weblogic中java.lang.OutOfMemoryError 内存溢出解决方式

忘是亡心i 2022-04-24 12:22 910阅读 0赞

一：WebLogic配置问题：  
由于WebLogic的配置问题，我们的测试出现了失败情况。原因是为WebLogic分配的内存太少了。通过修改commom/bin/commEnv.cmd文件来增加内存分配。  
修改的部分如下：

:sun  
if "%PRODUCTION\_MODE%" == "true" goto sun\_prod\_mode  
set JAVA\_VM=-client  
set MEM\_ARGS=-Xms768m -Xmx1024m -XX:MaxPermSize=256m  
set JAVA\_OPTIONS=%JAVA\_OPTIONS% -Xverify:none  
goto continue  
:sun\_prod\_mode  
set JAVA\_VM=-server  
set MEM\_ARGS=-Xms768m -Xmx1024m -XX:MaxPermSize=256m  
goto continue

二、造成内存溢出的原因，大数据量的导出，多一次点击导出按钮，导致多次执行查询，内存中超过了十万多条数据，以至于内存溢出，无法连接数据量连接池。

WARN \#0553 was active for 319688 milliseconds and has been removed automaticaly. The Thread responsible was named '\[ACTIVE\] ExecuteThread: '6' for queue: 'weblogic.kernel.Default (self-tuning)'', and the last SQL it performed is '\{ call SEL\_CUST\_YWYX2 ('0064','20170101','20190331','','','617802',7,'3577','','or','导出',50000,0,?,?,?,?) \}; '.

WARN \#0549 was active for 307812 milliseconds and has been removed automaticaly. The Thread responsible was named '\[ACTIVE\] ExecuteThread: '5' for queue: 'weblogic.kernel.Default (self-tuning)'', and the last SQL it performed is '\{ call SEL\_CUST\_YWYX2 ('0064','20170101','20190331','','','617802',7,'3577','','or','导出',50000,0,?,?,?,?) \}; '.

三、解决方案如下：

1、控制按钮，30秒内只能点击一次，防止多次点击；  
2、增加JVM内存大小；  
3、代码中清除list和map等释放内存空间。