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// Tests that stashed transaction resources are destroyed at shutdown and stepdown.
// @tags: [uses_transactions]
(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);
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"},
startTransaction: true,
autocommit: false,
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});
function testStepdown(stepdownFunc) {
rst = new ReplSetTest({nodes: 2});
rst.startSet();
rst.initiate();
const primary = rst.getPrimary();
const primaryDB = primary.getDB(dbName);
const session = primaryDB.getMongo().startSession();
const 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),
startTransaction: true,
autocommit: false
}));
assert(res.hasOwnProperty("cursor"), tojson(res));
assert(res.cursor.hasOwnProperty("id"), tojson(res));
const cursorId = res.cursor.id;
// It should be possible to step down the primary without hanging.
stepdownFunc(rst);
rst.waitForState(primary, ReplSetTest.State.SECONDARY);
// Kill the cursor.
assert.commandWorked(sessionDB.runCommand({killCursors: collName, cursors: [cursorId]}));
rst.stopSet();
}
//
// Test that stashed transaction resources are destroyed at stepdown triggered by
// replSetStepDown.
//
function replSetStepDown(replSetTest) {
assert.commandWorked(
replSetTest.getPrimary().adminCommand({replSetStepDown: 60, force: true}));
}
testStepdown(replSetStepDown);
//
// Test that stashed transaction resources are destroyed at stepdown triggered by loss of
// quorum.
//
function stepDownOnLossOfQuorum(replSetTest) {
const secondary = rst.getSecondary();
const secondaryId = rst.getNodeId(secondary);
rst.stop(secondaryId);
}
testStepdown(stepDownOnLossOfQuorum);
})();
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