i18nsite opened a new issue, #3230: URL: https://github.com/apache/kvrocks/issues/3230
[English](#en) / [中文](#cn) <a id="en"></a> # Add Support for Hash Field Expiration Commands (HEXPIRE, HEXPIREAT, HGETEX, HPERSIST) ## Introduction Valkey 9.0 has introduced new commands for setting expiration times on individual hash fields: `HEXPIRE`, `HEXPIREAT`, `HGETEX`, and `HPERSIST`. These commands allow developers to set expiration times for individual fields independently, enabling finer-grained and more flexible cache control. This enhancement is particularly beneficial for user sessions, temporary data, or cache segmentation scenarios. According to the Valkey 9.0 release announcement (https://www.linuxmi.com/valkey-9-0.html), these new commands break previous limitations and provide more granular control over hash field expiration. ## Proposal I propose that Kvrocks should also implement these new commands to enhance its compatibility with Redis/Valkey and provide users with more advanced caching capabilities: 1. `HEXPIRE` - Set expiration time for a hash field with a TTL in seconds 2. `HEXPIREAT` - Set expiration time for a hash field with an absolute Unix timestamp 3. `HGETEX` - Get the value of a hash field and set its expiration time 4. `HPERSIST` - Remove expiration time from a hash field ## About Valkey Valkey is a drop-in replacement for Redis that maintains full compatibility while being developed under a truly open-source license (BSD). Major cloud providers including Alibaba, Huawei, Tencent, Amazon, Google, and Ericsson have joined the Valkey initiative. As noted in industry reports (https://mp.weixin.qq.com/s/6JY3Sl2pLBCLT6Ry1lPdHA), Valkey currently has 6 core maintainers from leading technology companies, ensuring robust community support and ongoing development. Furthermore, Arch Linux has officially deprecated Redis in favor of Valkey (https://mp.weixin.qq.com/s/yOBjPk1Gqsp2ljQB-3T0nA), highlighting the growing adoption of Valkey as the preferred Redis alternative. The primary reason for this shift is that Redis changed its license from BSD-3-Clause to RSALv2 and SSPLv1 on March 20, 2024, which many consider to no longer qualify as open-source software. Valkey, as a fork of Redis under the BSD license, represents a community-driven alternative promoted by major companies including Amazon, Google, and Oracle. Implementing these new hash expiration commands would position Kvrocks as a more complete Redis/Valkey-compatible solution, aligning with the direction of the broader open-source community. <a id="cn"></a> # 添加对哈希字段过期命令的支持 (HEXPIRE、HEXPIREAT、HGETEX、HPERSIST) ## 简介 Valkey 9.0 引入了新的命令来为单个哈希字段设置过期时间：`HEXPIRE`、`HEXPIREAT`、`HGETEX` 和 `HPERSIST`。这些命令允许开发人员独立地为各个字段设置过期时间，从而实现更精细和灵活的缓存控制。对于用户会话、临时数据或缓存细分等场景来说，这一增强功能尤其有益。 根据 Valkey 9.0 发布公告 (https://www.linuxmi.com/valkey-9-0.html)，这些新命令打破了之前的限制，提供了对哈希字段过期更精细的控制。 ## 建议 建议 Kvrocks 也实现这些新命令，以增强其与 Redis/Valkey 的兼容性，并为用户提供更高级的缓存功能： 1. `HEXPIRE` - 使用以秒为单位的 TTL 为哈希字段设置过期时间 2. `HEXPIREAT` - 使用绝对 Unix 时间戳为哈希字段设置过期时间 3. `HGETEX` - 获取哈希字段的值并设置其过期时间 4. `HPERSIST` - 移除哈希字段的过期时间 ## 关于 Valkey Valkey 是 Redis 的直接替代品，在保持完全兼容的同时采用真正的开源许可(BSD)进行开发。包括阿里、华为、腾讯、亚马逊、谷歌和爱立信在内的主要云提供商已加入 Valkey 倡议。 正如行业报告中所述 (https://mp.weixin.qq.com/s/6JY3Sl2pLBCLT6Ry1lPdHA)，Valkey 目前有 6 位来自领先技术公司的核心维护者，确保了强大的社区支持和持续的开发。 此外，Arch Linux 已正式弃用 Redis 转而支持 Valkey (https://mp.weixin.qq.com/s/yOBjPk1Gqsp2ljQB-3T0nA)，这突显了 Valkey 作为首选 Redis 替代品日益增长的采用率。 这种转变的主要原因是 Redis 在 2024 年 3 月 20 日将其许可证从 BSD-3-Clause 更改为 RSALv2 和 SSPLv1，许多人认为这不再符合开源软件的资格。Valkey 作为 BSD 许可证下的 Redis 分支，代表了由亚马逊、谷歌和甲骨文等大公司推动的社区驱动替代方案。 实现这些新的哈希过期命令将使 Kvrocks 成为更完整的 Redis/Valkey 兼容解决方案，与更广泛的开源社区发展方向保持一致。 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
