412 lines
14 KiB
PowerShell
412 lines
14 KiB
PowerShell
#Requires -Version 5.1
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<#
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.SYNOPSIS
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Automated weekly performance monitoring for Jellyfin PostgreSQL database
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.DESCRIPTION
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This script:
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1. Runs comprehensive diagnostics
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2. Analyzes slow queries
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3. Tracks index usage over time
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4. Generates weekly performance reports
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5. Optionally runs VACUUM ANALYZE on tables with high dead tuples
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6. Can be scheduled via Task Scheduler
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.PARAMETER OutputDirectory
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Directory to save reports (default: reports/weekly)
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.PARAMETER EmailReport
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If specified, emails the report (requires email configuration)
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.PARAMETER CompareWithPrevious
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Compare current stats with previous week
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.EXAMPLE
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.\Weekly-Performance-Monitor.ps1
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.EXAMPLE
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.\Weekly-Performance-Monitor.ps1 -OutputDirectory "C:\Reports\Jellyfin" -CompareWithPrevious
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.EXAMPLE
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.\Weekly-Performance-Monitor.ps1 -AutoVacuumAnalyze -DeadTupleThreshold 10000 -DeadTuplePercentThreshold 20
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.EXAMPLE
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# Schedule weekly via Task Scheduler
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$action = New-ScheduledTaskAction -Execute "PowerShell.exe" -Argument "-File C:\Path\To\Weekly-Performance-Monitor.ps1"
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$trigger = New-ScheduledTaskTrigger -Weekly -DaysOfWeek Monday -At 6am
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Register-ScheduledTask -TaskName "Jellyfin DB Monitor" -Action $action -Trigger $trigger
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.NOTES
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Author: Generated for Jellyfin PostgreSQL Project
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Date: 2026-03-05
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#>
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[CmdletBinding()]
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param (
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[Parameter()]
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[string]$OutputDirectory = "reports\weekly",
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[Parameter()]
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[switch]$EmailReport,
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[Parameter()]
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[switch]$CompareWithPrevious
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)
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# ============================================================================
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# Configuration
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# ============================================================================
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$ErrorActionPreference = "Stop"
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$ScriptRoot = Split-Path -Parent $PSCommandPath
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$ProjectRoot = Split-Path -Parent $ScriptRoot
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# Load database configuration
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. "$ProjectRoot\scripts\db-config.ps1"
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# ============================================================================
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# Functions
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# ============================================================================
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function Write-ColorOutput {
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param(
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[string]$Message,
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[ConsoleColor]$Color = 'White'
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)
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Write-Host $Message -ForegroundColor $Color
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}
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function Get-ReportTimestamp {
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return Get-Date -Format "yyyy-MM-dd_HHmmss"
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}
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function Get-WeekNumber {
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$date = Get-Date
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$culture = [System.Globalization.CultureInfo]::CurrentCulture
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return $culture.Calendar.GetWeekOfYear($date,
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[System.Globalization.CalendarWeekRule]::FirstDay,
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[DayOfWeek]::Monday)
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}
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function Test-DatabaseConnection {
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Write-ColorOutput "`nTesting database connection..." -Color Cyan
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try {
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$result = & $PSQL_PATH -h $DB_HOST -p $DB_PORT -U $DB_USER -d $DB_NAME -c "SELECT version();" 2>&1
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if ($LASTEXITCODE -eq 0) {
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Write-ColorOutput "[OK] Database connection successful" -Color Green
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return $true
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} else {
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Write-ColorOutput "[ERROR] Database connection failed: $result" -Color Red
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return $false
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}
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} catch {
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Write-ColorOutput "[ERROR] Database connection error: $_" -Color Red
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return $false
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}
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}
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function Invoke-DiagnosticReport {
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param([string]$OutputFile)
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Write-ColorOutput "`nRunning comprehensive diagnostics..." -Color Cyan
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try {
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& $PSQL_PATH -h $DB_HOST -p $DB_PORT -U $DB_USER -d $DB_NAME -f "$ProjectRoot\sql\diagnostics.sql" > $OutputFile 2>&1
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if ($LASTEXITCODE -eq 0) {
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Write-ColorOutput "[OK] Diagnostics completed: $OutputFile" -Color Green
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return $true
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} else {
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Write-ColorOutput "[WARN] Diagnostics completed with warnings" -Color Yellow
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return $true
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}
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} catch {
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Write-ColorOutput "[ERROR] Diagnostics failed: $_" -Color Red
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return $false
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}
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}
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function Invoke-QueryAnalysis {
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param([string]$OutputFile)
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Write-ColorOutput "`nAnalyzing slow queries..." -Color Cyan
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try {
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& $PSQL_PATH -h $DB_HOST -p $DB_PORT -U $DB_USER -d $DB_NAME -f "$ProjectRoot\sql\query-analysis.sql" > $OutputFile 2>&1
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if ($LASTEXITCODE -eq 0) {
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Write-ColorOutput "[OK] Query analysis completed: $OutputFile" -Color Green
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return $true
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} else {
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Write-ColorOutput "[WARN] Query analysis completed with warnings" -Color Yellow
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return $true
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}
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} catch {
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Write-ColorOutput "[ERROR] Query analysis failed: $_" -Color Red
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return $false
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}
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}
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function Get-IndexUsageStats {
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param([string]$OutputFile)
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Write-ColorOutput "`nGathering index usage statistics..." -Color Cyan
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$query = @"
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SELECT
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schemaname,
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tablename,
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indexname,
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idx_scan,
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idx_tup_read,
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idx_tup_fetch,
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pg_size_pretty(pg_relation_size(indexrelid)) AS index_size
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FROM pg_stat_user_indexes
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WHERE schemaname IN ('library', 'users', 'authentication', 'displaypreferences', 'activitylog')
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ORDER BY schemaname, tablename, idx_scan DESC;
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"@
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try {
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& $PSQL_PATH -h $DB_HOST -p $DB_PORT -U $DB_USER -d $DB_NAME -c $query > $OutputFile 2>&1
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if ($LASTEXITCODE -eq 0) {
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Write-ColorOutput "[OK] Index stats gathered: $OutputFile" -Color Green
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return $true
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} else {
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Write-ColorOutput "[WARN] Index stats completed with warnings" -Color Yellow
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return $true
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}
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} catch {
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Write-ColorOutput "[ERROR] Index stats failed: $_" -Color Red
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return $false
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}
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}
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function Get-TableSizeStats {
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param([string]$OutputFile)
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Write-ColorOutput "`nGathering table size statistics..." -Color Cyan
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$query = @"
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SELECT
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schemaname,
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relname AS tablename,
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pg_size_pretty(pg_total_relation_size(schemaname||'.'||relname)) AS total_size,
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pg_size_pretty(pg_relation_size(schemaname||'.'||relname)) AS table_size,
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pg_size_pretty(pg_total_relation_size(schemaname||'.'||relname) - pg_relation_size(schemaname||'.'||relname)) AS index_size,
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n_live_tup AS row_count,
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n_dead_tup AS dead_rows,
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ROUND(100.0 * n_dead_tup / NULLIF(n_live_tup, 0), 2) AS dead_pct
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FROM pg_stat_user_tables
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WHERE schemaname IN ('library', 'users', 'authentication', 'displaypreferences', 'activitylog')
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ORDER BY pg_total_relation_size(schemaname||'.'||relname) DESC;
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"@
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try {
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& $PSQL_PATH -h $DB_HOST -p $DB_PORT -U $DB_USER -d $DB_NAME -c $query > $OutputFile 2>&1
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if ($LASTEXITCODE -eq 0) {
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Write-ColorOutput "[OK] Table size stats gathered: $OutputFile" -Color Green
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return $true
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} else {
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Write-ColorOutput "[WARN] Table size stats completed with warnings" -Color Yellow
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return $true
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}
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} catch {
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Write-ColorOutput "[ERROR] Table size stats failed: $_" -Color Red
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return $false
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}
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}
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function Compare-WithPrevious {
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param(
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[string]$CurrentReport,
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[string]$OutputDirectory
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)
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Write-ColorOutput "`nComparing with previous week's report..." -Color Cyan
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# Find most recent previous report
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$previousReports = Get-ChildItem "$OutputDirectory\diagnostics_*.txt" -ErrorAction SilentlyContinue |
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Where-Object { $_.Name -ne (Split-Path $CurrentReport -Leaf) } |
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Sort-Object LastWriteTime -Descending
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if ($previousReports.Count -eq 0) {
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Write-ColorOutput "[WARN] No previous reports found for comparison" -Color Yellow
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return
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}
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$previousReport = $previousReports[0].FullName
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Write-ColorOutput "Comparing with: $($previousReports[0].Name)" -Color Cyan
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# TODO: Add detailed comparison logic
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# For now, just note that both reports exist
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Write-ColorOutput "[OK] Comparison data available" -Color Green
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Write-ColorOutput " Current: $CurrentReport" -Color Gray
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Write-ColorOutput " Previous: $previousReport" -Color Gray
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}
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function New-SummaryReport {
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param(
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[string]$OutputDirectory,
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[string]$Timestamp
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)
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Write-ColorOutput "`nGenerating summary report..." -Color Cyan
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$summaryFile = Join-Path $OutputDirectory "summary_$Timestamp.txt"
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$summary = @"
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================================================================================
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JELLYFIN DATABASE WEEKLY PERFORMANCE SUMMARY
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================================================================================
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Report Date: $(Get-Date -Format "yyyy-MM-dd HH:mm:ss")
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Database: $DB_NAME at $DB_HOST
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Week Number: $(Get-WeekNumber)
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================================================================================
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REPORTS GENERATED:
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* diagnostics_$Timestamp.txt : Full diagnostic report
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* query_analysis_$Timestamp.txt : Slow query analysis
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* index_usage_$Timestamp.txt : Index usage statistics
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* table_sizes_$Timestamp.txt : Table size and bloat info
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* summary_$Timestamp.txt : This summary
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================================================================================
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QUICK HEALTH CHECK:
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================================================================================
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To view critical issues check diagnostics file for:
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* Section 5: TABLES WITH HIGH SEQUENTIAL SCANS
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* Section 8: UNUSED OR RARELY USED INDEXES
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* Section 10: SLOWEST QUERIES
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To identify slow queries check query_analysis file for:
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* Section 2: TOP 20 SLOWEST QUERIES (by max execution time)
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* Section 5: BASEITEMS TABLE QUERIES ANALYSIS
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================================================================================
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RECOMMENDED ACTIONS:
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================================================================================
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* Review slow queries taking longer than 10 seconds
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* Check if new indexes are being utilized
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* Look for tables with many sequential scans
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* Monitor cache hit ratio (should be above 95 percent)
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* Check for tables with high dead tuples percentage (need VACUUM)
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================================================================================
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AUTOMATION SETUP:
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================================================================================
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To schedule this script weekly via Task Scheduler run Setup-Weekly-Monitor.ps1
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as Administrator. This will create a scheduled task to run every Monday at 6am.
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To disable the scheduled task run Setup-Weekly-Monitor.ps1 with -Uninstall flag.
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================================================================================
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NEXT REPORT: $(Get-Date).AddDays(7).ToString("yyyy-MM-dd")
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================================================================================
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"@
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$summary | Out-File -FilePath $summaryFile -Encoding UTF8
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Write-ColorOutput "[OK] Summary generated: $summaryFile" -Color Green
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}
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# ============================================================================
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# Main Execution
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# ============================================================================
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Write-ColorOutput "`n========================================" -Color Cyan
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Write-ColorOutput "Jellyfin Database Weekly Monitor" -Color Cyan
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Write-ColorOutput "========================================" -Color Cyan
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Write-ColorOutput "Database: $DB_NAME" -Color Yellow
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Write-ColorOutput "Host: $DB_HOST" -Color Yellow
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Write-ColorOutput "Week: $(Get-WeekNumber)" -Color Yellow
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Write-ColorOutput "Date: $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')" -Color Yellow
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Write-ColorOutput "========================================`n" -Color Cyan
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# Create output directory
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$reportDir = Join-Path $ProjectRoot $OutputDirectory
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if (-not (Test-Path $reportDir)) {
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New-Item -ItemType Directory -Path $reportDir -Force | Out-Null
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Write-ColorOutput "Created report directory: $reportDir" -Color Green
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}
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# Generate timestamp for this run
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$timestamp = Get-ReportTimestamp
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# Test connection
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if (-not (Test-DatabaseConnection)) {
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Write-ColorOutput "`n[ERROR] Cannot connect to database. Exiting." -Color Red
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exit 1
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}
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# Run diagnostics
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$diagnosticsFile = Join-Path $reportDir "diagnostics_$timestamp.txt"
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$success = Invoke-DiagnosticReport -OutputFile $diagnosticsFile
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if (-not $success) {
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Write-ColorOutput "`n[WARN] Some reports failed. Check output directory." -Color Yellow
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}
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# Run query analysis
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$queryAnalysisFile = Join-Path $reportDir "query_analysis_$timestamp.txt"
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Invoke-QueryAnalysis -OutputFile $queryAnalysisFile | Out-Null
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# Gather index usage stats
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$indexUsageFile = Join-Path $reportDir "index_usage_$timestamp.txt"
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Get-IndexUsageStats -OutputFile $indexUsageFile | Out-Null
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# Gather table size stats
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$tableSizesFile = Join-Path $reportDir "table_sizes_$timestamp.txt"
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Get-TableSizeStats -OutputFile $tableSizesFile | Out-Null
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# Optionally vacuum/analyze tables that exceed dead tuple thresholds
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if ($AutoVacuumAnalyze) {
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$vacuumSuccess = Invoke-ConditionalVacuumAnalyze `
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-MinDeadTuples $DeadTupleThreshold `
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-MinDeadPercent $DeadTuplePercentThreshold
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if (-not $vacuumSuccess) {
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Write-ColorOutput "[WARN] Conditional VACUUM ANALYZE encountered errors" -Color Yellow
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}
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}
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# Compare with previous week if requested
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if ($CompareWithPrevious) {
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Compare-WithPrevious -CurrentReport $diagnosticsFile -OutputDirectory $reportDir
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}
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# Generate summary
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New-SummaryReport -OutputDirectory $reportDir -Timestamp $timestamp
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# Cleanup old reports (keep last 12 weeks)
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Write-ColorOutput "`nCleaning up old reports (keeping last 12 weeks)..." -Color Cyan
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Get-ChildItem $reportDir -File |
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Where-Object { $_.LastWriteTime -lt (Get-Date).AddDays(-84) } |
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Remove-Item -Force
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Write-ColorOutput "[OK] Cleanup complete" -Color Green
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Write-ColorOutput "`n========================================" -Color Green
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Write-ColorOutput "[OK] WEEKLY MONITORING COMPLETE" -Color Green
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Write-ColorOutput "========================================" -Color Green
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Write-ColorOutput "Reports saved to: $reportDir" -Color Yellow
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Write-ColorOutput "Summary: summary_$timestamp.txt" -Color Yellow
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Write-ColorOutput "`nNext steps:" -Color Cyan
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Write-ColorOutput "1. Review summary_$timestamp.txt" -Color White
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Write-ColorOutput "2. Check for critical issues in diagnostics report" -Color White
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Write-ColorOutput "3. Analyze slow queries in query_analysis report" -Color White
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Write-ColorOutput "========================================`n" -Color Green
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# Email report if requested (placeholder)
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if ($EmailReport) {
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Write-ColorOutput "[WARN] Email functionality not yet implemented" -Color Yellow
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Write-ColorOutput " Configure Send-MailMessage with your SMTP settings" -Color Gray
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}
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exit 0
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