Bugzilla – Full Text Bug Listing
| Summary: | BIRT issues with concurrent report executions | ||
|---|---|---|---|
| Product: | z_Archived | Reporter: | erlich <jerlich> |
| Component: | BIRT | Assignee: | Vincent Petry <vpetry> |
| Status: | CLOSED FIXED | QA Contact: | Tianli Zhang <tzhang> |
| Severity: | normal | ||
| Priority: | P3 | CC: | bluesoldier, bonfils, wenfeng.fwd, whe, yli, zqian |
| Version: | 2.2.0 | ||
| Target Milestone: | 2.3.2 | ||
| Hardware: | PC | ||
| OS: | Windows XP | ||
| Whiteboard: | Non-Auto | ||
Any feedback here? (In reply to comment #1) > Any feedback here? This is due to the assumption in viewer that http session can uniquely identify a report execution request. We will look into a solution in 2.3.1. Suggestion on a solution or a code patch will be a great help. hmm i think that the best idea is just to put an id to the each report execution, and use that id when naming the report document.. Suggest to remove the report document per http session cache. Each report execution should have its own report document even if the execution requests are from the same http session for the same report. Need more investigation. The BIRT viewer now supports concurrent executions of the same report. To achieve this, a new sub-session feature has been added. Each time a report is viewed/executed, a sub-session is opened. Since there is no logout mechanism, the sub-sessions will be cleaned according to the configuration found in viewer.properties. My application has security requirements, will this affect that? It depends what you mean with security requirements. I think this change doesn't add much more about security. It just ensures that one single user can't mess up the cached report document when using separate browser windows/tabs. It's not related to multi-user, as this is already secured by the use of the tomcat session. Verified in 2.3.2 v20090105-0630 build, each execution will open a new sub-session and has its own rptdocument. Mark this bug as verified. |
I'm having an issue with executing reports concurrently I've a webapp that's works on jetty (or tomcat), and uses BIRT to execute reports.. using the viewservlets.jar The issue is that when I try to execute one report on different tabs/windows on the same explorer/firefox they don't work properly.. For what i could see, BIRT generates a report document each time the report is executed, and this document file path is based on the http session id and report file name.. So, if i have 3 browser's windows/tabs using the same report and using the same http session, when i execute the same report (with different parameters), one of these things happens: - The 3 reports executions show the same report - One or two of them show an error message saying "org.eclipse.birt.report.service.api.ReportServiceException: Report document instance is empty." - One or two of them show an error message saying "Error Shown on Web-Client: org.eclipse.birt.report.service.api.ReportServiceException: Can not find the report design in the report document: {webapp deploy}\birt\documents\bp8mvv26acii\c3fd4a38\metrifix_report1.rptdocument" There should be some kind of execution id to prevent this to happen.. I think synchronizing the servlet is not enough.. because (i think, but i'm not sure) the http request for report document creation is not the same that the http request for report rendering.. but i repeat.. i'm not sure..