不爲也 比不能也

UPDATE: This article refers to our hosted Elasticsearch offering by an older name, Found. Please note that Found is now known as Elastic Cloud.이 게시물은 기존에 Found라는 이름으로 제공된 Elasticsearch 서비스에 관한 것이다. Found은 이제 Elasticsearch Cloud로 알려져 있다.As much as we love Elasticsearch, at Found we've seen customers crash their clusters in numerous ways. Mostly due to simple misunderstandings and usually the fixe..

Give memory to the filesystem cache Elasticsearch heavily relies on the filesystem cache in order to make search fast. In general, you should make sure that at least half the available memory goes to the filesystem cache so that Elasticsearch can keep hot regions of the index in physical memory.Elasticsearch는 search 속도를 빠르게 하기 위해, filesystem cache에 많이 의존한다. 일반적으로, Elasticsearch가 index 중 많이 사용하는 ..

Strict REST query string parameter parsingeditPrevious versions of Elasticsearch ignored unrecognized URL query string parameters. This means that extraneous parameters or parameters containing typographical errors would be silently accepted by Elasticsearch. This is dangerous from an end-user perspective because it means a submitted request will silently execute not as intended. This leniency h..

This section discusses the changes that you need to be aware of when migrating your application to Elasticsearch 2.3.여기에서는 application을 Elasticsearch 2.3 으로 migration할 경우 알아야 할 변경 사항에 대해 이야기한다.REST APIeditCORS support broken in 2.3.0 and 2.3.1editA change to the CORS implementation means that CORS support for pre-flight OPTIONS requests is broken in 2.3.0 and 2.3.1. This is fixed in 2.3.2.CORS 구..

This section discusses the changes that you need to be aware of when migrating your application to Elasticsearch 2.2.여기에서는 application을 Elasticsearch 2.2 로 migration할 경우 알아야 할 변경 사항에 대해 이야기한다.Geo Point TypeeditThe geo_point format has been changed to reduce index size and the time required to both index and query geo point data. To make these performance improvements possible both doc_values and..

Partial fieldseditPartial fields have been removed in favor of source filtering.source filtering를 위하여 partial field는 제거되었다.search_type=count deprecatededitThe count search type has been deprecated. All benefits from this search type can now be achieved by using the (default) query_then_fetch search type and setting size to 0.count search type은 deprecate되었다. 이 search type으로 얻을 수 있었던 것은 이제 (기본적으로)..

Scripting syntaxeditThe syntax for scripts has been made consistent across all APIs. The accepted format is as follows:script에 대한 문법은 모든 API에 대해 일관적으로 만들어졌다. 적절한 format은 아래와 같다.Inline/Dynamic scripts"script": { "inline": "doc['foo'].value + val", "lang": "groovy", "params": { "val": 3 } }실행할 inline script.script language option.매개변수.Indexed scripts"script": { "id": "my_script_id", "lang": "groov..

In Updating a Whole Document, we said that the way to update a document is to retrieve it, change it, and then reindex the whole document. This is true. However, using the update API, we can make partial updates like incrementing a counter in a single request.Updating a Whole Document에서, document를 업데이트하는 방식은 document를 가져와서 수정하고, 전체 document를 다시 색인 한다고 언급했다. 이것은 사실이다. 그러나 update API를 사용하면, 단일 req..