mirror of
https://github.com/mongodb/mongo.git
synced 2024-12-01 09:32:32 +01:00
34 lines
1.3 KiB
JavaScript
34 lines
1.3 KiB
JavaScript
/**
|
|
* Tests that a stale mongos does not return a stale shardVersion error to the client for explain
|
|
* find sent using the legacy query mode (it retries on the stale shardVersion error internally).
|
|
*/
|
|
(function() {
|
|
"use strict";
|
|
|
|
const dbName = "test";
|
|
const collName = "foo";
|
|
const ns = dbName + "." + collName;
|
|
|
|
const st = new ShardingTest({mongos: 2, shards: 1, verbose: 2});
|
|
|
|
let staleMongos = st.s0;
|
|
let freshMongos = st.s1;
|
|
|
|
jsTest.log("Make the stale mongos load a cache entry for db " + dbName + " once");
|
|
assert.writeOK(staleMongos.getDB(dbName).getCollection(collName).insert({_id: 1}));
|
|
|
|
jsTest.log("Call shardCollection on " + ns + " from the fresh mongos");
|
|
assert.commandWorked(freshMongos.adminCommand({enableSharding: dbName}));
|
|
assert.commandWorked(freshMongos.adminCommand({shardCollection: ns, key: {"_id": 1}}));
|
|
|
|
jsTest.log("Ensure the shard knows " + ns + " is sharded");
|
|
assert.commandWorked(
|
|
st.shard0.adminCommand({_flushRoutingTableCacheUpdates: ns, syncFromConfig: true}));
|
|
|
|
jsTest.log("Run explain find on " + ns + " from the stale mongos");
|
|
staleMongos.getDB(dbName).getMongo().forceReadMode("legacy");
|
|
staleMongos.getDB(dbName).getCollection(collName).find({$query: {}, $explain: true}).next();
|
|
|
|
st.stop();
|
|
})();
|