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From "Aki Yoshida (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-4867) Extensive memory usage when reading from CRM 2011
Date Tue, 12 Mar 2013 17:03:14 GMT

    [ https://issues.apache.org/jira/browse/CXF-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13600188#comment-13600188
] 

Aki Yoshida commented on CXF-4867:
----------------------------------

Hi Ulrich,
Okay. So I hope you won't have the memory problem after you fix your program.
As far as your heap dump is concerned, I looked at it and most of the objects are rooted at
a single xml element that is still held by the client. So, that would kind of explain what
you described as the cause of the high memory usage.
So, I am closing this ticket as non-issue.

regards, aki
                
> 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
>            Assignee: Aki Yoshida
>         Attachments: Connection.txt, Instances.png, krb5.conf, LivePaths.png, login.conf,
Memory2.png, Prompt.png, TestCXF.zip, VisualVM.jpg
>
>
> 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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