Pentaho data-integration Spoon.bat 启动异常 java virtual machine launcher

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本文记录了在Win7 32位系统上使用Kettle时遇到的内存不足问题及解决过程。通过调整JVM参数，成功解决了由于32位JDK内存限制导致的Kettle Spoon无法启动的问题。

运行环境是 win7 32位，jdk版本是1.7。

使用SpoonDebug.bat写的日志信息是：

DEBUG: Using JAVA_HOME
DEBUG: _PENTAHO_JAVA_HOME=C:\Program Files\Java\jdk1.7.0_79
DEBUG: _PENTAHO_JAVA=C:\Program Files\Java\jdk1.7.0_79\bin\java.exe

D:\software\kettle\data-integration>"C:\Program Files\Java\jdk1.7.0_79\bin\java.exe" "-Xms1024m" "-Xmx1500m" "-XX:MaxPermSize=256m" "-Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2" "-Djava.library.path=libswt\win32" "-DKETTLE_HOME=D:\software\kettle\data-integration" "-DKETTLE_REPOSITORY=" "-DKETTLE_USER=" "-DKETTLE_PASSWORD=" "-DKETTLE_PLUGIN_PACKAGES=" "-DKETTLE_LOG_SIZE_LIMIT=" "-DKETTLE_JNDI_ROOT=" -jar launcher\pentaho-application-launcher-6.0.0.0-353.jar -lib ..\libswt\win32 /level:Debug
Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

标蓝色的地方应该是本机的JVM环境"-Xms1024m" "-Xmx1500m" "-XX:MaxPermSize=256m"

而在Spoon.bat中启动需要的环境是"-Xms1024m" "-Xmx2048m" "-XX:MaxPermSize=256m"

经高人指点，将Spoon.bat中

if "%PENTAHO_DI_JAVA_OPTIONS%"=="" set PENTAHO_DI_JAVA_OPTIONS="-Xms1024m" "-Xmx2048m" "-XX:MaxPermSize=256m" 修改的小一些就可以启动了。

具体原因可能是32位的JDK可使用的最大内存的限制。kettle官网http://wiki.pentaho.com/display/EAI/A+guide+to+setting+up+PDI+in+a+Microsoft+client-server+style+environment 提示信息（the limit for 32-bit JVM is around 1583)