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// TODO: SERVER-13215 move test back to replSets suite.
/**
* TODO: SERVER-13204
* This tests inserts a huge number of documents, initiates a background index build
* and tries to perform another task in parallel while the background index task is
* active. The problem is that this is timing dependent and the current test setup
* tries to achieve this by inserting insane amount of documents.
*/
// Index drop race
var dbname = 'dropbgindex';
var collection = 'jstests_feh';
var size = 500000;
// Set up replica set
var replTest = new ReplSetTest({name: 'bgIndex', nodes: 3});
var nodes = replTest.nodeList();
printjson(nodes);
// We need an arbiter to ensure that the primary doesn't step down when we restart the secondary
replTest.startSet();
replTest.initiate({
"_id": "bgIndex",
"members": [
{"_id": 0, "host": nodes[0]},
{"_id": 1, "host": nodes[1]},
{"_id": 2, "host": nodes[2], "arbiterOnly": true}
]
});
var master = replTest.getPrimary();
var second = replTest.getSecondary();
var masterId = replTest.getNodeId(master);
var secondId = replTest.getNodeId(second);
var masterDB = master.getDB(dbname);
var secondDB = second.getDB(dbname);
var dc = {
dropIndexes: collection,
index: "i_1"
};
// set up collections
masterDB.dropDatabase();
jsTest.log("creating test data " + size + " documents");
var bulk = masterDB.getCollection(collection).initializeUnorderedBulkOp();
for (i = 0; i < size; ++i) {
bulk.insert({i: Random.rand()});
}
assert.writeOK(bulk.execute());
jsTest.log("Starting background indexing for test of: " + tojson(dc));
// Add another index to be sure the drop command works.
masterDB.getCollection(collection).ensureIndex({b: 1});
masterDB.getCollection(collection).ensureIndex({i: 1}, {background: true});
assert.eq(3, masterDB.getCollection(collection).getIndexes().length);
// Wait for the secondary to get the index entry
assert.soon(function() {
return 3 == secondDB.getCollection(collection).getIndexes().length;
}, "index not created on secondary (prior to drop)", 240000);
jsTest.log("Index created and index entry exists on secondary");
// make sure the index build has started on secondary
assert.soon(function() {
var curOp = secondDB.currentOp();
printjson(curOp);
for (var i = 0; i < curOp.inprog.length; i++) {
try {
if (curOp.inprog[i].insert.background) {
return true;
}
} catch (e) {
// catchem if you can
}
}
return false;
}, "waiting for secondary bg index build", 20000, 10);
jsTest.log("dropping index");
masterDB.runCommand({dropIndexes: collection, index: "*"});
jsTest.log("Waiting on replication");
replTest.awaitReplication();
print("index list on master:");
masterDB.getCollection(collection).getIndexes().forEach(printjson);
// we 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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