a user|
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| **Bloom and Cuckoo filters** | Tells you if an item is either (a) definitely not in a set or (b) potentially in a set. | Checking if an email has already been sent to a user|
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|**Count-min sketch** | Determines the frequency of events in a stream | Counting how many times an IoT device reported a temperature under 0 degrees Celsius. |
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|**Top-k** | Finds the `k` most frequently seen items | Determine the most frequent words used in War and Peace. (for example, setting k = 50 will return the 50 most common words in the book) |
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|**Top-k** | Finds the `k` most frequently seen items | Determine the most frequent words used in War and Peace. (for example, setting k = 50 returns the 50 most common words in the book) |
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**Bloom and Cuckoo** filters are similar to each other, but each has a unique set of advantages and disadvantages that are beyond the scope of
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this documentation.

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