Pending cluster tasks · Elasticsearch 5.4 中文文檔

# Pending cluster tasks 原文鏈接 : [https://www.elastic.co/guide/en/elasticsearch/reference/5.0/cluster-pending.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.0/cluster-pending.html) 譯文鏈接 : [http://www.apache.wiki/display/Elasticsearch/Pending+cluster+tasks](http://www.apache.wiki/display/Elasticsearch/Pending+cluster+tasks) 貢獻者 : [那伊抹微笑](/display/~wangyangting) **pending cluster tasks**（添加集群任務）**API** 返回一個集群級別中還沒有被執行的操作的列表（例如，創建索引，更新映射，分配或故障的分片）。注意 : 該 **API** 返回一個正在添加到更新集群狀態的任務列表。這些是通過 [Task Management API](https://www.elastic.co/guide/en/elasticsearch/reference/5.0/tasks.html "Task Management API") 從任務報告的。它包括了由用戶發起的周期性任務和定期任務，例如節點狀態，搜索查詢，或者創建索引請求。然后，如果用戶初始化任務（像創建索引命令）會造成集群狀態更新，該任務的活動可能由 **task api** 和 **pending cluster tasks API** 來報告。 ``` $ curl -XGET 'http://localhost:9200/_cluster/pending_tasks' ``` 通常這個操作會返回一個空的列表，因為集群中的變化通常是很快的。然而如果有任務在隊列中，該輸出可能如下 :? ``` { "tasks": [ { "insert_order": 101, "priority": "URGENT", "source": "create-index [foo_9], cause [api]", "time_in_queue_millis": 86, "time_in_queue": "86ms" }, { "insert_order": 46, "priority": "HIGH", "source": "shard-started ([foo_2][1], node[tMTocMvQQgGCkj7QDHl3OA], [P], s[INITIALIZING]), reason [after recovery from shard_store]", "time_in_queue_millis": 842, "time_in_queue": "842ms" }, { "insert_order": 45, "priority": "HIGH", "source": "shard-started ([foo_2][0], node[tMTocMvQQgGCkj7QDHl3OA], [P], s[INITIALIZING]), reason [after recovery from shard_store]", "time_in_queue_millis": 858, "time_in_queue": "858ms" } ] } ```