[#DERBY-912] OutOfMemory error on continuous execution of SQL statement

Derby

DERBY-756

OutOfMemory error on continuous execution of SQL statement

Created: 03/Feb/06 04:00 AM Updated: 24/Jan/08 01:10 PM

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Component/s:

Store

Affects Version/s:

10.0.2.0

Fix Version/s:

10.2.2.0, 10.3.1.4

Time Tracking:

Not Specified

File Attachments:

File Name	Date Attached	Attached By	Size
derby-912-v2.diff	2006-10-24 09:34 AM	Knut Anders Hatlen	2 kB
derby-912.diff	2006-10-20 06:32 PM	Knut Anders Hatlen	2 kB

Environment:

cygwin, jdk 1.4

Issue Links:

Duplicate

This issue is duplicated by:

~~DERBY-1978~~ OutOfMemory error still happens in 10.2.1.6

Reference

This issue is related to:

~~DERBY-2176~~ OutOfMemoryError in Network Server after running DOTS-like test for weeks

Resolution Date:

25/Oct/06 07:55 AM

Description

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After fixing the original memory leak, I still run into problems on repeated execution of a sql statement. Take the sample program in the bug and run it with a small heap size (4m). After around 80-90K executions an outofmemory error is thrown. I took snapshots of the heap while the program was running but couldn't find anything obviously wrong.

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Repository	Revision	Date	User	Message
ASF	#467578	Wed Oct 25 07:44:55 UTC 2006	kahatlen	~~DERBY-912~~: OutOfMemory error on continuous execution of SQL statement Reuse free sort identifiers.
				Files Changed
				MODIFY /db/derby/code/trunk/java/engine/org/apache/derby/impl/store/access/RAMTransaction.java

Repository	Revision	Date	User	Message
ASF	#467580	Wed Oct 25 07:52:53 UTC 2006	kahatlen	~~DERBY-912~~: OutOfMemory error on continuous execution of SQL statement Merged from trunk (svn merge -r 467577:467578 ../trunk).
				Files Changed
				MODIFY /db/derby/code/branches/10.2/java/engine/org/apache/derby/impl/store/access/RAMTransaction.java