Encountered a retryable error. Will Retry with exponential backoff code=>400

logstash 给 elasticsearch 发送数据，logstash 中 stdout { codec => rubydebug } 可以输出解析后的数据；但是logstash-output-elasticsearch 组件异常；错误如下：

[ERROR][logstash.outputs.elasticsearch] Encountered a retryable error. Will Retry with exponential backoff  {:code=>400, :url=>"http://elasticsearch:9200/_bulk"}

 
logstash 配置如下：

input {

  udp {

    port => 55144

    type => "log"

  }

}

output {

  stdout { codec => rubydebug }



  elasticsearch {

        hosts => ["******"]

        index => "alarm"

        document_type => "udp"

        manage_template => true

        template => "/etc/template/logstash_***.json"

        template_name => "***_template"

        template_overwrite => true

    } 

}

 
elasticsearch 没有报任何异常和任何log