增加堆大小后无法启动 Glassfish

我想增加 Glassfish 的堆大小。为此，我知道我可以达到 4GB：

java -Xmx4000M -version
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03-384-10M3425)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02-384, mixed mode)

我尝试在domain.xml文件中将-Xmx设置为2GB：

<jvm-options>-Xmx2000m</jvm-options>

但我收到以下错误：

asadmin> start-domain
Waiting for ... to start .Error starting domain ...
The server exited prematurely with exit code 1.
Before it died, it produced the following output:

Error occurred during initialization of VM
The size of the object heap + VM data exceeds the maximum representable size
launchctl bsexec failed: Inappropriate ioctl for device

使用 -v 选项启动命令会给出以下结果：

12 oct. 2011 11:46:34 com.sun.enterprise.admin.launcher.GFLauncherLogger info
INFO: JVM invocation command line:
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java
-XX:+UnlockDiagnosticVMOptions
-XX:MaxPermSize=512m
-XX:NewRatio=2
-XX:+CMSClassUnloadingEnabled
-Xmx2000m
-Xms1000m
...
12 oct. 2011 11:46:35 com.sun.enterprise.admin.launcher.GFLauncherLogger info
INFO: Successfully launched in 45 msec.
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
Command start-domain failed.

我发现了问题。由于某些我不明白的原因，命令中传递了“-d32”参数，要求以 32 位模式启动。添加时

<jvm-options>-d64</jvm-options>

在domain.xml 文件中，glassfish 启动。请注意，文件中默认不存在此选项。