Elasticsearch supports several types of snapshot repositories, which can be used to store backups of Elasticsearch index data and cluster metadata. The different types of snapshot repositories supported by Elasticsearch are:
1. File System Repository: A file system repository stores snapshots on a shared file system that is accessible by all Elasticsearch nodes in the cluster. To create a file system repository, you need to specify the path to the file system in the repository configuration.
2. S3 Repository: An S3 repository stores snapshots on Amazon S3, which is a cloud-based storage service provided by Amazon Web Services (AWS). To create an S3 repository, you need to specify the AWS access key and secret key in the repository configuration.
3. Azure Repository: An Azure repository stores snapshots on Microsoft Azure, which is a cloud-based storage service provided by Microsoft. To create an Azure repository, you need to specify the Azure storage account name and access key in the repository configuration.
4. Google Cloud Storage Repository: A Google Cloud Storage repository stores snapshots on Google Cloud Storage, which is a cloud-based storage service provided by Google Cloud Platform (GCP). To create a Google Cloud Storage repository, you need to specify the GCP project ID and the JSON key file in the repository configuration.
5. Hadoop Distributed File System (HDFS) Repository: An HDFS repository stores snapshots on a Hadoop Distributed File System (HDFS), which is a distributed file system designed to store large volumes of data across clusters of computers. To create an HDFS repository, you need to specify the HDFS URI and the path to the repository in the repository configuration.
6. Shared File System Repository: A shared file system repository stores snapshots on a shared file system that is accessible by all Elasticsearch nodes in the cluster. This type of repository is similar to the file system repository, but it is designed for environments where a shared file system is not available. To create a shared file system repository, you need to specify the path to the shared file system in the repository configuration.
Overall, the different types of snapshot repositories supported by Elasticsearch provide users with flexibility and choice in storing and managing backups of Elasticsearch index data and cluster metadata. By using snapshot repositories, users can safeguard their data and ensure business continuity in case of disasters.