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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.getMaster();
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");
for( i = 0; i < size; ++i ) {
masterDB.getCollection(collection).save( {i: Random.rand()} );
}
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.system.indexes.count( {ns:dbname + "." + collection}, {background:true} ) );
// Wait for the secondary to get the index entry
assert.soon(
function() { return 3 == secondDB.system.indexes.count( {ns:dbname + "." + collection} ); },
"index not created on secondary (prior to drop)", 240000 );
jsTest.log("Index created and system.indexes 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.system.indexes.find().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.system.indexes.find().forEach(printjson);
i++;
return 1 === secondDB.system.indexes.count();
}, "secondary did not drop index"
);
replTest.stopSet();
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