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/**
* Tests 'deleteOne' command on sharded collections without specifying shard key.
*
* @tags: [
* # To avoid multiversion tests
* requires_fcv_70,
* # To avoid burn-in tests in in-memory build variants
* requires_persistence,
* featureFlagUpdateOneWithoutShardKey,
* ]
*/
(function() {
"use strict";
load("jstests/core/timeseries/libs/timeseries.js"); // For 'TimeseriesTest' helpers.
const st = new ShardingTest({shards: 2, rs: {nodes: 2}});
//
// Constants used throughout all tests.
//
const dbName = 'testDB';
const collNameWithMeta = 'weatherWithLocationMeta';
const collNameWithoutMeta = 'weather';
const mongos = st.s;
const testDB = mongos.getDB(dbName);
const primary = st.shard0;
const primaryDB = primary.getDB(dbName);
const otherShard = st.shard1;
const otherDB = otherShard.getDB(dbName);
testDB.dropDatabase();
assert.commandWorked(mongos.adminCommand({enableSharding: dbName}));
st.ensurePrimaryShard(testDB.getName(), primary.shardName);
const shard0RoutingValues = {
shardNumber: 0,
timestamp: ISODate("2000-05-18T08:00:00.000Z")
};
const shard1RoutingValues = {
shardNumber: 1,
timestamp: ISODate("2010-05-18T08:00:00.000Z")
};
const data = [
// Cork.
{
location: {city: "Cork", shardNumber: shard0RoutingValues.shardNumber},
time: shard0RoutingValues.timestamp,
temperature: 12,
},
{
location: {city: "Cork", shardNumber: shard0RoutingValues.shardNumber},
time: shard0RoutingValues.timestamp,
temperature: 15,
},
// Dublin.
{
location: {city: "Dublin", shardNumber: shard0RoutingValues.shardNumber},
time: shard0RoutingValues.timestamp,
temperature: 12,
},
{
location: {city: "Dublin", shardNumber: shard0RoutingValues.shardNumber},
time: shard0RoutingValues.timestamp,
temperature: 22,
},
{
location: {city: "Dublin", shardNumber: shard1RoutingValues.shardNumber},
time: shard1RoutingValues.timestamp,
temperature: 12.5,
},
{
location: {city: "Dublin", shardNumber: shard1RoutingValues.shardNumber},
time: shard1RoutingValues.timestamp,
temperature: 13,
},
// Galway.
{
location: {city: "Galway", shardNumber: shard1RoutingValues.shardNumber},
time: shard1RoutingValues.timestamp,
temperature: 20,
},
{
location: {city: "Galway", shardNumber: shard1RoutingValues.shardNumber},
time: shard1RoutingValues.timestamp,
temperature: 20,
},
// New York City.
{
_id: 0,
location: {city: "New York City", shardNumber: shard0RoutingValues.shardNumber},
time: shard0RoutingValues.timestamp,
temperature: 20,
},
{
location: {city: "New York City", shardNumber: shard1RoutingValues.shardNumber},
time: shard1RoutingValues.timestamp,
temperature: 39,
},
{
_id: 100,
location: {city: "New York City", shardNumber: shard1RoutingValues.shardNumber},
time: shard1RoutingValues.timestamp,
temperature: 20,
},
];
// Set up a sharded time-series collection and split up the data points across 2 shards.
const setUpShardedTimeseriesCollection = function(collName) {
const testColl = testDB[collName];
let shardSplitObject = null;
if (collName == collNameWithoutMeta) {
assert.commandWorked(testDB.createCollection(
collName, {timeseries: {timeField: "time", granularity: "hours"}}));
assert.commandWorked(
testDB.adminCommand({shardCollection: testColl.getFullName(), key: {"time": 1}}));
// In the measurements used for this test, timestamps use either year 2000 or year 2010 so
// this split key in the year 2005 splits measurements across 2 shards accordingly.
shardSplitObject = {"control.min.time": ISODate("2005-05-18T08:00:00.000Z")};
} else {
assert.commandWorked(testDB.createCollection(
collName,
{timeseries: {timeField: "time", metaField: "location", granularity: "hours"}}));
assert.commandWorked(testDB.adminCommand(
{shardCollection: testColl.getFullName(), key: {"location.shardNumber": 1}}));
shardSplitObject = {"meta.shardNumber": 1};
}
assert.commandWorked(testColl.insertMany(data, {ordered: false}));
const bucketCollName = `system.buckets.${collName}`;
const bucketCollFullName = `${dbName}.${bucketCollName}`;
// Shard 0 : 2 Corks | 2 Dublins | 1 New York City
// Shard 1 : 2 Dublins | 2 Galways | 2 New York Citys
assert.commandWorked(st.s.adminCommand({split: bucketCollFullName, middle: shardSplitObject}));
// Move chunks to the other shard.
assert.commandWorked(st.s.adminCommand({
movechunk: bucketCollFullName,
find: shardSplitObject,
to: otherShard.shardName,
_waitForDelete: true
}));
// Ensures that each shard owns one chunk.
const counts = st.chunkCounts(bucketCollName, dbName);
assert.eq(1, counts[primary.shardName], counts);
assert.eq(1, counts[otherShard.shardName], counts);
// Ensure there is at least one bucket document on each shard.
const numDocsOnPrimaryDB = primaryDB[bucketCollName].find({}).toArray();
const numDocsOnOtherDB = otherDB[bucketCollName].find({}).toArray();
assert.gt(numDocsOnPrimaryDB.length,
1,
`Documents on primaryDB: ${tojson(numDocsOnPrimaryDB)} Documents on otherDB: ${
tojson(numDocsOnOtherDB)}`);
assert.gt(numDocsOnOtherDB.length,
1,
`Documents on primaryDB: ${tojson(numDocsOnPrimaryDB)} Documents on otherDB: ${
tojson(numDocsOnOtherDB)}`);
};
let numOfDeletedMeasurements = 0;
const runDeleteOneWithQuery = function(collName, query, expectedN) {
jsTestLog(`running deleteOne() with query: ${tojson(query)} on collection: "${collName}"`);
const deleteCommand = {
delete: collName,
deletes: [{
q: query,
limit: 1,
}]
};
const result = assert.commandWorked(testDB.runCommand(deleteCommand));
assert.eq(expectedN, result.n);
numOfDeletedMeasurements += expectedN;
};
const runTests = function(collName) {
numOfDeletedMeasurements = 0;
// Set up sharded time-series collections with data split across 2 shards.
setUpShardedTimeseriesCollection(collName);
// We expect 'deleteOne' to succeed without specifying a shard key in the delete query.
runDeleteOneWithQuery(collName, {"location.city": "Galway"}, 1);
runDeleteOneWithQuery(collName, {"location.city": "Dublin"}, 1);
runDeleteOneWithQuery(collName, {"location.city": "Galway"}, 1);
// We expect 'deleteOne' on non-existent measurements to succeed as no-ops.
runDeleteOneWithQuery(collName, {"location.city": "Chicago"}, 0);
runDeleteOneWithQuery(collName, {"location.city": "Galway"}, 0);
// We expect 'deleteOne' on the time field to succeed.
runDeleteOneWithQuery(collName, {"time": shard0RoutingValues.timestamp}, 1);
runDeleteOneWithQuery(collName, {"time": shard1RoutingValues.timestamp}, 1);
// We expect 'deleteOne' on the _id field to succeed.
runDeleteOneWithQuery(collName, {"_id": 100}, 1);
// We expect 'deleteOne' on metric fields to succeed.
runDeleteOneWithQuery(collName, {"temperature": 39}, 1);
// We expect 'deleteOne' with an empty predicate to succeed.
runDeleteOneWithQuery(collName, {}, 1);
// Verify the expected number of documents exist.
const originalCount = data.length;
const remainingDocuments = testDB[collName].find({}).toArray();
assert.eq(originalCount - numOfDeletedMeasurements,
remainingDocuments.length,
"Remaining Documents: " + tojson(remainingDocuments));
};
// Run tests on a collection with a metaField specified upon creation.
runTests(collNameWithMeta);
// Run tests on a collection with no metaField specified.
runTests(collNameWithoutMeta);
st.stop();
})();
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