NoSQL 데이터베이스
NoSQL은 텔레미터 서비스인 Ceilometer가 자원 모니터링을 하면서 수집한 정보를 저장하는 데이터베이스입니다. 일종의 로그 같은 정보를 저장하기 때문에 관계형 DB인 MariaDB가 아닌 NoSQL인 MongoDB를 이용합니다. NoSQL 데이터베이스도 SQL 데이터베이스와 마찬가지로 컨트롤러 노드에 설치합니다.
1. apt-get install 명령어를 이용해 mongodb-server mongodb-clients python-pymongo 라이브러리를 설치합니다.
root@controller:~# apt-get install mongodb-server mongodb-clients python-pymongo Reading package lists… Done Building dependency tree
Reading state information… Done The following additional packages will be installed: libboost-filesystem1.58.0 libboost-program-options1.58.0 libboost-system1.58.0 libboost-thread1.58.0 libgoogle-perftools4 libpcrecpp0v5 libsnappy1v5 libtcmalloc-minimal4 libunwind8 libv8-3.14.5 libyaml-cpp0.5v5 python-bson python-bson-ext python- gridfs python-pymongo-ext Suggested packages: python-pymongo-doc The following NEW packages will be installed: libboost-filesystem1.58.0 libboost-program-options1.58.0 libboost-system1.58.0 libboost-thread1.58.0 libgoogle-perftools4 libpcrecpp0v5 libsnappy1v5 libtcmalloc-minimal4 libunwind8 libv8-3.14.5 libyaml-cpp0.5v5 mongodb-clients mongodb-server python-bson python-bson-ext python-gridfs python-pymongo python-pymongo-ext 0 upgraded, 18 newly installed, 0 to remove and 0 not upgraded. Need to get 58.1 MB of archives. After this operation, 197 MB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libpcrecpp0v5 amd64 2:8.38-3.1 [15.2 kB] Get:2 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libboost- system1.58.0 amd64 1.58.0+dfsg-5ubuntu3 [9,038 B] Get:3 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 libboost- filesystem1.58.0 amd64 1.58.0+dfsg-5ubuntu3 [37.6 kB] … Setting up python-pymongo-ext (3.2-1build1) … Processing triggers for libc-bin (2.23-0ubuntu3) … Processing triggers for systemd (229-4ubuntu6) … Processing triggers for ureadahead (0.100.0-19) …