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Build Identifier: 3.6.0.v20100602-9gF78GpqFt6trOGhL60z0oEx3fz-JKNwxPY, Birt 2.6.0 We use BIRT to generate correspondence notices to our clients. We run these during a batch run with over 100k generated using 4 JBoss servers each running a BIRT servlet implementation. For most of the correspondence reports the PDF's generated are correct but there are a handful that fail randomly (e.g. 32 out of 100k have the font error). If we re-run these same correspondence they will not have the same error which makes it difficult for us to debug. The BIRT template sets the font in a table to be Arial size 8 but for the ones that fail the font changes to a larger font (looks like Arial size 12). The creates problems for our printing that is expecting a specific number of pages in the correspondence. The larger fonts create an extra page and the correspondence job fails at that point. Here is an overview of how the servlet is implemented. 1. The request includes the report template ID for the report and all the parameters needed for the SQL in the report. 2. The servlet reads the report out of the database and then caches it in memory 3. The servlet then renders the report for each requests and outputs a PDF document. 4. Most of the PDFs generated have no errors but randomly the font size changes within the document. This increases the number of pages in the PDF document. We are wondering if the problem is a concurrency issue with the fonts as we are running several report requests simultaneously. Any suggested workarounds would be very helpful. I will continue to add details to this bug as we investigate further. If there is other information that would be helpful please let me know. Thanks, Brett Reproducible: Sometimes Steps to Reproduce: 1. This happens when running simultaneous http requests to a BIRT servlet. We are investigating if concurrency is part of the problem. 2. The same report does not always fails. 3.
Could you please attach the report design to reproduce this bug? Do you mean only specified report design can reproduce this bug, or all report design?
Created attachment 195167 [details] Sample BIRT design with font error at heavy loads.
Here is the attached report. I have cleansed it to remove any sensitive data. This report is used to generate a user card. We generate thousands of these each month. You will see that the report has over 200 fields of data. This is the only report we have have found that reproduces the problem. We only see the problem when we run the report in batch mode with multiple threads hitting a BIRT servlet. This makes it difficult for us to reproduce. Our work around now is to post-process ever generated card to make sure it has the expected number of pages. If the pages do not match what is expected the card is regenerated. For every 10K card we will catch about 20-50 cards that need to be reprocessed. Let me know if you see anything in this design that could cause this random error. Thanks, Brett
*** Bug 344168 has been marked as a duplicate of this bug. ***
I can not run attached report since the data is not available. This bug should be the same as Bug 344168 I can reproduce Bug 344168 with 2.6.2 and 3.7.0M6, but can not reproduce with nightly build 3_7_0-N20110426. Could you please try it with the latest 3.7.0 nightly build (http://download.eclipse.org/birt/downloads/build_list.php)
We have updated our BIRT framework to the 3.7.2 release and cannot reproduce the problem with the font size changing randomly. Brett
