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/**
* Tests count and distinct using secondaryOk. Also tests a scenario querying a set where only one
* secondary is up.
*/
// This test shuts down a shard's node and because of this consistency checking
// cannot be performed on that node, which causes the consistency checker to fail.
TestData.skipCheckingUUIDsConsistentAcrossCluster = true;
TestData.skipCheckingIndexesConsistentAcrossCluster = true;
TestData.skipCheckOrphans = true;
(function() {
'use strict';
load("jstests/replsets/rslib.js");
var st = new ShardingTest({shards: 1, mongos: 1, other: {rs: true, rs0: {nodes: 2}}});
var rst = st.rs0;
// Insert data into replica set
var conn = new Mongo(st.s.host);
var coll = conn.getCollection('test.countSecondaryOk');
coll.drop();
var bulk = coll.initializeUnorderedBulkOp();
for (var i = 0; i < 300; i++) {
bulk.insert({i: i % 10});
}
assert.commandWorked(bulk.execute());
var connA = conn;
var connB = new Mongo(st.s.host);
var connC = new Mongo(st.s.host);
st.printShardingStatus();
// Wait for client to update itself and replication to finish
rst.awaitReplication();
var primary = rst.getPrimary();
var sec = rst.getSecondary();
// Need to check secondaryOk=true first, since secondaryOk=false will destroy conn in pool when
// primary is down.
conn.setSecondaryOk();
// Do a read concern "local" read so that the secondary refreshes its dbVersion before we shut down
// the primary.
coll.runCommand("find", {readConcern: {level: "local"}});
// Data now inserted... stop the primary, since only two in set, other will still be secondary
rst.stop(rst.getPrimary());
printjson(rst.status());
// Wait for the mongos to recognize the secondary
awaitRSClientHosts(conn, sec, {ok: true, secondary: true});
// Make sure that mongos realizes that primary is already down
awaitRSClientHosts(conn, primary, {ok: false});
// count using the command path
assert.eq(30, coll.find({i: 0}).count());
// count using the query path
assert.eq(30, coll.find({i: 0}).itcount());
assert.eq(10, coll.distinct("i").length);
try {
conn.setSecondaryOk(false);
// Should throw exception, since not secondaryOk'd
coll.find({i: 0}).count();
print("Should not reach here!");
assert(false);
} catch (e) {
print("Non-secondaryOk'd connection failed.");
}
st.stop();
})();
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