Upgrade Elk to the latest version

Online elk Run for some time, but a variety of small problems constantly, logstash often hang off, kibana query slow, and so on, now decided to upgrade Elk components to the latest version, see the effect.

An upgrade Elasticsearch

Elasticsearch The original version is 1.7.1,elasticsearch the latest version is 2.3.3

The first thing to look at before upgrading is official documentation on upgrade considerations

1. View Breaking Changes Instructions

The general principle of Elasticsearch upgrade is:

Large version upgrade requires restart of entire Elasticsearch cluster

Minor version upgrades can upgrade one cluster node at a time

Since we have a larger version of this upgrade, we need to learn more about version changes

Version 2.3 Material changes

REST API

Reference Documentation:

Https://www.elastic.co/guide/en/elasticsearch/reference/2.3/setup-upgrade.html

Https://www.elastic.co/guide/en/elasticsearch/reference/2.3/breaking-changes.html

This article is from the Linux SA John blog, so be sure to keep this source http://john88wang.blog.51cto.com/2165294/1791525

Upgrade Elk to the latest version