Collaborative Editing is not working
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Users can't create or edit pages. After clicking on the Create or Edit button, the following error is displayed:
1
Something went wrong after loading the editor. Copy your unsaved changes and refresh the page to keep editing.Environment
Confluence Server running on Windows.
Diagnosis
Checking the atlassian-confluence.log, we can find the following:
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WARN [lifecycle:thread-23] [plugins.synchrony.bootstrap.SynchronyInteropBootstrap] onStart An exception occurred while waiting for Synchrony to start: Unexpected exit value: 1, allowed exit values: [0], executed command [taskkill, /F, /PID, <PID-Number>]Cause
This error can happen when the Synchrony process is not stopped properly during a Confluence shutdown. Once Confluence starts again, it tries to kill the lingering process but hits the error above.
Solution
Shutdown Confluence
Check if there is anything still listening to the 8091 port (8091 is the Synchrony default port, so make sure to adjust it if you are using a different port)
1netstat -an |find /i "listening"If there is any process still listening to the Synchrony port, we need to manually kill it (make sure to use the same PID found in the previous step):
1taskkill /F /PID pid_numberDelete the file <confluence-install>/temp/synchrony.pid
Start Confluence and check if it is able to successfully start the Synchrony process now
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