This instructions are very basic and intended for someone who is new to ElasticSearch.
There are far more capabilities in ElasticSearch such as asynchronously triggering and monitoring snapshot backup etc. Refer to ElasticSearch documentation for more details.
To backup and restore elasticsearch data follow these steps:
Source Server:
1. In
source server, ensure the path.repo is configured in the elasticsearch.yml
(found in elasticsearch-<version>\config folder)
Example: Add this line at the end
of elasticsearch.yml
path.repo: [
"C:\\ESBkup" ]
NOTE: This can be
a network path too.
2. Create
the repository
Example:
PUT _snapshot/mybackup
{
"type": "fs",
"settings": {
"location": "/ESBkup/mybackup"
}
}
NOTE: The path starts from the ESBkup
3. Create
the snapshot
PUT
_snapshot/mybackup/snapshot_1?wait_for_completion=true
4. Now
you can open and see the C:\ESBkup folder and notice all the indices are backed
up. You can copy the entire ESB folder to the target server.
Target Server:
1. In
target server, ensure the path.repo is configured in the elasticsearch.yml
as above. The path should be the same folder where you have copied the
snapshot files from source server.
2. Create
the repository as above.
3. Example:
PUT _snapshot/mybackup
{
"type": "fs",
"settings": {
"location": "mybackup"
}
}
NOTE: the location is the direct snapshot folder and its not starting from the
root folder (ESB).
4. Now
you can query the snapshot to find out what indices it has:
GET
_snapshot/mybackup/_all
5. To
restore backup
POST
/_snapshot/mybackup/snapshot_1/_restore?wait_for_completion=true
{
"indices": "indexA,indexB,indexC"
}
NOTE: you can use the indices to
selectively restore indices
