一、原因:

查看logstash的日志报错如下:tail -f logstash-plain.log

"error"=>{"type"=>"validation_exception", "reason"=>"Validation Failed: 1: this action would add [2] shards, but this cluster currently has [999]/[1000] maximum normal shards open;"}

二、修改参数,增大分片最大数量

进入kibana,进入开发工具进行修改,persistent 是永久修改,如果只是临时修改,用 transient 替换 persistent ,

PUT _cluster/settings
{
  "persistent": {
    "cluster": {
      "max_shards_per_node":20000
    }
  }
}

如果是elasticsearch配置修改,在配置文件中增加以下参数配置:

cluster.max_shards_per_node: 20000

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