015-elasticsearch【五】-搜索模板，多搜索模板，
一、搜索模板
查看地址
二、多搜索模板
查看地址
三、搜索分片API
搜索分片api返回將執行搜索請求的索引和分片。這可以提供有用的反饋，用於解決問題或使用路由和分片首選項進行規劃優化。使用過濾別名時，過濾器將作為索引部分的一部分返回。
索引和類型參數可以是單個值，也可以逗號分隔。
類型參數已棄用【5.1.0】
示例：
GET /twitter/_search_shards
{ "nodes": ..., "indices" : { "twitter": { } }, "shards": [ [ {View Code"index": "twitter", "node": "JklnKbD7Tyqi9TP3_Q_tBg", "primary": true, "shard": 0, "state": "STARTED", "allocation_id": {"id":"0TvkCyF7TAmM1wHP4a42-A"}, "relocating_node": null } ], [ { "index": "twitter","node": "JklnKbD7Tyqi9TP3_Q_tBg", "primary": true, "shard": 1, "state": "STARTED", "allocation_id": {"id":"fMju3hd1QHWmWrIgFnI4Ww"}, "relocating_node": null } ], [ { "index": "twitter", "node": "JklnKbD7Tyqi9TP3_Q_tBg","primary": true, "shard": 2, "state": "STARTED", "allocation_id": {"id":"Nwl0wbMBTHCWjEEbGYGapg"}, "relocating_node": null } ], [ { "index": "twitter", "node": "JklnKbD7Tyqi9TP3_Q_tBg", "primary": true, "shard": 3, "state": "STARTED", "allocation_id": {"id":"bU_KLGJISbW0RejwnwDPKw"}, "relocating_node": null } ], [ { "index": "twitter", "node": "JklnKbD7Tyqi9TP3_Q_tBg", "primary": true, "shard": 4, "state": "STARTED", "allocation_id": {"id":"DMs7_giNSwmdqVukF7UydA"}, "relocating_node": null } ] ] }
指定相同的請求，這次使用路由值：
GET /twitter/_search_shards?routing=foo,baz
{ "nodes": ..., "indices" : { "twitter": { } }, "shards": [ [ { "index": "twitter", "node": "JklnKbD7Tyqi9TP3_Q_tBg", "primary": true, "shard": 0, "state": "STARTED", "allocation_id": {"id":"0TvkCyF7TAmM1wHP4a42-A"}, "relocating_node": null } ], [ { "index": "twitter", "node": "JklnKbD7Tyqi9TP3_Q_tBg", "primary": true, "shard": 1, "state": "STARTED", "allocation_id": {"id":"fMju3hd1QHWmWrIgFnI4Ww"}, "relocating_node": null } ] ] }View Code
這次搜索只會針對兩個分片執行，因為已經指定了路由值。
參數：
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A comma-separated list of routing values to take into account when determining which shards a request would be executed against. 在確定要執行的請求分片時要考慮的路由值的逗號分隔列表。 |
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Controls a 控制哪個分片副本在其上執行搜索請求的首選項。默認情況下，該操作在碎片副本之間隨機化。請參閱首選項文檔以獲取所有可接受值的列表。 |
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A boolean value whether to read the cluster state locally in order to determine where shards are allocated instead of using the Master node’s cluster state. 一個布爾值，是否在本地讀取群集狀態以確定分配分片的位置，而不是使用主節點的群集狀態。 |
四、建議功能
參看地址
五、多搜索API
查看地址
015-elasticsearch【五】-搜索模板，多搜索模板，