ES创建自定义模板，实现中文分词

一.通过ES的rest api，创建模板，设置好索引匹配，就可以了，不需要在logstash中作任何配置（推荐）

1.查看Logstash默认模板

GET     /_template/logstash

2.修改模板如下

{
    "order": 0,
    "version": 1,
#  *代表所有index都使用此模板
    "index_patterns": ["*"],
    "settings": {
        "index": {
            "refresh_interval": "5s"
        }
    },
    "mappings": {
        "_default_": {
            "dynamic_templates": [
                {
                    "message_field": {
                        "path_match": "message",
                        "match_mapping_type": "string",
                        "mapping": {
                            "type": "text",
                            "norms": false
                        }
                    }
                },
                {
                    "string_fields": {
                        "match": "*",
                        "match_mapping_type": "string",
                        "mapping": {
                            "type": "text",
                            "norms": false,
                            "analyzer": "ik_max_word",
                            "fields": {
                                "keyword": {
                                    "type": "keyword",
                                    "ignore_above": 256
                                }
                            }
                        }
                    }
                }
            ],
            "properties": {
                "@timestamp": {
                    "type": "date"
                },
                "@version": {
                    "type": "keyword"
                },
                "geoip": {
                    "dynamic": true,
                    "properties": {
                        "ip": {
                            "type": "ip"
                        },
                        "location": {
                            "type": "geo_point"
                        },
                        "latitude": {
                            "type": "half_float"
                        },
                        "longitude": {
                            "type": "half_float"
                        }
                    }
                }
            }
        }
    },
    "aliases": {}
}

3.创建模板

PUT     /_template/myik  myik是自定义名称  

把上一步的模板内容放在body中。

4.正常使用logstash同步数据即可，大功告成！

二.可以通过logstash，比较麻烦，且容易不生效，不推荐

查看Logstash默认模板

GET     /_template/logstash

修改模板如下

{
    "order": 0,
    "version": 1,
    "index_patterns": ["*"],
    "settings": {
        "index": {
            "refresh_interval": "5s"
        }
    },
    "mappings": {
        "_default_": {
            "dynamic_templates": [
                {
                    "message_field": {
                        "path_match": "message",
                        "match_mapping_type": "string",
                        "mapping": {
                            "type": "text",
                            "norms": false
                        }
                    }
                },
                {
                    "string_fields": {
                        "match": "*",
                        "match_mapping_type": "string",
                        "mapping": {
                            "type": "text",
                            "norms": false,
                            "analyzer": "ik_max_word",
                            "fields": {
                                "keyword": {
                                    "type": "keyword",
                                    "ignore_above": 256
                                }
                            }
                        }
                    }
                }
            ],
            "properties": {
                "@timestamp": {
                    "type": "date"
                },
                "@version": {
                    "type": "keyword"
                },
                "geoip": {
                    "dynamic": true,
                    "properties": {
                        "ip": {
                            "type": "ip"
                        },
                        "location": {
                            "type": "geo_point"
                        },
                        "latitude": {
                            "type": "half_float"
                        },
                        "longitude": {
                            "type": "half_float"
                        }
                    }
                }
            }
        }
    },
    "aliases": {}
}

新增如下配置，用于更新模板，设置中文分词

# 定义模板名称
template_name => "myik"
# 模板所在位置
template => "/usr/local/logstash-6.4.3/sync/logstash-ik.json"
# 重写模板
template_overwrite => true
# 默认为true，false关闭logstash自动管理模板功能，如果自定义模板，则设置为false
manage_template => false

重新运行Logstash进行同步

./logstash -f /usr/local/logstash-6.4.3/sync/logstash-db-sync.conf