Jira Data Center FAQs
This page covers some of the most frequently asked questions we hear at Atlassian about Data Center. If you have questions that aren't answered by this page, please contact your Atlassian Enterprise Advocate, Atlassian's Enterprise team, or your Atlassian Expert.
Data Center implementation
How do I move from my single-server instance to Data Center?
Upgrade your instance to the latest version of Jira Software and follow these steps. (Make sure to update your license key to a Data Center key.)
We recommend contacting your Atlassian Enterprise Advocate or your Atlassian Expert to talk about the best way to migrate your projects.
Which add-ons/plugins are compliant with Data Center?
The best (and most up to date) way to find out whether a plugin is supported in Data Center is to check the listing on Atlassian Marketplace.
How can I deploy Data Center in different geo-locations, such as Americas, Europe, and APAC?
Data Center is designed to support hot failover scenarios in a co-located data center. Geo-clustering is not supported in Data Center.
Does Data Center support disaster recovery (DR)?
Yes, Data Center does support disaster recovery (DR) as of the release of Jira 6.4. Previous Jira version do not support DR directly. For more information please refer to our Disaster Recovery Guide for Jira.
What kind of support is included with Data Center?
Support for Data Center is similar to existing support for Jira. However, enterprise customers might choose to take advantage of other offerings, such as Premier Support and Technical Account Management. Contact your Atlassian Enterprise Advocate, email@example.com, or your Atlassian Expert for more information about these services.
Can we move from our perpetual license to Data Center, and then go back to a single node (Jira Server) later? Will there be any cost to change back?
While your subscription to Data Center is valid, you can easily run only one node if you want to. When your Data Center subscription expires, you can renew the maintenance on your prior Jira Server single server license at the standard renewal rate, effective from the date of the renewal (or from the Data Center service end date, if that comes first).
Data Center licensing
Do I have to buy licenses for add-ons on each node?
Add-ons are sold at the Jira Server rate, but the user tier has to exceed or match the Data Center license tier. For example, if you have 3,000 users in Data Center, then you would buy the add-on for 2-000-10,000 users.
To use add-ons with Data Center, you simply install the add-on on one server. Add-ons live in the shared home between the nodes; there's no need to install an add-on on every server.
See our licensing and pricing information.
Do you have unlimited users license?
No. However, just like Jira, Data Center does support anonymous users that don't count toward your license.
Can I use a Data Center license on a single-node instance?
Yes, you can apply a Data Center license to a single-node instance of Confluence, Jira, or Bitbucket. When Installing JIRA Data Center, simply skip the steps on that page for adding more nodes.
Can I continue to use developer licenses in my test environment?
Yes, you can use a developer license for a staging environment.
Does Data Center distinguish between internal and external (anonymous) users for licensing purposes?
Data Center defines users just like Jira does: anonymous users do not count toward your license.
Is the Enterprise version of Jira different from Data Center?
Yes, Enterprise was an older offering of Jira that does not support clustering. See our information on the legacy offerings.
Data Center architecture and technical requirements
How do I know the approximate number of nodes required for my number of issues or users?
You can review our node sizing documentation for some guidelines, and you can contact an Enterprise Expert Partner for a more specific recommendation for your environment. However, the most thorough way to determine this is with your own test environment: start with two nodes and upgrade to more as necessary.
Can I run multiple nodes as virtualized VMWare instances?
Yes, this is a supported architecture. Just make sure to consider the performance implications of virtualization.
Are there any specific load balancers that Atlassian recommends or has tested with?
No, just make sure your load balancer supports cookie-based session affinity.
How is the add-on (plugin) architecture affected by clustering?
If you are using an add-on from the Atlassian Marketplace, you can check on the Marketplace to see if the add-on is Data Center compliant. If you are using a custom, in house-produced plugin, please use the testing framework to see if it is Data Center compliant.
How does Data Center handle storing attachments and avatars across multiple nodes?
Data Center handles this as part of its core functionality; it will be transparent to your users.
If a node fails, what happen to transactions in progress?
If one node fails, the transactions that were in transit to the database will be lost. However, if you selected the "Remember Me" option when you logged in, you will be re-routed to a different server and will be able to re-issue the transaction.
Does authentication happen before the load balancer or at the servers?
Authentication happens at the servers.
Are indexes stored in shared storage or in each node?
Each node stores its own copy of the index and is constantly checking to make sure it's up to date.
Data Center scalability
Does Data Center support the use of an API to have new nodes configured automatically?
Data Center does not have this capability today. As you need to add nodes to the cluster, follow these steps to incorporate them.
What's the minimum number of servers I should use?
In order for hot failover to be possible, we do recommend that you have a minimum of two servers. Within Atlassian, we've tested using up to four nodes.
How does the use of custom fields affect the performance of Data Center?
The impact of using custom fields is exactly the same as with Jira Server. Custom fields can impact performance because of the amount of data that Jira has to sort to produce the result (in a query or even in displaying an issue). In that regard, Data Center can help because it distributes the amount of requests to the individual nodes.
Data Center maintenance
Can Data Center be upgraded without downtime (e.g., a rolling upgrade)?
Currently, upgrades have to be done one node at a time. During the upgrade process, eventually the last node in the cluster will need to be taken down; you can then bring the entire cluster back into production one node at a time. In Jira Software Data Center 7.3, we've introduced zero downtime upgrades, however you need to upgrade to Jira Software Data Center 7.3 before you can start using this functionality. Zero downtime upgrades is currently only supported for Jira Software 7.3 and above.
What type of downtime should I expect when upgrading Data Center?
The expected downtime will be similar to your current Jira downtime during upgrades.
What happens if we stop paying for the Data Center subscription service?
You can still access your information in Jira. However, you aren't able to create any new issues in your instance. You can also still export your issues, as well as transition the issues that are populated in your instance prior to the expiration.
Ready to get started?
Get going with Data Center straight away.