noeviction: New values aren’t saved when memory limit is reached.The exact behavior Redis follows when the maxmemory limit is reached isĬonfigured using the maxmemory-policy configuration directive. Specified limit every time new data is added. Redis can return errors for commands that could result in more memoryīeing used, or it can evict some old data to return back to the When the specified amount of memory is reached, how eviction policies are configured determines the default behavior. This is theĭefault behavior for 64 bit systems, while 32 bit systems use an implicit Setting maxmemory to zero results into no memory limits. Set the configuration directive using the nf file, or later usingįor example, to configure a memory limit of 100 megabytes, you can use theįollowing directive inside the nf file: maxmemory 100mb To use a specified amount of memory for the data set. The maxmemory configuration directive configures Redis It also extensively covers the LRU eviction algorithm used by Redis, which is actually an approximation of This page covers the more general topic of the Redis maxmemory directive used to limit the memory usage to a fixed amount. This behavior is well known in theĭeveloper community, since it is the default behavior for the popular When Redis is used as a cache, it is often convenient to let it automaticallyĮvict old data as you add new data. Overview of Redis key eviction policies (LRU, LFU, etc.)
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