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/**
* Tests that the "dropIndexes" command can abort in-progress index builds. The "dropIndexes"
* command will only abort in-progress index builds if the user specifies all of the indexes that a
* single builder is building together, as we can only abort at the index builder granularity level.
*
* This test also confirms that secondary reads are supported while index builds are in progress.
*
* In this file, we test calling "dropIndexes" with a simple index name whose index build is
* in-progress.
* @tags: [
* requires_replication,
* ]
*/
(function() {
"use strict";
load("jstests/noPassthrough/libs/index_build.js");
load('jstests/replsets/libs/secondary_reads_test.js');
const dbName = "drop_indexes_aborts_in_progress_index_builds_simple_name";
const secondaryReadsTest = new SecondaryReadsTest(dbName);
let primaryDB = secondaryReadsTest.getPrimaryDB();
const conn = primaryDB.getMongo();
const collName = "test";
TestData.dbName = dbName;
TestData.collName = collName;
const testDB = conn.getDB(dbName);
testDB.getCollection(collName).drop();
assert.commandWorked(testDB.createCollection(collName));
const coll = testDB.getCollection(collName);
jsTest.log("Aborting index builder with one index build and simple index spec");
assert.commandWorked(testDB.getCollection(collName).insert({a: 1}));
IndexBuildTest.pauseIndexBuilds(testDB.getMongo());
IndexBuildTest.pauseIndexBuilds(secondaryReadsTest.getSecondaryDB().getMongo());
const awaitIndexBuild = IndexBuildTest.startIndexBuild(
testDB.getMongo(), coll.getFullName(), {a: 1}, {}, [ErrorCodes.IndexBuildAborted]);
IndexBuildTest.waitForIndexBuildToScanCollection(testDB, collName, "a_1");
IndexBuildTest.waitForIndexBuildToStart(secondaryReadsTest.getSecondaryDB(), collName, "a_1");
// Test secondary reads during oplog application.
// Prevent a batch from completing on the secondary.
const pauseAwait = secondaryReadsTest.pauseSecondaryBatchApplication();
for (let i = 100; i < 200; i++) {
assert.commandWorked(testDB.getCollection(collName).insert({a: i}));
}
// Wait for the batch application to pause.
pauseAwait();
// Do a bunch of reads on the 'collName' collection on the secondary.
// No errors should be encountered on the secondary.
let readFn = function() {
for (let x = 0; x < TestData.nOps; x++) {
assert.commandWorked(db.runCommand({
find: TestData.collName,
filter: {a: x},
}));
// Sleep a bit to make these reader threads less CPU intensive.
sleep(60);
}
};
TestData.nOps = 10;
const nReaders = 3;
secondaryReadsTest.startSecondaryReaders(nReaders, readFn);
// Disable the failpoint and let the batch complete.
secondaryReadsTest.resumeSecondaryBatchApplication();
secondaryReadsTest.stopReaders();
const awaitDropIndex = startParallelShell(() => {
const testDB = db.getSiblingDB(TestData.dbName);
assert.commandWorked(testDB.runCommand({dropIndexes: TestData.collName, index: "a_1"}));
}, conn.port);
checkLog.contains(testDB.getMongo(), "About to abort index builder");
IndexBuildTest.resumeIndexBuilds(testDB.getMongo());
IndexBuildTest.resumeIndexBuilds(secondaryReadsTest.getSecondaryDB().getMongo());
awaitIndexBuild();
awaitDropIndex();
assert.eq(1, testDB.getCollection(collName).getIndexes().length);
secondaryReadsTest.stop();
}());
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