44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
---
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title: MariaDB Galera + MaxScale
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category: systems
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tags: [mariadb, galera, maxscale, database, ha]
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created: "2026-07-24"
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modified: "2026-07-24"
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---
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# MariaDB Galera + MaxScale
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## Galera Cluster (3/3 Synced)
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| Node | VM | IP | Role |
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|------|----|----|------|
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| db1 | VM300 (ms-a2-1) | 10.0.30.71 | Slave |
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| db2 | VM301 (proxmox3) | 10.0.30.72 | Slave |
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| db3 | VM302 (proxmox6) | 10.0.30.73 | Master |
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- **Root Credentials:** `/root/.my.cnf` auf VM300 (via `qm guest exec`)
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- **1Password `mariadb-root` Item:** PASSWORT IST FALSCH — stimmt nicht mit `/root/.my.cnf` überein
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## MaxScale Proxy (HA)
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| Node | VM | IP | Port |
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|------|----|----|------|
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| MaxScale-01 | VM310 (proxmox1) | 10.0.30.81 | Admin :8989 |
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| MaxScale-02 | VM311 (ms-a2-1) | 10.0.30.82 | Standby |
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| **VIP** | — | **10.0.30.70** | :3306 (keepalived) |
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- **Admin:** `admin:mariadb` auf :8989
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## VM Konfiguration
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- VM300: `balloon: 0` (disabled) — verhindert InnoDB Buffer Pool Swapping
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- Standard Practice für DB VMs
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## Fluent Bit
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- VM300/301/302 (Galera): Fluent Bit aktiv
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- VM310/311 (MaxScale): Fluent Bit aktiv
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## Related Skills
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- `mariadb-galera-cluster-administration` (devops)
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## Related
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- [[systems/proxmox-cluster]]
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- [[reference/ip-map]]
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