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path: root/jstests/sharding/unowned_doc_filtering.js
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/**
 * Tests that the mongod chunk filtering stage properly filters out unowned documents even after
 * the shards are restarted.
 *
 * This test involves restarting a standalone shard, so cannot be run on ephemeral storage engines.
 * A restarted standalone will lose all data when using an ephemeral storage engine.
 * @tags: [requires_persistence]
 */

// This test shuts down shards.
TestData.skipCheckingUUIDsConsistentAcrossCluster = true;

(function() {
"use strict";

var st = new ShardingTest({shards: 2});

var testDB = st.s.getDB('test');

assert.commandWorked(testDB.adminCommand({enableSharding: 'test'}));
st.ensurePrimaryShard('test', st.shard0.shardName);
assert.commandWorked(testDB.adminCommand({shardCollection: 'test.foo', key: {x: 1}}));

var inserts = [];
for (var i = 0; i < 100; i++) {
    inserts.push({x: i});
}
assert.writeOK(testDB.foo.insert(inserts));

assert.commandWorked(testDB.adminCommand({split: 'test.foo', find: {x: 50}}));
assert.commandWorked(
    testDB.adminCommand({moveChunk: 'test.foo', find: {x: 100}, to: st.shard1.shardName}));

// Insert some documents directly into the shards into chunks not owned by that shard.
st.rs0.getPrimary().getDB('test').foo.insert({x: 100});
st.rs1.getPrimary().getDB('test').foo.insert({x: 0});

st.rs0.restart(0);
st.rs1.restart(0);

var fooCount;
for (var retries = 0; retries <= 2; retries++) {
    try {
        fooCount = testDB.foo.find().itcount();
        break;
    } catch (e) {
        // expected for reestablishing connections broken by the mongod restart.
        assert.eq(ErrorCodes.HostUnreachable, e.code, tojson(e));
    }
}
assert.eq(100, fooCount);

st.stop();
}());