windows下Logstash6.5.3版本讀取文件輸入不生效、配置elasticsearch模板后數據入es報錯:Rejecting mapping update to [hello-world-2020.09.10] as the final mapping would have more than 1 type: [_doc, doc]"}


  首先講個題外話。logstash配置文件hello-world.json上篇也提到過,不過那是7.9.0版本的,注意mapping下面是沒有type的,因為默認的type就是_doc:

{
    "index_patterns": ["hello-world-%{+YYYY.MM.dd}"],
    "order": 0,
    "settings": {
        "index.refresh_interval": "10s"
    },
    "mappings": {
        "properties": {
            "createTime": {
                "type": "long"                
            },
            "sessionId": {
                "type": "text",    
                "fielddata": true,
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "chart": {
                "type": "text",
                "analyzer": "ik_max_word",
                "search_analyzer": "ik_max_word"
            }
        }
    }
}

 

  如果我們拿上面這個模板放到logstash的6.5.3版本去跑,會提示mapper_parsing_exception,原因是:

Root mapping definition has unsupported parameters:  [createTime : {type=long}] [sessionId : {fielddata=true, type=text, fields={keyword={ignore_above=256, type=keyword}}}] [chart : {search_analyzer=ik_max_word, analyzer=ik_max_word, type=text}]

 

  為啥不支持,因為我們沒有提供mapping的type,所以我們只能加上一個映射類型,比如我們就使用_doc,模板文件內容新增節點_doc:

{
  "index_patterns": [
    "hello-world-%{+YYYY.MM.dd}"
  ],
  "order": 0,
  "settings": {
    "index.refresh_interval": "10s"
  },
  "mappings": {
    "_doc": {
      "properties": {
        "createTime": {
          "type": "long"
        },
        "sessionId": {
          "type": "text",
          "fielddata": true,
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "chart": {
          "type": "text",
          "analyzer": "ik_max_word",
          "search_analyzer": "ik_max_word"
        }
      }
    }
  }
}

 

  好了,重啟logstash,這次啟動沒報錯。回歸正題,我們給logstash配置輸入源是:

input{
 file {
    path => "D:\wlf\logs\*"
    start_position => "beginning"
    type => "log"
  }
}

 

  啟動沒有報錯,但靜悄悄,文件在D盤里,數據也有的,但沒有任何動靜,elasticsearch也沒有收到數據。這里比較奇葩的是path指定的目錄分隔符,它要求使用的不再是我們習慣上windows環境下的反斜杠,而是linux下的斜杠,所以把path改成:

path => "D:/wlf/logs/*"

  重啟啟動logstash,終於在啟動結束后有了動靜,數據往elasticsearch插入了,只不過插入失敗了,我們迎來了新的報錯:

[2020-09-10T09:46:23,198][WARN ][logstash.outputs.elasticsearch] Could not index event to Elasticsearch. {:status=>400, :action=>["index", {:_id=>nil, :_index=>"hello-world-2020.09.10", :_type=>"doc", :routing=>nil}, #<LogStash::Event:0x15dfbf91>], :response=>{"index"=>{"_index"=>"after-cdr-2020.09.10", "_type"=>"doc", "_id"=>"jX-xdXQBTQnatMJTUOJU", "status"=>400, "error"=>{"type"=>"illegal_argument_exception", "reason"=>"Rejecting mapping update to [hello-world-2020.09.10] as the final mapping would have more than 1 type: [_doc, doc]"}}}}

 

  日志說elasticsearch的hello-world-2020.09.10索引要的映射type是_doc,而我們給的卻是doc,所以拒絕為此索引更新映射。我們到kiban確認下這個問題:

 

 

 

  模板是對的,插入一條數據試試:

 

 

 

  一點問題沒有,那么按日志里的提示,我們試試映射類型為doc的:

 

 

 

  問題重現了,這里為啥logstash要使用doc類型而不是_doc類型呢?還不是默認值搞的鬼。我們不使用默認值就好了,在輸出器中指定映射類型為_doc:

output {
    elasticsearch{
        hosts => "localhost:9200"
        index => "hello-world-%{+YYYY.MM.dd}"
        manage_template => true
        template_name => "hello"
        template_overwrite => true
        template => "D:\elk\logstash-6.5.3\config\hello-world.json"
        document_type => "_doc"
    }
}

 

  再次重啟logstash,啟動ok,但之前D盤里的文件已經傳輸過一次(雖然是失敗的),所以elasticsearch還是靜悄悄,我們可以手動打開其中某個文件,復制其中一條數據后保存,或者直接復制一個文件,隨后新的數據會被傳輸到elasticsearch去,這次會順利,沒有異常,直接到elasticsearch去查同步的數據即可。


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