Section 1 - Help Centre

This section provides useful help and tips over and above the formal support manual sections 2 through 18.

1.3 How do I modify the Java heap size of OBM or ACB?

Product Version: OBM/ACB: Pre 7.x.x.

Operating Systems: Windows/Mac OSX

Description: How do I modify the Java heap size of the OBM & ACB?

Table of Contents:

How to modify the Java heap size of the OBM

How to modify the Java heap size of the ACB

Instruction for OBM

To modify the Java heap size of OBM, you need to amend the following files:

For Windows:

```
${OBM-Install-Home}\config.ini
```
```
${OBM-Install-Home}\bin\RunOBC.bat
```

For Mac OS X:

```
${OBM-Install-Home}/config.ini
```
```
${OBM-Install-Home}/bin/RunOBC.sh
```

Please open "config.ini", "RunOBC.bat" or "RunOBC.sh" with a text editor and you should see entries as shown below:

config.ini:

app.system.ui.vm.opt.xms=128
app.system.ui.vm.opt.xmx=768
app.system.conf.language

RunOBC.bat:

...
SET JAVA_HOME=%APP_HOME%\jvm
SET JAVA_EXE=%JAVA_HOME%\bin\java.exe
SET JAVA_OPTS=-Xms128m -Xmx768m -Dsun.java2d.noddraw
...

RunOBC.sh:

...
JAVA_OPTS="-Xrs -Xms128m -Xmx768m"
CLASSPATH="$LIB_HOME:$LIB_HOME/obc.jar:$LIB_HOME/obc-lib.jar"
MAIN_CLASS=auac
...

The value 768 is the current Java heap size which by default is 768MB

Please amend the line by changing the default value to "1200", (or 1500 depending on the amount of free system memory available) so the line will appear similar to the example as follows:

config.ini (updated):

app.system.ui.vm.opt.xms=128
app.system.ui.vm.opt.xmx=1200
app.system.conf.language

RunOBC.bat (updated):

...
SET JAVA_HOME=%APP_HOME%\jvm
SET JAVA_EXE=%JAVA_HOME%\bin\java.exe
SET JAVA_OPTS=-Xms128m -Xmx1200m -Dsun.java2d.noddraw
...

RunOBC.sh (updated):

...
LIB_HOME=./bin
JAVA_OPTS="-Xrs -Xms128m -Xmx1200m"
CLASSPATH="$LIB_HOME:$LIB_HOME/obc.jar:$LIB_HOME/obc-lib.jar"
MAIN_CLASS=auac

Once done, please restart the OBM scheduler service

Instruction for ACB

To modify the Java heap size of ACB, you need to amend the following files:

For Windows:

${ACB-Install-Home}\config.ini
		${ACB-Install-Home}\bin\RunOBC.bat

For Mac OS X:

```
${ACB-Install-Home}/config.ini
```
```
${ACB-Install-Home}/bin/RunOBC.sh
```

Please open "config.ini" and "RunOBC.bat" with a text editor and you should see entries as shown below:

config.ini:

app.system.ui.vm.opt.xms=128
app.system.ui.vm.opt.xmx=768
app.system.conf.language

RunOBC.bat:

...
SET JAVA_HOME=%APP_HOME%\jvm
SET JAVA_EXE=%JAVA_HOME%\bin\java.exe
SET JAVA_OPTS=-Xms128m -Xmx768m -Dsun.java2d.noddraw
...

RunOBC.sh:

...
JAVA_OPTS="-Xrs -Xms128m -Xmx768m"
CLASSPATH="$LIB_HOME:$LIB_HOME/obc.jar:$LIB_HOME/obc-lib.jar"
MAIN_CLASS=auac
...

The value 128 and 768 is the current Java heap size which by default is 128MB and 768MB

Please amend the line by changing the default value to "1200", (or 1500 depending on the amount of free system memory available) so the line will appear similar to the example as follows:

config.ini:

app.system.ui.vm.opt.xms=128
app.system.ui.vm.opt.xmx=1200
app.system.conf.language

RunOBC.bat:

...
SET JAVA_HOME=%OBC_HOME%\jvm
SET JAVA_EXE=%JAVA_HOME%\bin\java.exe
SET JAVA_OPTS=-Xms128m -Xmx1200m -Dsun.java2d.noddraw
...

RunOBC.sh (updated):

...
LIB_HOME=./bin
JAVA_OPTS="-Xrs -Xms128m -Xmx1200m"
CLASSPATH="$LIB_HOME:$LIB_HOME/obc.jar:$LIB_HOME/obc-lib.jar"
MAIN_CLASS=auac

Once done, please restart the ACB scheduler service