Jira Data Center FAQs
What do you want to know about Jira Data Center?
Have a burning question about Jira Data Center? Our Atlassian Experts have probably been asked it before. Choose a category below to get started.
How Data Center works
AUTHENTICATION Does authentication happen before the load balancer or at the servers?
Authentication happens at the servers.
DISASTER RECOVERY What disaster recovery (DR) functionality does Data Center provide that a single server environment doesn't?
Data Center products support high availability, along with other product-specific disaster recovery and failover features not available in Server versions.
DOWNTIME Can we upgrade Data Center without downtime?
We introduced zero downtime upgrades (ZDU) from Jira 7.3 onwards. You'll need to upgrade to this version to take advantage of this functionality.
Read Managing zero downtime upgrades for more info.
If you are running Jira 7.2 or earlier, expect similar downtime to what you experience during normal Jira Server upgrades.
INDEXES Are indexes stored in shared storage or in each node?
Each node stores its own copy of the index and regularly syncs it with other nodes, to keep it up to date.
TRANSACTIONS What will happen to a transaction in progress if a node fails?
If users select Remember me when they log in, they'll be re-routed to a different server where they can re-issue the transaction.
If they didn't select Remember me, transactions in progress will be lost.
LATENCY What's the maximum supported latency between nodes?
There's no latency requirement between nodes, but replication works better with lower latency.
LOAD BALANCERS Which load balancers do Atlassian recommend or has tested with?
We don't officially support any load balancers; we just require your load balancer supports cookie-based session affinity (or "sticky sessions"). Most of our customers use Apache (software) or F5 (hardware) load balancers.
Read Jira Data Center load balancer examples for more info.
MIGRATING How do we move from a single-node Server instance to Data Center?
Here's how you move from a single-node Server instance to Data Center:
You can also create a new Jira Data Center instance from scratch, and then migrate the data to it from your Jira Server instance. Our Quick start for Jira Software Data Center covers this process end-to-end, and includes useful tips about planning, executing, and assessing your migration.
We recommend contacting your Atlassian Enterprise Advocate or Solution Partner to talk about the best way to migrate existing projects.
SERVER LOCATION If my instance uses physical servers, can they be in different physical locations?
No, Data Center instances using physical servers must have all nodes co-located in the same physical location.
Read Does Data Center support GEO clustering? for more info.
VIRTUALIZATION Can I run multiple nodes as virtualized VMware instances?
Yes, you can run multiple nodes as virtualized VMware instances. We recommend that you consider the impact virtualization might have on performance before you do this.
NODE LIMIT Is there a maximum supported limit of nodes?
We recommend a minimum of 2 nodes to enable hot failover. And keep in mind that more nodes doesn't necessarily mean better performance. We've seen clusters with three nodes perform well in many enterprise-scale customer environments. We've also seen instances with five or more nodes struggle to keep up with lighter loads. Start testing your load with one node, then gradually scale until you get acceptable performance.
Read Data Center: performance testing for more info.
NODES How do I know what the right number of nodes are for my environment?
There's a few things you can do to determine the right number of nodes for your environment:
APPS Do we have to buy licenses for apps on each node?
You buy apps at the Jira Server rate. 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 app for 2,000-10,000 users. You only need to install the app onto one node because they live in the shared home between nodes.
Read Data Center licensing and pricing for more info.
DEVELOPER Can we continue to use a developer license in our test environment?
Yes, you can use a developer license in your test environment.
Read Purchasing and Licensing FAQs for more info.
ENTERPRISE What's the difference between the Enterprise version of Jira and Jira Data Center?
The Enterprise version of Jira is a previous offering that doesn't support clustering.
Read Enterprise offerings for information about the differences between Jira Enterprise and Jira Data Center.
PERPETUAL LICENSE 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?
When you move from a perpetual Server license to Data Center, you can run a single node on your instance until your Data Center subscription expires. When it does, you can choose to renew the maintenance on your perpetual Jira Server license at the standard renewal rate.
You can't use a Jira Server license on a multi-node instance, so if you plan to scale up you'll have to move to Data Center again.
SINGLE NODE Can we use a Data Center license on a single-node instance?
Yes, you can use a Data Center license on a single-node instance of Confluence, Jira, or Bitbucket.
Read Installing Jira Data Center and skip the steps for adding more nodes.
SUBSCRIPTION What happens if we stop paying for our Data Center subscription service?
You can still access your information in Jira, but you can't create new issues in your instance. You can also export your issues and transition any existing issues (prior to expiration date).
UNLIMITED USERS Is there an unlimited users license?
No, we don't have an unlimited users license, but Data Center supports anonymous users that don't count towards your license.
Maintenance and support
API Does Data Center support the use of an API to get new nodes configured automatically?
No, Data Center doesn't currently support this.
Read Installing Jira Data Center to learn how to add nodes to your cluster.
APPS What third party apps are certified for Data Center use?
You will find apps compatible with Data Center by selecting the Data Center link under Hosting in the Atlassian Marketplace. Each app here has both Supported and Data Center labels.
POINTS OF FAILURE How can we avoid single points of failure (SPOF) in our Data Center?
We recommend that you speak to one of our Solution Partners. They can guide you through identifying and correcting single points of failure within your infrastructure.
RE-INDEXING What type of re-indexing should I run – Background or Lock Jira and rebuild index?
With a Jira Software Data Center instance, always use Lock Jira and rebuild index. It's faster and more effective. Plus, with a multi-node Data Center instance, this type of re-index doesn't lock Jira. Rather, it only locks one node, so the other nodes can still provide the application.
SUPPORT What kind of support is included with Jira 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.