How to solve sqlserver database recovery hang

How to solve SQL Server database recovery hang

1. Identify the cause of hang

1. Insufficient resources:

• Check whether the server memory, CPU and disk space are insufficient.
• Consider increasing server resources or optimizing resource allocation.

2. Locking issues:

• Check whether there is a deadlock or long lock contention.
• Use SQL Server Profiler or other tools for tracing to identify locking issues.

3. Log file problems:

• Check the log file for errors or is full.
• Expand the log file size or repair damaged log files.

4. Other database problems:

• Check whether the database is damaged or inconsistent.
• Try to use DBCC CHECKDB or other tools to repair the database.

2. Solve the hanging problem

1. Add server resources:

• In the server Add more memory or CPU.
• Upgrade to hardware with better performance.

2. Unlock:

• Use the KILL statement to terminate the session holding the lock.
• Adjust database settings to reduce lock contention.

3. Repair the log file:

• Back up the log file.
• Delete corrupted log files.
• Use the WITH NORECOVERY option when starting the database, and then use RESTORE LOG to reapply the log file.

4. Repair the database:

• Use DBCC CHECKDB to repair the database.
• If CHECKDB cannot repair the damage, use SQL Server's recovery model.

5. Rebuild the index:

• Fragmented index may cause slower recovery.
• Rebuild the index to improve recovery performance.

6. Other notes:

• Make sure the database backup is up to date and available.
• Maintain the database regularly to prevent problems.
• Monitor server and database activity to identify potential problems.

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