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// This test requires persistence because it assumes standalone shards will still have their data
// after restarting.
// @tags: [requires_persistence]
(function() {
'use strict';
var st = new ShardingTest({name: "write_commands", mongos: 2, shards: 2});
var dbTestName = 'WriteCommandsTestDB';
assert.commandWorked(st.s0.adminCommand({enablesharding: dbTestName}));
st.ensurePrimaryShard(dbTestName, 'shard0000');
assert.commandWorked(st.s0.adminCommand(
{shardCollection: dbTestName + '.TestColl', key: {Key: 1}, unique: true}));
// Split at keys 10 and 20
assert.commandWorked(st.s0.adminCommand({split: dbTestName + '.TestColl', middle: {Key: 10}}));
assert.commandWorked(st.s0.adminCommand({split: dbTestName + '.TestColl', middle: {Key: 20}}));
printjson(st.config.getSiblingDB('config').chunks.find().toArray());
// Move < 10 to shard0000, 10 and 20 to shard00001
st.s0.adminCommand({moveChunk: dbTestName + '.TestColl', find: {Key: 0}, to: 'shard0000'});
st.s0.adminCommand({moveChunk: dbTestName + '.TestColl', find: {Key: 19}, to: 'shard0001'});
st.s0.adminCommand({moveChunk: dbTestName + '.TestColl', find: {Key: 21}, to: 'shard0001'});
printjson(st.config.getSiblingDB('config').chunks.find().toArray());
// Insert one document in each chunk, which we will use to change
assert(st.s1.getDB(dbTestName).TestColl.insert({Key: 1}));
assert(st.s1.getDB(dbTestName).TestColl.insert({Key: 11}));
assert(st.s1.getDB(dbTestName).TestColl.insert({Key: 21}));
// Make sure the documents are correctly placed
printjson(st.d0.getDB(dbTestName).TestColl.find().toArray());
printjson(st.d1.getDB(dbTestName).TestColl.find().toArray());
assert.eq(1, st.d0.getDB(dbTestName).TestColl.count());
assert.eq(2, st.d1.getDB(dbTestName).TestColl.count());
assert.eq(1, st.d0.getDB(dbTestName).TestColl.find({Key: 1}).count());
assert.eq(1, st.d1.getDB(dbTestName).TestColl.find({Key: 11}).count());
assert.eq(1, st.d1.getDB(dbTestName).TestColl.find({Key: 21}).count());
// Move chunk [0, 19] to shard0000 and make sure the documents are correctly placed
st.s0.adminCommand({moveChunk: dbTestName + '.TestColl', find: {Key: 19}, to: 'shard0000'});
printjson(st.config.getSiblingDB('config').chunks.find().toArray());
printjson(st.d0.getDB(dbTestName).TestColl.find({}).toArray());
printjson(st.d1.getDB(dbTestName).TestColl.find({}).toArray());
// Now restart all mongod instances, so they don't know yet that they are sharded
st.restartMongod(0);
st.restartMongod(1);
// Now that both mongod shards are restarted, they don't know yet that they are part of a
// sharded
// cluster until they get a setShardVerion command. Mongos instance s1 has stale metadata and
// doesn't know that chunk with key 19 has moved to shard0000 so it will send it to shard0001 at
// first.
//
// Shard0001 would only send back a stale config exception if it receives a setShardVersion
// command. The bug that this test validates is that setShardVersion is indeed being sent (for
// more
// information, see SERVER-19395).
st.s1.getDB(dbTestName).TestColl.update({Key: 11}, {$inc: {Counter: 1}}, {upsert: true});
printjson(st.d0.getDB(dbTestName).TestColl.find({}).toArray());
printjson(st.d1.getDB(dbTestName).TestColl.find({}).toArray());
assert.eq(2, st.d0.getDB(dbTestName).TestColl.count());
assert.eq(1, st.d1.getDB(dbTestName).TestColl.count());
assert.eq(1, st.d0.getDB(dbTestName).TestColl.find({Key: 1}).count());
assert.eq(1, st.d0.getDB(dbTestName).TestColl.find({Key: 11}).count());
assert.eq(1, st.d1.getDB(dbTestName).TestColl.find({Key: 21}).count());
st.stop();
})();
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