JQL searching assignee and reporter with many users

[Deleted user]

assignee in (user1,user2) or reporter in (user1,user2)

Is it possible to shorten the above? My issue is that I have a lot of users so just gives the following error. "Error occurred communicating with the server. Please reload the page and try again."

Would be nice only need one list of the same users.

[Steven F Behnke]

As @Pilar noted, you should be using functional groups for this. Your query must be able to fit into an HTTP request so it's pretty clear you've gone over some size limit.

JIRA can query on groups using membersOf() JQL function which is a stock option built-in to JIRA.

assignee in membersOf("group-name")
reporter was in membersOf("group-name")

[Pilar]

I dont think with JIRa, out of the box you can do this. But with JQL tricks plugin you can. 

assignee in membersOfGroups("my-special-group") 

See this link for more detials

http://www.j-tricks.com/jqlt-user-functions.html

Pilar