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// Test that CollectionCloner completes without error when a collection is dropped during cloning.
(function() {
"use strict";
load("jstests/libs/check_log.js");
load('jstests/replsets/libs/two_phase_drops.js');
load("jstests/libs/uuid_util.js");
// Set up replica set. Disallow chaining so nodes always sync from primary.
const testName = "initial_sync_drop_collection";
const dbName = testName;
var replTest = new ReplSetTest({
name: testName,
nodes: [{}, {rsConfig: {priority: 0}}],
settings: {chainingAllowed: false}
});
replTest.startSet();
replTest.initiate();
var primary = replTest.getPrimary();
var primaryDB = primary.getDB(dbName);
var secondary = replTest.getSecondary();
var secondaryDB = secondary.getDB(dbName);
const collName = "testcoll";
var primaryColl = primaryDB[collName];
var secondaryColl = secondaryDB[collName];
var pRenameColl = primaryDB["r_" + collName];
var nss = primaryColl.getFullName();
// This function adds data to the collection, restarts the secondary node with the given
// parameters and setting the given failpoint, waits for the failpoint to be hit,
// drops the collection, then disables the failpoint. It then optionally waits for the
// expectedLog message and waits for the secondary to complete initial sync, then ensures
// the collection on the secondary is empty.
function setupTest({failPoint, secondaryStartupParams}) {
jsTestLog("Writing data to collection.");
assert.writeOK(primaryColl.insert([{_id: 1}, {_id: 2}]));
jsTestLog("Restarting secondary with failPoint " + failPoint + " set for " + nss);
secondaryStartupParams = secondaryStartupParams || {};
secondaryStartupParams['failpoint.' + failPoint] =
tojson({mode: 'alwaysOn', data: {nss: nss}});
replTest.restart(secondary, {startClean: true, setParameter: secondaryStartupParams});
jsTestLog("Waiting for secondary to reach failPoint " + failPoint);
checkLog.contains(secondary, failPoint + " fail point enabled for " + nss);
// Restarting the secondary may have resulted in an election. Wait until the system
// stabilizes.
replTest.getPrimary();
}
function finishTest({failPoint, secondaryStartupParams, expectedLog, waitForDrop, createNew}) {
// Get the uuid for use in checking the log line.
let uuid = getUUIDFromListCollections(primaryDB, collName);
jsTestLog("Dropping collection on primary: " + primaryColl.getFullName());
assert(primaryColl.drop());
if (waitForDrop) {
jsTestLog("Waiting for drop to commit on primary");
TwoPhaseDropCollectionTest.waitForDropToComplete(primaryDB, collName);
}
if (createNew) {
jsTestLog("Creating a new collection with the same name: " + primaryColl.getFullName());
assert.writeOK(primaryColl.insert({_id: "not the same collection"}));
}
jsTestLog("Allowing secondary to continue.");
assert.commandWorked(secondary.adminCommand({configureFailPoint: failPoint, mode: 'off'}));
if (expectedLog) {
jsTestLog(eval(expectedLog));
checkLog.contains(secondary, eval(expectedLog));
}
jsTestLog("Waiting for initial sync to complete.");
replTest.waitForState(secondary, ReplSetTest.State.SECONDARY);
let res =
assert.commandWorked(secondary.adminCommand({replSetGetStatus: 1, initialSync: 1}));
assert.eq(0, res.initialSyncStatus.failedInitialSyncAttempts);
if (createNew) {
assert.eq([{_id: "not the same collection"}], secondaryColl.find().toArray());
assert(primaryColl.drop());
} else {
assert.eq(0, secondaryColl.find().itcount());
}
replTest.checkReplicatedDataHashes();
}
function runDropTest(params) {
setupTest(params);
finishTest(params);
}
jsTestLog("Testing dropping between listIndexes and find.");
runDropTest({failPoint: "initialSyncHangCollectionClonerBeforeEstablishingCursor"});
jsTestLog(
"Testing dropping between listIndexes and find, with new same-name collection created.");
runDropTest(
{failPoint: "initialSyncHangCollectionClonerBeforeEstablishingCursor", createNew: true});
jsTestLog("Testing drop-pending between getMore calls.");
runDropTest({
failPoint: "initialSyncHangCollectionClonerAfterHandlingBatchResponse",
secondaryStartupParams: {collectionClonerBatchSize: 1},
expectedLog:
"`CollectionCloner ns: '${nss}' uuid: ${uuid} stopped because collection was dropped.`"
});
jsTestLog("Testing drop-pending with new same-name collection created, between getMore calls.");
runDropTest({
failPoint: "initialSyncHangCollectionClonerAfterHandlingBatchResponse",
secondaryStartupParams: {collectionClonerBatchSize: 1},
expectedLog:
"`CollectionCloner ns: '${nss}' uuid: ${uuid} stopped because collection was dropped.`",
createNew: true
});
jsTestLog("Testing committed drop between getMore calls.");
// Add another node to the set, so when we drop the collection it can commit. This other
// secondary will be finished with initial sync when the drop happens.
var secondary2 = replTest.add({rsConfig: {priority: 0}});
replTest.reInitiate();
replTest.waitForState(secondary2, ReplSetTest.State.SECONDARY);
runDropTest({
failPoint: "initialSyncHangCollectionClonerAfterHandlingBatchResponse",
secondaryStartupParams: {collectionClonerBatchSize: 1},
waitForDrop: true,
expectedLog:
"`CollectionCloner ns: '${nss}' uuid: ${uuid} stopped because collection was dropped.`"
});
jsTestLog("Testing rename between getMores.");
setupTest({
failPoint: "initialSyncHangCollectionClonerAfterHandlingBatchResponse",
secondaryStartupParams: {collectionClonerBatchSize: 1},
});
jsTestLog("Renaming collection on primary");
assert.commandWorked(primary.adminCommand({
renameCollection: primaryColl.getFullName(),
to: pRenameColl.getFullName(),
dropTarget: false
}));
jsTestLog("Allowing secondary to continue.");
// Make sure we don't reach the fassert() indicating initial sync failure.
assert.commandWorked(secondary.adminCommand(
{configureFailPoint: "initialSyncHangBeforeFinish", mode: 'alwaysOn'}));
assert.commandWorked(secondary.adminCommand({
configureFailPoint: "initialSyncHangCollectionClonerAfterHandlingBatchResponse",
mode: 'off'
}));
jsTestLog("Waiting for initial sync to complete.");
checkLog.contains(secondary,
"The maximum number of retries have been exhausted for initial sync.");
replTest.stopSet();
})();
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