對系統做壓力測試時經常出現以下問題,測試就不通過.
We are already in the process of making 6 connections and the number of simultaneous builds has be
en throttled to 5
en throttled to 5
但在400個用戶時沒有很問題.一超過400就會有40來個錯誤,,,查看系統記錄,發現了上面的問題.
查了一個官方的資料,問題解決了!
In http://proxool.sourceforge.net/properties.html is Say:
simultaneous-build-throttle:
This is the maximum number of connections we can be building at any one time. That is, the number of new connections that have been requested but aren’t yet available for use. Because connections can be built using more than one thread (for instance, when they are built on demand) and it takes a finite time between deciding to build the connection and it becoming available we need some way of ensuring that a lot of threads don’t all decide to build a connection at once. (We could solve this in a smarter way – and indeed we will one day) Default is 10.
把
<simultaneous-build-throttle>5</simultaneous-build-throttle>
改成
<simultaneous-build-throttle>20</simultaneous-build-throttle>
問題就不再出現了!