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/**
* Checks that issuing a metadata command 1) through mongos or 2) directly against the config server
* with a non-majority writeConcern fails.
*/
(function() {
'use strict';
const dbName = "test";
const collName = "foo";
const ns = dbName + "." + collName;
const newShardName = "newShard";
const unacceptableWriteConcerns = [
{writeConcern: {w: 0}},
{writeConcern: {w: 1}},
{writeConcern: {w: 2}},
{writeConcern: {w: 3}},
// TODO: should metadata commands allow j: false? can CSRS have an in-memory storage engine?
// writeConcern{w: "majority", j: "false"}},
];
const acceptableWriteConcerns = [
{},
{writeConcern: {w: "majority"}},
{writeConcern: {w: "majority", j: true}},
{writeConcern: {w: "majority", j: true, wtimeout: 15000}},
];
const setupFuncs = {
noop: function() {},
createDatabase: function() {
// A database is implicitly created when a collection within it is created.
assert.commandWorked(st.s.getDB(dbName).runCommand({create: collName}));
},
enableSharding: function() {
assert.commandWorked(st.s.adminCommand({enableSharding: dbName}));
},
addShard: function() {
assert.commandWorked(st.s.adminCommand({addShard: newShard.name, name: newShardName}));
},
};
const cleanupFuncs = {
noop: function() {},
dropDatabase: function() {
assert.commandWorked(st.s.getDB(dbName).runCommand({dropDatabase: 1}));
},
removeShardIfExists: function() {
var res = st.s.adminCommand({removeShard: newShardName});
if (!res.ok && res.code == ErrorCodes.ShardNotFound) {
return;
}
assert.commandWorked(res);
assert.eq('started', res.state);
res = st.s.adminCommand({removeShard: newShardName});
assert.commandWorked(res);
assert.eq('completed', res.state);
},
};
function checkCommand(conn, command, setupFunc, cleanupFunc) {
unacceptableWriteConcerns.forEach(function(writeConcern) {
jsTest.log("testing " + tojson(command) + " with writeConcern " + tojson(writeConcern) +
" against " + conn + ", expecting the command to fail");
setupFunc();
let commandWithWriteConcern = {};
Object.assign(commandWithWriteConcern, command, writeConcern);
assert.commandFailedWithCode(conn.adminCommand(commandWithWriteConcern),
ErrorCodes.InvalidOptions);
cleanupFunc();
});
acceptableWriteConcerns.forEach(function(writeConcern) {
jsTest.log("testing " + tojson(command) + " with writeConcern " + tojson(writeConcern) +
" against " + conn + ", expecting the command to succeed");
setupFunc();
let commandWithWriteConcern = {};
Object.assign(commandWithWriteConcern, command, writeConcern);
assert.commandWorked(conn.adminCommand(commandWithWriteConcern));
cleanupFunc();
});
}
var st = new ShardingTest({shards: 1});
// enableSharding
checkCommand(st.s, {enableSharding: dbName}, setupFuncs.noop, cleanupFuncs.dropDatabase);
checkCommand(st.configRS.getPrimary(),
{_configsvrEnableSharding: dbName},
setupFuncs.noop,
cleanupFuncs.dropDatabase);
// movePrimary
checkCommand(st.s,
{movePrimary: dbName, to: st.shard0.name},
setupFuncs.createDatabase,
cleanupFuncs.dropDatabase);
checkCommand(st.configRS.getPrimary(),
{_configsvrMovePrimary: dbName, to: st.shard0.name},
setupFuncs.createDatabase,
cleanupFuncs.dropDatabase);
// shardCollection
checkCommand(st.s,
{shardCollection: ns, key: {_id: 1}},
setupFuncs.enableSharding,
cleanupFuncs.dropDatabase);
checkCommand(st.configRS.getPrimary(),
{_configsvrShardCollection: ns, key: {_id: 1}},
setupFuncs.enableSharding,
cleanupFuncs.dropDatabase);
// createDatabase
// Don't check createDatabase against mongos: there is no createDatabase command exposed on
// mongos; a database is created implicitly when a collection in it is created.
checkCommand(st.configRS.getPrimary(),
{_configsvrCreateDatabase: dbName, to: st.shard0.name},
setupFuncs.noop,
cleanupFuncs.dropDatabase);
// addShard
var newShard = MongoRunner.runMongod({shardsvr: ""});
checkCommand(st.s,
{addShard: newShard.name, name: newShardName},
setupFuncs.noop,
cleanupFuncs.removeShardIfExists);
checkCommand(st.configRS.getPrimary(),
{_configsvrAddShard: newShard.name, name: newShardName},
setupFuncs.noop,
cleanupFuncs.removeShardIfExists);
// removeShard
checkCommand(st.s, {removeShard: newShardName}, setupFuncs.addShard, cleanupFuncs.noop);
checkCommand(st.configRS.getPrimary(),
{_configsvrRemoveShard: newShardName},
setupFuncs.addShard,
cleanupFuncs.noop);
st.stop();
})();
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