elasticsearch - 在ElasticSearch中扫描和滚动查询

Question

我正在使用ES 1.5版本，我使用了滚动查询id，我可以正常工作并返回滚动id

GET /ecommerce_parts/_search?search_type=scan&scroll=3m

{
"query": { "match_all": {}},
"size": 1000
}

{
"scrollid": "c2Nhbjs1OzE4Okk4ckVkSld0UXdDU212UU1kNWZBU1E7MTc6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxNjpJOHJFZEpXdFF3Q1NtdlFNZDVmQVNROzIwOkk4ckVkSld0UXdDU212UU1kNWZBU1E7MTk6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxO3RvdGFsX2hpdHM6MTg0NjEwOw==",
"took": 1,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 184610,
"max_score": 0,
"hits": []
}
}

现在，当我传递滚动ID来检索文档集时，会抛出错误

GET /_search/scroll?scroll=1m c2Nhbjs1OzE4Okk4ckVkSld0UXdDU212UU1kNWZBU1E7MTc6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxNjpJOHJFZEpXdFF3Q1NtdlFNZDVmQVNROzIwOkk4ckVkSld0UXdDU212UU1kNWZBU1E7MTk6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxO3RvdGFsX2hpdHM6MTg0NjEwOw==

{
"error": "ElasticsearchIllegalArgumentException[Malformed scrollId []]",
"status": 400
}

GET /_search/scroll?scroll=3mc2Nhbjs1OzIzOkk4ckVkSld0UXdDU212UU1kNWZBU1E7MjE6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsyNTpJOHJFZEpXdFF3Q1NtdlFNZDVmQVNROzI0Okk4ckVkSld0UXdDU212UU1kNWZBU1E7MjI6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxO3RvdGFsX2hpdHM6MTg0NjEwOw==

以上两个查询都给我一个错误，如何基于滚动ID检索文档，如果输入错误，请提出一个查询

Answer 1

对于后续请求，您应该像这样在JSON负载中发送滚动ID:

POST  /_search/scroll 
{
    "scroll" : "1m", 
    "scroll_id" : "c2Nhbjs1OzE4Okk4ckVkSld0UXdDU212UU1kNWZBU1E7MTc6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxNjpJOHJFZEpXdFF3Q1NtdlFNZDVmQVNROzIwOkk4ckVkSld0UXdDU212UU1kNWZBU1E7MTk6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxO3RvdGFsX2hpdHM6MTg0NjEwOw==" 
}

在早期版本的ES中，您也可以这样做:

POST /_search/scroll?scroll=1m&scroll_id=c2Nhbjs1OzE4Okk4ckVkSld0UXdDU212UU1kNWZBU1E7MTc6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxNjpJOHJFZEpXdFF3Q1NtdlFNZDVmQVNROzIwOkk4ckVkSld0UXdDU212UU1kNWZBU1E7MTk6SThyRWRKV3RRd0NTbXZRTWQ1ZkFTUTsxO3RvdGFsX2hpdHM6MTg0NjEwOw==