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// Test parsing of readConcern level 'snapshot'.
// @tags: [requires_replication,requires_sharding]
(function() {
"use strict";
const dbName = "test";
const collName = "coll";
let st = new ShardingTest({shards: 1, rs: {nodes: 2}, config: 2, mongos: 1});
let testDB = st.getDB(dbName);
let coll = testDB.coll;
// noPassthrough tests
// readConcern 'snapshot' is not allowed outside session context.
assert.commandFailedWithCode(
testDB.runCommand({find: collName, readConcern: {level: "snapshot"}}),
ErrorCodes.InvalidOptions);
let session = testDB.getMongo().startSession({causalConsistency: false});
let sessionDb = session.getDatabase(dbName);
// readConcern 'snapshot' is not allowed outside transaction context.
assert.commandFailedWithCode(sessionDb.runCommand({
find: collName,
readConcern: {level: "snapshot"},
}),
ErrorCodes.InvalidOptions);
// readConcern 'snapshot' is not allowed with 'atClusterTime'.
let pingRes = assert.commandWorked(st.s0.adminCommand({ping: 1}));
assert(pingRes.hasOwnProperty("$clusterTime"), tojson(pingRes));
assert(pingRes.$clusterTime.hasOwnProperty("clusterTime"), tojson(pingRes));
const clusterTime = pingRes.$clusterTime.clusterTime;
let txnNumber = 0;
assert.commandFailedWithCode(sessionDb.runCommand({
find: collName,
readConcern: {level: "snapshot", atClusterTime: clusterTime},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// readConcern 'snapshot' is not supported by insert on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
insert: collName,
documents: [{_id: "single-insert"}],
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// readConcern 'snapshot' is not supported by update on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
update: collName,
updates: [{q: {_id: 0}, u: {$inc: {a: 1}}}],
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// readConcern 'snapshot' is not supported by delete on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
delete: collName,
deletes: [{q: {}, limit: 1}],
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// readConcern 'snapshot' is not supported by findAndModify on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
findAndModify: collName,
filter: {},
update: {$set: {a: 1}},
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// readConcern 'snapshot' is not supported by non-CRUD commands.
assert.commandFailedWithCode(sessionDb.runCommand({
createIndexes: collName,
indexes: [{key: {a: 1}, name: "a_1"}],
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// Passthrough tests. There are parts not implemented on mongod and mongos, they are tracked by
// separate jiras
assert.commandWorked(sessionDb.coll.insert({}, {w: 2}));
assert.commandWorked(coll.createIndex({geo: "2d"}));
assert.commandWorked(coll.createIndex({haystack: "geoHaystack", a: 1}, {bucketSize: 1}));
// Passthrough tests that are not implemented yet.
//
// readConcern 'snapshot' is allowed with 'afterClusterTime'.
// TODO SERVER-33028: Add snapshot support for cluster find on mongos and check for
// commandWorked.
assert.commandFailedWithCode(sessionDb.runCommand({
find: collName,
readConcern: {level: "snapshot", afterClusterTime: clusterTime},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// TODO SERVER-33028: Add snapshot support for cluster find on mongos.
assert.commandFailedWithCode(
sessionDb.runCommand(
{find: collName, readConcern: {level: "snapshot"}, txnNumber: NumberLong(txnNumber++)}),
ErrorCodes.InvalidOptions);
// TODO SERVER-33709: Add snapshot support for cluster count on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
count: collName,
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// TODO SERVER-33354: Add snapshot support for aggregate on mongod.
// TODO SERVER-33029: Add snapshot support for aggregate on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
aggregate: collName,
pipeline: [],
cursor: {},
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// TODO SERVER-33354: Add snapshot support for distinct on mongod.
// TODO SERVER-33710: Add snapshot support for distinct on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
distinct: collName,
key: "x",
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// TODO SERVER-33354: Add snapshot support for geoNear on mongod.
// TODO SERVER-33712: Add snapshot support for geoNear on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
geoNear: collName,
near: [0, 0],
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
// TODO SERVER-33354: Add snapshot support for group on mongod.
// TODO SERVER-33711: Add snapshot support for group on mongos.
assert.commandFailedWithCode(sessionDb.runCommand({
group: {ns: collName, key: {_id: 1}, $reduce: function(curr, result) {}, initial: {}},
readConcern: {level: "snapshot"},
txnNumber: NumberLong(txnNumber++)
}),
ErrorCodes.InvalidOptions);
st.stop();
}());
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