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help wanted
Description
show @@processor 查看 FREE_BUFFER ，TOTAL_BUFFER 为何一直都是一个很大的数字343597383680 一直都没变，调整server.xml的相关参数也没有用？
Contributor guide
- Tech stack
- java
- Domain
- database
- Issue type
- bug
- DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
- 3
- Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
- half day
- Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
- stale
- ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
- needs investigation
- Prerequisites
- Understanding of Mycat buffer configurationBasic knowledge of Java
- Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
- 20
- Research direction
- The issue reports that FREE BUFFER and TOTAL BUFFER values remain constant at 343597383680 despite configuration changes. The research should start by examining the source code for the 'show @@processor' command, likely in the monitoring module. Look for buffer allocation logic and how FREE BUFFER and TOTAL BUFFER are computed. Also check the parsing of server.xml to ensure buffer parameters like processorBufferPool or similar are being read correctly. Review the user's configuration to understand what settings they changed. Finally, verify if there is a known bug or limitation in the buffer management code.