taosdata/TDengine

Is it possible to set the rocksdb options `max_log_file_size/keep_log_file_num`

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#32,930 创建于 2025年9月9日

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help wantedquestion

描述

I don't need the LOG files which are created here e.g. /var/lib/taos/vnode/vnode4/tq/stream/0x5940669214c1bdd8-0x1d3c08c2/state/LOG as they are getting really large > 1 GB.

I think with the two options max_log_file_size/keep_log_file_num of rocksdb i could limit the size. Is there a way to set both these options?

贡献者指南

技术栈
c
领域
databasebackend
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Basic knowledge of RocksDB
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
The issue requests the ability to configure RocksDB options max log file size and keep log file num. The current codebase likely initializes RocksDB with default options. To implement this, one needs to examine the RocksDB initialization code in the TDengine source, likely in files under `src/` or `plugins/` directories. Look for where `rocksdb::Options` or similar structures are set. There may be an existing configuration mechanism that can be extended. If not, a new configuration parameter or environment variable can be added. Additionally, review the RocksDB documentation for these options to understand how to pass them to `DB::Open`.