How to fix Error 5290 on Windows Server 2025 / Windows 11

by

Troubleshooting Guide: Error 5290 – Columnstore Index Data Inconsistency in SQL Server 2025

Why This Error Happens

Error 5290 occurs when the data pages within a columnstore index segment contain values that do not match the metadata stored in the catalog views, typically due to physical corruption on disk, an improperly terminated write operation, or storage subsystem failures. This can also arise from bit-level corruption caused by faulty RAM, disk controller issues, or an abrupt server shutdown during a columnstore rebuild or compression operation. In some cases, it is triggered after restoring a backup that was taken while the columnstore index was in an inconsistent transactional state.

Step-by-Step Resolution Guide

Step 1: Confirm and Scope the Corruption

  • Open SQL Server Management Studio (SSMS) and connect to the affected instance on your Windows Server 2025 host.
  • Run DBCC CHECKDB ('YourDatabaseName') WITH NO_INFOMSGS, ALL_ERRORMSGS; to get a full corruption report.
  • Note the specific object ID and index ID referenced in the error output to isolate which columnstore index is affected.
  • Check the SQL Server Error Log (default path: C:\Program Files\Microsoft SQL Server\MSSQL17.MSSQLSERVER\MSSQL\Log\ERRORLOG) for related I/O or disk warnings around the time of corruption.

Step 2: Rule Out Hardware and Storage Issues

  • Check Windows Event Viewer under Windows Logs > System for Disk or NTFS warnings (Event ID 7 or 153) that indicate underlying storage failures.
  • Run chkdsk C: /f /r (replace with the correct drive letter hosting your .mdf/.ndf files) during a maintenance window to repair file system-level errors.
  • If using virtualized storage (Hyper-V or Azure VM), verify the virtual disk and host storage array are healthy and not reporting latency spikes.

Step 3: Rebuild the Corrupted Columnstore Index

  • If DBCC CHECKDB confirms only the columnstore index is affected (not the base table heap/clustered index), drop and rebuild it:
  • Execute ALTER INDEX [YourColumnstoreIndexName] ON [dbo].[YourTableName] REBUILD;
  • For partitioned columnstore indexes, rebuild only the specific partition: ALTER INDEX [YourColumnstoreIndexName] ON [dbo].[YourTableName] REBUILD PARTITION = 5;
  • Monitor the tempdb space usage during rebuild, as columnstore rebuilds are resource-intensive and require adequate working space.

Step 4: Restore from Backup if Rebuild Fails

  • If the rebuild operation itself fails or errors persist, restore the database from the last known good full backup.
  • Use RESTORE DATABASE [YourDatabaseName] FROM DISK = 'D:\Backups\YourDatabase.bak' WITH REPLACE, RECOVERY;
  • Apply any subsequent transaction log backups to minimize data loss, ensuring the columnstore index was healthy at that backup point.

Step 5: As a Last Resort, Use Repair Options

  • If no valid backup exists, run DBCC CHECKDB ('YourDatabaseName', REPAIR_REBUILD) first, as this is non-destructive.
  • Only if REPAIR_REBUILD fails, use DBCC CHECKDB ('YourDatabaseName', REPAIR_ALLOW_DATA_LOSS) as a final measure, understanding this may delete corrupted rows permanently.
  • Always take a full backup of the current (corrupted) state before running repair commands, in case the repair needs to be reversed.

Alternative or Verification Steps

  • After rebuilding or restoring, re-run DBCC CHECKDB ('YourDatabaseName') WITH NO_INFOMSGS, ALL_ERRORMSGS; and confirm it returns zero allocation and consistency errors.
  • As a long-term alternative, enable Instant File Initialization and configure disk-level redundancy (RAID 10) to reduce the likelihood of future I/O-related corruption impacting columnstore structures.