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mongo/jstests/sharding/query/cursor/cursor_cleanup.js
Steve McClure 1ffbc6c2e9 SERVER-109432: Autofix JS var usage to favor let (#40637)
GitOrigin-RevId: 9674b7db36a0f3f650d39c1e3fb2ad6ff2141cfb
2025-08-28 19:21:01 +00:00

62 lines
1.7 KiB
JavaScript

//
// Tests cleanup of sharded and unsharded cursors
//
import {ShardingTest} from "jstests/libs/shardingtest.js";
let st = new ShardingTest({shards: 2, mongos: 1});
let mongos = st.s0;
let admin = mongos.getDB("admin");
let coll = mongos.getCollection("foo.bar");
let collUnsharded = mongos.getCollection("foo.baz");
// Shard collection
printjson(admin.runCommand({enableSharding: coll.getDB() + "", primaryShard: st.shard0.shardName}));
printjson(admin.runCommand({shardCollection: coll + "", key: {_id: 1}}));
printjson(admin.runCommand({split: coll + "", middle: {_id: 0}}));
printjson(admin.runCommand({moveChunk: coll + "", find: {_id: 0}, to: st.shard1.shardName}));
jsTest.log("Collection set up...");
st.printShardingStatus(true);
jsTest.log("Insert enough data to overwhelm a query batch.");
let bulk = coll.initializeUnorderedBulkOp();
let bulk2 = collUnsharded.initializeUnorderedBulkOp();
for (let i = -150; i < 150; i++) {
bulk.insert({_id: i});
bulk2.insert({_id: i});
}
assert.commandWorked(bulk.execute());
assert.commandWorked(bulk2.execute());
jsTest.log("Open a cursor to a sharded and unsharded collection.");
let shardedCursor = coll.find();
assert.neq(null, shardedCursor.next());
let unshardedCursor = collUnsharded.find();
assert.neq(null, unshardedCursor.next());
jsTest.log("Check whether the cursor is registered in the cursor info.");
var cursorInfo = admin.serverStatus().metrics.cursor;
printjson(cursorInfo);
assert.eq(cursorInfo.open.multiTarget, 1);
jsTest.log("End the cursors.");
shardedCursor.itcount();
unshardedCursor.itcount();
var cursorInfo = admin.serverStatus().metrics.cursor;
printjson(cursorInfo);
assert.eq(cursorInfo.open.multiTarget, 0);
jsTest.log("DONE!");
st.stop();