当我使用fluent-plugin-elasticsearch将Fluentd收集的数据注入Elasticsearch时,一些数据导致以下错误:
2017-04-09 23:47:37 +0900 [error]: Could not push log to Elasticsearch: {"took"=>3, "errors"=>true, "items"=>[{"index"=>{"_index"=>"logstash-201704", "_type"=>"ruby", "_id"=>"AVtTLz_cUzkwT9CQCxrH", "status"=>400, "error"=>{"type"=>"mapper_parsing_exception", "reason"=>"failed to parse [message]", "caused_by"=>{"type"=>"illegal_state_exception", "reason"=>"Can't get text on a START_OBJECT at 1:27"}}}}, .....]}
似乎elasticsearch禁止错误failed to parse [message]
和Can't get text on a START_OBJECT at 1:27
的数据。但是我无法看到哪些数据被发送到Elasticsearch并且出了什么问题。
有什么想法吗?
答案 0 :(得分:0)
fluent-plugin-elasticsearch
使用_bulk API发送数据。我将请求转储代码放在/opt/td-agent/embedded/lib/ruby/gems/2.1.0/gems/elasticsearch-api-5.0.4/lib/elasticsearch/api/actions/bulk.rb
上,如下所示:
def bulk(arguments={})
...
payload = body
end
$log.info([method, path, params, payload].inspect) # <=== here ($log is global logger of fluentd)
perform_request(method, path, params, payload).body
我发现发送给Elasticsearch的请求如下:
POST /_bulk
{"index":{"_index":"logstash-201704","_type":"ruby"}}
{"level":"INFO","message":{"status":200,"time":{"total":46.26,"db":33.88,"view":12.38},"method":"PUT","path":"filtered","params":{"time":3815.904,"chapter_index":0},"response":[{}]},"node":"main","time":"2017-04-09T14:39:06UTC","tag":"filtered.console","@timestamp":"2017-04-09T23:39:06+09:00"}
问题是message
字段包含JSON对象,尽管此字段在Elasticsearch上被映射为已分析的字符串。