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// features2.js
s = new ShardingTest( "features2" , 2 , 1 , 1 );
s.adminCommand( { enablesharding : "test" } );
a = s._connections[0].getDB( "test" );
b = s._connections[1].getDB( "test" );
db = s.getDB( "test" );
// ---- distinct ----
db.foo.save( { x : 1 } );
db.foo.save( { x : 2 } );
db.foo.save( { x : 3 } );
assert.eq( "1,2,3" , db.foo.distinct( "x" ) , "distinct 1" );
assert( a.foo.distinct("x").length == 3 || b.foo.distinct("x").length == 3 , "distinct 2" );
assert( a.foo.distinct("x").length == 0 || b.foo.distinct("x").length == 0 , "distinct 3" );
assert.eq( 1 , s.onNumShards( "foo" ) , "A1" );
s.shardGo( "foo" , { x : 1 } , { x : 2 } , { x : 3 } );
assert.eq( 2 , s.onNumShards( "foo" ) , "A2" );
assert.eq( "1,2,3" , db.foo.distinct( "x" ) , "distinct 4" );
// ----- delete ---
assert.eq( 3 , db.foo.count() , "D1" );
db.foo.remove( { x : 3 } );
assert.eq( 2 , db.foo.count() , "D2" );
db.foo.save( { x : 3 } );
assert.eq( 3 , db.foo.count() , "D3" );
db.foo.remove( { x : { $gt : 2 } } );
assert.eq( 2 , db.foo.count() , "D4" );
db.foo.remove( { x : { $gt : -1 } } );
assert.eq( 0 , db.foo.count() , "D5" );
db.foo.save( { x : 1 } );
db.foo.save( { x : 2 } );
db.foo.save( { x : 3 } );
assert.eq( 3 , db.foo.count() , "D6" );
db.foo.remove( {} );
assert.eq( 0 , db.foo.count() , "D7" );
// --- _id key ---
db.foo2.insert( { _id : new ObjectId() } );
db.foo2.insert( { _id : new ObjectId() } );
db.foo2.insert( { _id : new ObjectId() } );
assert.eq( 1 , s.onNumShards( "foo2" ) , "F1" );
s.adminCommand( { shardcollection : "test.foo2" , key : { _id : 1 } } );
assert.eq( 3 , db.foo2.count() , "F2" )
db.foo2.insert( {} );
assert.eq( 4 , db.foo2.count() , "F3" )
// --- map/reduce
db.mr.save( { x : 1 , tags : [ "a" , "b" ] } );
db.mr.save( { x : 2 , tags : [ "b" , "c" ] } );
db.mr.save( { x : 3 , tags : [ "c" , "a" ] } );
db.mr.save( { x : 4 , tags : [ "b" , "c" ] } );
m = function(){
this.tags.forEach(
function(z){
emit( z , { count : 1 } );
}
);
};
r = function( key , values ){
var total = 0;
for ( var i=0; i<values.length; i++ ){
total += values[i].count;
}
return { count : total };
};
doMR = function( n ){
var res = db.mr.mapReduce( m , r );
printjson( res );
var x = db[res.result];
assert.eq( 3 , x.find().count() , "MR T1 " + n );
var z = {};
x.find().forEach( function(a){ z[a._id] = a.value.count; } );
assert.eq( 3 , Object.keySet( z ).length , "MR T2 " + n );
assert.eq( 2 , z.a , "MR T2 " + n );
assert.eq( 3 , z.b , "MR T2 " + n );
assert.eq( 3 , z.c , "MR T2 " + n );
x.drop();
}
doMR( "before" );
assert.eq( 1 , s.onNumShards( "mr" ) , "E1" );
s.shardGo( "mr" , { x : 1 } , { x : 2 } , { x : 3 } );
assert.eq( 2 , s.onNumShards( "mr" ) , "E1" );
doMR( "after" );
s.stop();
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