rest performance issue

Tobbe1

Hi

Im suspecting that our users who access JIRA using rest causing some performance issues but I can I tell?

In the logs there are alot of jira/rest/ calls but can I be sure they only belong to rest calls or does JIRA internally use rest calls when using JIRA normally, like clicking around, accessing plugins, creatingt issues etc.

David Yu

You want to peek at how long those REST API requests take. Generally if they finish pretty quickly (less than a second), there's not too much concern. But if all the requests come in concurrently, and are also slow requests, then it's trouble.

Here's a command you can issue to sort by slowest REST call. It'll list who issued the call, and what the URL was. You can play around with the awk command to print other columns such as date/time.

grep "rest/api" atlassian-jira-http-access.log | awk '{print $11 " " $3 " " $7}' | sort -g | tail
5.6010 evilbot https://jira/rest/api/2/search
5.7310 evilbot https://jira/rest/api/2/search
5.7440 evilbot https://jira/rest/api/2/search
5.7770 evilbot https://jira/rest/api/2/search
5.9510 evilbot https://jira/rest/api/2/search
6.1860 evilbot https://jira/rest/api/2/search
6.2540 evilbot https://jira/rest/api/2/search
6.5950 evilbot https://jira/rest/api/2/search
6.6630 evilbot https://jira/rest/api/2/search
6.9410 evilbot https://jira/rest/api/2/search

No surprise here...lots of slow searches for me.

Maybe you can find a correlation between the time of slowness, and when these bots start triggering.

You can also determine if the calls are coming from within JIRA via the referral URL which is also included in atlassian-jira-http-access.log. But usually the dead giveaway is the user-agent. Some parts of the web UI does perform REST calls such as the user picker IIRC.