taosdata/TDengine

the first time connection to TDengine failed，second time work

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#24,069 opened on Dec 14, 2023

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Description

使用druid，每过5、6分钟，第一次连接TDengine就不行，要第二次才可以，查看druid发现连接池是空的，MySQL没这个问题，这是为啥呢？下面是我的druid配置 59174fcc77f8e67faca02fb7cde9f2a

Contributor guide

Research direction
Investigate the connection timeout or keepalive settings in the TDengine client and how they interact with the Druid connection pool. Check if the first connection fails due to lazy initialization or timeout that is remedied on retry.
Tech stack
cjava
Domain
backenddatabase
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JavaC
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40