packetbeat不能持续发送数据，只是重启的时候发送一下数据

elk 5.6.10
packetbeat 5.6.10

packetbeat重启一下会采集数据，然后就不采集了 求解
 
 
2018/10/16 06:39:09.694409 mysql.go:709: WARN Invalid response: Data too small to contain a valid length
2018/10/16 06:39:09.786733 mysql.go:709: WARN Invalid response: Data too small to contain a valid length
2018/10/16 06:39:09.838897 mysql.go:709: WARN Invalid response: Data too small to contain a valid length
2018/10/16 06:39:09.934967 mysql.go:709: WARN Invalid response: Data too small to contain a valid length
2018/10/16 06:39:09.948021 mysql.go:709: WARN Invalid response: Data too small to contain a valid length
2018/10/16 06:39:18.542972 metrics.go:39: INFO Non-zero metrics in the last 30s: http.unmatched_responses=5 libbeat.es.call_count.PublishEvents=83 libbeat.es.publish.read_bytes=39775 libbeat.es.publish.write_bytes=2403846 libbeat.es.published_and_acked_events=4125 libbeat.publisher.messages_in_worker_queues=7 libbeat.publisher.published_events=3841 mysql.unmatched_requests=211 mysql.unmatched_responses=8 redis.unmatched_responses=24 tcp.dropped_because_of_gaps=258
2018/10/16 06:39:48.542965 metrics.go:39: INFO Non-zero metrics in the last 30s: libbeat.es.call_count.PublishEvents=74 libbeat.es.publish.read_bytes=35434 libbeat.es.publish.write_bytes=2066570 libbeat.es.published_and_acked_events=3662 libbeat.publisher.messages_in_worker_queues=7 libbeat.publisher.published_events=3164
2018/10/16 06:40:18.542926 metrics.go:39: INFO Non-zero metrics in the last 30s: libbeat.es.call_count.PublishEvents=67 libbeat.es.publish.read_bytes=32030 libbeat.es.publish.write_bytes=1886848 libbeat.es.published_and_acked_events=3305 libbeat.publisher.messages_in_worker_queues=24 libbeat.publisher.published_events=4160
2018/10/16 06:40:45.401897 mysql.go:709: WARN Invalid response: Data too small to contain a valid length