v0.2

1、fix elasticsearch v5 bulk api, show more details error reason
2、fix sflow index SrcPort type [long]->[keyword]

sflow parse & elasticsearch output

sudo ./sflowtool -p 9999 -ee en0 -t all -ises

Usage of ./sflowtool:
  -chost string
    	udp CounterSample 传输主机:端口 (default "127.0.0.1:7777")
  -d string
    	Enable certain debug selectors
  -debug
    	是否开启debug model
  -e	Log to stderr and disable syslog/file output
  -ee string
    	网卡名 (default "en0")
  -es string
    	elasticsearch 5.6 接口地址 (default "http://127.0.0.1:9200")
  -graceful
    	listen on open fd (after forking)
  -host string
    	udp SFlowSample And Netflow 传输主机:端口 (default "127.0.0.1:6666")
  -index string
    	es index name, example: sflow-2019-09-06 (default "sflow")
  -ises
    	是否开启output到elasticsearch
  -p string
    	端口 (default "6343")
  -s string
    	协议 (default "udp")
  -socketorder string
    	previous initialization order - used when more than one listener was started
  -strict.perms
    	Strict permission checking on config files (default true)
  -t string
    	类型:all(sflowSample|Counter),counter(SflowCounter),sample(SflowSample),netflow (default "all")
  -udp
    	是否开启udp数据传输,默认不开启
  -v	Log at INFO level