155 lines
4.9 KiB
Markdown
155 lines
4.9 KiB
Markdown
# 🚀 Genesis Radio - Healthcheck Response Runbook
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## Purpose
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When an alert fires (Critical or Warning), this guide tells you what to do so that **any team member** can react quickly, even if the admin is not available.
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---
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## 🛠️ How to Use
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- Every Mastodon DM or Dashboard alert gives you a **timestamp**, **server name**, and **issue**.
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- Look up the type of issue in the table below.
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- Follow the recommended action immediately.
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---
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## 📋 Quick Response Table
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| Type of Alert | Emoji | What it Means | Immediate Action |
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|:---|:---|:---|:---|
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| [Critical Service Failure](#critical-service-failure-) | 🔚 | A key service (like Mastodon, MinIO) is **down** | SSH into the server, try `systemctl restart <service>`. | A key service (like Mastodon, MinIO) is **down** | SSH into the server, try `systemctl restart <service>`. |
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| [Disk Filling Up](#disk-filling-up-) | 📈 | Disk space critically low (under 10%) | SSH in and delete old logs/backups. Free up space **immediately**. | Disk space critically low (under 10%) | SSH in and delete old logs/backups. Free up space **immediately**. |
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| [Rclone Mount Error](#rclone-mount-error-) | 🐢 | Cache failed, mount not healthy | Restart the rclone mount process. (Usually a `systemctl restart rclone@<mount>`, or remount manually.) | Cache failed, mount not healthy | Restart the rclone mount process. (Usually a `systemctl restart rclone@<mount>`, or remount manually.) |
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| [PostgreSQL Replication Lag](#postgresql-replication-lag-) | 💥 | Database replicas are falling behind | Check database health. Restart replication if needed. Alert admin if lag is >5 minutes. | Database replicas are falling behind | Check database health. Restart replication if needed. Alert admin if lag is >5 minutes. |
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| [RAID Degraded](#raid-degraded-) | 🧸 | RAID array is degraded (missing a disk) | Open server console. Identify failed drive. Replace drive if possible. Otherwise escalate immediately. | RAID array is degraded (missing a disk) | Open server console. Identify failed drive. Replace drive if possible. Otherwise escalate immediately. |
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| [Log File Warnings](#log-file-warnings-) | ⚠️ | Error patterns found in logs | Investigate. If system is healthy, **log it for later**. If errors worsen, escalate. | Error patterns found in logs | Investigate. If system is healthy, **log it for later**. If errors worsen, escalate. |
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---
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## 💻 If Dashboard Shows
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- ✅ **All Green** = No action needed.
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- ⚠️ **Warnings** = Investigate soon. Not urgent unless repeated.
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- 🚨 **Criticals** = Drop everything and act immediately.
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---
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## 🛡️ Emergency Contacts
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| Role | Name | Contact |
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|:----|:-----|:--------|
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| Primary Admin | (You) | [845-453-0820] |
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| Secondary | Brice | [BRICE CONTACT INFO] |
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(Replace placeholders with actual contact details.)
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---
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## ✍️ Example Cheat Sheet for Brice
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**Sample Mastodon DM:**
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> 🚨 Genesis Radio Critical Healthcheck 2025-04-28 14:22:33 🚨
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> ⚡ 1 critical issue found:
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> - 🔚 [mastodon] CRITICAL: Service mastodon-web not running!
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**Brice should:**
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1. SSH into Mastodon server.
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2. Run `systemctl restart mastodon-web`.
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3. Confirm the service is running again.
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4. If it fails or stays down, escalate to admin.
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---
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# 🌟 TL;DR
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- 🚨 Criticals: Act immediately.
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- ⚠️ Warnings: Investigate soon.
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- ✅ Healthy: No action needed.
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---
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# 🛠️ Genesis Radio - Detailed Ops Playbook
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## Critical Service Failure (🔚)
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**Symptoms:** Service marked as CRITICAL.
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**Fix:**
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1. SSH into server.
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2. `sudo systemctl status <service>`
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3. `sudo systemctl restart <service>`
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4. Confirm running. Check logs if it fails.
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---
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## Disk Filling Up (📈)
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**Symptoms:** Disk space critically low.
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**Fix:**
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1. SSH into server.
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2. `df -h`
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3. Delete old logs:
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```bash
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sudo rm -rf /var/log/*.gz /var/log/*.[0-9]
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sudo journalctl --vacuum-time=2d
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```
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4. If still low, find big files and clean.
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---
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## Rclone Mount Error (🐢)
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**Symptoms:** Mount failure or slowness.
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**Fix:**
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1. SSH into SPL server.
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2. Unmount & remount:
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```bash
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sudo fusermount -uz /path/to/mount
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sudo systemctl restart rclone@<mount>
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```
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3. Confirm mount is active.
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---
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## PostgreSQL Replication Lag (💥)
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**Symptoms:** Replica database lagging.
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**Fix:**
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1. SSH into replica server.
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2. Check lag:
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```bash
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sudo -u postgres psql -c "SELECT * FROM pg_stat_replication;"
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```
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3. Restart PostgreSQL if stuck.
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4. Monitor replication logs.
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---
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## RAID Degraded (🧸)
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**Symptoms:** RAID missing a disk.
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**Fix:**
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1. SSH into server.
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2. `cat /proc/mdstat`
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3. Find failed drive:
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```bash
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sudo mdadm --detail /dev/md0
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```
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4. Replace failed disk, rebuild array:
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```bash
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sudo mdadm --add /dev/md0 /dev/sdX
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```
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---
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## Log File Warnings (⚠️)
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**Symptoms:** Errors in syslog or nginx.
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**Fix:**
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1. SSH into server.
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2. Review logs:
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```bash
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grep ERROR /var/log/syslog
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```
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3. Investigate. Escalate if necessary.
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---
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**Stay sharp. Early fixes prevent major downtime!** 🛡️💪
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