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// Test that we can limit number of keys being generated by compounded 2dsphere indexes
(function() {
"use strict";
// Launch mongod reduced max allowed keys per document.
var runner = MongoRunner.runMongod({setParameter: "indexMaxNumGeneratedKeysPerDocument=200"});
const dbName = jsTestName();
const testDB = runner.getDB(dbName);
var coll = testDB.t;
const runTest = (indexDefinition) => {
coll.drop();
// Create compound 2dsphere index.
assert.commandWorked(coll.createIndex(indexDefinition));
// This polygon will generate 11 keys
let polygon = {
"type": "Polygon",
"coordinates": [[[0.0, 0.0], [1.0, 0.0], [0.0, 1.0], [0.0, 0.0]]]
};
// We can insert this just fine
assert.commandWorked(coll.insert({x: polygon, y: 1}));
// However, compounding with an array of 20 elements will exceed the number of keys (11*20 >
// 200) and should fail
assert.commandFailed(coll.insert(
{x: polygon, y: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]}));
// Now let's set a failpoint to relax the constraint so we can insert some bad documents.
assert.commandWorked(testDB.adminCommand(
{configureFailPoint: "relaxIndexMaxNumGeneratedKeysPerDocument", mode: "alwaysOn"}));
assert.commandWorked(coll.insert([
{
_id: 'problem1',
x: polygon,
y: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
},
{
_id: 'problem2',
x: polygon,
y: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
}
]));
// And let's disable the failpoint again. At this point, the documents inserted above simulate
// old documents inserted prior to SERVER-61184.
assert.commandWorked(testDB.adminCommand(
{configureFailPoint: "relaxIndexMaxNumGeneratedKeysPerDocument", mode: "off"}));
// Confirm we cannot continue to insert bad documents.
assert.commandFailed(coll.insert(
{x: polygon, y: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]}));
// We should also get an error when we try to validate.
const validation = assert.commandWorked(coll.validate());
assert.eq(validation.errors.length, 1);
assert(validation.errors[0].includes('CannotBuildIndexKeys'));
// We should be able to remove a problem document.
assert.commandWorked(coll.deleteOne({_id: 'problem1'}));
// We should also be able to update a problem document to fix it.
assert.commandWorked(coll.updateOne({_id: 'problem2'}, {"$set": {y: []}}));
// But we shouldn't be able to update it to break it again.
try {
coll.updateOne(
{_id: 'problem2'},
{"$set": {y: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]}});
assert(false);
} catch (res) {
assert(res instanceof WriteError);
}
};
// Test both key orderings
runTest({x: "2dsphere", y: 1});
runTest({y: 1, x: "2dsphere"});
MongoRunner.stopMongod(runner);
})();
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