[root@xdl-10-7 packetbeat]# bin/packetbeat -version
packetbeat version 6.0.0-beta2 (amd64), libbeat 6.0.0-beta2
[root@xdl-10-7 packetbeat]# cat /etc/redhat-release
CentOS Linux release 7.3.1611 (Core)
/var/log/message there are so many logs like this
Sep 28 10:27:01 xdl-10-7 packetbeat: panic: Too many events acked (expected=141, total=141)
Sep 28 10:27:01 xdl-10-7 packetbeat: goroutine 92 [running]:
Sep 28 10:27:01 xdl-10-7 packetbeat: github.com/elastic/beats/libbeat/publisher/queue/memqueue.(*Broker).reportACK(0xc4212ae000, 0xc421494000, 0x1000, 0x1000, 0x28a, 0x64)
Sep 28 10:27:01 xdl-10-7 packetbeat: /go/src/github.com/elastic/beats/libbeat/publisher/queue/memqueue/broker.go:271 +0x761
Sep 28 10:27:01 xdl-10-7 packetbeat: github.com/elastic/beats/libbeat/publisher/queue/memqueue.(*ackLoop).handleBatchSig(0xc4204ca680, 0xc422b65620)
Sep 28 10:27:01 xdl-10-7 packetbeat: /go/src/github.com/elastic/beats/libbeat/publisher/queue/memqueue/ackloop.go:101 +0x52c
Sep 28 10:27:01 xdl-10-7 packetbeat: github.com/elastic/beats/libbeat/publisher/queue/memqueue.(*ackLoop).run(0xc4204ca680)
Sep 28 10:27:01 xdl-10-7 packetbeat: /go/src/github.com/elastic/beats/libbeat/publisher/queue/memqueue/ackloop.go:53 +0x37a
Sep 28 10:27:01 xdl-10-7 packetbeat: github.com/elastic/beats/libbeat/publisher/queue/memqueue.NewBroker.func2(0xc4212ae000, 0xc4204ca680)
Sep 28 10:27:01 xdl-10-7 packetbeat: /go/src/github.com/elastic/beats/libbeat/publisher/queue/memqueue/broker.go:136 +0x59
Sep 28 10:27:01 xdl-10-7 packetbeat: created by github.com/elastic/beats/libbeat/publisher/queue/memqueue.NewBroker
Sep 28 10:27:01 xdl-10-7 packetbeat: /go/src/github.com/elastic/beats/libbeat/publisher/queue/memqueue/broker.go:137 +0x4cb
Sep 28 10:27:01 xdl-10-7 systemd: packetbeat.service: main process exited, code=exited, status=2/INVALIDARGUMENT
Sep 28 10:27:01 xdl-10-7 systemd: Unit packetbeat.service entered failed state.
Sep 28 10:27:01 xdl-10-7 systemd: packetbeat.service failed.
Sep 28 10:27:01 xdl-10-7 systemd: packetbeat.service holdoff time over, scheduling restart.
Sep 28 10:27:01 xdl-10-7 systemd: Started packetbeat.
Sep 28 10:27:01 xdl-10-7 systemd: Starting packetbeat...