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Support Article

Export to PDF - Unresponsive session & RequestorLockException



The Export to PDF feature in a ListView or Report Definition can cause the user's session to become unresponsive if the report contains too much data in the results.  A RequestorLockException (Unable to synchronize on requestor) may also be seen in the log file related to this issue.

Error Messages

13 Nov 2014 15:54:42,775 [http-bio-8082-exec-8] (ngineinterface.service.HttpAPI) ERROR serverB|IP_Address1 - IP_Address2: Unable to synchronize on requestor HDEE2CBADD97A781E548083BFE777895A within 120 seconds: (thisThread = http-bio-8082-exec-8) (originally locked by = http-bio-8082-exec-2) (finally locked by = http-bio-8082-exec-2)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.getLockOnRequestor(
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(


Steps to Reproduce

1. Create a report that returns a lot of data
2. Run the report
3. Export the results to a PDF file

Root Cause

The root cause of this problem is a defect/misconfiguration in the application. Any Report Type that provides an option to Export to PDF could result in an unresponsive session  requestor timeout error in the logfile if the report is takes longer than the 2 minute browser timeout to return its data.


This issue is resolved through the following local change: Revise the query parameters to return less content in the report, or remove the Export to PDF option.
Suggest Edit

Published January 31, 2016 - Updated October 8, 2020

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