How To Backup And Restore ElasticSearch

Cluster using Snapshot

(in Kibana)



Summery

  • Config ElasticSearch
  • Installing NFS
  • Create Repository
  • Create Policy
  • Take a Snapshot
  • Restore Snapshot





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      Config ElasticSearch

   There are 3 Nodes of ElasticSearch

   192.168.195.136

         192.168.195.137

              192.168.195.138

    : For each node  

   Create directory for the storing location of the snapshot

  

/   cd
   mkdir /BackupES
   chown -R elasticsearch:elasticsearch /BackupES

  

  Note (important) 

                   The directory must be shared between servers, You can use the NFS method



Installing NFS

 :IP

NFS Server : 192.168.195.136

NFS Client : 192.168.195.137

NFS Client : 192.168.195.138

 Configure the Firewall (For each node ) 

yum -y install firewalld

Then 

systemctl start firewalld.service
systemctl enable firewalld.service
firewall-cmd --permanent --zone=public --add-service=ssh
firewall-cmd --permanent --zone=public --add-service=nfs
firewall-cmd --reload

 Installing NFS (For each node ) 

yum -y install nfs-utils

Then

systemctl enable nfs-server.service
systemctl start nfs-server.service

Create directory and change permission (For each node)

chown nfsnobody:nfsnobody /BackupES
chmod 755 /BackupES

 192.168.195.136

vi /etc/exports
BackupES            192.168.195.137(rw,sync,no_root_squash,no_subtree_check)/
BackupES            192.168.195.138(rw,sync,no_root_squash,no_subtree_check)/
exportfs -arv

             

192.1658.195.137

vi /etc/exports
/BackupES           192.168.195.136(rw,sync,no_root_squash,no_subtree_check)
exportfs -arv

192.1658.195.138

vi /etc/exports
/BackupES           192.168.195.136(rw,sync,no_root_squash,no_subtree_check)
exportfs -arv

192.1658.195.137 

mount 192.168.195.136:/BackupES  /BackupES

192.1658.195.138

mount 192.168.195.136:/ BackupES  /BackupES

Testing (On the client) 

df -h

 Then

       add path.repo in /etc/elasticsearch/elasticsearch.yml 

   Vi /etc/elasticsearch/elasticsearch.yml

Then

   systemctl restart elasticsearch


Kibana  

Create Repository


A repository is where your snapshots live. You must register a snapshot repository before       you can perform snapshot and restore operations.


     Menu > Stack Management    


Snapshot and Restore


Repositories > Select Register a repository



Choose repository name and select shared file system


Note : You can compress snapshot (2)

 

BackupES Repository  Created




Create Policy

Use a snapshot lifecycle policy to automate the creation and deletion of cluster snapshots

Taking automatic snapshots









Daily Backup Policy Created




Take a Snapshot

You Can take a Snapshot for Test






Restore Snapshot

 

Delete indices for test (DANGEROUS)

curl -XDELETE http://localhost:9200/mytest_index
curl -XDELETE http://localhost:9200/mytest_index2


Then Choose Snapshot



You can choose indices






The result of restoring the snapshot (success)