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//Test that oplog is created and populated on the config server by default
print( "Start config_oplog.js" );
var test = new ShardingTest( {mongos : 1, shards : 1, config : 1, other: {separateConfig:true}} );
var oplogCol = test.config0.getDB( "local" ).getCollection( "oplog.$main" );
var stats = oplogCol.stats( );
assert.eq( true, stats.capped );
assert.eq( 5 * 1024 * 1024, stats.storageSize );
test.admin.runCommand( {enableSharding : "test"} );
//make sure enableSharding was recorded in oplog
var oplogEntry = oplogCol.find( {ns : "config.databases"} ).sort( {$natural : -1} ).limit( 1 ).next();
assert.eq( "test", oplogEntry.o._id );
assert.eq( true, oplogEntry.o.partitioned );
test.stop();
var conn = startMongodTest( 30001, "config_oplog", false, { configsvr : "", oplogSize : 2 } );
stats = conn.getDB( "local" ).getCollection( "oplog.$main" ).stats();
assert.eq( true, stats.capped );
assert.eq( 2 * 1024 * 1024, stats.storageSize );
stopMongoProgram( 30001 );
print("END config_oplog.js");
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