[[["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)：2025-09-03。"],[[["\u003cp\u003eAlloyDB Omni is a downloadable, portable database software package, offering a streamlined edition of AlloyDB for PostgreSQL that can be deployed in diverse environments like data centers, laptops, and cloud VMs.\u003c/p\u003e\n"],["\u003cp\u003eAlloyDB Omni is suitable for scenarios requiring a scalable PostgreSQL version outside the cloud, for offline database operation, low-latency needs by locating the database close to users, or a migration pathway away from legacy databases.\u003c/p\u003e\n"],["\u003cp\u003eAlloyDB Omni offers key features including a PostgreSQL-compatible server, AlloyDB AI integration for generative AI applications, index advisor for better query performance, and a columnar engine for faster performance on business intelligence workloads.\u003c/p\u003e\n"],["\u003cp\u003eAlloyDB Omni supports continuous backup and recovery, allowing the creation of a new database cluster from any point in time within a set retention period, as well as on-demand or scheduled full backups for data restoration.\u003c/p\u003e\n"],["\u003cp\u003eAlloyDB Omni allows for cross-data center replication through the asynchronous streaming of data from a primary database cluster to secondary ones, which can then be promoted to primary when needed for disaster recovery.\u003c/p\u003e\n"]]],[],null,["# AlloyDB Omni 15.5.5 overview\n\nSelect a documentation version: 15.5.5keyboard_arrow_down\n\n- [Current (16.8.0)](/alloydb/omni/current/docs/overview)\n- [16.8.0](/alloydb/omni/16.8.0/docs/overview)\n- [16.3.0](/alloydb/omni/16.3.0/docs/overview)\n- [15.12.0](/alloydb/omni/15.12.0/docs/overview)\n- [15.7.1](/alloydb/omni/15.7.1/docs/overview)\n- [15.7.0](/alloydb/omni/15.7.0/docs/overview)\n- [15.5.5](/alloydb/omni/15.5.5/docs/overview)\n- [15.5.4](/alloydb/omni/15.5.4/docs/overview)\n- [15.5.2](/alloydb/omni/15.5.2/docs/overview)\n\n\u003cbr /\u003e\n\nAlloyDB Omni is a downloadable database software package that lets you deploy a streamlined edition of [AlloyDB for PostgreSQL](/alloydb/docs/overview) in your own computing environment. The portability of AlloyDB Omni lets it run in a wide variety of environments, including the following:\n\n\u003cbr /\u003e\n\n- Data centers\n- Laptops\n- Cloud-based VM instances\n\nAlloyDB Omni is well-suited to the following scenarios:\n\n- You need a scalable and performant version of PostgreSQL, but you can't run a database in the cloud due to regulatory or data-sovereignty requirements.\n- You need a database that keeps running even when it is disconnected from the internet.\n- You want to physically locate your database as close as possible your users, in order to minimize latency.\n- You would like a way to migrate away from a legacy database, but without committing to a full cloud migration.\n\nAlloyDB Omni does not include AlloyDB features\nthat rely on operation within Google Cloud. If you want to upgrade your project\nto the fully managed scaling, security, and availability features of\nAlloyDB, you can migrate your AlloyDB Omni data\ninto an AlloyDB cluster just as you can with any other initial\ndata import.\n\nKey features\n------------\n\n- A PostgreSQL-compatible database server.\n- Support for [AlloyDB AI](https://cloud.google.com/alloydb/ai), an integrated set of capabilities built into AlloyDB, to help you build enterprise-grade generative AI applications using your operational data.\n- Integrations with the Google Cloud AI ecosystem including the [Vertex AI Model Garden](https://cloud.google.com/model-garden) and open source generative AI tools.\n- An [index advisor](/alloydb/docs/use-index-advisor) that analyzes frequently run queries and recommends new indexes for better query performance.\n- The AlloyDB\n [columnar engine](/alloydb/docs/columnar-engine/about),\n which keeps frequently queried data in an in-memory columnar format for\n faster performance on business intelligence, reporting, and hybrid\n transactional and analytical processing (HTAP) workloads.\n\n | **Note:** The columnar engine is unavailable on Arm architectures.\n- Other optimizations and enhancements over a stock PostgreSQL server,\n like automatic memory management and [adaptive autovacuum](/alloydb/docs/adaptive-autovacuum) of stale data.\n\nHow AlloyDB Omni works\n----------------------\n\nAlloyDB Omni can be installed either as a standalone server or as part of a Kubernetes environment.\n\nAlloyDB Omni runs in a Docker container that\nyou [install onto your own environment](/alloydb/omni/15.5.5/docs/install). We recommend running\nAlloyDB Omni on a Linux system with SSD storage and at least 8 GB of memory per CPU.\n\nThe AlloyDB Omni Kubernetes Operator is an extension\nto the Kubernetes API that lets you run AlloyDB Omni in most\nCNCF-compliant Kubernetes environments. For more information, see\n[Install AlloyDB Omni on Kubernetes](/alloydb/omni/15.5.5/docs/deploy-kubernetes).\n\nYour applications connect to and communicate with your\nAlloyDB Omni installation exactly as they would with an ordinary\nPostgreSQL database server. User access control relies on PostgreSQL standards,\nas well.\n\nYou can configure the behavior of AlloyDB Omni using the [same\ndatabase flags that are available to\nAlloyDB](/alloydb/docs/reference/database-flags).\n\nData backup and disaster recovery\n---------------------------------\n\nAlloyDB Omni features a continuous backup and recovery system that\nlets you create a new database cluster based on any point in time within an adjustable\nretention period. This lets you recover quickly from data-loss accidents.\n\nIn addition, AlloyDB Omni can create and store complete backups of\nyour database cluster's data, either on demand or on a regular schedule. At any time, you\ncan restore from a backup to an AlloyDB Omni database cluster that contains\nall the data from the original database cluster at the moment of the backup's creation.\n\nFor more information, see [Back up and restore AlloyDB Omni](/alloydb/omni/15.5.5/docs/backup-overview).\n\nAs a further method of disaster recovery, you can achieve cross data center replication by creating secondary database clusters in separate data centers. AlloyDB Omni\nasynchronously streams data from a designated primary database cluster to each of its\nsecondary clusters. Whenever needed, you can promote a secondary database cluster into a primary AlloyDB Omni database cluster.\n\nFor more information, see [About cross-data-center replication](/alloydb/omni/15.5.5/docs/cross-data-center-replication/about-cross-data-center-replication)\n\nDocumentation for the latest version of AlloyDB Omni\n----------------------------------------------------\n\nFor information about the latest version of AlloyDB Omni, refer to the [AlloyDB Omni documentation set](/alloydb/omni/docs).\n\nDocumentation for AlloyDB Omni version 15.5.2 and earlier\n---------------------------------------------------------\n\nFor information about the previous version of AlloyDB Omni, refer to the [Multi-container AlloyDB Omni documentation set](/alloydb/omni/15.5.2/docs/overview).\n\nWhat's next\n-----------\n\n- [Quickstart: Install AlloyDB Omni](/alloydb/omni/15.5.5/docs/quickstart)\n\n- [Set up AlloyDB Omni for production](/alloydb/omni/15.5.5/docs/configure-omni)\n\n- [Install the psql client tool](/alloydb/docs/connect-psql#install-psql)"]]
