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Problem

Under this general category are memory-related problems (out of memory).

Every Kiuwan analysis step is executed as a forked process running in a JVM. That forked execution is run with some default memory parameters (min and max).

By default, forked JVM is configured to run with a maximum of 1024 Mb. If the analysis needs more memory, the execution will finish with this error.

The most common out-of-memory error messages are:

Caused by: java.lang.OutOfMemoryError: Java heap space

All of

them can be solved increasing the memory allocated to Kiuwan analysis.

GUI mode

If you are using Kiuwan Local Analyzer in GUI mode, a dialog will open indicating this error:

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Click Analyzer log to open a window where the log file (temp/agentGUI.log) is displayed

. You will see the following error message.

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You will find some lines as the following indicating that an Out of Memory error is produced.

WARN 2016-10-05 11:13:21,314 - Exception in thread "main" com.als.core.OptimythException: GC overhead limit exceeded

WARN 2016-10-05 11:13:21,316 - Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded

CLI mode

If you are using Kiuwan Local Analyzer in CLI mode, this error is reported to the standard output.

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An error code will be returned to the calling process.

Please visit Local Analyzer Return Codes

 for further

information on return codes.

Solution

The solution consists of providing more memory to Kiuwan.

You can do it in two ways: 

1. Change the memory parameters
2. Modify the conf/analyzer.properties file

Change the memory parameters

1. Click Advanced in the analysis configuration window
2. Select Analysis Configuration
3. Modify the Max memory size property (set by default to 1024 Mb)

1. 
   
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1. 
   
   
2. After modifying the value,

1. click Save

1. to open the next dialog

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1. Save = this configuration will apply only to the current applications.
   

1. Save as defaults = the configuration changes will apply to all the applications of your Kiuwan Local Analyzer installation.

Modify conf/analyzer.properties file

An alternative way to change this

memory value is by modifying the conf/analyzer.properties file.

To do it, edit “memory-max” property:

memory.max=1024m

If you have a specific configuration for an application and you want the change only to be applied to that specific application, you will need to modify this property in the conf/apps/<name_of_your_app>.properties file.

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