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Heng Xing Tian Tai Lab of Xi'an City (abbr, HXTT)

HXTT DBF
Memory error
Oscar San Martin
2011-09-23 16:02:25.0
Hi, for a simple query, HXTT send message :

Exception in thread "PooledThread-0" java.lang.OutOfMemoryError: Java heap space

I call DBF_JDBC30 with :

java -Xms512M -Xmx1024M -Xss512k -XX:MaxPermSize=512m -jar DBF_JDBC30.jar


Thanks
Re:Memory error
HXTT Support
2011-09-25 06:15:51.0
Whether that issue was happened only on 64 bit machine?
Re:Re:Memory error
Oscar San Martin
2011-09-25 08:27:32.0
No, this error is all clients.....however if I copy all dbf site to my computer, and run HXTT service locally, it work fine.....

means I must change the server ???? ( W2003 )

Thanks...
Re:Re:Re:Memory error
HXTT Support
2011-09-25 18:47:19.0
>No, this error is all clients....
Then whether HXTT DBF is running on a web server? If so, you can try a bigger Xmx parameter.
Re:Re:Re:Re:Memory error
Oscar San Martin
2011-09-25 19:45:26.0
HXTT is running on 2003 server with DBF files, Java app is a java web start application download from another server (ubuntu), so, when java clients try to load driver, HXTT show in cmd window : Exception in thread "PooledThread-0" java.lang.OutOfMemoryError: Java heap space

Thanks
Re:Re:Re:Re:Re:Memory error
HXTT Support
2011-09-25 23:25:38.0
What's the client jdbc url? server/client access mode or embedded access mode?
Re:Re:Re:Re:Re:Re:Memory error
Oscar San Martin
2011-09-26 05:43:22.0
urlDbGes = "jdbc:dbf://192.168.0.136:5555/D:/mts/winmts";

"192.168.0.136" => Windows 2003


Re:Re:Re:Re:Re:Re:Re:Memory error
HXTT Support
2011-09-26 05:54:28.0
>urlDbGes = "jdbc:dbf://192.168.0.136:5555/D:/mts/winmts";
Maybe that client is not using the latest client package like server side?
Re:Re:Re:Re:Re:Re:Re:Re:Memory error
Oscar San Martin
2011-09-26 06:08:05.0
client download signed package from JWS site.....Windows 2003 have not signed package......can this be the problem ??

Thanks,
Re:Re:Re:Re:Re:Re:Re:Re:Memory error
HXTT Support
2011-09-26 06:10:27.0
What's the Java version? For isstance, JDK1.7, JDK1.6, or JDK1.5.
Re:Re:Re:Re:Re:Re:Re:Re:Memory error
Oscar San Martin
2011-09-26 06:17:44.0
W2003 : 1.6.0_25

Client try in :

1.6.0_26
1.7


Re:Re:Re:Re:Re:Re:Re:Re:Memory error
HXTT Support
2011-09-28 08:09:59.0
> Hi, for a simple query, HXTT send message :
> Exception in thread "PooledThread-0" java.lang.OutOfMemoryError: Java heap space
>, so, when java clients try to load driver, HXTT show in cmd window : Exception
>in thread "PooledThread-0" java.lang.OutOfMemoryError: Java heap space
If it's happened in HXTT DBF's GUI manager, it can return OutOfMemoryError if query "select * on aVeryBigTable", since it need to load all data rows into the GUI grid for scroll purpose. Maybe add a default maxFetchSize option can let customer ovid it?

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