I tried the following on 2.5.5 and it said unrecognized. How can I give this permission to a user without full dbAdmin so that they can cancel their long-running queries? Even better would be that they could only cacnel their own.

> db.runCommand({createRole: "killOpRole", privileges: [{resource:

, actions: ["killOp", "currentOp"]}]})
{
"ok" : 0,
"errmsg" : "Unrecognized action privilege string: killOp",
"code" : 9
}