[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-08-28。"],[[["\u003cp\u003eApigee hybrid's backup and restore feature allows for creating backups of hybrid data and restoring it to previous states in case of disasters, with backup availability and retention dependent on the user-provided infrastructure.\u003c/p\u003e\n"],["\u003cp\u003eWhile most Apigee hybrid components are stateless and do not require backups, Cassandra data backups are crucial for disaster recovery and should be enabled because it is not enabled by default.\u003c/p\u003e\n"],["\u003cp\u003eCassandra backups create consistent snapshots of the data, including schema and metadata, and are performed according to a schedule set in the \u003ccode\u003eoverrides.yaml\u003c/code\u003e file via a Kubernetes job that archives and sends data to either Cloud Storage or a remote server.\u003c/p\u003e\n"],["\u003cp\u003eThe backup process captures the Cassandra schema, partition token information, and a data snapshot, but only includes data present at the time of the backup.\u003c/p\u003e\n"],["\u003cp\u003eBackup data is either encrypted by default in Cloud Storage, or encrypted during transfer to a remote server, but further server encryption must be provided by the user.\u003c/p\u003e\n"]]],[],null,["# Cassandra backup overview\n\n| You are currently viewing version 1.7 of the Apigee hybrid documentation. **This version is end of life.** You should upgrade to a newer version. For more information, see [Supported versions](/apigee/docs/hybrid/supported-platforms#supported-versions).\n\nApigee hybrid backup and restore feature lets you create backups of the hybrid data\nand, in case of disaster scenarios, restore the data to previous working snapshots. Backup\navailability and retention is based on the backup infrastructure provided by you.\n\nA typical installation of Apigee hybrid consists of the following components:\n\n- MART (admin service)\n- Controller and Watcher (manage Kubernetes objects)\n- Istio (manages Ingress)\n- Runtime, Sync, and UDCA (one per environment)\n- Telemetry (monitoring and logging)\n- Cert manager (manages certificates)\n- Datastores (Cassandra and Redis databases)\n\nAll the components except for Cassandra are stateless and do not persist any data.\nBackup and restoration is not necessary for those components. During recovery, reinstallation of those\ncomponents using the existing overrides is sufficient.\n\nWhy take backups of Cassandra?\n------------------------------\n\n\nBackups are an important measure of protection against disaster scenarios. Each backup acts as a\nconsistent snapshot of the Cassandra data existing at the time the backup is\ncreated. In addition to Cassandra data, this snapshot includes schema and metadata within the Cassandra\ncluster. In the event of a disaster, backups enable you to restore your hybrid instance to a\npreviously operational state. Depending on the size of the hybrid instance, a single backup set may contain\none or more backup files.\n\nWhat you need to know about Cassandra backups?\n----------------------------------------------\n\nCassandra is a replicated database that is configured to have at least three copies of your data\nin each region or data center. Cassandra uses streaming replication and read repairs to maintain\nthe data replicas in each region or data center at any given point.\n\nIn hybrid, Cassandra backups are **not** enabled by default. It's a good practice to\nenable Cassandra backups in the event your data is lost to a catastrophic failure. Cassandra\nbackups are intended for use in cases of disaster recovery and not for restoring data loss caused\nby accidental deletion.\n\nBackups are created according to the schedule set in your `overrides.yaml` file. Once\na backup schedule is applied to your Hybrid cluster, a Kubernetes backup job is executed according to the schedule.\nThe job triggers a backup script on each Cassandra node in your hybrid cluster that collects all the data on the\nnode, creates an archive file of the data, and sends the archive to Cloud Storage or a directory on a\nremote server.\n| **Note:**\n|\n| - Take a backup of the overrides.yaml files(s).\n| - Backup of Kubernetes entities like Secrets, Certificates, and ConfigMaps are out of scope of this document. Please consult your Kubernetes vendor for the backup procedure of such Kubernetes entities.\n\nWhat is backed up?\n------------------\n\n\nThe hybrid scheduled backup is a complete backup of the persisted runtime data\nstored in Apigee's Cassandra at the time of backup. Any data modifications after the backup\ntime will not be available in the backup. The scheduled\nbackup consist of the following entities:\n\n- Cassandra schema, including the user schema (Apigee keyspace definitions).\n- Cassandra partition token information per Cassandra node in a cluster.\n- A snapshot of the Cassandra data.\n\nWhere is backup data stored?\n----------------------------\n\nThe location of the backup data depends on your backup method. Apigee hybrid supports the following\nmethods for taking backups:\n\n- **Backup in Cloud Storage** : Backup is stored in the configured Cloud Storage\n buckets in your Google Cloud Project.\n- **Backup in a remote server**: Backup is stored in a directory on a remote server specified by you.\n\nHow the data is secured?\n------------------------\n\nIf you are using Cloud Storage for backup, the backup data is encrypted by default.\nIn case of backups not on Cloud Storage, backup data is encrypted during the transfer to the remote\nserver. But after the transfer, you must ensure that the backup data is encrypted in the remote server.\n\nHow to take backups?\n--------------------\n\nYou must schedule the backups as `cron` jobs. The cronjob reads the configuration\nfrom an `overrides.yaml` file configured by you. Apigee recommends you to make a\ncopy of the `overrides.yaml` file, so that you can reuse it during the recovery process.\n\nThe following sections describe in detail how to schedule backups in Cloud Storage and\nin a remote server.\n\n- [Scheduling backups in Cloud Storage](/apigee/docs/hybrid/v1.7/schedule-cassandra-backup-gcs)\n- [Scheduling backups in a remote server](/apigee/docs/hybrid/v1.7/schedule-cassandra-backup-non-gcs)"]]
