ElasticSearch Backup on Windows and Restore on Linux

Question

I'm trying to backup an index in ElasticSearch 6.2.2 on Windows and restore it on ElasticSearch 6.2.3 on linux. I'm taking following steps but I never see the snapshots on the linux machine (based on https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-snapshots.html):

Register a snapshot repository on Windows

PUT /_snapshot/my_backup
{
   "type": "fs",
   "settings": {
      "location": "C:\\EsBackup",
      "compress": true
  }
}

Create a snapshot on Windows

PUT /_snapshot/my_backup/bcp?wait_for_completion=true
{
"indices":"myindex"
}

Check that snapshot is created

GET /_snapshot/my_backup/bcp

It shows success

{
  "snapshots": [
    {
      "snapshot": "bcp",
      "uuid": "xGLvw4JnRqadcyg4fxH1HA",
      "version_id": 6020299,
      "version": "6.2.2",
      "indices": [
        "bcp"
      ],
      "include_global_state": true,
      "state": "SUCCESS",
      "start_time": "2018-05-10T16:48:22.970Z",
      "start_time_in_millis": 1525970902970,
      "end_time": "2018-05-10T16:48:36.816Z",
      "end_time_in_millis": 1525970916816,
      "duration_in_millis": 13846,
      "failures": [],
      "shards": {
        "total": 3,
        "failed": 0,
        "successful": 3
      }
    }
  ]
}

I copy the files to linux and check that size and number of files is the same. (It's around 200 files with size of 500MB). I copy everything to a folder ~/elasticsearch-6.2.3/backup

Initialize the repository

curl -X PUT "localhost:9200/_snapshot/my_backup" -H 'Content-Type: application/json' -d'{"type": "fs","settings": {"location": "~/elasticsearch-6.2.3/backup","compress": true}}'

And got acknowledgement: {"acknowledged":true}

So I check which snapshots are available

curl -X GET "localhost:9200/_snapshot/my_backup/_status"

But the list is empty {"snapshots":[]}

And restore

curl -X POST "localhost:9200/_snapshot/my_backup/bcp/_restore?pretty"

returns an error

{
  "error" : {
    "root_cause" : [
      {
        "type" : "snapshot_restore_exception",
        "reason" : "[my_backup:bcp] snapshot does not exist"
      }
    ],
    "type" : "snapshot_restore_exception",
    "reason" : "[my_backup:bcp] snapshot does not exist"
  },
  "status" : 500
}

What step am I missing? I tried to _verify the repository and it's valid. Version 6.2.2 and 6.2.3 should be compatible.

George Lam George Lam · Accepted Answer · 2020-05-05T01:15:16

1

votes

Add the following in elasticsearch.yml file:

path.repo: /path/to/repo

ElasticSearch Backup on Windows and Restore on Linux

2 Answers