Failed to install template.
{:message=>"Got response code '500'
 contacting Elasticsearch at URL 'http://xxxxx:9200/_xpack'", :class=>"LogStash::Outputs::ElasticSearch::HttpClient::Pool::BadResponseCodeError", :backtrace=>["/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/manticore_adapter.rb:80:in `perform_request'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:291:in `perform_request_to_url'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:278:in `block in perform_request'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:373:in `with_connection'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:277:in `perform_request'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:285:in `block in Pool'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client.rb:162:in `get'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client.rb:378:in `get_xpack_info'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/ilm.rb:57:in `ilm_ready?'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/ilm.rb:28:in `ilm_in_use?'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/template_manager.rb:14:in `install_template'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/common.rb:130:in `install_template'", "/Users/qitianming/workTool/logstash-7.4.0/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/common.rb:51:in `block in setup_after_successful_connection'"]}

昨天遇到了一个问题，本地搭建了一个logstash ，elastic部署在了专有云上。导致无法导入项目。

经过排查和查找资料发现

目前云服务没有集成x-pack插件，自行搭建logstash连接css服务的时候，会检查es是否启用了x-pack。

顺着这个思路，我们需要做两步

1、既然没有用到x-pack那直接在本地删除x-pack就可以了

2、修改logstash配置文件output标签下elasticsearch内添加配置项ilm_enabled => false。

ilm_enabled 实际含义

Logstash & 索引生命周期管理（ILM） - 哈喽哈喽111111 - 博客园

默认设置为false将禁用索引生命周期管理功能。

如果Elasticsearch集群支持，将此标志设置为true将启用索引生命周期管理功能。这是在7.0.0之前的Elasticsearch版本上启用索引生命周期管理所必需的。

如果Elasticsearch集群运行的是Elasticsearch 7.0.0或更高版本并启用了ILM特性，将此标志设置为auto将自动启用索引生命周期管理特性，否则将禁用它。