Automated snapshots are only for cluster recovery. You can use them to restore your domain in the event of red cluster status or data loss. For more information, see Restoring snapshots below. OpenSearch Service stores automated snapshots in a preconfigured Amazon S3 bucket at no additional charge.
Manual snapshots are for cluster recovery or for moving data from one cluster to another. You have to initiate manual snapshots. These snapshots are stored in your own Amazon S3 bucket and standard S3 charges apply. If you have a snapshot from a self-managed OpenSearch cluster, you can use that snapshot to migrate to an OpenSearch Service domain. For more information, see Migrating to Amazon OpenSearch Service.
Opensearch Download Snapshot
DOWNLOAD 🔥 https://byltly.com/2yGaE2 🔥
For domains running OpenSearch or Elasticsearch 5.3 and later, OpenSearch Service takes hourly automated snapshots and retains up to 336 of them for 14 days. Hourly snapshots are less disruptive because of their incremental nature. They also provide a more recent recovery point in case of domain problems.
For domains running Elasticsearch 5.1 and earlier, OpenSearch Service takes daily automated snapshots during the hour you specify, retains up to 14 of them, and doesn't retain any snapshot data for more than 30 days.
If your cluster enters red status, all automated snapshots fail while the cluster status persists. If you don't correct the problem within two weeks, you can permanently lose the data in your cluster. For troubleshooting steps, see Red cluster status.
Create an IAM role to delegate permissions to OpenSearch Service. For instructions, see Creating an IAM role (console) in the IAM User Guide. The rest of this chapter refers to this role as TheSnapshotRole.
In order to register the snapshot repository, you need to be able to pass TheSnapshotRole to OpenSearch Service. You also need access to the es:ESHttpPut action. To grant both of these permissions, attach the following policy to the IAM role whose credentials are being used to sign the request:
You need to register a snapshot repository with OpenSearch Service before you can take manual index snapshots. This one-time operation requires that you sign your AWS request with credentials that are allowed to access TheSnapshotRole, as described in Prerequisites.
Fine-grained access control introduces an additional step when registering a repository. Even if you use HTTP basic authentication for all other purposes, you need to map the manage_snapshots role to your IAM role that has iam:PassRole permissions to pass TheSnapshotRole.
The following Snapshots tab demonstrates how to register a snapshot directory. For options specific to encrypting a manual snapshot and registering a snapshot after migrating to a new domain, see the relevant tabs.
To register a snapshot repository, send a PUT request to the OpenSearch Service domain endpoint. You can use curl, the sample Python client, Postman, or some other method to send a signed request to register the snapshot repository. Note that you can't use a PUT request in the OpenSearch Dashboards console to register the repository.
If your domain resides within a virtual private cloud (VPC), your computer must be connected to the VPC for the request to successfully register the snapshot repository. Accessing a VPC varies by network configuration, but likely involves connecting to a VPN or corporate network. To check that you can reach the OpenSearch Service domain, navigate to -vpc-domain.region.es.amazonaws.com in a web browser and verify that you receive the default JSON response.
To turn on SSE with S3-managed keys for the bucket you use as a snapshot repository, add "server_side_encryption": true to the "settings" block of the PUT request. For more information, see Protecting data using server-side encryption with Amazon S3-managed encryption keys in the Amazon Simple Storage Service User Guide.
Alternatively, you can use AWS KMS keys for server-side encryption on the S3 bucket that you use as a snapshot repository. If you use this approach, make sure to provide TheSnapshotRole permission to the AWS KMS key used to encrypt the S3 bucket. For more information, see Key policies in AWS KMS.
Registering a snapshot repository is a one-time operation. However, to migrate from one domain to another, you have to register the same snapshot repository on the old domain and the new domain. The repository name is arbitrary.
When registering the repository on the new domain, add "readonly": true to the "settings" block of the PUT request. This setting prevents you from accidentally overwriting data from the old domain. Only one domain should have write access to the repository.
If you're migrating data to a domain in a different AWS Region, (for example, from an old domain and bucket located in us-east-2 to a new domain in us-west-2), replace "region": "region" with "endpoint": "s3.amazonaws.com" in the PUT statement and retry the request.
The Python client is easier to automate than a simple HTTP request and has better reusability. If you choose to use this method to register a snapshot repository, save the following sample Python code as a Python file, such as register-repo.py. The client requires the AWS SDK for Python (Boto3), requests and requests-aws4auth packages. The client contains commented-out examples for other snapshot operations.
Snapshots are not instantaneous. They take time to complete and don't represent perfect point-in-time views of the cluster. While a snapshot is in progress, you can still index documents and make other requests to the cluster, but new documents and updates to existing documents generally aren't included in the snapshot. The snapshot includes primary shards as they existed when OpenSearch initiated the snapshot. Depending on the size of your snapshot thread pool, different shards might be included in the snapshot at slightly different times. For snapshot best practices, see Improve snapshot performance.
OpenSearch snapshots are incremental, meaning they only store data that changed since the last successful snapshot. This incremental nature means the difference in disk usage between frequent and infrequent snapshots is often minimal. In other words, taking hourly snapshots for a week (for a total of 168 snapshots) might not use much more disk space than taking a single snapshot at the end of the week. Also, the more frequently you take snapshots, the less time they take to complete. For example, daily snapshots can take 20-30 minutes to complete, whereas hourly snapshots might complete within a few minutes. Some OpenSearch users take snapshots as often as every half hour.
If your access policies specify users or roles, you must sign your snapshot requests. For curl, you can use the --aws-sigv4 option with version 7.75.0 or later. You can also use the commented-out examples in the sample Python client to make signed HTTP requests to the same endpoints that the curl commands use.
The time required to take a snapshot increases with the size of the OpenSearch Service domain. Long-running snapshot operations sometimes encounter the following error: 504 GATEWAY_TIMEOUT. You can typically ignore these errors and wait for the operation to complete successfully. Run the following command to verify the state of all snapshots of your domain:
If you use index aliases, you should either cease write requests to an alias or switch the alias to another index prior to deleting its index. Halting write requests helps avoid the following scenario:
Identify the snapshot you want to restore. Ensure that all settings for this index, such as custom analyzer packages or allocation requirement settings, are compatible with the domain. To see all snapshot repositories, run the following command:
Most automated snapshots are stored in the cs-automated repository. If your domain encrypts data at rest, they're stored in the cs-automated-enc repository. If you don't see the manual snapshot repository you're looking for, make sure you registered it to the domain.
(Optional) Delete or rename one or more indexes in the OpenSearch Service domain if you have naming conflicts between indexes on the cluster and indexes in the snapshot. You can't restore a snapshot of your indexes to an OpenSearch cluster that already contains indexes with the same names.
Due to special permissions on the OpenSearch Dashboards and fine-grained access control indexes, attempts to restore all indexes might fail, especially if you try to restore from an automated snapshot. The following example restores just one index, my-index, from 2020-snapshot in the cs-automated snapshot repository:
You can restore a snapshot without deleting its data by using the rename_pattern and rename_replacement parameters. For more information on these parameters, see the Restore Snapshot API request fields and example request in the OpenSearch documentation.
If not all primary shards were available for the indexes involved, a snapshot might have a state of PARTIAL. This value indicates that data from at least one shard wasn't stored successfully. You can still restore from a partial snapshot, but you might need to use older snapshots to restore any missing indexes.
You can set up a Snapshot Management (SM) policy in OpenSearch Dashboards to automate periodic snapshot creation and deletion. SM can snapshot of a group of indices, whereas Index State Management can only take one snapshot per index. To use SM in OpenSearch Service, you need to register your own Amazon S3 repository. For instructions to register your repository, see Registering a manual snapshot repository.
Prior to SM, OpenSearch Service offered a free, automated snapshot feature that's still turned on by default. This feature sends snapshots into the service-maintained cs-* repository. To deactivate the feature, reach out to AWS Support.
SM doesn't currently support snapshot creation on multiple index types. For example, if you try to create snapshot on multiple indices with * and some indices are in the warm tier, the snapshot creation will fail. If you need your snapshot to contain multiple index types, use the ISM snapshot action until SM supports this option. 152ee80cbc
garmin gps usa maps free download