[BUG] druid init method run slow : line895 this.createPhysicalConnection()

[lucky-lbc]

Database Type

mysql

Database Version

mysql8.0.31

Druid Version

1.2.23

JDK Version

jdk17

Error SQL

no sql
just spring boot init . and run in druid init() method. was slow

Testcase Code

No response

Stacktrace Info

No response

Error Info

druid init method was slow. debug this in line 895 method: this.createPhysicalConnection();

and in this method:

when line 1727: var29 = true; is slowly

i want to know why ?. and how to handle it

[lucky-lbc]

spring boot version 3.2.x

[lucky-lbc]

It may be a decompilation issue。debug var29 can step into .

i think that is slow line : Connection rawConn = this.getDriver().connect(url, info);

[lucky-lbc]

finally i found this slowly code :
class: ConnectionImpl . package com.mysql.cj.jdbc;
inetSocketAddress.getHostName()
It may be a DNS resolution issue。 but no idea to deal it ...