mongo/jstests/sharding/resharding_read_from_second...

57 lines
2.0 KiB
JavaScript

/**
* Tests that replica set shard secondaries don't attempt to create primary-only service Instances
* or insert state documents for resharding.
*
* @tags: [
* uses_atclustertime
* ]
*/
import {DiscoverTopology} from "jstests/libs/discover_topology.js";
import {configureFailPoint} from "jstests/libs/fail_point_util.js";
import {ReshardingTest} from "jstests/sharding/libs/resharding_test_fixture.js";
const reshardingTest = new ReshardingTest();
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]}],
});
function triggerShardVersionRefreshOnSecondary(collection) {
// The shard version refresh would have failed and prevented the secondary from being read from
// if it had attempted to create a primary-only service Instance or insert a state document for
// resharding.
assert.commandWorked(mongos.adminCommand({flushRouterConfig: collection.getFullName()}));
collection.find().readPref("secondary").readConcern("local").itcount();
}
const mongos = sourceCollection.getMongo();
const topology = DiscoverTopology.findConnectedNodes(mongos);
const configPrimary = new Mongo(topology.configsvr.primary);
const fp = configureFailPoint(configPrimary, "reshardingPauseCoordinatorBeforeCloning");
const recipientShardNames = reshardingTest.recipientShardNames;
reshardingTest.withReshardingInBackground(
//
{
newShardKeyPattern: {newKey: 1},
newChunks: [{min: {newKey: MinKey}, max: {newKey: MaxKey}, shard: recipientShardNames[0]}],
},
(tempNs) => {
fp.wait();
triggerShardVersionRefreshOnSecondary(sourceCollection);
const tempColl = mongos.getCollection(tempNs);
triggerShardVersionRefreshOnSecondary(tempColl);
fp.off();
},
);
reshardingTest.teardown();