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(function() {
'use strict';
function sortByName(a, b) {
if (a.name < b.name)
return -1;
if (a.name > b.name)
return 1;
return 0;
}
function checkCollectionsCopiedCorrectly(fromShard, toShard, sharded, barUUID, fooUUID) {
var res = toShard.getDB("test1").runCommand({listCollections: 1});
assert.commandWorked(res);
var collections = res.cursor.firstBatch;
// Sort collections by name.
collections.sort(sortByName);
assert.eq(collections.length, 2);
var c1, c2;
[c1, c2] = collections;
function checkName(c, expectedName) {
assert.eq(c.name,
expectedName,
'Expected collection to be ' + expectedName + ', got ' + c.name);
}
function checkOptions(c, expectedOptions) {
assert.hasFields(c, ['options'], 'Missing options field for collection ' + c.name);
assert.hasFields(
c.options, expectedOptions, 'Missing expected option(s) for collection ' + c.name);
}
function checkUUIDsEqual(c, expectedUUID) {
assert.hasFields(c, ['info'], 'Missing info field for collection ' + c.name);
assert.hasFields(c.info, ['uuid'], 'Missing uuid field for collection ' + c.name);
assert.eq(c.info.uuid, expectedUUID, 'Incorrect uuid for collection ' + c.name);
}
function checkUUIDsNotEqual(c, originalUUID) {
assert.hasFields(c, ['info'], 'Missing info field for collection ' + c.name);
assert.hasFields(c.info, ['uuid'], 'Missing uuid field for collection ' + c.name);
assert.neq(c.info.uuid,
originalUUID,
'UUID for ' + c.name +
' should be different than the original collection but is the same');
}
function checkIndexes(collName, expectedIndexes) {
var res = toShard.getDB('test1').runCommand({listIndexes: collName});
assert.commandWorked(res, 'Failed to get indexes for collection ' + collName);
var indexes = res.cursor.firstBatch;
indexes.sort(sortByName);
assert.eq(indexes.length, 2);
indexes.forEach((index, i) => {
var expected;
if (i == 0) {
expected = {name: "_id_", key: {_id: 1}};
} else {
expected = expectedIndexes[i - 1];
}
Object.keys(expected).forEach(k => {
assert.eq(index[k], expected[k]);
});
});
}
function checkCount(shard, collName, count) {
var res = shard.getDB('test1').runCommand({count: collName});
assert.commandWorked(res);
assert.eq(res.n, count);
}
checkName(c1, 'bar');
checkName(c2, 'foo');
checkOptions(c1, Object.keys(barOptions));
checkIndexes('bar', barIndexes);
checkOptions(c2, Object.keys(fooOptions));
checkIndexes('foo', fooIndexes);
if (sharded) {
checkCount(fromShard, 'foo', 3);
checkCount(fromShard, 'bar', 3);
checkCount(toShard, 'foo', 0);
checkCount(toShard, 'bar', 0);
// UUIDs should be the same as the original
checkUUIDsEqual(c1, barUUID);
checkUUIDsEqual(c2, fooUUID);
} else {
checkCount(toShard, 'foo', 3);
checkCount(toShard, 'bar', 3);
checkCount(fromShard, 'foo', 0);
checkCount(fromShard, 'bar', 0);
// UUIDs should not be the same as the original
checkUUIDsNotEqual(c1, barUUID);
checkUUIDsNotEqual(c2, fooUUID);
}
}
function createCollections(sharded) {
assert.commandWorked(st.getDB('test1').runCommand({dropDatabase: 1}));
var db = st.getDB('test1');
assert.commandWorked(db.createCollection('foo', fooOptions));
assert.commandWorked(db.createCollection('bar', barOptions));
for (let i = 0; i < 3; i++) {
assert.writeOK(db.foo.insert({a: i}));
assert.writeOK(db.bar.insert({a: i}));
}
assert.eq(3, db.foo.count());
assert.eq(3, db.bar.count());
assert.commandWorked(db.runCommand({createIndexes: 'foo', indexes: fooIndexes}));
assert.commandWorked(db.runCommand({createIndexes: 'bar', indexes: barIndexes}));
if (sharded) {
assert.commandWorked(db.adminCommand({enableSharding: 'test1'}));
assert.commandWorked(db.adminCommand({shardCollection: 'test1.foo', key: {_id: 1}}));
assert.commandWorked(db.adminCommand({shardCollection: 'test1.bar', key: {_id: 1}}));
}
}
function movePrimaryWithFailpoint(sharded) {
var db = st.getDB('test1');
createCollections(sharded);
var fromShard = st.getPrimaryShard('test1');
var toShard = st.getOther(fromShard);
assert.eq(
3, fromShard.getDB("test1").foo.count(), "from shard doesn't have data before move");
assert.eq(0, toShard.getDB("test1").foo.count(), "to shard has data before move");
assert.eq(
3, fromShard.getDB("test1").bar.count(), "from shard doesn't have data before move");
assert.eq(0, toShard.getDB("test1").bar.count(), "to shard has data before move");
var listCollsFrom = fromShard.getDB("test1").runCommand({listCollections: 1});
var fromColls = listCollsFrom.cursor.firstBatch;
fromColls.sort(sortByName);
var baruuid = fromColls[0].info.uuid;
var foouuid = fromColls[1].info.uuid;
assert.commandWorked(toShard.getDB("admin").runCommand(
{configureFailPoint: 'movePrimaryFailPoint', mode: 'alwaysOn'}));
// Failpoint will cause movePrimary to fail after the first collection has been copied over
assert.commandFailed(st.s0.adminCommand({movePrimary: "test1", to: toShard.name}));
assert.commandWorked(toShard.getDB("admin").runCommand(
{configureFailPoint: 'movePrimaryFailPoint', mode: 'off'}));
if (sharded) {
// If the collections are sharded, the UUID of the collection on the donor should be
// copied over and the options should be the same so retrying the move should succeed.
assert.commandWorked(st.s0.adminCommand({movePrimary: "test1", to: toShard.name}));
checkCollectionsCopiedCorrectly(fromShard, toShard, sharded, baruuid, foouuid);
// Now change an option on the toShard, and verify that calling clone again fails if
// the options don't match.
assert.commandWorked(
toShard.getDB('test1').runCommand({collMod: 'bar', validationLevel: 'moderate'}));
assert.commandFailed(st.s0.adminCommand({movePrimary: "test1", to: fromShard.name}));
} else {
// If the collections are unsharded, we should fail when any collections being copied
// exist on the target shard.
assert.commandFailed(st.s0.adminCommand({movePrimary: "test1", to: toShard.name}));
}
}
function movePrimaryNoFailpoint(sharded) {
var db = st.getDB('test1');
createCollections(sharded);
var fromShard = st.getPrimaryShard('test1');
var toShard = st.getOther(fromShard);
assert.eq(
3, fromShard.getDB("test1").foo.count(), "from shard doesn't have data before move");
assert.eq(0, toShard.getDB("test1").foo.count(), "to shard has data before move");
assert.eq(
3, fromShard.getDB("test1").bar.count(), "from shard doesn't have data before move");
assert.eq(0, toShard.getDB("test1").bar.count(), "to shard has data before move");
var listCollsFrom = fromShard.getDB("test1").runCommand({listCollections: 1});
var fromColls = listCollsFrom.cursor.firstBatch;
fromColls.sort(sortByName);
var baruuid = fromColls[0].info.uuid;
var foouuid = fromColls[1].info.uuid;
assert.commandWorked(st.s0.adminCommand({movePrimary: "test1", to: toShard.name}));
checkCollectionsCopiedCorrectly(fromShard, toShard, sharded, baruuid, foouuid);
}
var st = new ShardingTest({shards: 2});
var fooOptions = {validationLevel: "off"};
var barOptions = {validator: {$jsonSchema: {required: ['a']}}};
var fooIndexes = [{key: {a: 1}, name: 'index1', expireAfterSeconds: 5000}];
var barIndexes = [{key: {a: -1}, name: 'index2'}];
movePrimaryWithFailpoint(true);
movePrimaryWithFailpoint(false);
movePrimaryNoFailpoint(true);
movePrimaryNoFailpoint(false);
st.stop();
})();
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