从5.2.2升级到6.4.2（yum安装VS yum更新）

Question

#Installing from the RPM repository
#Create a file called elasticsearch.repo in the /etc/yum.repos.d/ directory for RedHat based distributions, 

#DO UPGRADE
#In the terms of ordering, update first the master nodes, then data nodes, then load-balancing/client nodes.

#Disable Shard reallocation
curl -XPUT localhost:9200/_cluster/settings -d '{ "transient" : { "cluster.routing.allocation.enable" : "none" } }'

#Shutdown the instance:
curl -XPOST 'http://localhost:9200/_cluster/nodes/_local/_shutdown'

sudo systemctl stop elasticsearch
sudo yum update elasticsearch
sudo systemctl start elasticsearch

#Enable shard re-allocation:
curl -XPUT localhost:9200/_cluster/settings -d '{ "transient" : { "cluster.routing.allocation.enable" : "all" } }'

#Watch cluster go from yellow state to green with:
curl -X GET http://localhost:9200/_cat/health?v // monitors the overal cluster state
curl -X GET http://localhost:9200/_cat/nodes?v // verify that the new node joined the cluster
curl -X GET http://localhost:9200/_cat/shards?v // see shards being started, initialized and relocated

#Repeat for the next node.

Answer 1

答案是肯定的。百胜更新将升级ES的最新版本。

确保您有：

1）将/etc/yum.repos.d/elasticsearch.repo更新为最新的6.x版本

curl -X GET http://host_ip:9200/index_name/_settings?pretty\&human