confluence cluster issue Edited


Thanks in advance

we hosted our confluence data center in aws. we followed all installation steps which mentioned but when we start the node-1 it is coming up. but node2 throwing error(

HTTP Status 500 - com.atlassian.vcache.ExternalCacheException: Failed due to UNCLASSIFIED_FAILURE

when we restart node2 it is coming up and node1 throwing same error as above. Is there any modifications required in configuration files?

our infra:


2 EC2 instances


EFS- nfs enable(shared home)


1 answer

1 accepted

This widget could not be displayed.

What happens if you restart the Confluence app on node 2? Occasionally, I've seen odd cases like this where the app starts up slowly and certain required components of the app timeout. This leads to a domino effect of other things not starting and odd errors.  If it is still behaving strangely after an app bounce, shut the app down and delete the Confluence application log and restart. This way you're starting with a clean log.  Post up the first few errors in the log and I think we should be able to help you sort this out.

Issue with both instances are not communicating each other due to network(telnet not happen). Now issue got resolved.

Thank you.

@Dave Theodore [Coyote Creek Consulting]

Please help this

when i login into the application with admin credentials , it is getting login and immediately getting logout.

No errors thrown in the atlassian-confluence.log. The following warning flashes quickly and user is redirected to the login page


confluence login error.JPG

Sounds like you have issues with your load balancer configuration. If I were a betting man, I would say your load balancer is probably not session sticky. 

Suggest an answer

Log in or Sign up to answer
Community showcase
Asked Sep 17, 2018 in Data Center

Hi! I'm Cameron Deatsch, enterprise enthusiast and Head of Server at Atlassian. AMA!

Hey team! I'm Cameron Deatsch, Head of Server at Atlassian. At our European Summit just a few weeks ago, I spoke about the latest regarding our Server and Data center products and o...

46,451 views 60 12
View question

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you