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How can i setup collaborative editing using internal synchrony proxy?

Tomislav Balaz Aug 02, 2017

Hello everyone,


I have installed environment like described in example below:


Only configuration change that i have done is adding

CATALINA_OPTS="-Dsynchrony.proxy.enabled=true {CATALINA_OPTS}"

CATALINA_OPTS="-Dsynchrony.service.url= {CATALINA_OPTS}"


I have configured and started synchrony as explained in:

  2. Setup Synchrony

in atlassian-confluence.log i have this info related to synchrony:

2017-08-02 14:44:55,450 INFO [ThreadPoolAsyncTaskExecutor::Thread 67] [plugins.synchrony.bootstrap.DefaultSynchronyProxyMonitor] <init> synchrony-proxy healthcheck url:
2017-08-02 14:44:59,210 INFO [lifecycle:thread-11] [plugins.synchrony.bootstrap.DefaultSynchronyProcessManager] startup Starting Synchrony and enabling Collaborative Editing
2017-08-02 14:44:59,267 WARN [lifecycle:thread-11] [plugins.synchrony.bootstrap.SynchronyInteropBootstrap] onStart An exception occurred while waiting for Synchrony to start: java.lang.NullPointerException
2017-08-02 14:45:37,687 ERROR [Caesium-1-4] [scheduler.caesium.impl.CaesiumSchedulerService] executeClusteredJobWithRecoveryGuard Unhandled exception during the attempt to execute job 'synchronyStatusCheck'; will attempt recovery in 60 seconds
com.atlassian.scheduler.SchedulerRuntimeException: The parameters cannot be accessed: com.atlassian.scheduler.core.JobRunnerNotRegisteredException: No job runner registered for job runner key 'com.atlassian.confluence.plugins.synchrony-interop:synchronyStatusCheckJob'
Caused by: com.atlassian.scheduler.core.JobRunnerNotRegisteredException: No job runner registered for job runner key 'com.atlassian.confluence.plugins.synchrony-interop:synchronyStatusCheckJob'
jvmInputArguments = -Djava.util.logging.config.file=/opt/atlassian/confluence/conf/ -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dsynchrony.service.url= -Dsynchrony.proxy.enabled=true -Dconfluence.context.path= -Datlassian.plugins.startup.options= -Dorg.apache.tomcat.websocket.DEFAULT_BUFFER_SIZE=32768 -Dsynchrony.enable.xhr.fallback=true -Xms1024m -Xmx1024m -XX:+UseG1GC -Datlassian.plugins.enable.wait=300 -Djava.awt.headless=true -XX:G1ReservePercent=20 -Xloggc:/opt/atlassian/confluence/logs/gc-2017-08-02_14-43-25.log -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=2M -XX:-PrintGCDetails -XX:+PrintGCDateStamps -XX:-PrintTenuringDistribution -Djava.endorsed.dirs=/opt/atlassian/confluence/endorsed -Dcatalina.base=/opt/atlassian/confluence -Dcatalina.home=/opt/atlassian/confluence
Synchrony Interop Bootstrap Plugin (com.atlassian.confluence.plugins.synchrony-interop, Version: 6.3.1, Installed: bundled)


In admin/confluence-collaborative-editor-plugin/configure.action site i have error:

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

and synchrony URL

Can someone point me in right direction how to fix this.

I assume that synchrony url should be but i don't know where to change this.

Thank you all.

1 answer

1 accepted

0 votes
Answer accepted
Ann Worley Atlassian Team Aug 03, 2017

Please let us know more about what you are setting up. You linked documentation for Confluence Data Center, but the diagram you posted from Administering Collaborative Editing is standalone server architecture. If you are installing a standalone instance please see Troubleshooting Collaborative Editing.

If you need to set up Synchrony for Data Center, please follow: Configuring Synchrony for Data Center. The synchrony proxy does not work with Data Center.

I look forward to hearing how it goes with these guides.

Tomislav Balaz Aug 10, 2017

Hello Ann,

i have managed to setup Synchrony without internal proxy as suggested following Install Confluence Data Center. 

I'm running both Synchrony and Confluence on same nodes. Now i have issues with F5 because whenewer i have both nodes working i can't enter /admin site and i can't create pages.

i will open a new Question if i will need help.


Thank you.

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