How to activate script runner "Switch User Function" on cloud?

[rohith.kotwal]

Switch User Function: 
I have seen this functionality on server but not on cloud. Could you help us to get this on our cloud.

[Nic Brough -Adaptavist-]

Start with a look at your logs:

<jira home>/logs/atlassian-jira.log will usually contain a reason for a crash. It's the application log, so it will show application level faults.

If that just stops dead, then <jira install>/log/catalina.out is the next place to look (this should contain a more system level error).

If both simply stop dead at crash time, then it is something in the operating system killing it, and you'll need to dig through system logs.