настроен filebeat. без подключенного модуля nginx логи приходят в elasticsearch. Так же логи приходили, когда pipeline модуля nginx использовался по умолчанию. Получал ошибки 
Provided Grok expressions do not match field value: 
. В Grok Debugger выяснил и исправил ошибку парсинга, после внесения изменения правок в pipeline и обновления его в ingest логи толи прекратили поступать либо перестали отображаться в kibana.
filebeat запускал так: 
./filebeat -c filebeat.yml --modules=nginx
В логах
2019-03-14T18:19:31.236+0300    INFO    [monitoring]    log/log.go:124  Non-zero metrics in the last 30s        {"monitoring": {"metrics": {"beat":{"cpu":{"system":{"ticks":710,"time":713},"total":{"ticks":2640,"time":2651,"value":2640},"user":{"ticks":1930,"time":1938}},"info":{"ephemeral_id":"3a00ee7c-f02e-4c30-8efc-9ea00ab9fe73","uptime":{"ms":840022}},"memstats":{"gc_next":4249088,"memory_alloc":2199672,"memory_total":86654152,"rss":16384}},"filebeat":{"events":{"added":30,"done":30},"harvester":{"open_files":1,"running":1}},"libbeat":{"config":{"module":{"running":1}},"output":{"events":{"acked":30,"batches":10,"total":30},"read":{"bytes":3633},"write":{"bytes":22440}},"pipeline":{"clients":5,"events":{"active":0,"published":30,"total":30},"queue":{"acked":30}}},"registrar":{"states":{"current":2,"update":30},"writes":10},"system":{"load":{"1":0.07,"15":0.17,"5":0.11,"norm":{"1":0.0022,"15":0.0053,"5":0.0034}}}}}}
Пробовал запускать так: 
./filebeat -c filebeat.yml
В логах filebeat пусто
мои настройки: 
filebeat.yml
filebeat.prospectors:
- input_type: log
  paths:
    - /somelog/access.log
loging.level: debug
output.elasticsearch:
  hosts: ["host:9200"]
setup.kibana:
  host: "host:5601"
  username: "kibana"
  password: "kibanamama"
filebeat.config.modules:
  enabled: true
  path: ${path.config}/modules.d/*.yml
  paths:
    - /somelog/access.log
Указан фейковый, т.к. правильные указаны в настройках моудля nginx
../modules.d/nginx.yml
- module: nginx
  # Access logs
  access:
    enabled: true
    var.paths:  
      - /opt/ibm/appuser/nginx/nginx-1.14.2/logs/access.log
  # Error logs
  error:
    enabled: true
    var.paths:  
      - /opt/ibm/appuser/nginx/nginx-1.14.2/logs/error.log
default.json{
  "description": "Pipeline for parsing Nginx access logs. Requires the geoip and user_agent plugins.",
  "processors": [{
    "grok": {
      "field": "message",
      "patterns":[
        "\"?%{IP:nginx.access.remote_ip} - \\[%{TIMESTAMP_ISO8601:nginx.access.time}\\] \"%{WORD:nginx.access.method} %{DATA:nginx.access.url} HTTP/%{NUMBER:nginx.access.http_version}\" %{NUMBER:nginx.access.response_code} %{NUMBER:nginx.access.body_sent.bytes} \"%{DATA:nginx.access.referrer}\" \"%{DATA:nginx.access.agent}\" \"%{DATA:nginx.access.remote_ip_list}\""
        ],
      "pattern_definitions": {
        "IP_LIST": "%{IP}(\"?,?\\s*%{IP})*"
      },
      "ignore_missing": true
    }
  }, {
    "split": {
      "field": "nginx.access.remote_ip_list",
      "separator": "\"?,?\\s+"
    }
  }, {
    "script": {
      "lang": "painless",
      "inline": "boolean isPrivate(def ip) { try { StringTokenizer tok = new StringTokenizer(ip, '.'); int firstByte = Integer.parseInt(tok.nextToken());       int secondByte = Integer.parseInt(tok.nextToken());       if (firstByte == 10) {         return true;       }       if (firstByte == 192 && secondByte == 168) {         return true;       }       if (firstByte == 172 && secondByte >= 16 && secondByte <= 31) {         return true;       }       if (firstByte == 127) {         return true;       }       return false;     } catch (Exception e) {       return false;     }   }   def found = false;   for (def item : ctx.nginx.access.remote_ip_list) {     if (!isPrivate(item)) {       ctx.nginx.access.remote_ip = item;       found = true;       break;     }   }   if (!found) {     ctx.nginx.access.remote_ip = ctx.nginx.access.remote_ip_list[0];   }"
      }
  }, {
    "remove":{
      "field": "message"
    }
  }, {
    "rename": {
      "field": "@timestamp",
      "target_field": "read_timestamp"
    }
  }, {
    "date": {
      "field": "nginx.access.time",
      "target_field": "@timestamp",
      "formats": ["dd/MMM/YYYY:HH:mm:ss Z"]
    }
  }, {
    "remove": {
      "field": "nginx.access.time"
    }
  }, {
    "user_agent": {
      "field": "nginx.access.agent",
      "target_field": "nginx.access.user_agent"
    }
  }, {
    "remove": {
      "field": "nginx.access.agent"
    }
  }, {
    "geoip": {
      "field": "nginx.access.remote_ip",
      "target_field": "nginx.access.geoip"
    }
  }],
  "on_failure" : [{
    "set" : {
      "field" : "error.message",
      "value" : "{{ _ingest.on_failure_message }}"
    }
  }]
}
Фармат логов  access.log
10.127.238.137 - [2019-03-14T17:54:23+03:00] \"POST /nba/checkNewCalls HTTP/1.1\" 200 30 \"https://somhost:8453/test/index?tab=currentCommuni..." \"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36\" \"-\"