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/**
* Test the upgrade/downgrade process for the last stable release <~~> the latest release with both
* the mmapv1 and wiredTiger storage engines. Repeat the process with --directoryperdb set.
*/
(function() {
"use strict";
jsTestLog("Setting up initial data set with the last stable version of mongod");
var toolTest = new ToolTest('transitioning_to_and_from_WT', {
binVersion: MongoRunner.getBinVersionFor("last-stable"),
storageEngine: "mmapv1",
});
toolTest.dbpath = toolTest.root + "/original/";
resetDbpath(toolTest.dbpath);
assert(mkdir(toolTest.dbpath));
toolTest.startDB('foo');
// where we'll put the dump
var dumpTarget = toolTest.root + '/transitioning_to_and_from_WT_dump/';
// the db and collections we'll be using
var testDB = toolTest.db.getSiblingDB('test');
var longName = "this_name_is_just_63_characters_because_that_is_the_name_limit";
var testColl = testDB.coll;
testDB.createCollection("capped", {capped: true, size: 10000});
var testCapped = testDB.capped;
// test database and collection lengths to make sure they work correctly in latest and with WT
var longDB = toolTest.db.getSiblingDB(longName);
var longColl = longDB.collection_name_is_lengthed_to_reach_namespace_max_of_123;
longColl.insert({x: 1});
// insert some documents
for (var i = 0; i < 50; i++) {
if (i < 10) {
testCapped.insert({x: i});
}
testColl.insert({x: i});
}
// create an index
testColl.ensureIndex({x: 1}, {name: "namedIndex"});
// sanity check the insert worked
var indexes = testColl.getIndexes();
assert.eq(50, testColl.count());
assert.eq(2, indexes.length);
assert(indexes[0].name === "namedIndex" || indexes[1].name === "namedIndex");
assert.eq(10, testCapped.count());
assert(testCapped.isCapped());
assert.eq(1, longColl.count());
// Transition from the last stable version with mmapv1...
var modes = [
// to the latest version with wiredTiger
{
binVersion: "latest",
storageEngine: "wiredTiger",
},
// back to the last stable version with mmapv1
{
binVersion: "last-stable",
storageEngine: "mmapv1",
},
// to the latest version with mmapv1
{
binVersion: "latest",
storageEngine: "mmapv1",
},
// to latest version with wiredTiger
{
binVersion: "latest",
storageEngine: "wiredTiger",
},
// back to the latest version with mmapv1
{
binVersion: "latest",
storageEngine: "mmapv1",
},
// to the last stable version with mmapv1 and directory per db
{
binVersion: "last-stable",
storageEngine: "mmapv1",
directoryperdb: "",
},
// to the latest version with wiredTiger
{
binVersion: "latest",
storageEngine: "wiredTiger",
},
// back to the last stable version with mmapv1 and directory per db
{
binVersion: "last-stable",
storageEngine: "mmapv1",
directoryperdb: "",
},
// to latest version with mmapv1 and directory per db
{
binVersion: "latest",
storageEngine: "mmapv1",
directoryperdb: "",
},
// to the latest with wiredTiger
{
binVersion: "latest",
storageEngine: "wiredTiger",
},
// back to latest version with mmapv1 and directory per db
{
binVersion: "latest",
storageEngine: "mmapv1",
directoryperdb: "",
},
];
modes.forEach(function(entry, idx) {
jsTestLog("moving to: " + tojson(entry));
// dump the data
resetDbpath(dumpTarget);
var ret = toolTest.runTool('dump', '--out', dumpTarget);
assert.eq(0, ret);
// stop previous mongod
MongoRunner.stopMongod(toolTest.port);
// clear old node configuration info
toolTest.m = null;
toolTest.db = null;
// set up new node configuration info
toolTest.options.binVersion = MongoRunner.getBinVersionFor(entry.binVersion);
toolTest.dbpath =
toolTest.root + "/" + idx + "-" + entry.binVersion + "-" + entry.storageEngine + "/";
if (entry.hasOwnProperty("storageEngine")) {
toolTest.options.storageEngine = entry.storageEngine;
}
if (entry.hasOwnProperty("directoryperdb")) {
toolTest.options.directoryperdb = entry.directoryperdb;
}
// create the unique dbpath for this instance and start the mongod
resetDbpath(toolTest.dbpath);
assert(mkdir(toolTest.dbpath));
toolTest.startDB('foo');
// refresh the db and coll reference
testDB = toolTest.db.getSiblingDB('test');
testCapped = testDB.capped;
testColl = testDB.coll;
longDB = toolTest.db.getSiblingDB(longName);
longColl = longDB.collection_name_is_lengthed_to_reach_namespace_max_of_123;
// ensure the new mongod was started with an empty data dir
assert.eq(0, testColl.count());
assert.eq(0, testCapped.count());
assert.eq(0, longColl.count());
// restore the data
ret = toolTest.runTool('restore', dumpTarget);
assert.eq(0, ret);
// make sure the data was restored
assert.eq(50, testColl.count());
indexes = testColl.getIndexes();
assert.eq(2, indexes.length);
assert(indexes[0].name === "namedIndex" || indexes[1].name === "namedIndex");
assert.eq(10, testCapped.count());
assert(testCapped.isCapped());
for (var i = 0; i < 50; i++) {
if (i < 10) {
assert.eq(1, testCapped.count({x: i}));
}
assert.eq(1, testColl.count({x: i}));
}
assert.eq(1, longColl.count());
});
// success
toolTest.stop();
}());
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