Jira Data Center Health Check Tools
Data Center provides a set of tools that you can use to monitor the health of your instance, as well as to identify the root cause when the instance is not performing as expected.
It's recommended that you look at the status of the health check tools after you initially install Data Center, anytime you add a node to the instance, and anytime you need to troubleshoot your setup.
Accessing the health checks
To access the health check tools, go to 
> System > Troubleshooting and Support tools. All health checks are listed in the Instance health tab. Expand each of them to see the details and links to knowledge base articles that describe the results.
Details on cluster health checks
The following table provides more details on the clustering health checks that are specific to Data Center.
| Check | Information |
|---|---|
| Cluster Index Replication health check fails in Jira Data Center | An error on this health check could indicate that search results are not up to date on some nodes. Contact Support if this persists. |
| Cluster Locks health check fails in Jira Server | An error on this health check indicates that there might be a problem with a plugin and the way it uses locks. |
| HealthCheck: Scheduler | The Scheduler causes events to fire at designated times, similar to cron or Windows Task Manager. Contact Support if this health check fails. |
| Cluster Cache Replication health check fails in Jira Data Center | Checks that the internode communication settings in the |
| HealthCheck: Cluster Time Synchronization | Checks that the time is synchronized on all nodes in the cluster. To make sure that the time is synchronized, use an automated service, such as NTPD. |
| HealthCheck: Shared Home | Checks that the shared home directory is correctly configured in the |