correct Unhandled exception. System.IO.FileNotFoundException: Could not find file '/opt/jellyfin/ServerSetupApp/index.mstemplate.html'.

2026-07-08 13:28:06 -04:00
parent 72081ca13d
commit aca106bfe9
2448 changed files with 72988 additions and 1 deletions
@@ -0,0 +1,365 @@
+-- PostgreSQL Performance Diagnostics for Jellyfin
+-- Run this to diagnose current performance issues
+
+\timing on
+\x auto
+
+\echo '========================================='
+\echo 'Jellyfin PostgreSQL Performance Report'
+\echo '========================================='
+\echo ''
+
+-- ============================================================================
+-- 1. Connection Pool Status
+-- ============================================================================
+
+\echo '1. CONNECTION POOL STATUS'
+\echo '-----------------------------------------'
+
+SELECT 
+    count(*) as total_connections,
+    count(*) FILTER (WHERE state = 'active') as active,
+    count(*) FILTER (WHERE state = 'idle') as idle,
+    count(*) FILTER (WHERE state = 'idle in transaction') as idle_in_transaction,
+    count(*) FILTER (WHERE state = 'idle in transaction (aborted)') as aborted,
+    count(*) FILTER (WHERE wait_event_type IS NOT NULL) as waiting
+FROM pg_stat_activity 
+WHERE datname = 'jellyfin';
+
+\echo ''
+
+-- ============================================================================
+-- 2. Long-Running Queries
+-- ============================================================================
+
+\echo '2. LONG-RUNNING QUERIES (>1 second)'
+\echo '-----------------------------------------'
+
+SELECT 
+    pid,
+    usename,
+    application_name,
+    now() - query_start as duration,
+    state,
+    wait_event_type,
+    wait_event,
+    left(query, 100) as query_preview
+FROM pg_stat_activity
+WHERE datname = 'jellyfin' 
+  AND state != 'idle' 
+  AND query_start < now() - interval '1 second'
+ORDER BY duration DESC
+LIMIT 10;
+
+\echo ''
+
+-- ============================================================================
+-- 3. Table Sizes
+-- ============================================================================
+
+\echo '3. TABLE SIZES (Top 10)'
+\echo '-----------------------------------------'
+
+SELECT 
+    s.schemaname,
+    s.relname as tablename,
+    pg_size_pretty(pg_total_relation_size(s.schemaname||'.'||s.relname)) AS total_size,
+    pg_size_pretty(pg_relation_size(s.schemaname||'.'||s.relname)) AS table_size,
+    pg_size_pretty(pg_total_relation_size(s.schemaname||'.'||s.relname) - pg_relation_size(s.schemaname||'.'||s.relname)) AS index_size,
+    s.n_live_tup as row_count
+FROM pg_stat_user_tables s
+WHERE s.schemaname IN ('library', 'users', 'authentication', 'displaypreferences', 'activitylog')
+ORDER BY pg_total_relation_size(s.schemaname||'.'||s.relname) DESC
+LIMIT 10;
+
+\echo ''
+
+-- ============================================================================
+-- 4. Index Usage Statistics
+-- ============================================================================
+
+\echo '4. INDEX USAGE (Tables with low index usage)'
+\echo '-----------------------------------------'
+
+SELECT 
+    schemaname,
+    relname as tablename,
+    seq_scan,
+    idx_scan,
+    n_live_tup as rows,
+    CASE 
+        WHEN seq_scan + idx_scan > 0 
+        THEN round(idx_scan::numeric / (seq_scan + idx_scan) * 100, 2)
+        ELSE 0 
+    END as index_usage_percent
+FROM pg_stat_user_tables
+WHERE schemaname IN ('library', 'users', 'authentication', 'displaypreferences', 'activitylog')
+  AND n_live_tup > 100
+ORDER BY 
+    CASE 
+        WHEN seq_scan + idx_scan > 0 
+        THEN idx_scan::numeric / (seq_scan + idx_scan)
+        ELSE 0 
+    END ASC
+LIMIT 10;
+
+\echo ''
+
+-- ============================================================================
+-- 5. Missing Indexes (High Sequential Scans)
+-- ============================================================================
+
+\echo '5. TABLES WITH HIGH SEQUENTIAL SCANS'
+\echo '-----------------------------------------'
+
+SELECT 
+    schemaname,
+    relname as tablename,
+    seq_scan,
+    seq_tup_read,
+    idx_scan,
+    n_live_tup,
+    CASE 
+        WHEN seq_scan > 0 
+        THEN seq_tup_read / seq_scan 
+        ELSE 0 
+    END as avg_rows_per_seq_scan
+FROM pg_stat_user_tables
+WHERE schemaname IN ('library', 'users', 'authentication', 'displaypreferences', 'activitylog')
+  AND seq_scan > 100
+  AND seq_tup_read > 10000
+ORDER BY seq_tup_read DESC
+LIMIT 10;
+
+\echo ''
+
+-- ============================================================================
+-- 6. Table Bloat (Dead Tuples)
+-- ============================================================================
+
+\echo '6. TABLE BLOAT (Dead Tuples)'
+\echo '-----------------------------------------'
+
+SELECT 
+    schemaname,
+    relname as tablename,
+    n_dead_tup as dead_tuples,
+    n_live_tup as live_tuples,
+    CASE 
+        WHEN n_live_tup > 0 
+        THEN round(n_dead_tup::numeric / n_live_tup * 100, 2)
+        ELSE 0 
+    END as dead_tuple_percent,
+    last_vacuum,
+    last_autovacuum,
+    last_analyze,
+    last_autoanalyze
+FROM pg_stat_user_tables
+WHERE schemaname IN ('library', 'users', 'authentication', 'displaypreferences', 'activitylog')
+  AND n_dead_tup > 100
+ORDER BY n_dead_tup DESC
+LIMIT 10;
+
+\echo ''
+
+-- ============================================================================
+-- 7. Cache Hit Ratio
+-- ============================================================================
+
+\echo '7. CACHE HIT RATIO (Should be >95%)'
+\echo '-----------------------------------------'
+
+SELECT 
+    'Buffer Cache Hit Ratio' as metric,
+    round(
+        sum(blks_hit) / nullif(sum(blks_hit) + sum(blks_read), 0) * 100,
+        2
+    ) as hit_ratio_percent
+FROM pg_stat_database
+WHERE datname = 'jellyfin';
+
+\echo ''
+
+-- ============================================================================
+-- 8. Index Efficiency
+-- ============================================================================
+
+\echo '8. UNUSED OR RARELY USED INDEXES'
+\echo '-----------------------------------------'
+
+SELECT 
+    schemaname,
+    relname as tablename,
+    indexrelname as indexname,
+    pg_size_pretty(pg_relation_size(indexrelid)) as index_size,
+    idx_scan as times_used,
+    idx_tup_read,
+    idx_tup_fetch
+FROM pg_stat_user_indexes
+WHERE schemaname IN ('library', 'users', 'authentication', 'displaypreferences', 'activitylog')
+  AND idx_scan < 50
+  AND pg_relation_size(indexrelid) > 1000000
+ORDER BY pg_relation_size(indexrelid) DESC
+LIMIT 10;
+
+\echo ''
+
+-- ============================================================================
+-- 9. Locks
+-- ============================================================================
+
+\echo '9. CURRENT LOCKS (Blocked queries)'
+\echo '-----------------------------------------'
+
+SELECT 
+    bl.pid AS blocked_pid,
+    a.usename AS blocked_user,
+    ka.query AS blocking_query,
+    now() - ka.query_start AS blocking_duration,
+    a.query AS blocked_query
+FROM pg_catalog.pg_locks bl
+JOIN pg_catalog.pg_stat_activity a ON bl.pid = a.pid
+JOIN pg_catalog.pg_locks kl ON bl.transactionid = kl.transactionid AND bl.pid != kl.pid
+JOIN pg_catalog.pg_stat_activity ka ON kl.pid = ka.pid
+WHERE NOT bl.granted
+  AND a.datname = 'jellyfin';
+
+\echo ''
+
+-- ============================================================================
+-- 10. Slow Queries (if pg_stat_statements is enabled)
+-- ============================================================================
+
+\echo '10. SLOWEST QUERIES (Requires pg_stat_statements extension)'
+\echo '-----------------------------------------'
+
+DO $$
+BEGIN
+    IF EXISTS (
+        SELECT 1 FROM pg_extension WHERE extname = 'pg_stat_statements'
+    ) THEN
+        RAISE NOTICE 'pg_stat_statements is installed. Showing slow queries...';
+    ELSE
+        RAISE NOTICE 'pg_stat_statements is NOT installed. Run: CREATE EXTENSION pg_stat_statements;';
+    END IF;
+END $$;
+
+-- Only run if extension exists (wrapped in DO block to prevent error)
+DO $$
+DECLARE
+    query_rec RECORD;
+BEGIN
+    IF EXISTS (SELECT 1 FROM pg_extension WHERE extname = 'pg_stat_statements') THEN
+        FOR query_rec IN 
+            SELECT 
+                calls,
+                round(mean_exec_time::numeric, 2) as avg_time_ms,
+                round(max_exec_time::numeric, 2) as max_time_ms,
+                round(total_exec_time::numeric, 2) as total_time_ms,
+                round((100 * total_exec_time / sum(total_exec_time) OVER ())::numeric, 2) as percent_total,
+                left(query, 100) as query_preview
+            FROM pg_stat_statements
+            WHERE query NOT LIKE '%pg_stat_statements%'
+              AND query NOT LIKE '%pg_catalog%'
+            ORDER BY mean_exec_time DESC
+            LIMIT 10
+        LOOP
+            RAISE NOTICE 'Calls: %, Avg: %ms, Max: %ms, Total: %ms, %%: %, Query: %', 
+                query_rec.calls, 
+                query_rec.avg_time_ms, 
+                query_rec.max_time_ms, 
+                query_rec.total_time_ms, 
+                query_rec.percent_total, 
+                query_rec.query_preview;
+        END LOOP;
+    END IF;
+END $$;
+
+\echo ''
+
+-- ============================================================================
+-- 11. Database Configuration
+-- ============================================================================
+
+\echo '11. KEY POSTGRESQL SETTINGS'
+\echo '-----------------------------------------'
+
+SELECT 
+    name,
+    setting,
+    unit,
+    short_desc
+FROM pg_settings
+WHERE name IN (
+    'max_connections',
+    'shared_buffers',
+    'effective_cache_size',
+    'work_mem',
+    'maintenance_work_mem',
+    'random_page_cost',
+    'effective_io_concurrency',
+    'autovacuum',
+    'checkpoint_completion_target',
+    'wal_buffers',
+    'default_statistics_target'
+)
+ORDER BY name;
+
+\echo ''
+
+-- ============================================================================
+-- 12. Recommendations
+-- ============================================================================
+
+\echo '12. RECOMMENDATIONS'
+\echo '-----------------------------------------'
+
+DO $$
+DECLARE
+    conn_count int;
+    hit_ratio numeric;
+    max_conn int;
+    bloat_tables int;
+BEGIN
+    -- Check connection count
+    SELECT count(*) INTO conn_count
+    FROM pg_stat_activity WHERE datname = 'jellyfin';
+    
+    SELECT setting::int INTO max_conn
+    FROM pg_settings WHERE name = 'max_connections';
+    
+    IF conn_count::numeric / max_conn > 0.8 THEN
+        RAISE WARNING 'High connection usage: % of % max connections', conn_count, max_conn;
+        RAISE NOTICE 'RECOMMENDATION: Increase max_connections in postgresql.conf';
+    END IF;
+    
+    -- Check cache hit ratio
+    SELECT round(
+        sum(blks_hit) / nullif(sum(blks_hit) + sum(blks_read), 0) * 100, 2
+    ) INTO hit_ratio
+    FROM pg_stat_database WHERE datname = 'jellyfin';
+    
+    IF hit_ratio < 95 THEN
+        RAISE WARNING 'Low cache hit ratio: %%. Target: >95%%', hit_ratio;
+        RAISE NOTICE 'RECOMMENDATION: Increase shared_buffers and effective_cache_size';
+    END IF;
+    
+    -- Check bloat
+    SELECT count(*) INTO bloat_tables
+    FROM pg_stat_user_tables
+    WHERE n_dead_tup > 1000
+      AND schemaname IN ('library', 'users', 'authentication');
+    
+    IF bloat_tables > 0 THEN
+        RAISE WARNING 'Found % tables with significant dead tuples', bloat_tables;
+        RAISE NOTICE 'RECOMMENDATION: Run VACUUM ANALYZE or adjust autovacuum settings';
+    END IF;
+    
+    RAISE NOTICE 'Diagnostic report complete.';
+END $$;
+
+\echo ''
+\echo '========================================='
+\echo 'Run sql/performance_indexes.sql to add missing indexes'
+\echo 'See PERFORMANCE_TROUBLESHOOTING.md for detailed fixes'
+\echo '========================================='