elasticsearch 学习笔记之二 常见接口
一、索引操作类
1、创建索引（PUT /索引名称）
PUT /my-index-000001
请求body
{ "settings": { "index": { "number_of_shards": 3, //创建3个主片 "number_of_replicas": 2 //每个主片都会有两个副本 } } }
未指定mapping的情况下，使用默认的
2、删除索引（DELETE /索引） （会删除索引的数据及其配置） DELETE /iotrm_event_event_acs* 表示删除 iotrm_event_event_acs 开头的索引
注意：使用 Delete Index API 是不可逆的操作，一旦执行，索引及其所有数据都将被永久删除
http://10.19.214.13:9200/data_iotrm_event_event_acs%240x00030403_2024-10-29?pretty --- 删除索引data_iotrm_event_event_acs$0x00030403_2024-10-29
3、修改索引
4、查看某个索引下的文档数据总量（GET /索引名称/_count）
http://10.19.223.119:9200/iotrm_event_cl2event_2024-10-29/_count
{ "count": 155701, "_shards": { "total": 3, "successful": 3, "skipped": 0, "failed": 0 } }
5、查看所有索引信息（GET _cat/indices?v&format） --- 包括数据量、占用大小
http://10.19.223.119:9200/_cat/indices?v
列说明：
- pri:主片数量
- rep:副本数量
- store.size:总共存储大小（主片+副本）
- pri.store.size：主片大小
6、查看某个索引信息（GET _cat/indices/索引名称?v&format） --- 包括数据量、占用大小
http://10.19.223.119:9200/_cat/indices/iotrm_event_cl2telemeter_2024-09-20?v
query参数：bytes="b", format="json"
7、关闭所有索引（POST /*/_close） --- 关闭某个索引 将*替换成具体的索引名称即可，多个明确的索引要关闭的话可以使用逗号隔开
http://10.19.214.13:9200/*/_close
8、打开所有索引（POST /*/_open） --- 打开某个索引 将*替换成具体的索引名称即可，多个明确的索引要打开的话可以使用逗号隔开
http://10.19.214.13:9200/*/_open
9、查看一个索引数据实际分布到各个节点机器的不同分片的情况（GET /_cat/shards/索引名称）
http://10.19.223.119:9200/_cat/shards/iotrm_event_event_towercrane$0x00054001_2024-10-29?v
图上可以看到这个索引副本都没有创建
10、查看一个索引定义信息，包括 aliases、mappings、settings（GET /索引名称）
http://10.19.223.119:9200/iotrm_event_temperaturetelemeter_2024-10-29
{ "iotrm_event_temperaturetelemeter_2024-10-29": { "aliases": {}, "mappings": { "properties": { "IOTProtocolType": { "type": "long" }, "basic": { "properties": { "IOTProtocolType": { "type": "long" }, "UUID": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "channelIndexCode": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "dateTime": { "type": "date" }, "domain": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "eventType": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "imageServerCode": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "indexCode": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "ipV4Address": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "ipV6Address": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "localIndex": { "type": "long" }, "macAddress": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "resourceCategory": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "sendTime": { "type": "date" } } }, "dataType": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "eventType": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "targetAttrs": { "properties": { "cameraIndexCode": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "customCategory": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "deviceCategory": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "deviceIndexCode": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "deviceName": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "deviceType": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "extendDeviceCode": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "modelId": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "orgPath": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "tenantId": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } } } }, "telemeter": { "properties": { "tag": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore_above": 256 } } }, "test": { "type": "long" }, "value": { "type": "float" } } } } }, "settings": { "index": { "routing": { "allocation": { "include": { "_tier_preference": "data_content" } } }, "number_of_shards": "3", "provided_name": "iotrm_event_temperaturetelemeter_2024-10-29", "creation_date": "1730365148113", "number_of_replicas": "1", "uuid": "XAQiTzvoTwGDYi2DMGeRJA", "version": { "created": "7100299" } } } } }
11、查看某个索引的 primary 存储信息（GET /索引名称/_stats/store）
http://10.19.223.119:9200/iotrm_event_event_towercrane%240x00054001_2024-10-29/_stats/store
{ "_shards": { "total": 6, "successful": 3, "failed": 0 }, "_all": { "primaries": { "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 } }, "total": { "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 } } }, "indices": { "iotrm_event_event_towercrane$0x00054001_2024-10-29": { "uuid": "LUuow0N6TCOEvIDnYu1eUQ", "primaries": { "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 } }, "total": { "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 } } } } }
12、查看指定索引的统计信息（GET /索引名称/_stats）
http://10.19.223.119:9200/iotrm_event_event_towercrane%240x00054001_2024-10-29/_stats
{ "_shards": { "total": 6, "successful": 3, "failed": 0 }, "_all": { "primaries": { "docs": { "count": 36927, "deleted": 5767 }, "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 }, "indexing": { "index_total": 0, "index_time_in_millis": 0, "index_current": 0, "index_failed": 0, "delete_total": 1444, "delete_time_in_millis": 98, "delete_current": 0, "noop_update_total": 0, "is_throttled": false, "throttle_time_in_millis": 0 }, "get": { "total": 0, "time_in_millis": 0, "exists_total": 0, "exists_time_in_millis": 0, "missing_total": 0, "missing_time_in_millis": 0, "current": 0 }, "search": { "open_contexts": 0, "query_total": 1328, "query_time_in_millis": 1884, "query_current": 0, "fetch_total": 6, "fetch_time_in_millis": 131, "fetch_current": 0, "scroll_total": 3, "scroll_time_in_millis": 1412, "scroll_current": 0, "suggest_total": 0, "suggest_time_in_millis": 0, "suggest_current": 0 }, "merges": { "current": 0, "current_docs": 0, "current_size_in_bytes": 0, "total": 0, "total_time_in_millis": 0, "total_docs": 0, "total_size_in_bytes": 0, "total_stopped_time_in_millis": 0, "total_throttled_time_in_millis": 0, "total_auto_throttle_in_bytes": 62914560 }, "refresh": { "total": 15, "total_time_in_millis": 176, "external_total": 12, "external_total_time_in_millis": 186, "listeners": 0 }, "flush": { "total": 6, "periodic": 0, "total_time_in_millis": 4303 }, "warmer": { "current": 0, "total": 9, "total_time_in_millis": 0 }, "query_cache": { "memory_size_in_bytes": 0, "total_count": 0, "hit_count": 0, "miss_count": 0, "cache_size": 0, "cache_count": 0, "evictions": 0 }, "fielddata": { "memory_size_in_bytes": 1456, "evictions": 0 }, "completion": { "size_in_bytes": 0 }, "segments": { "count": 9, "memory_in_bytes": 92804, "terms_memory_in_bytes": 73152, "stored_fields_memory_in_bytes": 4584, "term_vectors_memory_in_bytes": 0, "norms_memory_in_bytes": 10304, "points_memory_in_bytes": 0, "doc_values_memory_in_bytes": 4764, "index_writer_memory_in_bytes": 0, "version_map_memory_in_bytes": 0, "fixed_bit_set_memory_in_bytes": 0, "max_unsafe_auto_id_timestamp": -1, "file_sizes": {} }, "translog": { "operations": 0, "size_in_bytes": 165, "uncommitted_operations": 0, "uncommitted_size_in_bytes": 165, "earliest_last_modified_age": 24819785 }, "request_cache": { "memory_size_in_bytes": 348918, "evictions": 0, "hit_count": 174, "miss_count": 114 }, "recovery": { "current_as_source": 0, "current_as_target": 0, "throttle_time_in_millis": 0 } }, "total": { "docs": { "count": 36927, "deleted": 5767 }, "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 }, "indexing": { "index_total": 0, "index_time_in_millis": 0, "index_current": 0, "index_failed": 0, "delete_total": 1444, "delete_time_in_millis": 98, "delete_current": 0, "noop_update_total": 0, "is_throttled": false, "throttle_time_in_millis": 0 }, "get": { "total": 0, "time_in_millis": 0, "exists_total": 0, "exists_time_in_millis": 0, "missing_total": 0, "missing_time_in_millis": 0, "current": 0 }, "search": { "open_contexts": 0, "query_total": 1328, "query_time_in_millis": 1884, "query_current": 0, "fetch_total": 6, "fetch_time_in_millis": 131, "fetch_current": 0, "scroll_total": 3, "scroll_time_in_millis": 1412, "scroll_current": 0, "suggest_total": 0, "suggest_time_in_millis": 0, "suggest_current": 0 }, "merges": { "current": 0, "current_docs": 0, "current_size_in_bytes": 0, "total": 0, "total_time_in_millis": 0, "total_docs": 0, "total_size_in_bytes": 0, "total_stopped_time_in_millis": 0, "total_throttled_time_in_millis": 0, "total_auto_throttle_in_bytes": 62914560 }, "refresh": { "total": 15, "total_time_in_millis": 176, "external_total": 12, "external_total_time_in_millis": 186, "listeners": 0 }, "flush": { "total": 6, "periodic": 0, "total_time_in_millis": 4303 }, "warmer": { "current": 0, "total": 9, "total_time_in_millis": 0 }, "query_cache": { "memory_size_in_bytes": 0, "total_count": 0, "hit_count": 0, "miss_count": 0, "cache_size": 0, "cache_count": 0, "evictions": 0 }, "fielddata": { "memory_size_in_bytes": 1456, "evictions": 0 }, "completion": { "size_in_bytes": 0 }, "segments": { "count": 9, "memory_in_bytes": 92804, "terms_memory_in_bytes": 73152, "stored_fields_memory_in_bytes": 4584, "term_vectors_memory_in_bytes": 0, "norms_memory_in_bytes": 10304, "points_memory_in_bytes": 0, "doc_values_memory_in_bytes": 4764, "index_writer_memory_in_bytes": 0, "version_map_memory_in_bytes": 0, "fixed_bit_set_memory_in_bytes": 0, "max_unsafe_auto_id_timestamp": -1, "file_sizes": {} }, "translog": { "operations": 0, "size_in_bytes": 165, "uncommitted_operations": 0, "uncommitted_size_in_bytes": 165, "earliest_last_modified_age": 24819785 }, "request_cache": { "memory_size_in_bytes": 348918, "evictions": 0, "hit_count": 174, "miss_count": 114 }, "recovery": { "current_as_source": 0, "current_as_target": 0, "throttle_time_in_millis": 0 } } }, "indices": { "iotrm_event_event_towercrane$0x00054001_2024-10-29": { "uuid": "LUuow0N6TCOEvIDnYu1eUQ", "primaries": { "docs": { "count": 36927, "deleted": 5767 }, "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 }, "indexing": { "index_total": 0, "index_time_in_millis": 0, "index_current": 0, "index_failed": 0, "delete_total": 1444, "delete_time_in_millis": 98, "delete_current": 0, "noop_update_total": 0, "is_throttled": false, "throttle_time_in_millis": 0 }, "get": { "total": 0, "time_in_millis": 0, "exists_total": 0, "exists_time_in_millis": 0, "missing_total": 0, "missing_time_in_millis": 0, "current": 0 }, "search": { "open_contexts": 0, "query_total": 1328, "query_time_in_millis": 1884, "query_current": 0, "fetch_total": 6, "fetch_time_in_millis": 131, "fetch_current": 0, "scroll_total": 3, "scroll_time_in_millis": 1412, "scroll_current": 0, "suggest_total": 0, "suggest_time_in_millis": 0, "suggest_current": 0 }, "merges": { "current": 0, "current_docs": 0, "current_size_in_bytes": 0, "total": 0, "total_time_in_millis": 0, "total_docs": 0, "total_size_in_bytes": 0, "total_stopped_time_in_millis": 0, "total_throttled_time_in_millis": 0, "total_auto_throttle_in_bytes": 62914560 }, "refresh": { "total": 15, "total_time_in_millis": 176, "external_total": 12, "external_total_time_in_millis": 186, "listeners": 0 }, "flush": { "total": 6, "periodic": 0, "total_time_in_millis": 4303 }, "warmer": { "current": 0, "total": 9, "total_time_in_millis": 0 }, "query_cache": { "memory_size_in_bytes": 0, "total_count": 0, "hit_count": 0, "miss_count": 0, "cache_size": 0, "cache_count": 0, "evictions": 0 }, "fielddata": { "memory_size_in_bytes": 1456, "evictions": 0 }, "completion": { "size_in_bytes": 0 }, "segments": { "count": 9, "memory_in_bytes": 92804, "terms_memory_in_bytes": 73152, "stored_fields_memory_in_bytes": 4584, "term_vectors_memory_in_bytes": 0, "norms_memory_in_bytes": 10304, "points_memory_in_bytes": 0, "doc_values_memory_in_bytes": 4764, "index_writer_memory_in_bytes": 0, "version_map_memory_in_bytes": 0, "fixed_bit_set_memory_in_bytes": 0, "max_unsafe_auto_id_timestamp": -1, "file_sizes": {} }, "translog": { "operations": 0, "size_in_bytes": 165, "uncommitted_operations": 0, "uncommitted_size_in_bytes": 165, "earliest_last_modified_age": 24819785 }, "request_cache": { "memory_size_in_bytes": 348918, "evictions": 0, "hit_count": 174, "miss_count": 114 }, "recovery": { "current_as_source": 0, "current_as_target": 0, "throttle_time_in_millis": 0 } }, "total": { "docs": { "count": 36927, "deleted": 5767 }, "store": { "size_in_bytes": 13069189, "reserved_in_bytes": 0 }, "indexing": { "index_total": 0, "index_time_in_millis": 0, "index_current": 0, "index_failed": 0, "delete_total": 1444, "delete_time_in_millis": 98, "delete_current": 0, "noop_update_total": 0, "is_throttled": false, "throttle_time_in_millis": 0 }, "get": { "total": 0, "time_in_millis": 0, "exists_total": 0, "exists_time_in_millis": 0, "missing_total": 0, "missing_time_in_millis": 0, "current": 0 }, "search": { "open_contexts": 0, "query_total": 1328, "query_time_in_millis": 1884, "query_current": 0, "fetch_total": 6, "fetch_time_in_millis": 131, "fetch_current": 0, "scroll_total": 3, "scroll_time_in_millis": 1412, "scroll_current": 0, "suggest_total": 0, "suggest_time_in_millis": 0, "suggest_current": 0 }, "merges": { "current": 0, "current_docs": 0, "current_size_in_bytes": 0, "total": 0, "total_time_in_millis": 0, "total_docs": 0, "total_size_in_bytes": 0, "total_stopped_time_in_millis": 0, "total_throttled_time_in_millis": 0, "total_auto_throttle_in_bytes": 62914560 }, "refresh": { "total": 15, "total_time_in_millis": 176, "external_total": 12, "external_total_time_in_millis": 186, "listeners": 0 }, "flush": { "total": 6, "periodic": 0, "total_time_in_millis": 4303 }, "warmer": { "current": 0, "total": 9, "total_time_in_millis": 0 }, "query_cache": { "memory_size_in_bytes": 0, "total_count": 0, "hit_count": 0, "miss_count": 0, "cache_size": 0, "cache_count": 0, "evictions": 0 }, "fielddata": { "memory_size_in_bytes": 1456, "evictions": 0 }, "completion": { "size_in_bytes": 0 }, "segments": { "count": 9, "memory_in_bytes": 92804, "terms_memory_in_bytes": 73152, "stored_fields_memory_in_bytes": 4584, "term_vectors_memory_in_bytes": 0, "norms_memory_in_bytes": 10304, "points_memory_in_bytes": 0, "doc_values_memory_in_bytes": 4764, "index_writer_memory_in_bytes": 0, "version_map_memory_in_bytes": 0, "fixed_bit_set_memory_in_bytes": 0, "max_unsafe_auto_id_timestamp": -1, "file_sizes": {} }, "translog": { "operations": 0, "size_in_bytes": 165, "uncommitted_operations": 0, "uncommitted_size_in_bytes": 165, "earliest_last_modified_age": 24819785 }, "request_cache": { "memory_size_in_bytes": 348918, "evictions": 0, "hit_count": 174, "miss_count": 114 }, "recovery": { "current_as_source": 0, "current_as_target": 0, "throttle_time_in_millis": 0 } } } } }
二、数据操作类
数据在索引下称之为文档，以下也称之为文档
1、查询某个索引下的所有文档数据（GET /索引/_search）
localhost:9200/my_index/_search?pretty
2、查询某个索引下的某个文档ID对应的数据（GET /索引/_doc/文档ID/ ）
http://10.19.214.13:9200/索引/_doc/文档ID
3、修改指定索引下的某个文档（POST 根据文档ID找到对应文档进行修改）
http://10.19.214.13:9200/索引/_doc/文档ID/_update
Postman 调用接口更改数据
通过 http://10.19.214.13:9200/data_iotrm_event_event_acs%240x00030403_2024-10-29/_doc/oxcqTJMBXFMQjG9sdTdP/ 接口 查看该文档对应的数据
4、删除指定索引下的某个文档（DELETE /索引/_doc/文档ID）
http://10.19.214.13:9200/data_iotrm_event_event_acs%240x00030403_2024-10-29/_doc/SBcoTJMBXFMQjG9sdTZM/
再次根据这个文档ID 查看是否已经被删除
5、某个索引下新增一个文档（POST/索引/_doc/docID）
http://10.19.214.13:9200/data_iotrm_event_event_acs%240x00030403_2024-10-29/_doc/1 在索引 data_iotrm_event_event_acs$0x00030403_2024-10-29 下创建一个ID为1的文档数据
查看新增的数据
6、删除指定索引下的所有文档（POST /索引/_delete_by_query?pretty）当索引为* 表示删除所有索引下的所有文档数据
request body
{
"query": {
"match_all": {}
}
}
示例
elastic head 通过谷歌浏览器已经连接上es，可以看到目标索引下的信息
可以看到索引“iotrm_event_event_acs$0x00030403_2024-10-29” 下有36700个文档
当下通过API将删除该索引下的所有数据
打开 Postman 输入 http://10.19.214.13:9200/iotrm_event_event_acs%240x00030403_2024-10-29/_delete_by_query?pretty （注意：iotrm_event_event_acs$240x00030403_2024-10-29 索引ID，由于其中含有$，需要将这个字符变成%24 ）
request body
{
"query": {
"match_all": {}
}
}
由上图可知删除了 36700 条数据
刷新 elastichead 可以看到该索引下的数据
8、统计文档总数（GET _cat/indices）
curl -u elastic:elasticsearch_422 http://10.19.223.119:9200/_cat/indices |awk 'BEGIN{total=0}{total+=$7}END{print total}'
三、快照仓库操作类
1、仓库操作类
1）查看当前所有的仓库（GET _snapshot）
http://10.19.214.13:9200/_snapshot
2）注册仓库（PUT _snapshot）
{ "type": "fs", "settings": { "location": "/opt/es/backup/iotrm" } }
如果location 的地址在 es 的配置文件 elasticsearch.yml 中没有配置，那么会报下面这个错误
[iotrm] location [/opt/es/backup/iotrm] doesn't match any of the locations specified by path.repo
配置
- elasticsearch.yml 中仓库配置如下：
path.repo: /opt/xx/web/xx/elasticsearch.1/data/backup,/opt/es/backup/iotrm
多个仓库地址用逗号隔开
- 每个仓库地址必须和elasticsearch 启动用户是同一个，如es 启动账号是 es ，分组也是 es，则 这里 /opt/es/backup/iotrm 需要属于es，可以通过命令 chown -R es:es /opt/es/backup 设置
- 重启es服务
如果不将仓库地址设置成 es 启动用户一致，则注册仓库会报如下错误
注册
注册成功的返回信息如下：
3）删除已经注册的快照仓库（DELETE /_snapshot/仓库名称）
http://10.19.214.3:9200/_snapshot/all/
4）审查快照仓库并删除未被快照引用的过时数据（POST /_snapshot/仓库名称/_cleanup）
5）手动校验快照仓库是否可用（POST _snapshot/仓库名称/_verify）
2、快照操作类
1）查看某个仓库下所有快照（GET _snapshot/仓库名称/*）
http://10.19.223.119:9200/_snapshot/iotrm/*
2）在某个仓库下创建快照（PUT _snapshot/仓库名/快照名称?wait_for_completion=true）
http://10.19.223.119:9200/_snapshot/iotrm/%3Ciotrm-%7Bnow%7ByyyyMMddHHmmss%7D%7D%3E?wait_for_completion=true 快照名称可以配置时间格式，%3Ciotrm-%7Bnow%7ByyyyMMddHHmmss%7D%7D%3E 实际是：<iotrm-{now{yyyyMMddHHmmss}}>
请求body
{ "include_global_state": false, "indices":["iotrm*"], "metadata": { "taken_by": "wangfang5", "taken_because": "iotrm,backup test" } }
表示将 iotrm 开头的所有索引进行备份
返回内容
"snapshot": { "snapshot": "iotrm-20241203072538", "uuid": "idfOxhbCR961R6o3IiKpKQ", "version_id": 7100299, "version": "7.10.2", "indices": [ "iotrm_xx_2024-09-12", "iotrm_xx", "iotrm_yy", "iotrm_xx$0x00070101_2024-11-30", "iotrm_yy_2024-09-12" ], "data_streams": [], "include_global_state": false, "metadata": { "taken_by": "wangfang5", "taken_because": "iotrm,backup test" }, "state": "SUCCESS", "start_time": "2024-12-03T07:25:38.909Z", "start_time_in_millis": 1733210738909, "end_time": "2024-12-03T07:29:24.148Z", "end_time_in_millis": 1733210964148, "duration_in_millis": 225239, "failures": [], "shards": { "total": 5, "failed": 0, "successful": 5 } } }
3）还原某个仓库下的快照（POST _snapshot/仓库名称/快照名称/_restore?wait_for_completion=true）
http://10.19.214.13:9200/_snapshot/iotrm/iotrm-20241203072538/_restore?wait_for_completion=true
响应内容
{ "snapshot": { "snapshot": "iotrm-20241203072538", "indices": [
"iotrm_xx_2024-09-12",
"iotrm_xx",
"iotrm_yy",
"iotrm_xx$0x00070101_2024-11-30",
"iotrm_yy_2024-09-12"
], "shards": { "total": 5, "failed": 0, "successful": 5} } }
4) 从某个仓库的某个快照进行还原，但是指定还原的索引（POST _snapshot/仓库名称/快照名称/_restore?wait_for_completion=true）
http://10.19.214.13:9200/_snapshot/total/all-20241203124406/_restore?wait_for_completion=true
请求body
{ "indices": "test_event_illuminancetelemeter" }
响应body
{ "snapshot": { "snapshot": "all-20241203124406", "indices": [ "test_event_illuminancetelemeter" ], "shards": { "total": 3, "failed": 0, "successful": 3 } } }
5）在某个仓库下删除快照（DELETE /_snapshot/仓库名称/快照名称）
http://10.19.223.119:9200/_snapshot/es_data_repository/es_data_repository-20241128000000
四、节点操作类
1、查询所有节点的索引搜索信息（GET /_nodes/stats/indices/search）
2、查询节点资源占用情况（GET /_cat/nodes）
http://10.19.223.119:9200/_cat/nodes?format=json
也可以使用参数 v&format 控制输出格式
3、查看版本信息（GET /）
http://10.19.223.119:9200/
还可以通过 elasticsearch 工具查询：elasticsearch --version
五、集群
1、查看集群健康信息（GET /_cluster/health）
http://10.19.223.119:9200/_cluster/health
2、查看某个索引在集群内的分片健康状态（GET _cluster/health/索引名称?level=shards）
http://10.19.214.18:9200/_cluster/health/iotrm_event_event_acs%240x00030219_2024-09-12?level=shards
{ "cluster_name": "hik-ga-es", "status": "yellow", "timed_out": false, "number_of_nodes": 1, "number_of_data_nodes": 1, "active_primary_shards": 3, "active_shards": 3, "relocating_shards": 0, "initializing_shards": 0, "unassigned_shards": 3, "delayed_unassigned_shards": 0, "number_of_pending_tasks": 0, "number_of_in_flight_fetch": 0, "task_max_waiting_in_queue_millis": 0, "active_shards_percent_as_number": 54.51327433628319, "indices": { "iotrm_event_event_acs$0x00030219_2024-09-12": { "status": "yellow", "number_of_shards": 3, #3个主分片 "number_of_replicas": 1, #1个副本，即每个主片都有一个副本 "active_primary_shards": 3, "active_shards": 3, "relocating_shards": 0, "initializing_shards": 0, "unassigned_shards": 3, #3个分片未分配，这是因为这是单es节点，而该索引创建的时候指明了需要1个副本，因此这里3表示未分配3个副本分片 "shards": { "0": { "status": "yellow", "primary_active": true, "active_shards": 1, "relocating_shards": 0, "initializing_shards": 0, "unassigned_shards": 1 }, "1": { "status": "yellow", "primary_active": true, "active_shards": 1, "relocating_shards": 0, "initializing_shards": 0, "unassigned_shards": 1 }, "2": { "status": "yellow", "primary_active": true, "active_shards": 1, "relocating_shards": 0, "initializing_shards": 0, "unassigned_shards": 1 } } } } }
