LevelDB is optimized for batch write operations .
LevelDB优化了批量写操作。
LevelDB is an embedded key-value datastore whose keys and associated values are arbitrary byte arrays sorted by key , a sorting mechanism that can be overridden .
它的键和关联值可以是任意的字节数组，并且按照键值排序，排序机制是可以被重载的。
leveldb