Hi all, Toshiba GridDB[1][2] is a highly scalable distributed NoSQL database for IoT and Big Data. It has very good scalability and performance[3]. It also has Community Edition licensed under GNU AGPL v3 and the source code is available at Github[4][5][6]. It looks suitable for Monasca repository, so I'm writing GridDB repository drivers for monasca-api/-persister[7][8]. They work well but need unit tests. Anyone interested? Thank you, Akira Yoshiyama [1]http://solutions.toshiba.com/overview.html [2]https://griddb.net/en/docs/documents/1-1_what-is-griddb.php [3]https://griddb.net/ja/blog/griddb-and-cassandra-ycsb-benchmarks/ [4]https://github.com/griddb/griddb_nosql [5]https://github.com/griddb/c_client [6]https://github.com/griddb/griddb_client [7]https://review.openstack.org/#/c/495504/ [8]https://review.openstack.org/#/c/495505/