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(function() {
'use strict';
function placeCheck(num) {
print("shard2 step: " + num);
}
function printAll() {
print("****************");
db.foo.find().forEach(printjsononeline);
print("++++++++++++++++++");
primary.foo.find().forEach(printjsononeline);
print("++++++++++++++++++");
secondary.foo.find().forEach(printjsononeline);
print("---------------------");
}
var s = new ShardingTest({shards: 2});
var db = s.getDB("test");
assert.commandWorked(s.s0.adminCommand({enablesharding: "test"}));
s.ensurePrimaryShard('test', s.shard1.shardName);
assert.commandWorked(s.s0.adminCommand({shardcollection: "test.foo", key: {num: 1}}));
assert.eq(1, s.config.chunks.count({"ns": "test.foo"}), "sanity check 1");
assert.commandWorked(s.s0.adminCommand({split: "test.foo", middle: {num: 0}}));
assert.eq(2, s.config.chunks.count({"ns": "test.foo"}), "should be 2 shards");
var chunks = s.config.chunks.find({"ns": "test.foo"}).toArray();
assert.eq(chunks[0].shard, chunks[1].shard, "server should be the same after a split");
assert.writeOK(db.foo.save({num: 1, name: "eliot"}));
assert.writeOK(db.foo.save({num: 2, name: "sara"}));
assert.writeOK(db.foo.save({num: -1, name: "joe"}));
assert.eq(3,
s.getPrimaryShard("test").getDB("test").foo.find().length(),
"not right directly to db A");
assert.eq(3, db.foo.find().length(), "not right on shard");
var primary = s.getPrimaryShard("test").getDB("test");
var secondary = s.getOther(primary).getDB("test");
assert.eq(3, primary.foo.find().length(), "primary wrong B");
assert.eq(0, secondary.foo.find().length(), "secondary wrong C");
assert.eq(3, db.foo.find().sort({num: 1}).length());
placeCheck(2);
// Test move shard to unexisting shard
assert.commandFailedWithCode(
s.s0.adminCommand(
{movechunk: "test.foo", find: {num: 1}, to: "adasd", _waitForDelete: true}),
ErrorCodes.ShardNotFound);
assert.commandWorked(s.s0.adminCommand({
movechunk: "test.foo",
find: {num: 1},
to: secondary.getMongo().name,
_waitForDelete: true
}));
assert.eq(2, secondary.foo.find().length(), "secondary should have 2 after move shard");
assert.eq(1, primary.foo.find().length(), "primary should only have 1 after move shard");
assert.eq(2,
s.config.chunks.count({"ns": "test.foo"}),
"still should have 2 shards after move not:" + s.getChunksString());
var chunks = s.config.chunks.find({"ns": "test.foo"}).toArray();
assert.neq(chunks[0].shard, chunks[1].shard, "servers should NOT be the same after the move");
placeCheck(3);
// Test inserts go to right server/shard
assert.writeOK(db.foo.save({num: 3, name: "bob"}));
assert.eq(1, primary.foo.find().length(), "after move insert go wrong place?");
assert.eq(3, secondary.foo.find().length(), "after move insert go wrong place?");
assert.writeOK(db.foo.save({num: -2, name: "funny man"}));
assert.eq(2, primary.foo.find().length(), "after move insert go wrong place?");
assert.eq(3, secondary.foo.find().length(), "after move insert go wrong place?");
assert.writeOK(db.foo.save({num: 0, name: "funny guy"}));
assert.eq(2, primary.foo.find().length(), "boundary A");
assert.eq(4, secondary.foo.find().length(), "boundary B");
placeCheck(4);
// findOne
assert.eq("eliot", db.foo.findOne({num: 1}).name);
assert.eq("funny man", db.foo.findOne({num: -2}).name);
// getAll
function sumQuery(c) {
var sum = 0;
c.toArray().forEach(function(z) {
sum += z.num;
});
return sum;
}
assert.eq(6, db.foo.find().length(), "sharded query 1");
assert.eq(3, sumQuery(db.foo.find()), "sharded query 2");
placeCheck(5);
// sort by num
assert.eq(3, sumQuery(db.foo.find().sort({num: 1})), "sharding query w/sort 1");
assert.eq(3, sumQuery(db.foo.find().sort({num: -1})), "sharding query w/sort 2");
assert.eq(
"funny man", db.foo.find().sort({num: 1})[0].name, "sharding query w/sort 3 order wrong");
assert.eq(-2, db.foo.find().sort({num: 1})[0].num, "sharding query w/sort 4 order wrong");
assert.eq("bob", db.foo.find().sort({num: -1})[0].name, "sharding query w/sort 5 order wrong");
assert.eq(3, db.foo.find().sort({num: -1})[0].num, "sharding query w/sort 6 order wrong");
placeCheck(6);
// Sort by name
function getNames(c) {
return c.toArray().map(function(z) {
return z.name;
});
}
var correct = getNames(db.foo.find()).sort();
assert.eq(correct, getNames(db.foo.find().sort({name: 1})));
correct = correct.reverse();
assert.eq(correct, getNames(db.foo.find().sort({name: -1})));
assert.eq(3, sumQuery(db.foo.find().sort({name: 1})), "sharding query w/non-shard sort 1");
assert.eq(3, sumQuery(db.foo.find().sort({name: -1})), "sharding query w/non-shard sort 2");
// sort by num multiple shards per server
assert.commandWorked(s.s0.adminCommand({split: "test.foo", middle: {num: 2}}));
assert.eq("funny man",
db.foo.find().sort({num: 1})[0].name,
"sharding query w/sort and another split 1 order wrong");
assert.eq("bob",
db.foo.find().sort({num: -1})[0].name,
"sharding query w/sort and another split 2 order wrong");
assert.eq("funny man",
db.foo.find({num: {$lt: 100}}).sort({num: 1}).arrayAccess(0).name,
"sharding query w/sort and another split 3 order wrong");
placeCheck(7);
db.foo.find().sort({_id: 1}).forEach(function(z) {
print(z._id);
});
var zzz = db.foo.find().explain("executionStats").executionStats;
assert.eq(0, zzz.totalKeysExamined, "EX1a");
assert.eq(6, zzz.nReturned, "EX1b");
assert.eq(6, zzz.totalDocsExamined, "EX1c");
zzz = db.foo.find().hint({_id: 1}).sort({_id: 1}).explain("executionStats").executionStats;
assert.eq(6, zzz.totalKeysExamined, "EX2a");
assert.eq(6, zzz.nReturned, "EX2b");
assert.eq(6, zzz.totalDocsExamined, "EX2c");
// getMore
assert.eq(4, db.foo.find().limit(-4).toArray().length, "getMore 1");
function countCursor(c) {
var num = 0;
while (c.hasNext()) {
c.next();
num++;
}
return num;
}
assert.eq(6, countCursor(db.foo.find()._exec()), "getMore 2");
assert.eq(6, countCursor(db.foo.find().batchSize(1)._exec()), "getMore 3");
// find by non-shard-key
db.foo.find().forEach(function(z) {
var y = db.foo.findOne({_id: z._id});
assert(y, "_id check 1 : " + tojson(z));
assert.eq(z.num, y.num, "_id check 2 : " + tojson(z));
});
// update
var person = db.foo.findOne({num: 3});
assert.eq("bob", person.name, "update setup 1");
person.name = "bob is gone";
db.foo.update({num: 3}, person);
person = db.foo.findOne({num: 3});
assert.eq("bob is gone", person.name, "update test B");
// remove
assert(db.foo.findOne({num: 3}) != null, "remove test A");
db.foo.remove({num: 3});
assert.isnull(db.foo.findOne({num: 3}), "remove test B");
db.foo.save({num: 3, name: "eliot2"});
person = db.foo.findOne({num: 3});
assert(person, "remove test C");
assert.eq(person.name, "eliot2");
db.foo.remove({_id: person._id});
assert.isnull(db.foo.findOne({num: 3}), "remove test E");
placeCheck(8);
// more update stuff
printAll();
var total = db.foo.find().count();
var res = assert.writeOK(db.foo.update({}, {$inc: {x: 1}}, false, true));
printAll();
assert.eq(total, res.nModified, res.toString());
res = db.foo.update({num: -1}, {$inc: {x: 1}}, false, true);
assert.eq(1, res.nModified, res.toString());
// ---- move all to the secondary
assert.eq(2, s.onNumShards("foo"), "on 2 shards");
secondary.foo.insert({num: -3});
assert.commandWorked(s.s0.adminCommand({
movechunk: "test.foo",
find: {num: -2},
to: secondary.getMongo().name,
_waitForDelete: true
}));
assert.eq(1, s.onNumShards("foo"), "on 1 shards");
assert.commandWorked(s.s0.adminCommand({
movechunk: "test.foo",
find: {num: -2},
to: primary.getMongo().name,
_waitForDelete: true
}));
assert.eq(2, s.onNumShards("foo"), "on 2 shards again");
assert.eq(3, s.config.chunks.count({"ns": "test.foo"}), "only 3 chunks");
print("YO : " + tojson(db.runCommand("serverStatus")));
s.stop();
})();
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