failed to run inline script [ctx.op = ctx._source.views == count ? delete : none] using lang [groovy]

问题描述

学习 Elasticsearch 时遇到下面的指令

curl -XPOST http://localhost:9200/website/blog/1/_update?pretty -d '
{
    "script":"ctx.op = ctx._source.views == count ? 'delete' : 'none'",
    "params":{
        "count":1
    }
}'

输入之后出现错误

{
  "error" : {
    "root_cause" : [ {
      "type" : "remote_transport_exception",
      "reason" : "[Noh-Varr][127.0.0.1:9300][indices:data/write/update[s]]"
    } ],
    "type" : "illegal_argument_exception",
    "reason" : "failed to execute script",
    "caused_by" : {
      "type" : "groovy_script_execution_exception",
      "reason" : "failed to run inline script [ctx.op = ctx._source.views == count ? delete : none] using lang [groovy]",
      "caused_by" : {
        "type" : "missing_property_exception",
        "reason" : "No such property: delete for class: c30a274307ef10b240f1f85b3ca62f105ece21af"
      }
    }
  },
  "status" : 400
}

产生原因

此问题由单引号引起

解决办法

将指令改为以下形式

curl -XPOST http://localhost:9200/website/blog/1/_update?pretty -d '
{
    "script":"ctx.op = ctx._source.views == count ? '"'"'delete'"'"' : '"'"'none'"'",
    "params":{
        "count":1
    }
}'

参考来源

Stack Overflow