PgbackRest : backup command end: aborted with exception [101] - Mailing list pgsql-general

I am running pgbackrest 2.52.1  on RHEL 9.4  Postgres 16 for  backup to a remote repository for the last 4 months. All works fine in the initial months. 

Recently the full backup always fails without completing the backup to Repo Server.

Only differential backup is completing the process  as scheduled .   Whenever a  full backup is scheduled,  after running for  hours it fails  with error as in the subject line.  Earlier it was working and the last full backup was completed in April 2026 .  Rest of the period  differential backup only  completes all full backup  processes failed till today. 

Yesterday 18 June 2026 at 09:30 AM I ran the  full backup from a cron scheduler explicitly to test, it runs almost 24 hours and today 19 June  10.49 AM it stopped the full backup,   Aborted the process. 

Thank you,

Krishane

2026-06-19 10:49:12.499 P00  DEBUG:     command/backup/backup::backupJobResult: => void
2026-06-19 10:49:12.590 P00  DEBUG:     command/backup/backup::backupDbPing: (backupData: {BackupData}, force: false)
2026-06-19 10:49:12.590 P00  DEBUG:     db/db::dbPing: (this: {client: null, remoteClient: {name: remote-0 ssh protocol on '10.140.0.20', state: idle}}, force: false)
2026-06-19 10:49:12.590 P00  DEBUG:     db/db::dbIsInRecovery: (this: {client: null, remoteClient: {name: remote-0 ssh protocol on '10.140.0.202', state: idle}})
2026-06-19 10:49:12.590 P00  DEBUG:     db/db::dbQueryColumn: (this: {client: null, remoteClient: {name: remote-0 ssh protocol on '10.140.0.202', state: idle}}, query: {"select pg_catalog.pg_is_in_recovery()"})
2026-06-19 10:49:12.590 P00  DEBUG:     db/db::dbQuery: (this: {client: null, remoteClient: {name: remote-0 ssh protocol on '10.140.0.202', state: idle}}, resultType: column, query: {"select pg_catalog.pg_is_in_recovery()"})
2026-06-19 10:49:12.739 P00  DEBUG:     command/exit::exitSafe: (result: 0, error: true, signalType: 0)
2026-06-19 10:49:12.739 P00  ERROR: [101]: raised from remote-0 ssh protocol on '10.140.0.202': NULL result required to complete request
                                    --------------------------------------------------------------------
                                    If SUBMITTING AN ISSUE please provide the following information:

                                    version: 2.52.1
                                    command: backup
                                    options: --delta --exec-id=485653-6407012b --log-level-console=info --log-level-file=debug --pg1-host=10.140.0.202 --pg1-host-user=postgres --pg1-path=/var/postgres16/data --pg-version-force=16 --process-max=5 --repo1-block --repo1-bundle --repo1-cipher-pass=<redacted> --repo1-cipher-type=aes-256-cbc --repo1-path=/data/DB_BACKUPS --repo1-retention-diff=2 --repo1-retention-full=2 --stanza=Traffic_Repo --start-fast --type=full

                                    stack trace:
                                    postgres/client.c:pgClientQuery:348:(debug log level required for parameters)
                                    db/protocol.c:dbQueryProtocol:(debug log level required for parameters)
                                    protocol/server.c:protocolServerProcess:(debug log level required for parameters)
                                    command/remote/remote.c:cmdRemote:(debug log level required for parameters)
                                    main.c:main:(debug log level required for parameters)
                                    --------------------------------------------------------------------
2026-06-19 10:49:12.740 P00   INFO: backup command end: aborted with exception [101]
2026-06-19 10:49:12.740 P00  DEBUG:     command/exit::exitSafe: => 101