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/**
* Tests that resharding succeeds even its oplog application runs on a newly elected primary of a
* recipient shard.
*
* @tags: [
* uses_atclustertime,
* ]
*/
(function() {
"use strict";
load("jstests/sharding/libs/resharding_test_fixture.js");
const reshardingTest = new ReshardingTest({enableElections: true});
reshardingTest.setup();
const donorShardNames = reshardingTest.donorShardNames;
const sourceCollection = reshardingTest.createShardedCollection({
ns: "reshardingDb.coll",
shardKeyPattern: {oldKey: 1},
chunks: [{min: {oldKey: MinKey}, max: {oldKey: MaxKey}, shard: donorShardNames[0]}],
});
const recipientShardNames = reshardingTest.recipientShardNames;
reshardingTest.withReshardingInBackground( //
{
newShardKeyPattern: {newKey: 1},
newChunks: [{min: {newKey: MinKey}, max: {newKey: MaxKey}, shard: recipientShardNames[0]}],
},
() => {
// We wait until cloneTimestamp has been chosen to guarantee that any subsequent writes will
// be applied by the ReshardingOplogApplier.
reshardingTest.awaitCloneTimestampChosen();
// A secondary member of the recipient shard isn't guaranteed to know the collection
// metadata for the temporary resharding collection. We step one up to become the new
// primary to test that resharding succeeds even when the collection metadata must be
// recovered from the config server.
reshardingTest.stepUpNewPrimaryOnShard(recipientShardNames[0]);
assert.commandWorked(sourceCollection.insert({oldKey: 1, newKey: 2}));
reshardingTest.stepUpNewPrimaryOnShard(recipientShardNames[0]);
assert.commandWorked(sourceCollection.update({oldKey: 1, newKey: 2}, {$set: {extra: 3}}));
reshardingTest.stepUpNewPrimaryOnShard(recipientShardNames[0]);
assert.commandWorked(sourceCollection.remove({oldKey: 1, newKey: 2}, {justOne: true}));
});
reshardingTest.teardown();
})();
|
