var col = db.memoryTest; // test creating many collections to make sure no internal cache goes OOM for (var i = 0; i < 10000; ++i) { name = "memoryTest" + i; if ((i % 1000) == 0) print("Processing " + name); db.eval(function(col) { for (var i = 0; i < 100; ++i) {db[col + "_" + i].find();} }, name); } // test recovery of JS engine after out of memory db.system.js.save( { "_id" : "f1", "value" : function(n) { a = []; b = []; c = []; for (i = 0; i < n; i++) { a.push(Math.random()); b.push(Math.random()); c.push(Math.random()); } } }) // do mix of calls to make sure OOM is handled with no permanent damage db.eval("f1(10)"); assert.throws(function() { db.eval("f1(100000000)"); } ); db.eval("f1(10)"); assert.throws(function() { db.eval("f1(1000000000)"); } ); db.eval("f1(1000000)"); db.eval("f1(1000000)"); db.eval("f1(1000000)"); assert.throws(function() { db.eval("f1(100000000)"); } ); db.eval("f1(10)"); db.eval("f1(1000000)"); db.eval("f1(1000000)"); db.eval("f1(1000000)"); // also test $where col.drop(); col.insert({a: 1}); col.findOne({$where: "var arr = []; for (var i = 0; i < 1000000; ++i) {arr.push(0);}"}); assert.throws(function() { col.findOne({$where: "var arr = []; for (var i = 0; i < 1000000000; ++i) {arr.push(0);}"}); }); col.findOne({$where: "var arr = []; for (var i = 0; i < 1000000; ++i) {arr.push(0);}"});