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//
// Tests autosplit locations with force : true
//
var options = { separateConfig : true,
chunksize : 1, // MB
mongosOptions : { noAutoSplit : "" }
};
var st = new ShardingTest({ shards : 1, mongos : 1, other : options });
st.stopBalancer();
var mongos = st.s0;
var admin = mongos.getDB( "admin" );
var config = mongos.getDB( "config" );
var shardAdmin = st.shard0.getDB( "admin" );
var coll = mongos.getCollection( "foo.bar" );
assert( admin.runCommand({ enableSharding : coll.getDB() + "" }).ok );
assert( admin.runCommand({ shardCollection : coll + "", key : { _id : 1 } }).ok );
assert( admin.runCommand({ split : coll + "", middle : { _id : 0 } }).ok );
jsTest.log( "Insert a bunch of data into a chunk of the collection..." );
for ( var i = 0; i < (250 * 1000) + 10; i++ ) {
coll.insert({ _id : i });
}
assert.eq( null, coll.getDB().getLastError() );
jsTest.log( "Insert a bunch of data into the rest of the collection..." );
for ( var i = 1; i <= (250 * 1000); i++ ) {
coll.insert({ _id : -i });
}
assert.eq( null, coll.getDB().getLastError() );
jsTest.log( "Get split points of the chunk using force : true..." );
var maxChunkSizeBytes = 1024 * 1024;
var splitKeys = shardAdmin.runCommand({ splitVector : coll + "",
keyPattern : { _id : 1 },
min : { _id : 0 },
max : { _id : MaxKey },
force : true
}).splitKeys;
printjson( splitKeys );
printjson( coll.stats() );
st.printShardingStatus();
jsTest.log( "Make sure our split is approximately in half..." );
assert.eq( splitKeys.length, 1 );
var splitKey = splitKeys[0]._id;
assert.gt( splitKey, ((250 * 1000) / 2) - 50 );
assert.lt( splitKey, ((250 * 1000) / 2) + 50 );
st.stop();
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