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/**
* Tests that mongod and mongos
* - Do not throw an error if a client specifies readConcern for an insert, update, delete, and
* findAndModify command running as the first command in a transaction.
* - Throw InvalidOptions if a client specifies readConcern in all other cases.
* @tags: [requires_fcv_51, uses_transactions, uses_multi_shard_transaction]
*/
(function() {
'use strict';
const st = new ShardingTest({
mongos: 1,
shards: 1,
});
const shard0Primary = st.rs0.getPrimary();
const kDbName = "testDb";
assert.commandWorked(st.s.adminCommand({enableSharding: kDbName}));
function testWriteCommandOutsideSessionAndTransaction(
conn, cmdObj, readConcern, shouldBypassCheck) {
const cmdObjWithReadConcern = Object.assign({}, cmdObj, {
readConcern: readConcern,
});
const res = conn.getDB(kDbName).runCommand(cmdObjWithReadConcern);
if (shouldBypassCheck) {
assert.commandWorked(res);
} else {
assert.commandFailedWithCode(res, ErrorCodes.InvalidOptions);
}
}
function testWriteCommandOutsideTransaction(conn, cmdObj, readConcern, shouldBypassCheck) {
const lsid = {id: UUID()};
const cmdObjWithReadConcern = Object.assign({}, cmdObj, {readConcern: readConcern, lsid: lsid});
const res = conn.getDB(kDbName).runCommand(cmdObjWithReadConcern);
if (shouldBypassCheck) {
assert.commandWorked(res);
} else {
assert.commandFailedWithCode(res, ErrorCodes.InvalidOptions);
}
}
function testWriteCommandInsideTransactionFirstCommand(conn, cmdObj, readConcern) {
const lsid = {id: UUID()};
const txnNumber = NumberLong(1);
const cmdObjWithReadConcern = Object.assign({}, cmdObj, {
readConcern: readConcern,
lsid: lsid,
txnNumber: txnNumber,
startTransaction: true,
autocommit: false
});
assert.commandWorked(conn.getDB(kDbName).runCommand(cmdObjWithReadConcern));
assert.commandWorked(conn.getDB(kDbName).adminCommand({
commitTransaction: 1,
lsid: lsid,
txnNumber: txnNumber,
autocommit: false,
writeConcern: {w: "majority"}
}));
}
function testWriteCommandInsideTransactionNotFirstCommand(conn, cmdObj, readConcern, kCollName) {
const lsid = {id: UUID()};
const txnNumber = NumberLong(1);
assert.commandWorked(conn.getDB(kDbName).runCommand({
findAndModify: kCollName,
query: {x: -10},
update: {$set: {z: -10}},
lsid: lsid,
txnNumber: txnNumber,
startTransaction: true,
autocommit: false
}));
const cmdObjWithReadConcern = Object.assign(
{},
cmdObj,
{readConcern: readConcern, lsid: lsid, txnNumber: txnNumber, autocommit: false});
const res = conn.getDB(kDbName).runCommand(cmdObjWithReadConcern);
assert.commandFailedWithCode(res, ErrorCodes.InvalidOptions);
assert.commandWorked(conn.getDB(kDbName).adminCommand({
abortTransaction: 1,
lsid: lsid,
txnNumber: txnNumber,
autocommit: false,
writeConcern: {w: "majority"}
}));
}
function runTest(conn, cmdObj, mongosConn, kCollName) {
const defaultReadConcerns = [
{},
{"level": "local"},
{"level": "majority"},
{"level": "available"},
];
defaultReadConcerns.forEach(defaultReadConcern => {
if ("level" in defaultReadConcern) {
assert.commandWorked(mongosConn.adminCommand({
setDefaultRWConcern: 1,
defaultReadConcern: defaultReadConcern,
}));
jsTest.log("Testing defaultReadConcern " + tojson(defaultReadConcern));
} else {
jsTest.log("Testing without specifying defaultReadConcern");
}
const testCases = [
{supportedInTransaction: true, readConcern: {level: "snapshot"}},
{supportedInTransaction: true, readConcern: {level: "majority"}},
{supportedInTransaction: false, readConcern: {level: "linearizable"}},
{supportedInTransaction: false, readConcern: {level: "available"}},
// "local" is the default readConcern so it is exempt from the check.
{supportedInTransaction: true, readConcern: {level: "local"}, shouldBypassCheck: true}
];
testCases.forEach(testCase => {
jsTest.log("Testing readConcern " + tojson(testCase.readConcern));
testWriteCommandOutsideSessionAndTransaction(
conn, cmdObj, testCase.readConcern, testCase.shouldBypassCheck);
testWriteCommandOutsideTransaction(
conn, cmdObj, testCase.readConcern, testCase.shouldBypassCheck);
if (testCase.supportedInTransaction) {
testWriteCommandInsideTransactionFirstCommand(conn, cmdObj, testCase.readConcern);
testWriteCommandInsideTransactionNotFirstCommand(
conn, cmdObj, testCase.readConcern, kCollName);
}
});
});
}
function runTests(conn, mongosConn, kCollName) {
const kNs = kDbName + "." + kCollName;
// Do an insert to force a refresh so the first transaction doesn't fail due to StaleConfig.
assert.commandWorked(st.s.getCollection(kNs).insert({x: 0}));
jsTest.log("Running insert");
const insertCmdObj = {
insert: kCollName,
documents: [{x: -10}],
};
runTest(conn, insertCmdObj, mongosConn, kCollName);
jsTest.log("Running update");
const updateCmdObj = {
update: kCollName,
updates: [{q: {x: -10}, u: {$set: {y: -10}}}],
};
runTest(conn, updateCmdObj, mongosConn, kCollName);
jsTest.log("Running delete");
const deleteCmdObj = {
delete: kCollName,
deletes: [{q: {x: -10}, limit: 1}],
};
runTest(conn, deleteCmdObj, mongosConn, kCollName);
jsTest.log("Running findAndModify");
const findAndModifyCmdObj = {
findAndModify: kCollName,
query: {x: -10},
update: {$set: {z: -10}},
};
runTest(conn, findAndModifyCmdObj, mongosConn, kCollName);
}
jsTest.log("Running tests against mongod");
const kCollName0 = "testColl0";
runTests(shard0Primary, st.s, kCollName0);
jsTest.log("Running tests against mongos");
const kCollName1 = "testColl1";
runTests(st.s, st.s, kCollName1);
st.stop();
})();
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