Ulrich Kaiser created CXF-4867:
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Summary: Extensive memory usage when reading from CRM 2011
Key: CXF-4867
URL: https://issues.apache.org/jira/browse/CXF-4867
Project: CXF
Issue Type: Bug
Components: Core
Affects Versions: 2.7.3
Environment: Windows 7 Enterprise SP1, Java 1.6.0_37 (32 bit)
Reporter: Ulrich Kaiser
Hi there!
I have written a test program that reads entities from a Microsoft Dynamics CRM
2011 using CXF 2.7.3. The program was compiled and run as a runnable jar with
Java 1.6.0_37 (32 bit).
Now, when I run the program (in my case with the command line 'java.exe
-Xmx1600m -jar TestCXF.jar contact 2013-02-25') and look at the memory usage, I
do not understand why it needs so much memory (about 1.6 GB) for only 4 * 3099
records, even though the records are minimal (no attributes). The consequence
is that when I have to read more records (e. g. the target CRM has more than
50'000 contacts), I will get an OutOfMemoryError.
Furthermore, the test program finishes after four loops and releases its
memory. The actual productive program on the other hand is meant to run for
hours, so it would be very helpful to know how to free the memory, but calling
System.gc() or re-connecting to the CRM did not work.
Do you perhaps have an explanation for this behavior and can you give me a hint
how to lower the memory usage?
I have attached two screen-shots and a zip file with the runnable jar and the
main source files. If you need any further information please do not hesitate
to send a mail.
Thank you and kind regards
Ulrich
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