v3.42.72: Fix Large DB Mode not applying when changing profiles

Critical fix: Large DB Mode settings (reduced parallelism, increased locks)
were not being reapplied when user changed resource profiles in Settings.

This caused cluster restores to fail with 'out of shared memory' errors on
low-resource VMs even when Large DB Mode was enabled.

Now ApplyResourceProfile() properly applies LargeDBMode modifiers after
setting base profile values, ensuring parallelism stays reduced.

Example: balanced profile with Large DB Mode:
- ClusterParallelism: 4 → 2 (halved)
- MaxLocksPerTxn: 2048 → 8192 (increased)

This allows successful cluster restores on low-spec VMs.

bin/README.md

@@ -4,8 +4,8 @@ This directory contains pre-compiled binaries for the DB Backup Tool across mult
 
 ## Build Information
 - **Version**: 3.42.50
-- **Build Time**: 2026-01-18_17:17:17_UTC
-- **Git Commit**: a0a401c
+- **Build Time**: 2026-01-18_20:14:09_UTC
+- **Git Commit**: b305d13
 
 ## Recent Updates (v1.1.0)
 - ✅ Fixed TUI progress display with line-by-line output

internal/config/config.go

@@ -445,6 +445,12 @@ func (c *Config) ApplyResourceProfile(profileName string) error {
 
 	// Apply profile settings
 	c.ResourceProfile = profile.Name
+	
+	// If LargeDBMode is enabled, apply its modifiers
+	if c.LargeDBMode {
+		profile = cpu.ApplyLargeDBMode(profile)
+	}
+	
 	c.ClusterParallelism = profile.ClusterParallelism
 	c.Jobs = profile.Jobs
 	c.DumpJobs = profile.DumpJobs

internal/config/persist.go

@@ -30,7 +30,7 @@ type LocalConfig struct {
 	// Performance settings
 	CPUWorkload     string
 	MaxCores        int
-	ClusterTimeout  int  // Cluster operation timeout in minutes (default: 1440 = 24 hours)
+	ClusterTimeout  int // Cluster operation timeout in minutes (default: 1440 = 24 hours)
 	ResourceProfile string
 	LargeDBMode     bool // Enable large database mode (reduces parallelism, increases locks)
 

internal/tui/backup_exec.go

@@ -39,8 +39,8 @@ type BackupExecutionModel struct {
 	cancelling   bool // True when user has requested cancellation
 	err          error
 	result       string
-	archivePath  string        // Path to created archive (for summary)
-	archiveSize  int64         // Size of created archive (for summary)
+	archivePath  string // Path to created archive (for summary)
+	archiveSize  int64  // Size of created archive (for summary)
 	startTime    time.Time
 	elapsed      time.Duration // Final elapsed time
 	details      []string
@@ -63,8 +63,8 @@ type sharedBackupProgressState struct {
 	dbTotal         int
 	dbDone          int
 	dbName          string
-	overallPhase    int           // 1=globals, 2=databases, 3=compressing
-	phaseDesc       string        // Description of current phase
+	overallPhase    int    // 1=globals, 2=databases, 3=compressing
+	phaseDesc       string // Description of current phase
 	hasUpdate       bool
 	phase2StartTime time.Time     // When phase 2 started (for realtime ETA calculation)
 	dbPhaseElapsed  time.Duration // Elapsed time since database backup phase started

internal/tui/restore_exec.go

@@ -152,8 +152,8 @@ type sharedProgressState struct {
 	currentDB string
 
 	// Timing info for database restore phase
-	dbPhaseElapsed time.Duration // Elapsed time since restore phase started
-	dbAvgPerDB     time.Duration // Average time per database restore
+	dbPhaseElapsed  time.Duration // Elapsed time since restore phase started
+	dbAvgPerDB      time.Duration // Average time per database restore
 	phase3StartTime time.Time     // When phase 3 started (for realtime ETA calculation)
 
 	// Overall phase tracking (1=Extract, 2=Globals, 3=Databases)
@@ -1171,12 +1171,12 @@ func formatRestoreError(errStr string) string {
 
 	// Provide specific recommendations based on error
 	if strings.Contains(errStr, "out of shared memory") || strings.Contains(errStr, "max_locks_per_transaction") {
-		s.WriteString(errorStyle.Render("    • Cannot access file: stat : no such file or directory\n"))
+		s.WriteString(errorStyle.Render("    • PostgreSQL lock table exhausted\n"))
 		s.WriteString("\n")
 		s.WriteString(infoStyle.Render("  ─── [HINT] Recommendations ────────────────────────────────"))
 		s.WriteString("\n\n")
-		s.WriteString("    Lock table exhausted. Total capacity = max_locks_per_transaction\n")
-		s.WriteString("    × (max_connections + max_prepared_transactions).\n\n")
+		s.WriteString("    Lock capacity = max_locks_per_transaction\n")
+		s.WriteString("    × (max_connections + max_prepared_transactions)\n\n")
 		s.WriteString("    If you reduced VM size or max_connections, you need higher\n")
 		s.WriteString("    max_locks_per_transaction to compensate.\n\n")
 		s.WriteString(successStyle.Render("    FIX OPTIONS:\n"))