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/**
* When an index build on a secondary fails, we expect to receive a abortIndexBuild oplog entry from
* the primary eventually. If we get a commitIndexBuild oplog entry instead, the secondary should
* crash.
* @tags: [
* live_record_incompatible,
* requires_replication,
* ]
*/
(function() {
"use strict";
load('jstests/noPassthrough/libs/index_build.js');
const rst = new ReplSetTest({
nodes: [
{},
{
// Disallow elections on secondary.
rsConfig: {
priority: 0,
votes: 0,
},
},
]
});
const nodes = rst.startSet();
rst.initiate();
const primary = rst.getPrimary();
const testDB = primary.getDB('test');
const coll = testDB.getCollection('test');
assert.commandWorked(coll.insert({a: 1}));
IndexBuildTest.pauseIndexBuilds(primary);
// Make the index build fail on the secondary during the collection scan phase.
// When we unblock the index build on the primary, the index build will complete successfully.
const secondary = rst.getSecondary();
const secondaryDB = secondary.getDB(testDB.getName());
assert.commandWorked(secondaryDB.adminCommand(
{configureFailPoint: 'hangAfterStartingIndexBuildUnlocked', mode: 'alwaysOn'}));
assert.commandWorked(
secondaryDB.adminCommand({configureFailPoint: 'failIndexBuildOnCommit', mode: 'alwaysOn'}));
const createIdx = IndexBuildTest.startIndexBuild(primary, coll.getFullName(), {a: 1});
try {
// Wait for the index build to start on the primary.
const opId = IndexBuildTest.waitForIndexBuildToStart(testDB, coll.getName(), 'a_1');
IndexBuildTest.assertIndexBuildCurrentOpContents(testDB, opId);
// The index build on the secondary will fail but will wait for the abortIndexBuild oplog entry
// from the primary.
const secondaryOpId =
IndexBuildTest.waitForIndexBuildToStart(secondaryDB, coll.getName(), 'a_1');
IndexBuildTest.assertIndexBuildCurrentOpContents(secondaryDB, secondaryOpId);
} finally {
secondaryDB.adminCommand(
{configureFailPoint: 'hangAfterStartingIndexBuildUnlocked', mode: 'off'});
IndexBuildTest.resumeIndexBuilds(primary);
}
// Wait for the index build to stop.
IndexBuildTest.waitForIndexBuildToStop(testDB);
const exitCode = createIdx();
assert.eq(0, exitCode, 'expected shell to exit successfully');
// Wait until the secondary process exits. We don't use ReplSetTest.stop() because if the secondary
// hasn't processed the commitIndexBuild oplog entry yet, the node will get signaled to shutdown
// cleanly and return an exit code of 0.
let res;
assert.soon(function() {
res = checkProgram(secondary.pid);
return !res.alive;
});
// Secondary should crash on receiving the unexpected commitIndexBuild oplog entry.
assert.eq(MongoRunner.EXIT_ABORT, res.exitCode);
assert(rawMongoProgramOutput().match('Fatal assertion.*4698902'),
'Index build should have aborted secondary due to unexpected commitIndexBuild oplog entry.');
// Check indexes on primary.
IndexBuildTest.assertIndexes(coll, 2, ['_id_', 'a_1']);
const cmdNs = testDB.getCollection('$cmd').getFullName();
const ops = rst.dumpOplog(primary, {op: 'c', ns: cmdNs, 'o.commitIndexBuild': coll.getName()});
assert.eq(1, ops.length, 'primary did not write commitIndexBuild oplog entry: ' + tojson(ops));
TestData.skipCheckDBHashes = true;
rst.stopSet();
})();
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