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[root@centos7g2 ~]# su - postgres -c "pg_probackup backup -B /mnt/probackup -b FULL --instance data --delete-expired --delete-wal -j 4"
LOG: This PostgreSQL instance was initialized with data block checksums. Data block corruption will be detected
WARNING: Current PostgreSQL role is superuser. It is not recommended to run backup or checkdb as superuser.
INFO: Backup start, pg_probackup version: 2.1.5, instance: data, backup ID: PZ0EPH, backup mode: FULL, wal-method: ARCHIVE, remote: false, replica: false, compress-algorithm: zlib, compress-level: 5
LOG: Backup destination is initialized
LOG: Database backup start
LOG: Looking for segment: 0000002400000002000000F4
LOG: Found WAL segment: /mnt/probackup/wal/data/0000002400000002000000F4
INFO: Start transferring data files
INFO: Data files are transferred
INFO: wait for pg_stop_backup()
INFO: pg_stop backup() successfully executed
WARNING: Invalid stop_backup_lsn value 2/F578A000
LOG: Looking for segment: 0000002400000002000000F4
LOG: Found WAL segment: /mnt/probackup/wal/data/0000002400000002000000F4
LOG: Thread [0]: Opening WAL segment "/mnt/probackup/wal/data/0000002400000002000000F4"
LOG: Getting the Recovery Time from WAL
LOG: Thread [0]: Opening WAL segment "/mnt/probackup/wal/data/0000002400000002000000F4"
LOG: Failed to find Recovery Time in WAL. Forced to trust current_timestamp
INFO: Validating backup PZ0EPH
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16437, block 0, checksum is correct. Page is from future: pageLSN 2/F50222E8 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16437, block 7, checksum is correct. Page is from future: pageLSN 2/F501A7D8 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16439, block 0, checksum is correct. Page is from future: pageLSN 2/F5016730 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16439, block 5, checksum is correct. Page is from future: pageLSN 2/F5006830 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16439, block 6, checksum is correct. Page is from future: pageLSN 2/F50222A0 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16439, block 7, checksum is correct. Page is from future: pageLSN 2/F5018830 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/114763, block 134, checksum is correct. Page is from future: pageLSN 2/F50244C8 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16439, block 314, checksum is correct. Page is from future: pageLSN 2/F501A790 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16436, block 13949, checksum is correct. Page is from future: pageLSN 2/F5002020 stopLSN 2/F4BA5F58
WARNING: File: /mnt/probackup/backups/data/PZ0EPH/database/base/16423/16436, block 31366, checksum is correct. Page is from future: pageLSN 2/F501A748 stopLSN 2/F4BA5F58
WARNING: Backup PZ0EPH data files are corrupted
INFO: Backup PZ0EPH real size: 46MB
ERROR: Backup PZ0EPH failed