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// https://jira.mongodb.org/browse/SERVER-4534
// Building an index in the foreground on a field with a large array and few documents in
// the collection used to open too many files and crash the server.
let t = db.huge_multikey_index;
t.drop();
function doit() {
let arr = [];
for (var i = 0; i < 1000 * 1000; i++)
arr.push(i);
t.insert({a: arr});
// t.createIndex({a:1}, {background:true}) // always worked
t.createIndex({a: 1}); // used to fail server with out of fds error
}
doit();
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