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/**
* Ensures that the 'collMod' command takes a Collection MODE_X lock during a no-op.
*/
(function() {
'use strict';
load('jstests/libs/parallel_shell_helpers.js');
// Note: failpoint name may not be changed due to backwards compatibility problem in
// multiversion suites running JS tests using the failpoint.
// In reality this hangs after acquiring a collection MODE_X lock (w/ database MODE_IX)."
const failpoint = 'hangAfterDatabaseLock';
assert.commandWorked(db.adminCommand({configureFailPoint: failpoint, mode: "alwaysOn"}));
const collectionName = jsTestName();
const conn = db.getMongo();
const coll = db.getCollection(collectionName);
coll.drop();
assert.commandWorked(db.createCollection(collectionName));
// Run a no-op collMod command.
const awaitParallelShell =
startParallelShell(funWithArgs((collectionName) => {
assert.commandWorked(db.runCommand({collMod: collectionName}));
}, collectionName), conn.port);
// Check that the Collection MODE_X lock is being held by checking in lockInfo.
assert.soon(() => {
let lockInfo = assert.commandWorked(db.adminCommand({lockInfo: 1})).lockInfo;
for (let i = 0; i < lockInfo.length; i++) {
let resourceId = lockInfo[i].resourceId;
const mode = lockInfo[i].granted[0].mode;
if (resourceId.includes("Collection") && resourceId.includes("test." + collectionName) &&
mode === "X") {
return true;
}
}
return false;
});
assert.commandWorked(db.adminCommand({configureFailPoint: failpoint, mode: "off"}));
awaitParallelShell();
})();
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