Troubleshooting 'Failed (exit code: 1)' Error in pgAdmin4 PostgreSQL 10.5

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Summary: Encountering issues while restoring a PostgreSQL database from a .tar file in pgAdmin4? Learn about troubleshooting the "Failed (exit code: 1)" error to successfully restore your database backup.
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Troubleshooting "Failed (exit code: 1)" Error in pgAdmin4 PostgreSQL 10.5

If you've encountered the "Failed (exit code: 1)" error while trying to restore a PostgreSQL database from a .tar file in pgAdmin4, don't panic. This common issue can be caused by various factors, but with a systematic approach, you can troubleshoot and resolve the problem. Here's a step-by-step guide to help you get through this error:

Check File Permissions

Ensure that the user running pgAdmin4 has the necessary permissions to access and read the .tar file. Incorrect file permissions can lead to a failed restore. You can adjust the permissions using the chmod command:

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Verify File Integrity

Make sure the .tar file is not corrupted. You can check its integrity using the pg_restore command without actually restoring the database:

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If the file is corrupted, you might need to obtain a new, intact backup.

Confirm PostgreSQL Version Compatibility

Ensure that the PostgreSQL version of your pgAdmin4 instance is compatible with the version that created the backup. Incompatibility can lead to errors during the restore process. You can check the PostgreSQL version in the pgAdmin4 dashboard or use the following command:

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Examine Error Messages

Review any error messages provided by pgAdmin4 or PostgreSQL during the restore attempt. These messages can offer valuable insights into what went wrong. Look for specific error codes or descriptions that can guide your troubleshooting.

Check Available Disk Space

Insufficient disk space can result in a failed database restore. Ensure that there is enough free space on the disk where PostgreSQL is storing its data.

Use the Command Line for Restoration

If pgAdmin4's graphical interface is causing issues, try restoring the database using the command line. Use the following command:

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Replace placeholders with your actual username, database name, and backup file.

Review PostgreSQL Log Files

Examine the PostgreSQL log files for any additional information about the failure. The log files are typically located in the PostgreSQL data directory.

By systematically addressing these potential issues, you can troubleshoot the "Failed (exit code: 1)" error and successfully restore your PostgreSQL database from a .tar file using pgAdmin4.

Remember to adapt the solutions to your specific environment and backup circumstances. If the issue persists, seeking assistance from PostgreSQL forums or communities can provide additional insights into your particular situation.