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//
// Basic tests for shardCollection.
//
(function() {
'use strict';
var st = new ShardingTest({mongos: 1, shards: 2});
var kDbName = 'db';
var mongos = st.s0;
function testAndClenaupWithKeyNoIndexFailed(keyDoc) {
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
var ns = kDbName + '.foo';
assert.commandFailed(mongos.adminCommand({shardCollection: ns, key: keyDoc}));
assert.eq(mongos.getDB('config').collections.count({_id: ns, dropped: false}), 0);
mongos.getDB(kDbName).dropDatabase();
}
function testAndClenaupWithKeyOK(keyDoc) {
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
assert.commandWorked(mongos.getDB(kDbName).foo.createIndex(keyDoc));
var ns = kDbName + '.foo';
assert.eq(mongos.getDB('config').collections.count({_id: ns, dropped: false}), 0);
assert.commandWorked(mongos.adminCommand({shardCollection: ns, key: keyDoc}));
assert.eq(mongos.getDB('config').collections.count({_id: ns, dropped: false}), 1);
mongos.getDB(kDbName).dropDatabase();
}
function testAndClenaupWithKeyNoIndexOK(keyDoc) {
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
var ns = kDbName + '.foo';
assert.eq(mongos.getDB('config').collections.count({_id: ns, dropped: false}), 0);
assert.commandWorked(mongos.adminCommand({shardCollection: ns, key: keyDoc}));
assert.eq(mongos.getDB('config').collections.count({_id: ns, dropped: false}), 1);
mongos.getDB(kDbName).dropDatabase();
}
// Fail if db is not sharded.
assert.commandFailed(mongos.adminCommand({shardCollection: kDbName + '.foo', key: {_id: 1}}));
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
// Fail if db is not sharding enabled.
assert.commandFailed(mongos.adminCommand({shardCollection: kDbName + '.foo', key: {_id: 1}}));
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
// Verify wrong arguments errors.
assert.commandFailed(mongos.adminCommand({shardCollection: 'foo', key: {_id: 1}}));
assert.commandFailed(mongos.adminCommand({shardCollection: 'foo', key: "aaa"}));
// shardCollection may only be run against admin database.
assert.commandFailed(
mongos.getDB('test').runCommand({shardCollection: kDbName + '.foo', key: {_id: 1}}));
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
// Can't shard if key is not specified.
assert.commandFailed(mongos.adminCommand({shardCollection: kDbName + '.foo'}));
assert.commandFailed(mongos.adminCommand({shardCollection: kDbName + '.foo', key: {}}));
// Verify key format
assert.commandFailed(
mongos.adminCommand({shardCollection: kDbName + '.foo', key: {aKey: "hahahashed"}}));
// Error if a collection is already sharded.
assert.commandWorked(mongos.adminCommand({shardCollection: kDbName + '.foo', key: {_id: 1}}));
assert.commandFailed(mongos.adminCommand({shardCollection: kDbName + '.foo', key: {_id: 1}}));
mongos.getDB(kDbName).dropDatabase();
// Shard empty collections no index required.
testAndClenaupWithKeyNoIndexOK({_id: 1});
testAndClenaupWithKeyNoIndexOK({_id: 'hashed'});
// Shard by a plain key.
testAndClenaupWithKeyNoIndexOK({a: 1});
// Cant shard collection with data and no index on the shard key.
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
testAndClenaupWithKeyNoIndexFailed({a: 1});
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
testAndClenaupWithKeyOK({a: 1});
// Shard by a hashed key.
testAndClenaupWithKeyNoIndexOK({a: 'hashed'});
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
testAndClenaupWithKeyNoIndexFailed({a: 'hashed'});
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
testAndClenaupWithKeyOK({a: 'hashed'});
// Shard by a compound key.
testAndClenaupWithKeyNoIndexOK({x: 1, y: 1});
assert.writeOK(mongos.getDB(kDbName).foo.insert({x: 1, y: 1}));
testAndClenaupWithKeyNoIndexFailed({x: 1, y: 1});
assert.writeOK(mongos.getDB(kDbName).foo.insert({x: 1, y: 1}));
testAndClenaupWithKeyOK({x: 1, y: 1});
testAndClenaupWithKeyNoIndexFailed({x: 'hashed', y: 1});
testAndClenaupWithKeyNoIndexFailed({x: 'hashed', y: 'hashed'});
// Shard by a key component.
testAndClenaupWithKeyOK({'z.x': 1});
testAndClenaupWithKeyOK({'z.x': 'hashed'});
// Can't shard by a multikey.
assert.commandWorked(mongos.getDB(kDbName).foo.createIndex({a: 1}));
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: [1, 2, 3, 4, 5], b: 1}));
testAndClenaupWithKeyNoIndexFailed({a: 1});
assert.commandWorked(mongos.getDB(kDbName).foo.createIndex({a: 1, b: 1}));
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: [1, 2, 3, 4, 5], b: 1}));
testAndClenaupWithKeyNoIndexFailed({a: 1, b: 1});
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
testAndClenaupWithKeyNoIndexFailed({a: 'hashed'});
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: 1, b: 1}));
testAndClenaupWithKeyOK({a: 'hashed'});
// Cant shard by a parallel arrays.
assert.writeOK(mongos.getDB(kDbName).foo.insert({a: [1, 2, 3, 4, 5], b: [1, 2, 3, 4, 5]}));
testAndClenaupWithKeyNoIndexFailed({a: 1, b: 1});
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
// Can't shard on unique hashed key.
assert.commandFailed(mongos.adminCommand(
{shardCollection: kDbName + '.foo', key: {aKey: "hashed"}, unique: true}));
// If shardCollection has unique:true it must have a unique index.
assert.commandWorked(mongos.getDB(kDbName).foo.createIndex({aKey: 1}));
assert.commandFailed(
mongos.adminCommand({shardCollection: kDbName + '.foo', key: {aKey: 1}, unique: true}));
st.stop();
})();
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