不爲也 比不能也

Elastic Cloud is on the tail end of eliminating a mix of memory issues that has caused problems for a lot of low-memory nodes, and in some rare cases even large nodes. Following the memory problems, we experienced connectivity issues on a handful of servers in eu-west-1 that affected any cluster with at least one node on these impacted servers.Elastic Cloud는 많은 memory가 작은 node와 일부 드문 경우에 큰 node에..

Java programmers have two choices when communicating with Elasticsearch: they can use either the REST API over HTTP, or the internal Java API used by Elasticsearch itself for node-to-node communication.Java programmer는 Elasticsearch와 통신 할 경우, 두 가지 중 하나를 선택을 할 수 있다. HTTP를 통한 REST API 또는 Elasticsearch 자체에서 node 간 통신을 위해 사용하는 내부 Java API를 사용할 수 있다.So, what's the difference between these two APIs? W..

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..

APT/YUM repository URL changeseditThe repository for apt and yum packages has changed from https://packages.elastic.co to https://artifacts.elastic.co/.apt와 yum package repository가 https://packages.elastic.co 에서 https://artifacts.elastic.co/로 변경되었다.Full details can be found in Installing Elasticsearch.자세한 사항은 Installing Elasticsearch에서 알 수 있다.Default logging using systemd (since Elasticsearch 2...

Cluster-health is at one end of the spectrum—a very high-level overview of everything in your cluster. The node-stats API is at the other end. It provides a bewildering array of statistics about each node in your cluster.cluster-health 는 cluster의 모든 것에 대한 매우 높은 수준의 개요 부분이다. node-stats API는 또 다른 부분이다. 이것은 cluster의 각 node에 대한 복잡한 통계의 배열을 제공한다.Node-stats provides so many stats that, until you are a..

You should always run the most recent version of the Java Virtual Machine (JVM), unless otherwise stated on the Elasticsearch website. Elasticsearch, and in particular Lucene, is a demanding piece of software. The unit and integration tests from Lucene often expose bugs in the JVM itself. These bugs range from mild annoyances to serious segfaults, so it is best to use the latest version of the J..