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// Check index rebuild when MongoDB is killed.
//
// This test requires persistence because it assumes data/indices will survive a restart.
// This test requires journaling because the information that an index build was started
// must be made durable when the process aborts.
// @tags: [requires_persistence, requires_journaling]
(function() {
'use strict';
var baseName = 'index_retry';
var dbpath = MongoRunner.dataPath + baseName;
var conn = MongoRunner.runMongod({dbpath: dbpath});
assert.neq(null, conn, 'failed to start mongod');
var test = conn.getDB("test");
var name = 'jstests_slownightly_' + baseName;
var t = test.getCollection(name);
t.drop();
var bulk = t.initializeUnorderedBulkOp();
for (var i = 0; i < 100; ++i) {
bulk.insert({a: i});
}
// Make sure the documents are journaled
assert.writeOK(bulk.execute({j: true}));
assert.eq(100, t.count(), 'unexpected number of documents after bulk insert.');
function abortDuringIndexBuild() {
var createIdx = startParallelShell(function() {
var coll = db.getSiblingDB('test').getCollection('jstests_slownightly_index_retry');
// Fail point will handle journal flushing and killing the mongod
assert.commandWorked(db.adminCommand(
{configureFailPoint: 'crashAfterStartingIndexBuild', mode: 'alwaysOn'}));
coll.createIndex({a: 1}, {background: true});
}, conn.port);
var exitCode = createIdx({checkExitSuccess: false});
assert.neq(0, exitCode, "expected shell to exit abnormally due to mongod being terminated");
}
abortDuringIndexBuild();
assert.eq(waitProgram(conn.pid),
MongoRunner.EXIT_TEST,
"mongod should have crashed due to the 'crashAfterStartingIndexBuild' " +
"failpoint being set.");
conn = MongoRunner.runMongod({dbpath: dbpath, restart: true});
test = conn.getDB("test");
t = test.getCollection(name);
assert.eq(100,
t.find({}, {_id: 0, a: 1}).hint({a: 1}).itcount(),
'index {a: 1} was expected to be rebuilt on startup');
var indexes = t.getIndexes();
assert.eq(2,
indexes.length,
'unexpected number of indexes in listIndexes result: ' + tojson(indexes));
MongoRunner.stopMongod(conn);
}());
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