火焰图里大部分都是invoke，jvm打印堆栈，为什么找不到详细的异常信息

[Serenagirl]

java项目主要是查询sql，启动之后tps抖动很大且性能很差，查询gc也频繁，看火焰图里getstackelement函数占了很多，都是在druidconnect连接的时候，猜测可能连接报异常了，但是查看日志，error.log是空的，tracelog文件夹里其他的日志也都搜索不到exception，error这些是为啥

[stale]

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