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  • KubeDB

    Run Production-Grade Databases on Kubernetes

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    Stash

    Backup and Recovery Solution for Kubernetes

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    KubeVault

    Run Production-Grade Vault on Kubernetes

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    Secure HAProxy Ingress Controller for Kubernetes

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    ConfigSyncer

    Kubernetes Configuration Syncer

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    Guard

    Kubernetes Authentication WebHook Server

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    KubeDB

    KubeDB simplifies Provision, Upgrade, Scaling, Volume Expansion, Monitor, Backup, Restore for various Databases in Kubernetes on any Public & Private Cloud

    • task_altLower administrative burden
    • task_altNative Kubernetes Support
    • task_altPerformance
    • task_altAvailability and durability
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    Stash

    A complete Kubernetes native disaster recovery solution for backup and restore your volumes and databases in Kubernetes on any public and private clouds.

    • task_altDeclarative API
    • task_altBackup Kubernetes Volumes
    • task_altBackup Database
    • task_altMultiple Storage Support
    • task_altDeduplication
    • task_altData Encryption
    • task_altVolume Snapshot
    • task_altPolicy Based Backup
    KubeVault

    KubeVault is a Git-Ops ready, production-grade solution for deploying and configuring Hashicorp's Vault on Kubernetes.

    • task_altVault Kubernetes Deployment
    • task_altAuto Initialization & Unsealing
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    • task_altConsume KubeVault Secrets with CSI
    • task_altManage DB Users Privileges
    • task_altStorage Backend
    • task_altAuthentication Method
    • task_altDatabase Secret Engine
    Voyager

    Secure HAProxy Ingress Controller for Kubernetes

    • task_altHTTP & TCP
    • task_altSSL
    • task_altPlatform support
    • task_altHAProxy
    • task_altPrometheus
    • task_altLet's Encrypt
    configsyncer

    Kubernetes Configuration Syncer

    • task_altConfiguration Syncer
    Guard

    Kubernetes Authentication WebHook Server

    • task_altIdentity Providers
    • task_altCLI
    • task_altRBAC
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New to KubeDB? Please start here.

MariaDB Galera Cluster

Here we’ll discuss some concepts about MariaDB Galera Cluster.

So What is Replication

Replication means data being copied from one MariaDB server to one or more other MariaDB servers, instead of only stored in one server. One can read or write in any server of the cluster. The following figure shows a cluster of four MariaDB servers:

MariaDB Cluster

Image ref: https://mariadb.com/kb/en/what-is-mariadb-galera-cluster/+image/galera_small

Galera Replication

MariaDB Galera Cluster is a virtually synchronous multi-master cluster for MariaDB. The Server replicates a transaction at commit time by broadcasting the write set associated with the transaction to every node in the cluster. The client connects directly to the DBMS and experiences behavior that is similar to native MariaDB in most cases. The wsrep API (write set replication API) defines the interface between Galera replication and MariaDB.

Ref: About Galera Replication

MariaDB Galera Cluster Features

  • Virtually synchronous replication
  • Active-active multi-master topology
  • Read and write to any cluster node
  • Automatic membership control, failed nodes drop from the cluster
  • Automatic node joining
  • True parallel replication, on row level
  • Direct client connections, native MariaDB look & feel

Ref: What is MariaDB Galera Cluster?

Limitations

There are some limitations in MariaDB Galera Cluster that are listed here.

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