Files
mongo/jstests/hooks/run_check_repl_dbhash.js

99 lines
3.9 KiB
JavaScript

// Runner for checkDBHashes() that runs the dbhash command on all replica set nodes
// to ensure all nodes have the same data.
'use strict';
(function() {
// A thin wrapper around master/slave nodes that provides the getHashes(), getPrimary(),
// awaitReplication(), and nodeList() methods.
// DEPRECATED: this wrapper only supports nodes started through resmoke's masterslave.py
// fixture. Please do not use it with other master/slave clusters.
var MasterSlaveDBHashTest = function(primaryHost) {
var master = new Mongo(primaryHost);
var masterPort = master.host.split(':')[1];
var slave = new Mongo('localhost:' + String(parseInt(masterPort) + 1));
this.nodeList = function() {
return [master.host, slave.host];
};
this.getHashes = function(db) {
var combinedRes = {};
var res = master.getDB(db).runCommand("dbhash");
assert.commandWorked(res);
combinedRes.master = res;
res = slave.getDB(db).runCommand("dbhash");
assert.commandWorked(res);
combinedRes.slaves = [res];
return combinedRes;
};
this.getPrimary = function() {
slave.setSlaveOk();
this.liveNodes = {master: master, slaves: [slave]};
return master;
};
this.getSecondaries = function() {
return [slave];
};
this.awaitReplication = function() {
assert.commandWorked(master.adminCommand({fsyncUnlock: 1}),
'failed to unlock the primary');
print('Starting fsync on master to flush all pending writes');
assert.commandWorked(master.adminCommand({fsync: 1}));
print('fsync on master completed');
var timeout = 60 * 1000 * 5; // 5min timeout
var dbNames = master.getDBNames();
print('Awaiting replication of inserts into ' + dbNames);
for (var dbName of dbNames) {
if (dbName === 'local')
continue;
assert.writeOK(master.getDB(dbName).await_repl.insert(
{awaiting: 'repl'}, {writeConcern: {w: 2, wtimeout: timeout}}),
'Awaiting replication failed');
}
print('Finished awaiting replication');
assert.commandWorked(master.adminCommand({fsync: 1, lock: 1}),
'failed to re-lock the primary');
};
this.checkReplicatedDataHashes = function() {
ReplSetTest({nodes: 0}).checkReplicatedDataHashes.apply(this, arguments);
};
this.checkReplicaSet = function() {
ReplSetTest({nodes: 0}).checkReplicaSet.apply(this, arguments);
};
};
var startTime = Date.now();
assert.neq(typeof db, 'undefined', 'No `db` object, is the shell connected to a mongod?');
var primaryInfo = db.isMaster();
assert(primaryInfo.ismaster,
'shell is not connected to the primary or master node: ' + tojson(primaryInfo));
var cmdLineOpts = db.adminCommand('getCmdLineOpts');
assert.commandWorked(cmdLineOpts);
var isMasterSlave = cmdLineOpts.parsed.master === true;
var testFixture = isMasterSlave ? new MasterSlaveDBHashTest(db.getMongo().host)
: new ReplSetTest(db.getMongo().host);
var excludedDBs = jsTest.options().excludedDBsFromDBHash || [];
// Since UUIDs aren't explicitly replicated in master-slave deployments, we ignore the UUID in
// the output of the "listCollections" command to avoid reporting a known data inconsistency
// issue from checkReplicatedDataHashes().
var ignoreUUIDs = isMasterSlave;
testFixture.checkReplicatedDataHashes(undefined, excludedDBs, ignoreUUIDs);
var totalTime = Date.now() - startTime;
print('Finished consistency checks of cluster in ' + totalTime + ' ms.');
})();