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/**
* Test the maxSize setting for the addShard command.
*/
(function() {
"use strict";
var MaxSizeMB = 1;
var s = new ShardingTest({ shards: 2, other: { chunkSize: 1, manualAddShard: true }});
var db = s.getDB( "test" );
s.stopBalancer();
var names = s.getConnNames();
assert.eq(2, names.length);
s.adminCommand({ addshard: names[0] });
s.adminCommand({ addshard: names[1], maxSize: MaxSizeMB });
s.adminCommand({ enablesharding: "test" });
var res = db.adminCommand({ movePrimary: 'test', to: names[0] });
assert(res.ok || res.errmsg == "it is already the primary");
var bigString = "";
while ( bigString.length < 10000 )
bigString += "asdasdasdasdadasdasdasdasdasdasdasdasda";
var inserted = 0;
var num = 0;
var bulk = db.foo.initializeUnorderedBulkOp();
while ( inserted < ( 40 * 1024 * 1024 ) ){
bulk.insert({ _id: num++, s: bigString });
inserted += bigString.length;
}
assert.writeOK(bulk.execute());
s.adminCommand( { shardcollection : "test.foo" , key : { _id : 1 } } );
assert.gt(s.config.chunks.count(), 10);
var getShardSize = function(conn) {
var listDatabases = conn.getDB('admin').runCommand({ listDatabases: 1 });
return listDatabases.totalSize;
};
var shardConn = new Mongo(names[1]);
// Make sure that shard doesn't have any documents.
assert.eq(0, shardConn.getDB('test').foo.find().itcount());
var maxSizeBytes = MaxSizeMB * 1024 * 1024;
// Fill the shard with documents to exceed the max size so the balancer won't move
// chunks to this shard.
var localColl = shardConn.getDB('local').padding;
while (getShardSize(shardConn) < maxSizeBytes) {
var localBulk = localColl.initializeUnorderedBulkOp();
for (var x = 0; x < 20; x++) {
localBulk.insert({ x: x, val: bigString });
}
assert.writeOK(localBulk.execute());
// Force the storage engine to flush files to disk so shardSize will get updated.
assert.commandWorked(shardConn.getDB('admin').runCommand({ fsync: 1 }));
}
var configDB = s.s.getDB('config');
var balanceRoundsBefore = configDB.actionlog.find({ what: 'balancer.round' }).count();
s.startBalancer();
// Wait until a balancer finishes at least one round.
assert.soon(function() {
var currentBalanceRound = configDB.actionlog.find({ what: 'balancer.round' }).count();
return balanceRoundsBefore < currentBalanceRound;
});
var chunkCounts = s.chunkCounts('foo', 'test');
assert.eq(0, chunkCounts.shard0001);
s.stop();
})();
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