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/**
* This test builds an index and then drops the index once the secondary has started building it.
* After the drop, we assert that the secondary no longer has the index.
* We then create two indexes and assert that dropping all indexes with '*' replicates properly.
*
*/
function indexBuildInProgress(checkDB) {
var inprog = checkDB.currentOp().inprog;
var indexOps = inprog.filter(function(op) {
if (op.msg && op.msg.includes('Index Build')) {
if (op.progress && (op.progress.done / op.progress.total) > 0.20) {
printjson(op);
return true;
}
}
});
return indexOps.length > 0;
}
// Set up replica set
var replTest = new ReplSetTest({nodes: [{}, {}, {arbiter: true}]});
var nodes = replTest.nodeList();
// We need an arbiter to ensure that the primary doesn't step down when we restart the secondary.
replTest.startSet();
replTest.initiate();
var dbName = 'foo';
var collName = 'coll';
var master = replTest.getPrimary();
var second = replTest.getSecondary();
var masterDB = master.getDB(dbName);
var secondDB = second.getDB(dbName);
var size = 100;
// Make sure that the index build does not terminate on the secondary.
assert.commandWorked(
secondDB.adminCommand({configureFailPoint: 'hangAfterStartingIndexBuild', mode: 'alwaysOn'}));
var bulk = masterDB[collName].initializeUnorderedBulkOp();
for (var i = 0; i < size; ++i) {
bulk.insert({i: i, j: i, k: i});
}
assert.writeOK(bulk.execute());
jsTest.log("Creating index");
masterDB[collName].ensureIndex({i: 1});
assert.eq(2, masterDB[collName].getIndexes().length);
try {
assert.soon(function() {
return indexBuildInProgress(secondDB);
}, "index not started on secondary");
} finally {
// Turn off failpoint and let the index build resume.
assert.commandWorked(
secondDB.adminCommand({configureFailPoint: 'hangAfterStartingIndexBuild', mode: 'off'}));
}
jsTest.log("Index created on secondary");
masterDB.runCommand({dropIndexes: collName, index: "i_1"});
assert.eq(1, masterDB[collName].getIndexes().length);
jsTest.log("Waiting on replication of first index drop");
replTest.awaitReplication();
print("Primary indexes");
masterDB[collName].getIndexes().forEach(printjson);
print("Secondary indexes");
secondDB[collName].getIndexes().forEach(printjson);
assert.soon(function() {
return 1 == secondDB[collName].getIndexes().length;
}, "Index not dropped on secondary");
assert.eq(1, secondDB[collName].getIndexes().length);
jsTest.log("Creating two more indexes on primary");
masterDB[collName].ensureIndex({j: 1});
masterDB[collName].ensureIndex({k: 1});
assert.eq(3, masterDB[collName].getIndexes().length);
jsTest.log("Waiting on replication of second index creations");
replTest.awaitReplication();
print("Primary indexes");
masterDB[collName].getIndexes().forEach(printjson);
print("Secondary indexes");
secondDB[collName].getIndexes().forEach(printjson);
assert.soon(function() {
return 3 == secondDB[collName].getIndexes().length;
}, "Indexes not created on secondary");
assert.eq(3, secondDB[collName].getIndexes().length);
jsTest.log("Dropping the rest of the indexes");
masterDB.runCommand({deleteIndexes: collName, index: "*"});
assert.eq(1, masterDB[collName].getIndexes().length);
// Assert that we normalize 'dropIndexes' oplog entries properly.
master.getCollection('local.oplog.rs').find().forEach(function(entry) {
assert.neq(entry.o.index, "*");
assert(!entry.o.deleteIndexes);
if (entry.o.dropIndexes) {
assert(entry.o2.name);
assert(entry.o2.key);
assert.eq(entry.o2.v, 2);
assert.eq(entry.ns, dbName + ".$cmd");
}
});
jsTest.log("Waiting on replication of second index drops");
replTest.awaitReplication();
print("Primary indexes");
masterDB[collName].getIndexes().forEach(printjson);
print("Secondary indexes");
secondDB[collName].getIndexes().forEach(printjson);
assert.soon(function() {
return 1 == secondDB[collName].getIndexes().length;
}, "Indexes not dropped on secondary");
assert.eq(1, secondDB[collName].getIndexes().length);
replTest.stopSet();
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