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(function() {
'use strict';
var s = new ShardingTest({name: "add_shard1", shards: 1, useHostname: false});
// Create a shard and add a database; if the database is not duplicated the mongod should accept
// it as shard
var conn1 = MongoRunner.runMongod({'shardsvr': ""});
var db1 = conn1.getDB("testDB");
var numObjs = 3;
for (var i = 0; i < numObjs; i++) {
assert.commandWorked(db1.foo.save({a: i}));
}
var configDB = s.s.getDB('config');
assert.eq(null, configDB.databases.findOne({_id: 'testDB'}));
var newShard = "myShard";
assert.commandWorked(
s.admin.runCommand({addshard: "localhost:" + conn1.port, name: newShard, maxSize: 1024}));
assert.neq(null, configDB.databases.findOne({_id: 'testDB'}));
var newShardDoc = configDB.shards.findOne({_id: newShard});
assert.eq(1024, newShardDoc.maxSize);
assert(newShardDoc.topologyTime instanceof Timestamp);
// a mongod with an existing database name should not be allowed to become a shard
var conn2 = MongoRunner.runMongod({'shardsvr': ""});
var db2 = conn2.getDB("otherDB");
assert.commandWorked(db2.foo.save({a: 1}));
var db3 = conn2.getDB("testDB");
assert.commandWorked(db3.foo.save({a: 1}));
s.config.databases.find().forEach(printjson);
var rejectedShard = "rejectedShard";
assert(!s.admin.runCommand({addshard: "localhost:" + conn2.port, name: rejectedShard}).ok,
"accepted mongod with duplicate db");
// Check that all collection that were local to the mongod's are accessible through the mongos
var sdb1 = s.getDB("testDB");
assert.eq(numObjs, sdb1.foo.count(), "wrong count for database that existed before addshard");
var sdb2 = s.getDB("otherDB");
assert.eq(0, sdb2.foo.count(), "database of rejected shard appears through mongos");
// make sure we can move a DB from the original mongod to a previoulsy existing shard
assert.eq(s.normalize(s.config.databases.findOne({_id: "testDB"}).primary),
newShard,
"DB primary is wrong");
var origShard = s.getNonPrimaries("testDB")[0];
s.ensurePrimaryShard("testDB", origShard);
assert.eq(s.normalize(s.config.databases.findOne({_id: "testDB"}).primary),
origShard,
"DB primary didn't move");
assert.eq(
numObjs, sdb1.foo.count(), "wrong count after moving datbase that existed before addshard");
// make sure we can shard the original collections
sdb1.foo.createIndex({a: 1}, {unique: true}); // can't shard populated collection without an index
s.adminCommand({enablesharding: "testDB"});
s.adminCommand({shardcollection: "testDB.foo", key: {a: 1}});
s.adminCommand({split: "testDB.foo", middle: {a: Math.floor(numObjs / 2)}});
assert.eq(2,
s.config.chunks.count({"ns": "testDB.foo"}),
"wrong chunk number after splitting collection that existed before");
assert.eq(numObjs, sdb1.foo.count(), "wrong count after splitting collection that existed before");
MongoRunner.stopMongod(conn1);
MongoRunner.stopMongod(conn2);
s.stop();
})();
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