grafana query example
네트워크 트래픽SELECT derivative(mean("bytes_recv"),1s) FROM "net" WHERE "interface" = 'eth0' AND $timeFilter GROUP BY time(10s), "host" 디스크 사용량SELECT mean("used_percent") FROM "disk" WHERE "device" = 'xvdb' AND $timeFilter GROUP BY time(10s), "host" Memory 사용량SELECT mean("used_percent") FROM "mem" WHERE $timeFilter GROUP BY time(10s), "host" CPU 사용량SELECT 100-mean("usage_idle") FROM "cpu" WHERE "cpu" ..