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Whaleal Platform (WAP) FAQ – Backup & Restore Issues

WAP Version: 4.0

Document Type: Backup FAQ

Description: This document summarizes common issues and recommended solutions related to WAP backup and restore operations, suitable for backup management and data recovery reference.

Severity / Impact Scope Definitions

  • Severity Levels: Critical, Major, Minor
  • Impact Scope: Single Node, Cluster, Full Platform

Q7: Backup Task Failure

Severity: Major Impact Scope: Cluster

Possible Causes:

  • Insufficient resources on the DDT Server
  • MongoDB account does not have sufficient privileges
  • Network interruptions causing data fetch failures

Recommended Solutions:

  • Review backup task logs to identify the failure stage
  • Check DDT Server CPU, memory, and disk utilization
  • Ensure the MongoDB user has the required backup privileges

Q8: Restore Task Failure or Incomplete Data

Severity: Critical Impact Scope: Cluster

Possible Causes:

  • Improper selection of restore point
  • Missing or non-continuous oplog
  • Target cluster does not meet resource requirements

Recommended Solutions:

  • Verify that both full backups and oplog backups are complete
  • Ensure the oplog time range covers the target restore point
  • Avoid write operations on the target cluster during the restore task