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var StandaloneFixture, ShardedFixture, runReadOnlyTest, zip2, cycleN;
(function() {
"use strict";
StandaloneFixture = function() {};
StandaloneFixture.prototype.runLoadPhase = function runLoadPhase(test) {
this.mongod = MongoRunner.runMongod({});
this.dbpath = this.mongod.dbpath;
test.load(this.mongod.getDB("test")[test.name]);
assert.commandWorked(this.mongod.getDB("local").dropDatabase());
MongoRunner.stopMongod(this.mongod);
};
StandaloneFixture.prototype.runExecPhase = function runExecPhase(test) {
var options = {queryableBackupMode: "", noCleanData: true, dbpath: this.dbpath};
this.mongod = MongoRunner.runMongod(options);
assert.neq(this.mongod, null);
test.exec(this.mongod.getDB("test")[test.name]);
MongoRunner.stopMongod(this.mongod);
};
ShardedFixture = function() {
this.nShards = 3;
this.nConfigs = 3;
};
ShardedFixture.prototype.runLoadPhase = function runLoadPhase(test) {
this.st =
new ShardingTest({mongos: 1, config: this.nConfigs, shards: this.nShards, rs: {nodes: 1}});
// This information will be needed later on to set up the shards on read only mode.
this.dbPaths = [];
this.ports = [];
this.hosts = [];
for (let i = 0; i < this.nShards; ++i) {
let primary = this.st["rs" + i].getPrimary();
this.dbPaths.push(primary.dbpath);
this.ports.push(primary.port);
this.hosts.push(primary.host);
}
jsTest.log("sharding test collection...");
// Use a hashed shard key so we actually hit multiple shards.
this.st.shardColl(test.name, {_id: "hashed"}, false);
test.load(this.st.getDB("test")[test.name]);
};
ShardedFixture.prototype.runExecPhase = function runExecPhase(test) {
const docs = [{_id: 1}];
let shardIdentities = [];
let readOnlyShards = [];
let operationTimes = [];
for (let i = 0; i < this.nShards; ++i) {
let primary = this.st["rs" + i].getPrimary();
shardIdentities.push(
primary.getDB("admin").getCollection("system.version").findOne({_id: "shardIdentity"}));
assert.neq(null, shardIdentities[i]);
// Get operation time so the read only shard recover all the info.
operationTimes.push(
assert
.commandWorked(primary.getDB('_temporary_db')
.runCommand({insert: '_temporary_coll' + i, documents: docs}))
.operationTime);
}
this.st.stopAllShards({noCleanData: true, restart: true, skipValidations: true});
jsTest.log("Restarting shards as read only standalone instances...");
for (let i = 0; i < this.nShards; ++i) {
let dbPath = this.dbPaths[i];
let port = this.ports[i];
let operationTime = operationTimes[i];
jsTestLog("Renaming local.system collection on shard " + i);
let tempMongod =
MongoRunner.runMongod({port: port, dbpath: dbPath, noReplSet: true, noCleanData: true});
// Rename the local.system collection to prevent problems with replset configurations.
tempMongod.getDB('local').getCollection('system').renameCollection('_system');
MongoRunner.stopMongod(tempMongod, {noCleanData: true, skipValidations: true, wait: true});
let shardIdentity = shardIdentities[i];
let host = this.hosts[i];
// Change the connection string format so the router can create a standalone targeter
// instead of a replica set targeter.
this.st.config.shards.update({_id: shardIdentity.shardName}, {$set: {host: host}});
// Restart the shard as standalone on read only mode.
let configFileStr = "sharding:\n _overrideShardIdentity: '" +
tojson(shardIdentity).replace(/\s+/g, ' ') + "'";
// Use the os-specific path delimiter.
jsTestLog('Seting up shard ' + i + ' with new shard identity ' + tojson(shardIdentity));
let delim = _isWindows() ? '\\' : '/';
let configFilePath = dbPath + delim + "config-for-shard-" + i + ".yml";
writeFile(configFilePath, configFileStr);
readOnlyShards.push(MongoRunner.runMongod({
config: configFilePath,
dbpath: dbPath,
port: port,
queryableBackupMode: "",
restart: true,
shardsvr: "",
setParameter: {recoverToOplogTimestamp: tojson({timestamp: operationTime})}
}));
}
// Restart the config server and the router so they can reload the shard registry.
jsTest.log("Restarting the config server...");
for (let i = 0; i < this.nConfig; ++i) {
this.st.restartConfigServer(i);
}
jsTest.log("Restarting mongos...");
this.st.restartMongos(0);
test.exec(this.st.getDB("test")[test.name]);
for (let i = 0; i < this.nShards; ++i) {
let dbPath = this.dbPaths[i];
let port = this.ports[i];
// Stop the read only shards.
MongoRunner.stopMongod(readOnlyShards[i],
{noCleanData: true, skipValidations: true, wait: true});
// Run a temporary mongod to rename the local.system collection.
let tempMongod =
MongoRunner.runMongod({port: port, dbpath: dbPath, noReplSet: true, noCleanData: true});
tempMongod.getDB('local').getCollection('_system').renameCollection('system', true);
MongoRunner.stopMongod(tempMongod, {noCleanData: true, skipValidations: true, wait: true});
let shardIdentity = shardIdentities[i];
let host = this.hosts[i];
this.st.config.shards.update({_id: shardIdentity.shardName},
{$set: {host: shardIdentity.shardName + '/' + host}});
// Restart the shard to have a well behaved departure.
this.st.restartShardRS(i);
}
// Restart the config server and the router so the shard registry refreshes and enable the RSM
// again.
for (let i = 0; i < this.nConfigs; ++i) {
this.st.restartConfigServer(i);
}
this.st.restartMongos(0);
this.st.stop();
};
runReadOnlyTest = function(test) {
printjson(test);
assert.eq(typeof (test.exec), "function");
assert.eq(typeof (test.load), "function");
assert.eq(typeof (test.name), "string");
var fixtureType = TestData.fixture || "standalone";
var fixture = null;
if (fixtureType === "standalone") {
fixture = new StandaloneFixture();
} else if (fixtureType === "sharded") {
fixture = new ShardedFixture();
} else {
throw new Error("fixtureType must be one of either 'standalone' or 'sharded'");
}
jsTest.log("starting load phase for test: " + test.name);
fixture.runLoadPhase(test);
jsTest.log("starting execution phase for test: " + test.name);
fixture.runExecPhase(test);
};
cycleN = function*(arr, N) {
for (var i = 0; i < N; ++i) {
yield arr[i % arr.length];
}
};
zip2 = function*(iter1, iter2) {
var n1 = iter1.next();
var n2 = iter2.next();
while (!n1.done || !n2.done) {
var res = [];
if (!n1.done) {
res.push(n1.value);
n1 = iter1.next();
}
if (!n2.done) {
res.push(n2.value);
n2 = iter2.next();
}
yield res;
}
};
}());
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