Repository Settings

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The gcs repository type supports a number of settings to customize how data is stored in Google Cloud Storage.

These can be specified when creating the repository. For example:

PUT _snapshot/my_gcs_repository
{
  "type": "gcs",
  "settings": {
    "bucket": "my_other_bucket",
    "base_path": "dev"
  }
}

The following settings are supported:

bucket
The name of the bucket to be used for snapshots. (Mandatory)
client
The name of the client to use to connect to Google Cloud Storage. Defaults to default.
base_path
Specifies the path within bucket to repository data. Defaults to the root of the bucket.
chunk_size
Big files can be broken down into multiple smaller blobs in the blob store during snapshotting. It is not recommended to change this value from its default unless there is an explicit reason for limiting the size of blobs in the repository. Setting a value lower than the default can result in an increased number of API calls to the Google Cloud Storage Service during snapshot create as well as restore operations compared to using the default value and thus make both operations slower as well as more costly. Specify the chunk size as a value and unit, for example: 10MB, 5KB, 500B. Defaults to the maximum size of a blob in the Google Cloud Storage Service which is 5TB.
compress
When set to true metadata files are stored in compressed format. This setting doesn’t affect index files that are already compressed by default. Defaults to false.
max_restore_bytes_per_sec
Throttles per node restore rate. Defaults to unlimited. Note that restores are also throttled through recovery settings.
max_snapshot_bytes_per_sec
Throttles per node snapshot rate. Defaults to 40mb per second.
readonly
Makes repository read-only. Defaults to false.
application_name
[6.3.0] Deprecated in 6.3.0. This setting is now defined in the client settings. Name used by the client when it uses the Google Cloud Storage service.

Recommended Bucket Permission

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The service account used to access the bucket must have the "Writer" access to the bucket:

  1. Connect to the Google Cloud Platform Console.
  2. Select your project.
  3. Go to the Storage Browser.
  4. Select the bucket and "Edit bucket permission".
  5. The service account must be configured as a "User" with "Writer" access.