Graylog解决超出ES搜索最大窗口限制问题

????????今天在查询日志的时候graylog报了一个错：

While retrieving data for this widget, the following error(s) occurred:
Unable to perform search query: Elasticsearch exception [type=illegal_argument_exception, reason=Result window is too large, from + size must be less than or equal to: [10000] but was [12081150]. See the scroll api for a more efficient way to request large data sets. This limit can be set by changing the [index.max_result_window] index level setting.].

????????说是ES默认设置最大搜索窗口（index.max_result_window）为10000条，也是是搜索可以返回的条数

????????查了下可以修改index.max_result_window

1.修改现有的索引

? ? ? ? 在ES所在的服务器中输入以下指令

curl -H "Content-Type: application/json" -XPUT http://127.0.0.1:9200/_all/_settings -d '{ "index" : { "max_result_window" : 1000000}}'

2.修改索引模板，从而新创建的索引也修改index.max_result_window

curl -H "Content-Type: application/json" -XPUT http://127.0.0.1:9200/_template/graylog-gdmp-mapping -d '{
? "order": 1,
? "index_patterns": [
? ? "gdmp_*"
? ],
? "settings": {
? ? "index": {
? ? ? "analysis": {
? ? ? ? "analyzer": {
? ? ? ? ? "analyzer_keyword": {
? ? ? ? ? ? "filter": "lowercase",
? ? ? ? ? ? "tokenizer": "keyword"
? ? ? ? ? }
? ? ? ? }
? ? ? },
? ? ? "max_result_window": 1000000
? ? }
? },
? "mappings": {
? ? "_source": {
? ? ? "enabled": true
? ? },
? ? "dynamic_templates": [
? ? ? {
? ? ? ? "internal_fields": {
? ? ? ? ? "mapping": {
? ? ? ? ? ? "type": "keyword"
? ? ? ? ? },
? ? ? ? ? "match_mapping_type": "string",
? ? ? ? ? "match": "gl2_*"
? ? ? ? }
? ? ? },
? ? ? {
? ? ? ? "store_generic": {
? ? ? ? ? "mapping": {
? ? ? ? ? ? "type": "keyword"
? ? ? ? ? },
? ? ? ? ? "match_mapping_type": "string"
? ? ? ? }
? ? ? }
? ? ],
? ? "properties": {
? ? ? "streams": {
? ? ? ? "type": "keyword"
? ? ? },
? ? ? "message": {
? ? ? ? "fielddata": false,
? ? ? ? "analyzer": "standard",
? ? ? ? "type": "text"
? ? ? },
? ? ? "timestamp": {
? ? ? ? "format": "uuuu-MM-dd HH:mm:ss.SSS",
? ? ? ? "type": "date"
? ? ? }
? ? }
? }
}'

• ?这个 cURL 命令的目的是在 Elasticsearch 中创建或更新名为 graylog-gdmp-mapping 的模板，该模板适用于以 gdmp_ 开头的所有索引，并定义了相应的映射和设置。