Files
dbbackup/cmd/verify_locks.go
Alexander Renz 6a2bd9198f feat: add systematic verification tool for large database restores with BLOB support
- Add LargeRestoreChecker for 100% reliable verification of restored databases
- Support PostgreSQL large objects (lo) and bytea columns
- Support MySQL BLOB columns (blob, mediumblob, longblob, etc.)
- Streaming checksum calculation for very large files (64MB chunks)
- Table integrity verification (row counts, checksums)
- Database-level integrity checks (orphaned objects, invalid indexes)
- Parallel verification for multiple databases
- Source vs target database comparison
- Backup file format detection and verification
- New CLI command: dbbackup verify-restore
- Comprehensive test coverage
2026-01-23 07:39:57 +01:00

65 lines
1.4 KiB
Go

package cmd
import (
"context"
"fmt"
"os"
"dbbackup/internal/checks"
"github.com/spf13/cobra"
)
var verifyLocksCmd = &cobra.Command{
Use: "verify-locks",
Short: "Check PostgreSQL lock settings and print restore guidance",
Long: `Probe PostgreSQL for lock-related GUCs (max_locks_per_transaction, max_connections, max_prepared_transactions) and print capacity + recommended restore options.`,
RunE: func(cmd *cobra.Command, args []string) error {
return runVerifyLocks(cmd.Context())
},
}
func runVerifyLocks(ctx context.Context) error {
p := checks.NewPreflightChecker(cfg, log)
res, err := p.RunAllChecks(ctx, cfg.Database)
if err != nil {
return err
}
// Find the Postgres lock check in the preflight results
var chk checks.PreflightCheck
found := false
for _, c := range res.Checks {
if c.Name == "PostgreSQL lock configuration" {
chk = c
found = true
break
}
}
if !found {
fmt.Println("No PostgreSQL lock check available (skipped)")
return nil
}
fmt.Printf("%s\n", chk.Name)
fmt.Printf("Status: %s\n", chk.Status.String())
fmt.Printf("%s\n\n", chk.Message)
if chk.Details != "" {
fmt.Println(chk.Details)
}
// exit non-zero for failures so scripts can react
if chk.Status == checks.StatusFailed {
os.Exit(2)
}
if chk.Status == checks.StatusWarning {
os.Exit(0)
}
return nil
}
func init() {
rootCmd.AddCommand(verifyLocksCmd)
}