Hardware failure corrupting index pages. Bug in PostgreSQL causing index inconsistency. Disk full during an index rebuild operation. Unclean server shutdown during index creation

Step 1: Identify the corrupt index from the error message.. Step 2: Drop and rebuild the index: `REINDEX INDEX CONCURRENTLY ;`. Step 3: Validate the rebuilt index: `SELECT * FROM pg_indexes WHERE indexname=' ';`. Step 4: Check disk health to rule out hardware as the root cause.

Critical severityconfiguration

Power BI Refresh Error:
XX002

What does this error mean?

A PostgreSQL index has been detected as corrupted. Queries using the index may return incorrect results or fail.

Common causes

1Hardware failure corrupting index pages
2Bug in PostgreSQL causing index inconsistency
3Disk full during an index rebuild operation
4Unclean server shutdown during index creation

How to fix it

1Step 1: Identify the corrupt index from the error message.
2Step 2: Drop and rebuild the index: `REINDEX INDEX CONCURRENTLY <index_name>;`
3Step 3: Validate the rebuilt index: `SELECT * FROM pg_indexes WHERE indexname='<index_name>';`
4Step 4: Check disk health to rule out hardware as the root cause.

Frequently asked questions

How do I prevent XX002 errors in automated pipelines?

Add retry logic with exponential backoff, validate data quality before loading, and monitor pipeline failures in MetricSign to catch this error early.

Official documentation: https://www.postgresql.org/docs/current/errcodes-appendix.html