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YDB（Yandex Database）22.2 Documentation
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Maintaining a cluster’s disk subsystem

 来源:Yandex 浏览 208 扫码 分享 2022-04-24 19:43:14
  • Overview
  • How to stay within the failure model
  • Disk load balancing
  • Methods to free up space on physical devices
  • Cluster extension
  • Adding storage groups
  • Safe restart and shutdown of nodes
  • Enabling/disabling SelfHeal
  • Enabling/disabling Scrubbing
  • Moving VDisks
  • Updating configurations via CMS
  • Updating configuration of the actor system
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  • Contents
  • Getting started
    • Overview
    • Creating a database
    • Authentication
    • YDB command line interface (CLI)
    • YQL query language
    • YDB SDK
    • Self-hosted deployment
      • Overview
      • Docker
      • Binary file
      • Minikube
    • Useful links
    • How to edit the documentation
      • Overview
      • Content creation guide
      • Structure of subject directories
      • Building documentation
      • How to participate in the development of documentation
      • Creating customized documentation
  • Concepts
    • Overview
    • Terms and definitions
    • Connecting to and authenticating with a database
    • Data model and schema
    • Serverless and Dedicated operation modes
    • Transactions
    • Secondary indexes
    • Time to Live (TTL)
    • Scan queries
    • Database limits
    • YDB cluster
      • Overview
      • General YDB schema
      • Disk subsystem of a cluster
  • Recommendations
    • Overview
    • Choosing a primary key for maximum performance
    • Secondary indexes
    • Paginated output
    • Loading large data volumes
    • Using timeouts
  • Manage databases
    • Overview
    • Backup and recovery
    • Diagnostics
      • Overview
      • System views
      • Monitoring
  • Cluster management
    • Overview
    • Kubernetes
      • Overview
      • Deploying in Yandex Managed Service for Kubernetes
      • Deploying in AWS Elastic Kubernetes Service
      • Use
    • Manual
      • Local deployment
      • Cluster configuration
      • Maintaining a cluster’s disk subsystem
        • Overview
        • How to stay within the failure model
        • Disk load balancing
        • Methods to free up space on physical devices
        • Cluster extension
        • Adding storage groups
        • Safe restart and shutdown of nodes
        • Enabling/disabling SelfHeal
        • Enabling/disabling Scrubbing
        • Moving VDisks
        • Updating configurations via CMS
        • Updating configuration of the actor system
    • Embedded UI
      • Overview
      • YDB Monitoring
      • Hive web-viewer
      • Connections overview
      • Logs
      • Charts
    • System views
  • Reference
    • YQL
      • Overview
      • Data types
        • Overview
        • Simple
        • Optional
        • Containers
        • Special
        • Type casting
        • Text representation of data types
        • JSON
      • Syntax
        • Overview
        • Lexical structure
        • Expressions
        • ACTION
        • ALTER TABLE
        • CREATE TABLE
        • DECLARE
        • DELETE
        • DISCARD
        • DROP TABLE
        • GROUP BY
        • FLATTEN
        • INSERT
        • INTO RESULT
        • JOIN
        • PRAGMA
        • REPLACE
        • SELECT
        • UPDATE
        • UPSERT
        • VALUES
        • WINDOW
        • Unsupported statements
      • Built-in functions
        • Overview
        • Basic
        • Aggregate
        • Window
        • For lists
        • For dictionaries
        • For structures
        • For types
        • For JSON
        • C++ libraries
          • Overview
          • Hyperscan
          • Pcre
          • Pire
          • Re2
          • String
          • Unicode
          • DateTime
          • Url
          • Ip
          • Yson
          • Digest
          • Math
          • Histogram
      • YQL tutorial
        • Overview
        • Creating a table
        • Adding data to a table
        • Selecting data from all columns
        • Selecting data from specific columns
        • Sorting and filtering
        • Data aggregation
        • Additional selection criteria
        • Joining tables with JOIN
        • Inserting and updating data with REPLACE
        • Inserting and updating data with UPSERT
        • Inserting data with INSERT
        • Updating data with UPDATE
        • Deleting data
        • Adding and deleting columns
        • Deleting a table
    • CLI
      • Overview
      • Install
      • Structure of YDB CLI commands
      • Service commands
      • Connecting to and authenticating with a database
      • Global parameters
      • Working with the DB schema
        • List of objects
        • Information about the object
        • Directories
        • Secondary indexes
        • Renaming tables
      • Operations with data
        • Making a DB query
        • Query execution plan
        • Streaming table reads
        • Scan queries
      • Importing and exporting data
        • Overview
        • File structure of data export
        • Exporting data to the file system
        • Importing data from the file system
        • Connecting to and authenticating with S3
        • Exporting data to S3
        • Importing data from S3
      • Managing profiles
        • Overview
        • Creating a profile
        • Using a profile in requests
        • Getting profile information
        • Deleting a profile
        • Activated profile
      • Information services
        • List of endpoints
        • Authentication
      • Load testing
        • Overview
        • Stock load
    • SDK
      • Overview
      • Install
      • Authentication
      • Test app
        • Overview
        • C++
        • C# (.NET)
        • Go
        • Java
        • Node.js
        • PHP
        • Python
        • Archive
          • Go v1
          • Go v2
      • Handling errors in the API
      • Code recipes
        • Overview
        • Authentication
          • Overview
          • Using a token
          • Anonymous
          • Service account file
          • Metadata service
          • Using environment variables
          • Username and password based
        • Balancing
          • Overview
          • Random choice
          • Prefer the nearest data
          • Prefer the availability zone
        • Running repeat queries
        • Troubleshooting
          • Overview
          • Enable logging
          • Enable metrics in Prometheus
          • Enable tracing in Jaeger
        • Setting the session pool size
  • FAQ
    • Overview
    • General questions
    • SDK
    • Errors
    • YQL
    • Serverless
    • All questions on one page
  • Downloads
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