weblogic壓力測(cè)試中的性能調(diào)試手冊(cè)(已修改)
2025-06-17 19:44 本頁面
【正文】 Oracle數(shù)據(jù)庫設(shè)置1.【PGA】24－》602.【SGA】shared_pool_size=48,803.【SGA】高速緩存區(qū)：24,404.【SGA】java池：30－》0（8）－》1000.－》1000. Jar包設(shè)置：Log4j刪除日志，加“” SQL Weblogic設(shè)置 內(nèi)存大小 if %JAVA_VENDOR%==Sun ( set WLS_MEM_ARGS_64BIT=Xms256m Xmx512m set WLS_MEM_ARGS_32BIT=Xms256m Xmx1524m 域JTA 配置超時(shí)秒數(shù):360事務(wù)超時(shí)數(shù)100 服務(wù)器上資源的最大請(qǐng)求數(shù)（每個(gè)服務(wù)器所允許的最大并發(fā)資源請(qǐng)求數(shù)500）事務(wù)超時(shí)數(shù)100服務(wù)器:接受預(yù)備連接:600 域Web應(yīng)用程序設(shè)置 JDBC連接池域－》服務(wù)－》JDBC——》數(shù)據(jù)源連接池語句緩存大小 100不支持全局事務(wù)初始容量:5最大容量:100（已經(jīng)修改為500）容量增長:5收縮頻率:450語句超時(shí):1000非活動(dòng)連接超時(shí)100 部署監(jiān)視部署－》監(jiān)視－》JDBC Servers連接池配置服務(wù)－》JDBC－》數(shù)據(jù)源－》配置－》連接緩沖池 Server管理控制服務(wù)器－》AdminServer（管理）－》控制服務(wù)器－》AdminServer（管理） Java虛擬機(jī)內(nèi)存回收服務(wù)器－》AdminServer（管理）－》選中－》監(jiān)視－》性能－》垃圾回收內(nèi)存（Java 虛擬機(jī)內(nèi)存利用率統(tǒng)計(jì)信息） 監(jiān)視JDBC 監(jiān)視JTA 服務(wù)器參數(shù)調(diào)整（接受預(yù)備連接:600）服務(wù)器－》AdminServer（管理）－》選中－》調(diào)整 最長線程阻塞時(shí)間服務(wù)器－》AdminServer（管理）－》選中－》超載 BEA000449 Closing socket as no data read from itSet the parameter =XXX, in the startup script of the server which you are seeing this issue under JAVA_OPTIONS Note: Where XXX is the value in ms.Example:=500Server Protocols (tab) HTTP (subtab) Duration（持續(xù)時(shí)間） BEA310003 Free memory in the server... There is danger of OutOfMemoryErrorThanks 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 I39。m using the IBM AIX JVM. WebLogic can39。t tell when IBM39。s 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 samples can39。t drag the value over the 5% limit, I am much less likely to get an alert.The navigati
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