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/**
* Confirms that unique index builds are committed when a primary steps down during the collection
* scan phase. This applies to both two phase and single phase index builds.
* @tags: [
* requires_replication,
* ]
*/
(function() {
"use strict";
load('jstests/noPassthrough/libs/index_build.js');
const rst = new ReplSetTest({
nodes: [
{},
{},
]
});
const nodes = rst.startSet();
rst.initiate();
const primary = rst.getPrimary();
const dbName = 'test';
const collName = 'coll';
const testDB = primary.getDB(dbName);
const coll = testDB.getCollection(collName);
const doc1 = {
_id: 1,
a: 1
};
assert.commandWorked(coll.insert(doc1));
IndexBuildTest.pauseIndexBuilds(primary);
IndexBuildTest.pauseIndexBuilds(rst.getSecondary());
const createIdx =
IndexBuildTest.startIndexBuild(primary, coll.getFullName(), {a: 1}, {unique: true});
// When the index build starts, find its op id.
const opId = IndexBuildTest.waitForIndexBuildToScanCollection(testDB, coll.getName(), 'a_1');
IndexBuildTest.assertIndexBuildCurrentOpContents(testDB, opId);
// Step down the primary.
assert.commandWorked(primary.adminCommand({replSetStepDown: 60, force: true}));
// Confirm failover.
const newPrimary = rst.getPrimary();
assert.neq(primary.port, newPrimary.port);
// Insert a duplicate and then delete it. The index build should succeed.
const doc2 = {
_id: 2,
a: 1
};
assert.commandWorked(newPrimary.getDB(dbName).getCollection(collName).insert(doc2));
let res = assert.commandWorked(newPrimary.getDB(dbName).getCollection(collName).remove(doc2));
assert.eq(1, res.nRemoved);
// Wait for the index build to stop.
IndexBuildTest.resumeIndexBuilds(primary);
IndexBuildTest.resumeIndexBuilds(newPrimary);
IndexBuildTest.waitForIndexBuildToStop(testDB);
IndexBuildTest.waitForIndexBuildToStop(newPrimary.getDB(dbName));
const exitCode = createIdx({checkExitSuccess: false});
assert.neq(0, exitCode, 'expected shell to exit abnormally due to index build being interrupted');
// The index build should have succeeded.
rst.awaitReplication();
const primaryColl = rst.getPrimary().getDB(dbName).getCollection(collName);
res = assert.commandWorked(primaryColl.validate());
assert(res.valid, 'expected validation to succeed: ' + tojson(res));
const secondaryColl = rst.getSecondary().getDB(dbName).getCollection(collName);
res = assert.commandWorked(secondaryColl.validate());
assert(res.valid, 'expected validation to succeed: ' + tojson(res));
IndexBuildTest.assertIndexes(primaryColl, 2, ['_id_', 'a_1']);
IndexBuildTest.assertIndexes(secondaryColl, 2, ['_id_', 'a_1']);
rst.stopSet();
})();
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