weblogic压力测验中地性能调试手册.docVIP

Oracle数据库设置 1.【PGA】24－》60 2.【SGA】shared_pool_size=48,80 3.【SGA】高速缓存区：24,40 4.【SGA】java池：30－》0（8） 5.会话150－》1000. 6.游标300－》1000. Jar包设置： 1、Log4j删除日志，加“#” 2、DynamicDao删除system.Out SQL Weblogic设置 内存大小 setDomainEnv.cmd if %JAVA_VENDOR%==Sun ( set WLS_MEM_ARGS_64BIT=-Xms256m -Xmx512m set WLS_MEM_ARGS_32BIT=-Xms256m -Xmx1524m 域JTA 配置 超时秒数: 服务器上资源的最大请求数每个服务器所允许的最大并发资源请求数 服务器: 接受预备连接:600 域Web应用程序设置 JDBC连接池 域－》服务－》JDBC——》数据源 连接池 1、语句缓存大小 100 2、不支持全局事务 3、初始容量:5 4、最大容量:100（已经修改为500） 5、容量增长:5 6、收缩频率:450 7、语句超时:1000 8、非活动连接超时100 部署监视 部署－》监视－》JDBC Servers连接池配置 服务－》JDBC－》数据源－》配置－》连接缓冲池 Server管理控制 服务器－》AdminServer（管理）－》控制 服务器－》AdminServer（管理） Java虚拟机内存回收 服务器－》AdminServer（管理）－》选中－》监视－》性能－》垃圾回收内存（Java 虚拟机内存利用率统计信息 最长线程阻塞时间 服务器－》AdminServer（管理）－》选中－》超载 BEA-000449 Closing socket as no data read from it 1、Set the parameter -Dweblogic.client.socket.ConnectTimeout=XXX, in the start-up script of the server which you are seeing this issue under JAVA_OPTIONS Note: Where XXX is the value in ms. Example: -Dweblogic.client.socket.ConnectTimeout=500 2、Server - Protocols (tab) - HTTP (sub-tab) - Duration（持续时间） BEA-310003 Free memory in the server... There is danger of OutOfMemoryError Thanks for the Hint. I found that changing the Low Memory Sample Size from 10 to 120 solved my problem. When WebLogic uses JRockit, it know when the GC runs and cleans up memory. It samples the free heap at this time (because all of the garbage has been collected and memory is as empty as it is going to get) and if the average over the hour is 5% free, then you get an alert. Unfortunately Im using the IBM AIX JVM. WebLogic cant tell when IBMs JVM is doing a GC, so it just samples heap free at a regular intervals. Since there are only 10 samples (by default) in a hour, if it gets unlucky a few times you will get an out of memory alert when there is nothing to be worried about. I boosted the samples to 120/hour, so it gets a better picture of the amount of heap that is free on average. Now that a few bad sam