In this study, we introduce a simple and high-speed search engine for large-scale system logs, called Hayabusa. Hayabusa uses SQLite, standard lightweight database software with GNU Parallel and general Linux commands, such that it can run efficiently without complex components. Network administrators can use Hayabusa to accumulate and store log information at high speeds and to search the logs quickly. In our experiments, Hayabusa required only 8 seconds to convert 1.2Mlog messages into a database file. Moreover, Hayabusa required only 5 seconds to search a keyword from 1.7 billion records. Hayabusa achieved high-performance search speed in a stand-Alone environment without a complex distributed environment. Compared with the distributed environment, Spark, the proposed standalone Hayabusa was approximately 27 times faster.