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/**
* Tests global index ddl operations, _shardsvrCreateGlobalIndex and _shardsvrDropGlobalIndex.
*
* @tags: [
* featureFlagGlobalIndexes,
* requires_fcv_62,
* requires_replication,
* ]
*/
(function() {
"use strict";
load("jstests/libs/collection_drop_recreate.js"); // For assertDropCollection.
load('jstests/libs/uuid_util.js');
function verifyCollectionExists(node, globalIndexUUID, namespace) {
const systemDB = node.getDB("system");
const res = systemDB.runCommand({listCollections: 1, filter: {name: namespace}});
assert.eq(res.cursor.firstBatch.length, 1);
assert.eq(res.cursor.firstBatch[0].info.uuid, globalIndexUUID);
}
function verifyCollectionNotFound(node, namespace) {
const systemDB = node.getDB("system");
const res = systemDB.runCommand({listCollections: 1, filter: {name: namespace}});
assert.eq(res.cursor.firstBatch.length, 0);
}
function verifyIndexSpecs(node, namespace) {
const primaryIndexSpecs =
{"v": 2, "key": {"_id": 1}, "name": "_id_", "unique": true, "clustered": true};
const secondaryIndexSpecs = {"v": 2, "key": {"ik": 1}, "name": "ik_1", "unique": true};
const referenceIndexSpecList = [primaryIndexSpecs, secondaryIndexSpecs];
const systemDB = node.getDB("system");
let listIndexes = systemDB.runCommand({listIndexes: namespace});
assert.commandWorked(listIndexes);
const indexSpecList = listIndexes["cursor"]["firstBatch"];
assert.sameMembers(indexSpecList,
referenceIndexSpecList,
"Global index collection has unexpected index specs.");
}
function verifyMultiDocumentTransactionDisallowed(node, commandObj) {
let session = node.startSession();
// Verify the command is not allowed in multi-document transactions.
let sessionDB = session.getDatabase("admin");
session.startTransaction();
assert.commandFailedWithCode(sessionDB.runCommand(commandObj),
ErrorCodes.OperationNotSupportedInTransaction);
session.endSession();
}
function verifyOplogEntry(node, globalIndexUUID, namespace, commandString, lsid, txnNumber) {
// Sample oplog entry.
// {
// "op" : "c",
// "ns" : "system.$cmd",
// "ui" : UUID("abe869a0-932f-418c-9baa-2f826fbf23e9"),
// "o" : {
// "createGlobalIndex" : "globalIndex.abe869a0-932f-418c-9baa-2f826fbf23e9"
// },
// "ts" : Timestamp(1659625616, 4),
// "t" : NumberLong(1),
// "v" : NumberLong(2),
// "wall" : ISODate("2022-08-04T15:06:56.647Z")
// }
var commandStringNamespaceObj = {};
commandStringNamespaceObj[commandString] = namespace;
const oplogEntry = node.getDB("local").oplog.rs.find({}).sort({$natural: -1}).limit(1).next();
assert.eq(oplogEntry.op, "c");
assert.eq(oplogEntry.ui, globalIndexUUID);
assert.docEq(oplogEntry.o, commandStringNamespaceObj);
if (commandString === "dropGlobalIndex") {
assert.eq(0, oplogEntry.o2.numRecords);
} else {
assert.eq(undefined, oplogEntry.o2);
}
// lsid and txnNumber are either both present (retryable writes) or absent.
assert((lsid && txnNumber) || (!lsid && !txnNumber));
if (lsid) {
assert.eq(oplogEntry.lsid.id, lsid.id);
assert.eq(oplogEntry.txnNumber, txnNumber);
assert.eq(oplogEntry.stmtId, 0);
}
}
function verifyCommandIsRetryableWrite(node, command, oplogCommandString, setup) {
const session = node.startSession({retryWrites: true});
const adminDB = session.getDatabase("admin");
const lsid = session.getSessionId();
const txnNumber = NumberLong(10);
const indexUUID = UUID();
const globalIndexCollName = "globalIndex." + extractUUIDFromObject(indexUUID);
var commandObj = {};
commandObj[command] = indexUUID;
commandObj = Object.assign(commandObj, {lsid: lsid, txnNumber: txnNumber});
const commandInvocations = 5;
const ssBefore = assert.commandWorked(node.getDB("test").runCommand({serverStatus: 1}));
const retriedCommandsCountBefore = ssBefore["transactions"]["retriedCommandsCount"];
const retriedStatementsCountBefore = ssBefore["transactions"]["retriedStatementsCount"];
const transactionsCollectionWriteCountBefore =
ssBefore["transactions"]["transactionsCollectionWriteCount"];
const commandCountBefore = ssBefore["metrics"]["commands"][command]["total"];
if (typeof setup !== "undefined") {
setup(adminDB, indexUUID);
}
const doRetry = () => {
assert.commandWorked(adminDB.runCommand(commandObj));
};
// Run the same retryable _shardsvrCreateGlobalIndex invocation multiple times.
for (var i = 0; i < commandInvocations; i++) {
doRetry();
}
const ssAfter = assert.commandWorked(node.getDB("test").runCommand({serverStatus: 1}));
const retriedCommandsCountAfter = ssAfter["transactions"]["retriedCommandsCount"];
const retriedStatementsCountAfter = ssAfter["transactions"]["retriedStatementsCount"];
const transactionsCollectionWriteCountAfter =
ssAfter["transactions"]["transactionsCollectionWriteCount"];
const commandCountAfter = ssAfter["metrics"]["commands"][command]["total"];
// The increase of retried commands and statements are globally >= the number of command
// invocations.
assert.gte(retriedCommandsCountAfter, retriedCommandsCountBefore + commandInvocations - 1);
assert.gte(retriedStatementsCountAfter, retriedStatementsCountBefore + commandInvocations - 1);
// The command executed exactly once (config.transactions are globally >= 1) while the command
// was invoked more than once.
assert.gte(transactionsCollectionWriteCountAfter, transactionsCollectionWriteCountBefore + 1);
assert.gte(commandCountAfter, commandCountBefore + commandInvocations);
verifyOplogEntry(node, indexUUID, globalIndexCollName, oplogCommandString, lsid, txnNumber);
}
function testCreateGlobalIndex(rst) {
const primary = rst.getPrimary();
const adminDB = primary.getDB("admin");
const globalIndexUUID = UUID();
const globalIndexCollName = "globalIndex." + extractUUIDFromObject(globalIndexUUID);
const oplogCommandString = "createGlobalIndex";
verifyMultiDocumentTransactionDisallowed(primary, {_shardsvrCreateGlobalIndex: UUID()});
verifyCommandIsRetryableWrite(primary, "_shardsvrCreateGlobalIndex", oplogCommandString);
// Create a global index container.
assert.commandWorked(adminDB.runCommand({_shardsvrCreateGlobalIndex: globalIndexUUID}));
// The command is idempotent: it returns OK if the container already exists.
assert.commandWorked(adminDB.runCommand({_shardsvrCreateGlobalIndex: globalIndexUUID}));
verifyOplogEntry(primary, globalIndexUUID, globalIndexCollName, oplogCommandString);
rst.awaitReplication();
rst.nodes.forEach((node) => {
// Verify collection exists in all nodes, command does what is expected in primary and is
// replicated to secondaries.
verifyCollectionExists(node, globalIndexUUID, globalIndexCollName);
// Verify index spec in all nodes.
verifyIndexSpecs(node, globalIndexCollName);
});
}
function testDropGlobalIndex(rst) {
const primary = rst.getPrimary();
const adminDB = primary.getDB("admin");
const globalIndexUUID = UUID();
const globalIndexCollName = "globalIndex." + extractUUIDFromObject(globalIndexUUID);
const oplogCommandString = "dropGlobalIndex";
verifyMultiDocumentTransactionDisallowed(primary, {_shardsvrDropGlobalIndex: UUID()});
const retryableWriteTestSetup = function(db, uuid) {
// Create a global index container to be deleted.
assert.commandWorked(db.runCommand({_shardsvrCreateGlobalIndex: uuid}));
};
verifyCommandIsRetryableWrite(
primary, "_shardsvrDropGlobalIndex", oplogCommandString, retryableWriteTestSetup);
// Create a global index container to be deleted.
assert.commandWorked(adminDB.runCommand({_shardsvrCreateGlobalIndex: globalIndexUUID}));
assert.commandWorked(adminDB.runCommand({_shardsvrDropGlobalIndex: globalIndexUUID}));
verifyOplogEntry(primary, globalIndexUUID, globalIndexCollName, oplogCommandString);
// The command is idempotent: it returns OK if the container does not exist.
assert.commandWorked(adminDB.runCommand({_shardsvrDropGlobalIndex: globalIndexUUID}));
rst.awaitReplication();
rst.nodes.forEach((node) => {
// Verify collection non-existing in all nodes.
verifyCollectionNotFound(node, globalIndexCollName);
});
}
const rst = new ReplSetTest({nodes: 2});
rst.startSet();
rst.initiate();
testCreateGlobalIndex(rst);
testDropGlobalIndex(rst);
rst.stopSet();
})();
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