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// Test to make sure that tag ranges get split
(function() {
var s = new ShardingTest({ name: "tag_auto_split",
shards: 2,
mongos: 1,
other: { enableBalancer : true } });
db = s.getDB( "test" );
s.adminCommand( { enablesharding : "test" } );
s.ensurePrimaryShard('test', 'shard0001');
s.adminCommand( { shardcollection : "test.foo" , key : { _id : 1 } } );
assert.eq( 1, s.config.chunks.count() );
sh.addShardTag( "shard0000" , "a" );
sh.addTagRange( "test.foo" , { _id : 5 } , { _id : 10 } , "a" );
sh.addTagRange( "test.foo" , { _id : 10 } , { _id : 15 } , "b" );
assert.soon( function() {
return s.config.chunks.count() == 3;
}, "things didn't get split", 1000 * 60 * 10, 1000 );
s.printShardingStatus();
s.stop();
//test without full shard key on tags
s = new ShardingTest({ name: "tag_auto_split2",
shards: 2,
mongos: 1,
other: { enableBalancer : true } });
db = s.getDB( "test" );
s.adminCommand( { enablesharding : "test" } );
s.ensurePrimaryShard('test', 'shard0001');
s.adminCommand( { shardcollection : "test.foo" , key : { _id : 1, a : 1 } } );
assert.eq( 1, s.config.chunks.count() );
sh.addShardTag( "shard0000" , "a" );
sh.addTagRange( "test.foo" , { _id : 5 } , { _id : 10 } , "a" );
sh.addTagRange( "test.foo" , { _id : 10 } , { _id : 15 } , "b" );
assert.soon( function() {
return s.config.chunks.count() == 3;
}, "things didn't get split", 1000 * 60 * 10, 1000 );
s.config.chunks.find().forEach(
function(chunk){
var numFields = 0;
for ( var x in chunk.min ) {
numFields++;
assert( x == "_id" || x == "a", tojson(chunk) );
}
assert.eq( 2, numFields,tojson(chunk) );
}
);
// check chunk mins correspond exactly to tag range boundaries, extended to match shard key
assert.eq( 1, s.config.chunks.find( {min : {_id : 5 , a : MinKey} } ).count(),
"bad chunk range boundary" );
assert.eq( 1, s.config.chunks.find( {min : {_id : 10 , a : MinKey} } ).count(),
"bad chunk range boundary" );
s.stop();
})();
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