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/**
* Tests that an in-progress background validation gets interrupted when certain DDL operations are
* executed.
*
* Dropping an index, the collection or database that are part of the ongoing background validation
* should cause the validation to be interrupted. Renaming the collection across databases should
* also interrupt, but same database collection renames should not. Operations that are not part of
* the ongoing background validation, like creating new indexes or inserting documents should not
* cause the validation to be interrupted.
*
* @tags: [requires_persistence]
*/
(function() {
"use strict";
const dbName = "background_validation_with_ddl_ops";
const dbNameRename = "background_validation_with_ddl_ops_rename";
const collName = "test";
let testDb, testColl;
const setFailpoint = () => {
assert.commandWorked(testDb.adminCommand(
{configureFailPoint: "hangDuringYieldingLocksForValidation", mode: "alwaysOn"}));
};
const unsetFailpoint = () => {
assert.commandWorked(testDb.adminCommand(
{configureFailPoint: "hangDuringYieldingLocksForValidation", mode: "off"}));
};
const waitUntilFailpoint = () => {
checkLog.contains(testDb.getMongo(),
"Hanging on fail point 'hangDuringYieldingLocksForValidation'");
};
const resetCollection = () => {
// Clear the log to get rid of any existing fail point logging that will be used to hang on.
testDb = db.getSiblingDB(dbName);
assert.commandWorked(testDb.adminCommand({clearLog: 'global'}));
testColl = testDb.getCollection(collName);
testColl.drop();
db.getSiblingDB(dbNameRename).getCollection(collName).drop();
assert.commandWorked(testColl.createIndex({x: 1}));
// Insert 10,000 documents because validation will yield every 4096 entries fetched.
const docsToInsert = 10000;
var bulk = testColl.initializeUnorderedBulkOp();
for (var i = 0; i < docsToInsert; i++) {
bulk.insert({x: i});
}
assert.commandWorked(bulk.execute());
assert.commandWorked(testDb.fsyncLock());
assert.commandWorked(testDb.fsyncUnlock());
};
/**
* Collection validation fails due to dropped index that was being validated.
*/
resetCollection();
let awaitFailedValidationDueToIndexDrop;
try {
setFailpoint();
awaitFailedValidationDueToIndexDrop = startParallelShell(function() {
assert.commandFailedWithCode(db.getSiblingDB("background_validation_with_ddl_ops")
.runCommand({validate: "test", background: true}),
ErrorCodes.Interrupted);
});
waitUntilFailpoint();
assert.commandWorked(testColl.dropIndex({x: 1}));
} finally {
unsetFailpoint();
}
awaitFailedValidationDueToIndexDrop();
/**
* Collection validation fails due to dropped collection that was being validated.
*/
resetCollection();
let awaitFailedValidationDueToCollectionDrop;
try {
setFailpoint();
awaitFailedValidationDueToCollectionDrop = startParallelShell(function() {
assert.commandFailedWithCode(db.getSiblingDB("background_validation_with_ddl_ops")
.runCommand({validate: "test", background: true}),
ErrorCodes.Interrupted);
});
waitUntilFailpoint();
assert.eq(true, testColl.drop());
} finally {
unsetFailpoint();
}
awaitFailedValidationDueToCollectionDrop();
/**
* Collection validation fails due to being renamed across databases while being validated.
*/
resetCollection();
let awaitFailedValidationDueToCrossDBCollectionRename;
try {
setFailpoint();
awaitFailedValidationDueToCrossDBCollectionRename = startParallelShell(function() {
assert.commandFailedWithCode(db.getSiblingDB("background_validation_with_ddl_ops")
.runCommand({validate: "test", background: true}),
ErrorCodes.Interrupted);
});
waitUntilFailpoint();
assert.commandWorked(testDb.adminCommand({
renameCollection: dbName + "." + collName,
to: dbNameRename + "." + collName,
dropTarget: true
}));
} finally {
unsetFailpoint();
}
awaitFailedValidationDueToCrossDBCollectionRename();
/**
* Collection validation fails due to database being dropped.
*/
resetCollection();
let awaitFailedValidationDueToDatabaseDrop;
try {
setFailpoint();
awaitFailedValidationDueToDatabaseDrop = startParallelShell(function() {
assert.commandFailedWithCode(db.getSiblingDB("background_validation_with_ddl_ops")
.runCommand({validate: "test", background: true}),
ErrorCodes.Interrupted);
});
waitUntilFailpoint();
assert.commandWorked(testDb.dropDatabase());
} finally {
unsetFailpoint();
}
awaitFailedValidationDueToDatabaseDrop();
/**
* Collection validation succeeds when running operations that do not affect ongoing background
* validation.
*/
resetCollection();
let awaitPassedValidation;
try {
setFailpoint();
awaitPassedValidation = startParallelShell(function() {
assert.commandWorked(db.getSiblingDB("background_validation_with_ddl_ops")
.runCommand({validate: "test", background: true}));
});
waitUntilFailpoint();
// Run a bunch of operations that shouldn't make background validation fail.
assert.commandWorked(testColl.createIndex({y: 1}));
assert.commandWorked(testColl.insert({x: 1, y: 1}));
assert.commandWorked(testDb.createCollection("newCollection"));
assert.commandWorked(testDb.adminCommand({
renameCollection: dbName + "." +
"newCollection",
to: dbName + ".renamedCollection",
dropTarget: true
}));
assert.commandWorked(testColl.dropIndex({y: 1}));
// Rename the collection being validated across the same database.
assert.commandWorked(testDb.adminCommand({
renameCollection: dbName + "." + collName,
to: dbName + ".testRenamed",
dropTarget: true
}));
} finally {
unsetFailpoint();
}
awaitPassedValidation();
}());
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