elasticsearch常用请求

1.打开集群transport请求日志

高版本

curl -H "Content-Type: application/json" -XPUT 'http://localhost:9200/_cluster/settings' -d '{ "transient" : { "logger.org.elasticsearch.transport.TransportService.tracer" : "TRACE" }}'

低版本

curl -XPUT 'http://localhost:9200/_cluster/settings' -d '{ "transient" : { "logger.org.elasticsearch.transport.TransportService.tracer" : "TRACE" }}'

2.分片迁移节点命令

高版本
curl -H "Content-Type: application/json" -XPOST 'http://localhost:9200/_cluster/reroute' -d '{
"commands":[{
"move":{
"index":"index_name",
"shard":0,
"from_node":"es-1",
"to_node":"es-8"
}}]}'

3.设置索引别名

curl -XPOST http://localhost:9200/_aliases/ -d '
{
"actions": [
{
"add": {
"index": "test_index",    
"alias": "test_index_alias"
}
}
]
}'

新版本

curl -H "Content-Type: application/json" -XPOST http://localhost:9200/_aliases/ -d '
{
"actions": [
{
"add": {
"index": "index_1",
"alias": "index_main"
}
}
]
}'

4.打开索引慢查询日志

curl -XPUT http://localhosts:9200/api_relation_student_live/_settings/ -d '{
"index.search.slowlog.threshold.query.warn":"600ms", 
"index.search.slowlog.threshold.fetch.debug":"1s",
"index.search.slowlog.threshold.fetch.info":"2s",
"index.search.slowlog.threshold.fetch.trace":"100ms",
"index.search.slowlog.threshold.query.info":"2s",
"index.search.slowlog.threshold.query.trace":"100ms",
"index.search.slowlog.threshold.fetch.warn":"600ms",
"index.search.slowlog.threshold.query.debug":"1s"
}'

设置查询时间限制为不同级别日志生成限制

5.动态设置查询返回条数

 curl -H "Content-Type: application/json" -XPUT http://localhost:9200/api_index_name/_settings -d '{ "index" : { "max_result_window" : 500000}}'