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(function() {
"use strict";
/**
* Test that queries will be properly routed after executing a write that does not
* perform any shard version checks.
*/
var runTest = function(writeFunc) {
var st = new ShardingTest({shards: 2, mongos: 2});
var testDB = st.s.getDB('test');
testDB.dropDatabase();
assert.commandWorked(testDB.adminCommand({enableSharding: 'test'}));
st.ensurePrimaryShard('test', st.shard0.shardName);
assert.commandWorked(testDB.adminCommand({shardCollection: 'test.user', key: {x: 1}}));
assert.commandWorked(testDB.adminCommand({split: 'test.user', middle: {x: 0}}));
assert.commandWorked(testDB.adminCommand(
{moveChunk: 'test.user', find: {x: 0}, to: st.shard1.shardName, _waitForDelete: true}));
var testDB2 = st.s1.getDB('test');
testDB2.user.insert({x: 123456});
// Move chunk to bump version on a different mongos.
assert.commandWorked(testDB.adminCommand(
{moveChunk: 'test.user', find: {x: 0}, to: st.shard0.shardName, _waitForDelete: true}));
// Issue a query and make sure it gets routed to the right shard.
assert.neq(null, testDB2.user.findOne({x: 123456}));
// At this point, s1 thinks the version of 'test.user' is 2, bounce it again so it gets
// incremented to 3
assert.commandWorked(testDB.adminCommand(
{moveChunk: 'test.user', find: {x: 0}, to: st.shard1.shardName, _waitForDelete: true}));
// Issue a query and make sure it gets routed to the right shard again.
assert.neq(null, testDB2.user.findOne({x: 123456}));
// At this point, s0 thinks the version of 'test.user' is 3, bounce it again so it gets
// incremented to 4
assert.commandWorked(testDB.adminCommand(
{moveChunk: 'test.user', find: {x: 0}, to: st.shard0.shardName, _waitForDelete: true}));
// Ensure that write commands with multi version do not reset the connection shard version
// to
// ignored.
writeFunc(testDB2);
assert.neq(null, testDB2.user.findOne({x: 123456}));
st.stop();
};
runTest(function(db) {
db.user.update({}, {$inc: {y: 987654}}, false, true);
});
runTest(function(db) {
db.user.remove({y: 'noMatch'}, false);
});
})();
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