I didn't find where the default value of jre memory allocation is set, but tried to call basex (BaseX73-20120612.205120) with the following command:

java -cp "$CP" $VM "${vm_args[@]}" -Xms1024m -Xmx3072m org.basex.BaseXGUI "${general_args[@]}"

and it still hanging. Even GUI does not response.

Markin Alex.

2012/6/12 Christian Grün <christian.gruen@gmail.com>
Hi Alex,

I've tried to further reduce memory consumption of XQuery Update
operations (however, this won't change the general behavior, as the
XQUF specification will always expect update operations to be cached
before they can be evaluated). Feel free to try the latest snapshot
[1].

Christian

[1] http://files.basex.org/releases/latest/
___________________________

>> for $i in collection('stars')/csv/record
>> return insert node (attribute {'id'} {generate-id()} ) into $i
>
> before any update is performed, all operations first need to be put on
> the pending update list [1]. It looks as if this list requires too
> much memory. How much memory did you assign to the JRE?
>
> Christian
>
> [1] http://docs.basex.org/wiki/XQuery_Update#Pending_Update_List
> __________________________________________________
>
>> with this file (1000000 strings with 3 integer in any in csv format). I had
>> a hang of basex and onece got the following:
>>
>> Exception in thread "Thread-526" java.lang.OutOfMemoryError: Java heap space
>> Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: GC
>> overhead limit exceeded
>>         at java.awt.EventQueue.postEvent(EventQueue.java:261)
>>         at java.awt.EventQueue.postEventPrivate(EventQueue.java:215)
>> Exception in thread "AWT-XAWT" java.lang.OutOfMemoryError: GC overhead limit
>> exceeded
>> Exception in thread "SIGTERM handler" java.lang.OutOfMemoryError: GC
>> overhead limit exceeded
>>
>> and again - the folowing:
>>
>> Exception in thread "AWT-XAWT" java.lang.OutOfMemoryError: Java heap space
>>         at java.util.logging.LogRecord.<init>(LogRecord.java:151)
>>         at java.util.logging.Logger.log(Logger.java:607)
>>         at sun.awt.X11.XToolkit.processException(XToolkit.java:535)
>>         at sun.awt.X11.XToolkit.run(XToolkit.java:614)
>>         at sun.awt.X11.XToolkit.run(XToolkit.java:543)
>>         at java.lang.Thread.run(Thread.java:679)
>>
>> Hang was even when I changed generate-id() to "1". Seems like a bug.
>> Markin Alex.