datafusion-contrib / datafusion-contrib/liquid-cache

LiquidCache decide which batch to evict from memory

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#69 3 comments 0 reactions 1 assignee View on GitHub

@nikhilanayak is already working on this.

Since Mar 3, 2025.

epic help wanted
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Description

Currently we implements a max cache size on the server side. When cache is full, it stops taking new values: https://github.com/XiangpengHao/datafusion-cache/blob/main/src/liquid_parquet/src/cache/mod.rs#L312

We should implement a cache replacement algorithm that will evict the least recently accessed columns to make space for new entries.

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