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// Tests that stashed transaction resources are destroyed at shutdown and stepdown.
// @tags: [requires_replication]
(function() {
"use strict";
const dbName = "test";
const collName = "coll";
//
// Test that stashed transaction resources are destroyed at shutdown.
//
let rst = new ReplSetTest({nodes: 1});
rst.startSet();
rst.initiate();
let primaryDB = rst.getPrimary().getDB(dbName);
if (!primaryDB.serverStatus().storageEngine.supportsSnapshotReadConcern) {
rst.stopSet();
return;
}
let session = primaryDB.getMongo().startSession();
let sessionDB = session.getDatabase(dbName);
for (let i = 0; i < 4; i++) {
assert.commandWorked(sessionDB.coll.insert({_id: i}, {writeConcern: {w: "majority"}}));
}
// Create a snapshot read cursor.
assert.commandWorked(sessionDB.runCommand({
find: collName,
batchSize: 2,
readConcern: {level: "snapshot"},
txnNumber: NumberLong(0)
}));
// It should be possible to shut down the server without hanging. We must skip collection
// validation, since this will hang.
const signal = true; // Use default kill signal.
const forRestart = false;
rst.stopSet(signal, forRestart, {skipValidation: true});
//
// Test that stashed transaction resources are destroyed at stepdown.
//
rst = new ReplSetTest({nodes: 2});
rst.startSet();
rst.initiate();
const primary = rst.getPrimary();
primaryDB = primary.getDB(dbName);
session = primaryDB.getMongo().startSession();
sessionDB = session.getDatabase(dbName);
for (let i = 0; i < 4; i++) {
assert.commandWorked(sessionDB.coll.insert({_id: i}, {writeConcern: {w: "majority"}}));
}
// Create a snapshot read cursor.
const res = assert.commandWorked(sessionDB.runCommand({
find: collName,
batchSize: 2,
readConcern: {level: "snapshot"},
txnNumber: NumberLong(0)
}));
assert(res.hasOwnProperty("cursor"), tojson(res));
assert(res.cursor.hasOwnProperty("id"), tojson(res));
// It should be possible to step down the primary without hanging.
assert.throws(function() {
primary.adminCommand({replSetStepDown: 60, force: true});
});
rst.waitForState(primary, ReplSetTest.State.SECONDARY);
// TODO SERVER-33690: Destroying stashed transaction resources should kill the cursor, so this
// getMore should fail.
assert.commandWorked(sessionDB.runCommand(
{getMore: res.cursor.id, collection: collName, txnNumber: NumberLong(0)}));
rst.stopSet();
})();
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