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.The previous article in this series, Elasticsearch from the Bottom Up, covered essential data structures within a single shard. In this article, we will look at t..

Primary shard allocationeditPreviously, primary shards were only assigned if a quorum of shard copies were found (configurable using index.recovery.initial_shards, now deprecated). In case where a primary had only a single replica, quorum was defined to be a single shard. This meant that any shard copy of an index with replication factor 1 could become primary, even it was a stale copy of the da..

Create, index, and delete requests are write operations, which must be successfully completed on the primary shard before they can be copied to any associated replica shards, as shown in Figure 9, “하나의 document를 생성, 색인 또는 삭제”.create, index, delete request는 쓰기 연산이다. Figure 9, “하나의 document를 생성, 색인 또는 삭제”에서 볼 수 있듯이, 관련된 replica shard에 복사하기 전에, primary shard에서 성공적으로 완료되어야 한다.Figure 9. 하나의 document를..