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//
// Tests migration behavior of large documents
//
var st = new ShardingTest({ shards : 2, mongos : 1,
other : { separateConfig : true,
mongosOptions : { noAutoSplit : "" },
shardOptions : { /* binVersion : "latest" */ } } });
st.stopBalancer()
var mongos = st.s0;
var coll = mongos.getCollection( "foo.bar" );
var admin = mongos.getDB( "admin" );
var shards = mongos.getCollection( "config.shards" ).find().toArray();
var shardAdmin = st.shard0.getDB( "admin" );
assert( admin.runCommand({ enableSharding : coll.getDB() + "" }).ok );
printjson( admin.runCommand({ movePrimary : coll.getDB() + "", to : shards[0]._id }) );
assert( admin.runCommand({ shardCollection : coll + "", key : { _id : 1 } }).ok );
assert( admin.runCommand({ split : coll + "", middle : { _id : 0 } }).ok );
jsTest.log( "Preparing large insert..." );
var data1MB = "x"
while ( data1MB.length < 1024 * 1024 )
data1MB += data1MB;
var data15MB = "";
for ( var i = 0; i < 15; i++ ) data15MB += data1MB;
var data15PlusMB = data15MB;
for ( var i = 0; i < 1023 * 1024; i++ ) data15PlusMB += "x";
print("~15MB object size is : " + Object.bsonsize({ _id : 0, d : data15PlusMB }));
jsTest.log( "Inserting docs of large and small sizes..." );
// Two large docs next to each other
coll.insert({ _id : -2, d : data15PlusMB });
coll.insert({ _id : -1, d : data15PlusMB });
// Docs of assorted sizes
coll.insert({ _id : 0, d : "x" });
coll.insert({ _id : 1, d : data15PlusMB });
coll.insert({ _id : 2, d : "x" });
coll.insert({ _id : 3, d : data15MB });
coll.insert({ _id : 4, d : "x" });
coll.insert({ _id : 5, d : data1MB });
coll.insert({ _id : 6, d : "x" });
assert.eq( null, coll.getDB().getLastError() );
assert.eq( 9, coll.find().itcount() );
jsTest.log( "Starting migration..." );
assert( admin.runCommand({ moveChunk : coll + "", find : { _id : 0 }, to : shards[1]._id }).ok );
assert( admin.runCommand({ moveChunk : coll + "", find : { _id : -1 }, to : shards[1]._id }).ok );
assert.eq( 9, coll.find().itcount() );
jsTest.log( "DONE!" );
st.stop();
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