不爲也 比不能也

Engineers can resist anything except giving their processes more resources: bigger, better, faster, more of cycles, cores, RAM, disks and interconnects! When these resources are not a bottleneck, this is wasteful but harmless. For processes like Elasticsearch that run on the JVM, the luring temptation is to turn the heap up; what harm could possibly come from having more heap? Alas, the story is..

The problem with the reindexing process described previously is that you need to update your application to use the new index name. Index aliases to the rescue!위에서 언급한 reindex 프로세스의 문제점은, 새로운 index 이름을 사용하기 위해, 응용프로그램을 업데이트해야 한다는 점이다. index alias가 해결책이다.An index alias is like a shortcut or symbolic link, which can point to one or more indices, and can be used in any API that expects an index nam..