Configuring Backup Repository

Navigate to the elasticsearch-6.2.2\config directory and modify the elasticsearch.yml configuration file. Add the following line at the end to specify the backup storage path:

path.repo: ["D:/backup_storage/elastic_backup"]

Create the designated folder at the specified location if it doesn't exist.

Creating Snapshot Repository

Using Command Line

curl -XPUT "http://localhost:9200/_snapshot/es_repository" -H "Content-Type: application/json" -d "{\"type\": \"fs\",\"settings\":{\"location\":\"D:/backup_storage/elastic_backup/snapshot_data\",\"compress\": \"true\",\"max_snapshot_bytes_per_sec\":\"50mb\",\"max_restore_bytes_per_sec\":\"50mb\"}}"

Using Kibana Dev Tools

PUT _snapshot/es_repository
{
  "type": "fs",
  "settings": {
    "location": "D:/backup_storage/elastic_backup/snapshot_data",
    "compress": true,
    "max_snapshot_bytes_per_sec": "50mb",
    "max_restore_bytes_per_sec": "50mb"
  }
}

This creates a repository named "es_repository" with file system storage at the specified location.

Creating Snapshots

Command Line Method

curl -XPUT "http://localhost:9200/_snapshot/es_repository/daily_backup_001?wait_for_completion=true"

Kibana Dev Tools Method

PUT _snapshot/es_repository/daily_backup_001?wait_for_completion=true

Creates a snapshot named "daily_backup_001" in the es_repository repository.

Monitoring Snapshots

Command Line

curl -XGET "http://localhost:9200/_snapshot/es_repository/_all"

Kibana Dev Tools

GET _snapshot/es_repository/_all

Data Restoration Process

Backup Current Data

Before restoration, create a backup of the current ES data directory to prevent data loss.

Clear Existing Data

curl -XDELETE "http://localhost:9200/_all"

Expected response:

{"acknowledged": true}

Restore from Snapshot

curl -XPOST "http://localhost:9200/_snapshot/es_repository/daily_backup_001/_restore"

Successful restoration response:

{"accepted": true}

Snapshot Management

Deleting Snapshots

curl -XDELETE "http://localhost:9200/_snapshot/es_repository/daily_backup_001"

Automated Backup Scheduling

Backup Script Creation

Create es_backup.bat with the following content:

@echo off
for /f "tokens=2 delims==" %%I in ('wmic os get localdatetime /value') do set datetime=%%I
set current_year=%datetime:~0,4%
set current_month=%datetime:~4,2%
set current_day=%datetime:~6,2%
set backup_date=%current_year%-%current_month%-%current_day%

curl -XPUT "http://localhost:9200/_snapshot/es_repository/snapshot_%backup_date%?wait_for_completion=true"

Windows Task Schedluer Setup

Configure Windows Task Scheduler to execute the batch file at regular intervals, establishing automated Elasticsearch snapshot backups.