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Bug 342325

Summary:	Slow concurrent report generation
Product:	z_Archived	Reporter:	ricofernandes
Component:	BIRT	Assignee:	Birt-ReportEngine-inbox <Birt-ReportEngine-inbox>
Status:	RESOLVED WORKSFORME	QA Contact:	Xiaoying Gu <bluesoldier>
Severity:	major
Priority:	P3	CC:	bluesoldier, jouyang
Version:	2.6.1
Target Milestone:	3.7.0
Hardware:	PC
OS:	Windows XP
Whiteboard:

Description ricofernandes

2011-04-08 14:23:53 EDT

I have a web application running in Jboss that have lots of concurrent users. At a given time, lots of reports are generated.

In this scenario, sometimes reports run very slow! They appear to be waiting for something and then continue. I'm using a Servlet (almost equal to the reference servlet) to handle report generation.

Taking a dump of the threads running, I've noticed something strange:

org.eclipse.birt.report.engine.data.dte.ReportQueryBuilder.b uild(ReportQueryBuilder.java:256)
- locked <0x45a228> (a org.eclipse.birt.report.engine.ir.Report)
org.eclipse.birt.report.engine.data.dte.ReportQueryBuilder.b uild(ReportQueryBuilder.java:237)
- locked <0x45a228> (a org.eclipse.birt.report.engine.ir.Report)

additional comments: http://www.eclipse.org/forums/index.php?t=msg&goto=664423&S=71711901b51892b2c4e30c29fbdc61ce#msg_664423

Comment 1 Jun Ouyang

2011-04-14 23:35:22 EDT

Hi,

We need more detail dump info to analyze the problem. Could you please attach complete dump file? thanks.

Comment 2 Jun Ouyang

2011-04-20 23:02:55 EDT

According to current dump info, I am not able to reproduce the problem. I checked the relative source code, didn't find any clue about such a bug.

Set as worksforme. Please reopen it if there is more infomation.