Elasticsearch Repository

By Opster Team

Updated: Mar 10, 2024

| 1 min read

Overview

An Elasticsearch snapshot provides a backup mechanism that takes the current state and data in the cluster and saves it to a repository (read snapshot for more information). The backup process requires a repository to be created first. The repository needs to be registered using the _snapshot endpoint, and multiple repositories can be created per cluster. The following repository types are supported: 

Repository types

Repository typeConfiguration type
Shared file systemType: “fs”
S3Type : “s3”
HDFSType :“hdfs”
AzureType: “azure”
Google Cloud StorageType : “gcs”

Examples

To register an “fs” repository:

PUT _snapshot/my_repo_01
{
"type": "fs",
"settings": {
"location": "/mnt/my_repo_dir"
  }
}

Notes and good things to know

  • S3, HDFS, Azure and Google Cloud require a relevant plugin to be installed before it can be used for a snapshot.
  • The setting, path.repo: /mnt/my_repo_dir needs to be added to elasticsearch.yml on all the nodes if you are planning to use the repo type of file system. Otherwise, it will fail.
  • When using remote repositories, the network bandwidth and repository storage throughput should be high enough to complete the snapshot operations normally, otherwise you will end up with partial snapshots.

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Related log errors to this ES concept


Retrying broken resumable upload session for blob
Failed to delete blob in bucket
Can not access in container
Failed to verify repository
Update repository
Failed to create repository
Delete repository
Failed to change repository
Internal repository already registered this prevented the registration of
Non-internal repository already registered this repository will block the
Cannot read snapshot file
Failed to delete shard data for shard

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