# 功能

- [Alluxio 命名空间和底层文件系统命名空间](/ee-ai-cn/ai-3.4/feature/alluxio-namespace-and-under-file-system-namespaces.md)
- [缓存预加载](/ee-ai-cn/ai-3.4/feature/cache-preloading.md)
- [Client 写回](/ee-ai-cn/ai-3.4/feature/client-writeback.md)
- [缓存驱逐](/ee-ai-cn/ai-3.4/feature/cache-evicting.md)
- [基于 TTL 的缓存驱逐](/ee-ai-cn/ai-3.4/feature/cache-evicting/ttl-cache-evicting.md)
- [基于优先级的缓存驱逐](/ee-ai-cn/ai-3.4/feature/cache-evicting/priority-eviction.md)
- [缓存过滤](/ee-ai-cn/ai-3.4/feature/cache-filter.md)
- [缓存释放](/ee-ai-cn/ai-3.4/feature/cache-free.md)
- [基于目录的集群配额](/ee-ai-cn/ai-3.4/feature/directory-based-quota.md)
- [文件多副本](/ee-ai-cn/ai-3.4/feature/file-replication.md)
- [文件分片](/ee-ai-cn/ai-3.4/feature/file-segmentation.md)
- [索引服务](/ee-ai-cn/ai-3.4/feature/index-service.md)
- [I/O弹性](/ee-ai-cn/ai-3.4/feature/io-resiliency.md)