ES删除数据时经常会超时，使用异步task方式删除，将任务存入后台执行。
执行后台删除 wait_for_completion=false
GET uint
/_delete_by_query
?wait_for_completion
=false
{
"size": 20,
"timeout": "1200s",
"query": {
"bool": {
"must": [
{
"range": {
"clock": {
"gte": 1546272000,
"lt": 1558281599
}
}
}
],
"filter": {
"script": {
"script": {
"source": "(doc['clock'].value.millis/1000+doc['ttl'].value)<1571500799"
}
}
}
}
}
}
--返回数据
{
"task": "LexxnjDDSzuHmgl_rk1M7g:166676765"
}
查询某个任务的执行情况（根据返回的taskid查询）
GET _tasks
/LexxnjDDSzuHmgl_rk1M7g
:166676765
{
"completed": false,
"task": {
"node": "LexxnjDDSzuHmgl_rk1M7g",
"id": 166676765,
"type": "transport",
"action": "indices:data/write/delete/byquery",
"status": {
"total": 473381022,
"updated": 0,
"created": 0,
"deleted": 53820,
"batches": 2692,
"version_conflicts": 0,
"noops": 0,
"retries": {
"bulk": 0,
"search": 0
},
"throttled_millis": 0,
"requests_per_second": -1,
"throttled_until_millis": 0
},
"description": "delete-by-query [uint]",
"start_time_in_millis": 1603181880309,
"running_time_in_nanos": 145234246089,
"cancellable": true,
"headers": {}
}
}
查询所有后台删除任务状态
GET _tasks
?detailed
=true&actions
=*/delete
/byquery
{
"nodes": {
"LexxnjDDSzuHmgl_rk1M7g": {
"name": "ES01Kibana",
"transport_address": "192.168.xx.xx:9300",
"host": "192.168.xx.xx",
"ip": "192.168.xx.xx:9300",
"roles": [],
"attributes": {
"ml.machine_memory": "8184184832",
"xpack.installed": "true",
"ml.max_open_jobs": "20",
"ml.enabled": "true"
},
"tasks": {
"LexxnjDDSzuHmgl_rk1M7g:165886152": {
"node": "LexxnjDDSzuHmgl_rk1M7g",
"id": 165886152,
"type": "transport",
"action": "indices:data/write/delete/byquery",
"status": {
"total": 220638482,
"updated": 0,
"created": 0,
"deleted": 1827240,
"batches": 91362,
"version_conflicts": 0,
"noops": 0,
"retries": {
"bulk": 0,
"search": 0
},
"throttled_millis": 0,
"requests_per_second": -1,
"throttled_until_millis": 0
},
"description": "delete-by-query [uint]",
"start_time_in_millis": 1603178535366,
"running_time_in_nanos": 3007636586529,
"cancellable": true,
"headers": {}
}
}
}
}
}
取消指定任务
POST _tasks
/LexxnjDDSzuHmgl_rk1M7g
:165886152/_cancel
