I didn't set the scan_frequency option(which means leave as default 10s), why does it still use that much cpu?
Here is the log from filebeat:
2019-06-28T14:30:52.034+0800 INFO [monitoring] log/log.go:144 Non-zero metrics in the last 30s {"monitoring": {"metrics": {"beat":{"cpu":{"system":{"ticks":47740,"time":{"ms":1782}},"total":{"ticks":800400,"time":{"ms":29664},"value":800400},"user":{"ticks":752660,"time":{"ms":27882}}},"handles":{"limit":{"hard":1048576,"soft":1048576},"open":46},"info":{"ephemeral_id":"89e3b738-7016-49fa-af1c-3b7b560ea1b3","uptime":{"ms":810044}},"memstats":{"gc_next":67501680,"memory_alloc":46935904,"memory_total":150198960864}},"filebeat":{"events":{"active":107,"added":120138,"done":120031},"harvester":{"closed":1,"open_files":37,"running":37,"started":3}},"libbeat":{"config":{"module":{"running":0}},"output":{"events":{"acked":120026,"batches":59,"total":120026}},"outputs":{"kafka":{"bytes_write":21317697}},"pipeline":{"clients":1,"events":{"active":1163,"filtered":5,"published":120184,"total":120188},"queue":{"acked":120026}}},"registrar":{"states":{"cleanup":1,"current":47,"update":120031},"writes":{"success":59,"total":59}},"system":{"load":{"1":10.6,"15":10.48,"5":10.4,"norm":{"1":0.6625,"15":0.655,"5":0.65}}}}}}