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ElasticSearch扫描和滚动获取更新帐户吗？

[英]Does ElasticSearch scan-and-scroll fetch account for updates?

原文 2016-05-28 15:20:57 1 1 elasticsearch

Imagine i'm doing scan-and-scroll to perform an index migration. 想象一下，我正在扫描并滚动以执行索引迁移。 If i update a document during such operation, will i eventually see new version of that document in the document stream, or would it be just skipped? 如果在此操作期间更新文档，我最终会在文档流中看到该文档的新版本，还是只是被跳过？

1 个解决方案

It will be skipped as a scan operasion is like a snapshot in time before the document was updated. 由于扫描操作就像更新文档之前的快照一样，它将被跳过。 So the next scan you do will get the updates. 因此，您进行的下一次扫描将获取更新。 Here is a quout from Elasticsearch docs: 这是Elasticsearch文档中的一句话：

The results that are returned from a scroll request reflect the state of the index at the time that the initial search request was made, like a snapshot in time. 从滚动请求返回的结果反映了发出初始搜索请求时的索引状态，如时间快照。 Subsequent changes to documents (index, update or delete) will only affect later search requests. 对文档的后续更改（索引，更新或删除）只会影响以后的搜索请求。

Hope it helps. 希望能帮助到你。

在Elasticsearch扫描和滚动中，是否可以控制批量大小和限制搜索中的文档数量？ - In Elasticsearch scan-and-scroll, is there a way to control both the batch size and limit the number of documents in the search?

在外部放置ElasticSearch集群的Docker中，扫描滚动无法使用 - scan-and-scroll doesn't work from Docker with a ElasticSearch cluster placed outside

ElasticSearch。滚动是否需要扫描？ - ElasticSearch. Does scroll require scan?

为什么此ElasticSearch扫描和滚动返回IndexMissingException - Why does this ElasticSearch scan and scroll returns IndexMissingException

了解Elasticsearch中的扫描和滚动 - Understanding Scan and Scroll in Elasticsearch

为什么这个 ElasticSearch 扫描和滚动总是返回相同的滚动 ID？ - Why does this ElasticSearch scan and scroll keep returning the same scroll id?

在ElasticSearch中扫描和滚动查询 - Scan And Scroll Query In ElasticSearch

扫描并滚动弹簧数据elasticsearch 3 - scan and scroll in spring data elasticsearch 3

在感觉上使用scan和scroll for elasticSearch - Using scan and scroll for elasticSearch on sense

使用扫描和滚动，Elasticsearch批量写入速度很慢 - Elasticsearch Bulk Write is slow using Scan and Scroll

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相关问题 在Elasticsearch扫描和滚动中，是否可以控制批量大小和限制搜索中的文档数量？ - In Elasticsearch scan-and-scroll, is there a way to control both the batch size and limit the number of documents in the search? 在外部放置ElasticSearch集群的Docker中，扫描滚动无法使用 - scan-and-scroll doesn't work from Docker with a ElasticSearch cluster placed outside ElasticSearch。滚动是否需要扫描？ - ElasticSearch. Does scroll require scan? 为什么此ElasticSearch扫描和滚动返回IndexMissingException - Why does this ElasticSearch scan and scroll returns IndexMissingException 了解Elasticsearch中的扫描和滚动 - Understanding Scan and Scroll in Elasticsearch 为什么这个 ElasticSearch 扫描和滚动总是返回相同的滚动 ID？ - Why does this ElasticSearch scan and scroll keep returning the same scroll id? 在ElasticSearch中扫描和滚动查询 - Scan And Scroll Query In ElasticSearch 扫描并滚动弹簧数据elasticsearch 3 - scan and scroll in spring data elasticsearch 3 在感觉上使用scan和scroll for elasticSearch - Using scan and scroll for elasticSearch on sense 使用扫描和滚动，Elasticsearch批量写入速度很慢 - Elasticsearch Bulk Write is slow using Scan and Scroll

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