ssl - 如何解决远程服务器重新索引时的 SSL 握手问题

Question

我正在尝试从远程服务器重新索引到我的本地 es 索引。remote 是 https 主机，我收到 SSL 握手异常，如下错误，请指教，谢谢

{
  "source": {
    "remote": {
      "host": "https://otherhost:9200"
     },
    "index": "twitter",
    "query": {
      "match_all": {

      }
    }
  },
  "dest": {
    "index": "new_twitter"
  }
} 

这是回应：

{
    "error": {
        "root_cause": [
            {
                "type": "s_s_l_handshake_exception",
                "reason": "General SSLEngine problem"
            }
        ],
        "type": "s_s_l_handshake_exception",
        "reason": "General SSLEngine problem",
        "caused_by": {
            "type": "s_s_l_handshake_exception",
            "reason": "General SSLEngine problem",
            "caused_by": {
                "type": "validator_exception",
                "reason": "PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target",
                "caused_by": {
                    "type": "sun_cert_path_builder_exception",
                    "reason": "unable to find valid certification path to requested target"
                }
            }
        }
    },
    "status": 500
}