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/**
* Initiates a background index build on the primary, and while the secondary is building the index
* through replication, the primary drops all the indexes.
* @tags: [requires_replication]
*/
(function() {
'use strict';
load('jstests/noPassthrough/libs/index_build.js');
var dbname = 'dropbgindex';
var collection = 'jstests_feh';
var size = 100;
const replTest = new ReplSetTest({
nodes: [
{},
{
// Disallow elections on secondary.
rsConfig: {
priority: 0,
votes: 0,
},
slowms: 30000, // Don't log slow operations on secondary. See SERVER-44821.
},
]
});
const nodes = replTest.startSet();
replTest.initiate();
var primary = replTest.getPrimary();
var second = replTest.getSecondary();
var primaryDB = primary.getDB(dbname);
var secondDB = second.getDB(dbname);
var dc = {dropIndexes: collection, index: "i_1"};
// Setup collections.
primaryDB.dropDatabase();
jsTest.log("Creating test data " + size + " documents");
Random.setRandomSeed();
var bulk = primaryDB.getCollection(collection).initializeUnorderedBulkOp();
for (i = 0; i < size; ++i) {
bulk.insert({i: Random.rand()});
}
assert.commandWorked(bulk.execute({w: 2, wtimeout: replTest.kDefaultTimeoutMS}));
assert.commandWorked(
secondDB.adminCommand({configureFailPoint: "hangAfterStartingIndexBuild", mode: "alwaysOn"}));
jsTest.log("Starting background indexing for test of: " + tojson(dc));
// Add another index to be sure the drop command works.
primaryDB.getCollection(collection).ensureIndex({b: 1});
primaryDB.getCollection(collection).ensureIndex({i: 1}, {background: true});
// Make sure the index build has started on the secondary.
IndexBuildTest.waitForIndexBuildToStart(secondDB);
jsTest.log("Dropping indexes");
primaryDB.runCommand({dropIndexes: collection, index: "*"});
jsTest.log("Waiting on replication");
assert.commandWorked(
secondDB.adminCommand({configureFailPoint: "hangAfterStartingIndexBuild", mode: "off"}));
replTest.awaitReplication();
print("Index list on primary:");
primaryDB.getCollection(collection).getIndexes().forEach(printjson);
// Need to assert.soon because the drop only marks the index for removal
// the removal itself is asynchronous and may take another moment before it happens.
var i = 0;
assert.soon(function() {
print("Index list on secondary (run " + i + "):");
secondDB.getCollection(collection).getIndexes().forEach(printjson);
i++;
return 1 === secondDB.getCollection(collection).getIndexes().length;
}, "secondary did not drop index");
replTest.stopSet();
}());
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