Collaborative Editing does not work after migration from Data Center to Server

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Platform Notice: Server and Data Center Only. This article only applies to Atlassian products on the server and data center platforms.

Problem

After migrating Confluence from Data Center to Server edition, Collaborative Editing cannot be enabled. 

The following appears on screen after clicking Change ModeEnabled on the Collaborative Editing menu at: <base-url>/admin/confluence-collaborative-editor-plugin/configure.action


We couldn't connect to your Synchrony cluster from this Confluence node. 


Diagnosis

Environment

  • Confluence Server 6.6.x (migrated from Data Center)

Diagnostic Steps

  • When attempting to enable Collaborative Editing, the error in the below screenshot is displayed. 
  • In the able screen, note that Synchrony URL is displayed on the bottom right under configuration - this should only appear in Data Center instances. Server instances should look like this:
  • The following configuration settings are in confluence.cfg.xml

        <property name="synchrony.btf">false</property>

Resolution

  1. Update confluence.cfg.xml and set synchrony.btf to true: 

        <property name="synchrony.btf">true</property>
  2. Add the following parameter to setenv.sh (or setenv.bat for Windows): 

    CATALINA_OPTS="-Dsynchrony.proxy.enabled=true {CATALINA_OPTS}"
  3. Restart Confluence
  4. Enable Collaborative Editing 
    1.  > General SettingsCollaborative Editing
    2. Click Change Mode
    3. Click On
    4. Click Change



Last modified on May 7, 2018

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