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/**
* Tests that WT_PREPARE_CONFLICT errors are retried correctly on read operations, but does not test
* any actual prepare transaction functionality.
* @tag: [requires_wiredtiger]
*/
(function() {
"strict";
let conn = MongoRunner.runMongod();
let testDB = conn.getDB("test");
let t = testDB.prepare_conflict;
t.drop();
// Test different types of operations: removals, updates, and index operations.
assert.commandWorked(t.createIndex({x: 1}));
assert.commandWorked(
t.createIndex({y: 1}, {partialFilterExpression: {_id: {$gte: 500}}, unique: true}));
let rand = {"#RAND_INT": [0, 1000]};
let ops = [
{op: "remove", ns: t.getFullName(), query: {_id: rand}, writeCmd: true},
{op: "findOne", ns: t.getFullName(), query: {_id: rand}, readCmd: true},
{
op: "update",
ns: t.getFullName(),
query: {_id: rand},
update: {$inc: {x: 1}},
upsert: true,
writeCmd: true
},
{op: "findOne", ns: t.getFullName(), query: {x: rand}, readCmd: true},
{
op: "update",
ns: t.getFullName(),
query: {_id: rand},
update: {$inc: {y: 1}},
upsert: true,
writeCmd: true
},
{op: "findOne", ns: t.getFullName(), query: {y: rand}, readCmd: true},
{op: "findOne", ns: t.getFullName(), query: {_id: rand}, readCmd: true},
];
let seconds = 5;
let parallel = 5;
let host = testDB.getMongo().host;
let benchArgs = {ops, seconds, parallel, host};
assert.commandWorked(testDB.adminCommand(
{configureFailPoint: 'WTAlwaysNotifyPrepareConflictWaiters', mode: 'alwaysOn'}));
assert.commandWorked(testDB.adminCommand(
{configureFailPoint: 'WTPrepareConflictForReads', mode: {activationProbability: 0.05}}));
res = benchRun(benchArgs);
assert.commandWorked(
testDB.adminCommand({configureFailPoint: 'WTPrepareConflictForReads', mode: "off"}));
assert.commandWorked(
testDB.adminCommand({configureFailPoint: 'WTAlwaysNotifyPrepareConflictWaiters', mode: 'off'}));
res = t.validate();
assert(res.valid, tojson(res));
MongoRunner.stopMongod(conn);
})();
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