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EnterpriseDB Technical Alert for Backup and Recovery Tool (BART) 2.0 and 2.1 #20180521
EDB TECHNICAL ALERT
EDB TECHNICAL ALERT SEVERITY Critical
ALERT FOCUS Thisalertis for customers using: -EnterpriseDBBackupandRecoveryToolv2.0 and v2.1
RECOMMENDED ACTIONS Status:Critical Recommended:An issue has been found with theBART2.0and2.1incrementalbackupfeature. Under an isolated circumstance, if the VACUUM command has been executed between the fullbackupand incrementalbackup(s), incrementalbackup(s) have been found to have data corruption. This causes an issue when doing a restore which has the data corruption issue and starting the database server using the restored cluster. This issue was found through the course of low-probability hardening tests and has not been observed in any customer environments to date.
WHAT IS IN THIS ALERT
ThisTechnicalAlertis notifying you of potential data corruption in incrementalbackupfor EDBBackupandRecoveryToolv2.0 and v2.1. This issue can arise in certain isolated circumstances if VACUUM command has been executed between full and incrementalbackup(s).
It is recommended to perform a full backup as soon as practical and disregard any previous incremental backups.
A separate communication expected in the next week will have instructions for accessing the mandatory patch for BART2.0 and 2.1. Included in this patch will be a tool that allows you to check if an incremental backup contains this issue.
After the mandatory patch is applied incremental backups can be performed as usual.
IS THIS ALERT FOR ME?
Thisalertis for EDB customers using EDBBackupandRecoveryToolv2.0 and v2.1.
Specifically for those customers using the incremental backup feature.
TROUBLESHOOTING If you experience any problems applying the upgrade or restoring the old version after applying the upgrade, please contact Technical Support at: