Jira Core 9.3.x upgrade notes
Here are some important notes on upgrading to Jira Core 9.3.x.
Upgrading from 8.x to 9.x triggers full Jira reindex that causes some downtime during the process. If you’re on 8.x now, make sure you’ve estimated the downtime and set the best time for the upgrade.
Learn more about how to handle full reindex and estimate downtime
Jira Core 9.3 has a known issue that is causing the Atlassian Jira Diagnostics app to create excess threads, which leads to a degradation in performance. In situations of elevated database activity — for example, during a full reindex — this may lead to the entire instance crashing.
We’ve already delivered a fix for this problem in Jira Core 9.4.0, which is available for download. The same fix will be backported to Jira Core 9.3.2.
Upgrade notes
Multi-threaded index catch-up (Data Center)
Index catch-up is now performed in multiple threads to increase scalability and speed up the node start-up on your Jira instance. Multi-threaded index catch-up prevents the hindrance caused by the synchronization between an obtained snapshot copy and the changes between the time of snapshot creation and the time of the node start-up.
As a result, you get the more effective use of computing resources and improved instance performance.
Improved accuracy of app attribution for database usage
We’ve added two new system properties into the Jira Diagnostics plugin to improve the db.core.executionTime metric and thus, to increase the accuracy of app attribution for database usage.
Enabling the properties allows attributing apps for database usage more accurately and reduces the impact of the operations on the instance performance.
com.atlassian.diagnostics.db.static.method.invoker.enableatlassian.diagnostics.db.static.method.invoker.improved.accuracy.enable
New database connectivity metrics for in-product diagnostics
The new database connectivity metrics allow efficient instance diagnostics and timely resolution of performance issues. By using the metrics, you’ll identify what in your environment or infrastructure might impact the performance. Early discovery of a problem guarantees that it can be fixed before its consequences have a bigger impact on instance operation.
The metrics are available through JMX and a new log file atlassian-jira-ipd-monitoring.log.
End of support announcements
This release does not include any end of support announcements. For the list of supported platforms, see Supported platforms.
App developers
See Preparing for Jira 9.3 for any important changes regarding apps.
Upgrade procedure
Upgrading from Jira 8.x.x?
- See Upgrading Jira applications for complete upgrade procedures, including all available upgrade methods and pre-upgrade steps.
- For a more tailored upgrade, go to Jira administration > Applications > Plan your upgrade. We’ll recommend a version to upgrade to, run pre-upgrade checks, and provide you with a custom upgrade guide with step-by-step instructions.