Confluence Data Center Clustering Admin screen shows the IP address instead of DNS hostname for remote cluster members
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Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles 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
Confluence Data Center Clustering Admin screen shows the IP address instead of the DNS hostname for the remote cluster members.
Environment
- Confluence Data Center
- Linux OS
Diagnosis
Go to Global Settings → Clustering page to view all the nodes participating in the cluster. The Hostname column will show the remote cluster members' IP address but the DNS address for the current node.
Cause
The Linux hosts can't resolve each other using DNS names due to the DNS server issue or the /etc/hosts file not containing the IP address and DNS name mappings for the remote cluster nodes.
Solution
To permanently fix the issue, please contact your Network/DNS/Linux administrator to resolve the Name resolution for the nodes participating in the cluster.
As a temporary workaround, you can update the /etc/hosts file to contain the IP address and DNS mapping for each remote node, as shown below. The xxx.xxx.xxx.xxx is the IP address of the remote node. You need to make these changes on all the cluster nodes. If the issue continues after the change, please try to restart the Confluence process and verify whether it resolves it. If not, please submit a ticket to Atlassian Support.
xxx.xxx.xxx.xxx example.yourdomain.com
Related Documentation: